C++程序
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3432行
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108.18 KB
#ifdef lint
#define WANT_UNIX
#define DIRTY
#define WANT_INTERVALS
#endif /* lint */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef WANT_UNIX
char nettest_unix_id[]="\
@(#)nettest_unix.c (c) Copyright 1994-2007 Hewlett-Packard Co. Version 2.4.3";
/****************************************************************/
/* */
/* nettest_bsd.c */
/* */
/* the BSD sockets parsing routine... */
/* */
/* scan_unix_args() */
/* */
/* the actual test routines... */
/* */
/* send_stream_stream() perform a stream stream test */
/* recv_stream_stream() */
/* send_stream_rr() perform a stream request/response */
/* recv_stream_rr() */
/* send_dg_stream() perform a dg stream test */
/* recv_dg_stream() */
/* send_dg_rr() perform a dg request/response */
/* recv_dg_rr() */
/* loc_cpu_rate() determine the local cpu maxrate */
/* rem_cpu_rate() find the remote cpu maxrate */
/* */
/****************************************************************/
/* at some point, I might want to go-in and see if I really need all */
/* these includes, but for the moment, we'll let them all just sit */
/* there. raj 8/94 */
#include <sys/types.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#ifndef WIN32
#include <sys/ipc.h>
#include <sys/socket.h>
#include <errno.h>
#include <signal.h>
#include <sys/un.h>
#include <unistd.h>
#else /* WIN32 */
#include <process.h>
#include <winsock2.h>
#include <windows.h>
#endif /* WIN32 */
#include <string.h>
#include <time.h>
#include <sys/time.h>
#ifdef NOSTDLIBH
#include <malloc.h>
#else /* NOSTDLIBH */
#include <stdlib.h>
#endif /* NOSTDLIBH */
#include <sys/stat.h>
#include "netlib.h"
#include "netsh.h"
#include "nettest_unix.h"
/* these variables are specific to the UNIX sockets tests. declare */
/* them static to make them global only to this file. */
#define UNIX_PRFX "netperf."
#define UNIX_LENGTH_MAX 0xFFFF - 28
static char
path_prefix[32];
static int
rss_size, /* remote socket send buffer size */
rsr_size, /* remote socket recv buffer size */
lss_size_req, /* requested local socket send buffer size */
lsr_size_req, /* requested local socket recv buffer size */
lss_size, /* local socket send buffer size */
lsr_size, /* local socket recv buffer size */
req_size = 1, /* request size */
rsp_size = 1, /* response size */
send_size, /* how big are individual sends */
recv_size; /* how big are individual receives */
/* different options for the sockets */
char unix_usage[] = "\n\
Usage: netperf [global options] -- [test options] \n\
\n\
STREAM/DG UNIX Sockets Test Options:\n\
-h Display this text\n\
-m bytes Set the send size (STREAM_STREAM, DG_STREAM)\n\
-M bytes Set the recv size (STREAM_STREAM, DG_STREAM)\n\
-p dir Set the directory where pipes are created\n\
-r req,res Set request,response size (STREAM_RR, DG_RR)\n\
-s send[,recv] Set local socket send/recv buffer sizes\n\
-S send[,recv] Set remote socket send/recv buffer sizes\n\
\n\
For those options taking two parms, at least one must be specified;\n\
specifying one value without a comma will set both parms to that\n\
value, specifying a value with a leading comma will set just the second\n\
parm, a value with a trailing comma will set just the first. To set\n\
each parm to unique values, specify both and separate them with a\n\
comma.\n";
/* this routing initializes all the test specific variables */
static void
init_test_vars()
{
rss_size = 0;
rsr_size = 0;
lss_size_req = 0;
lsr_size_req = 0;
lss_size = 0;
lsr_size = 0;
req_size = 1;
rsp_size = 1;
send_size = 0;
recv_size = 0;
strcpy(path_prefix,"/tmp");
}
/* This routine will create a data (listen) socket with the apropriate */
/* options set and return it to the caller. this replaces all the */
/* duplicate code in each of the test routines and should help make */
/* things a little easier to understand. since this routine can be */
/* called by either the netperf or netserver programs, all output */
/* should be directed towards "where." family is generally AF_UNIX, */
/* and type will be either SOCK_STREAM or SOCK_DGRAM */
SOCKET
create_unix_socket(int family, int type)
{
SOCKET temp_socket;
int sock_opt_len;
/*set up the data socket */
temp_socket = socket(family,
type,
0);
if (temp_socket == INVALID_SOCKET){
fprintf(where,
"netperf: create_unix_socket: socket: %d\n",
errno);
fflush(where);
exit(1);
}
if (debug) {
fprintf(where,"create_unix_socket: socket %d obtained...\n",temp_socket);
fflush(where);
}
/* Modify the local socket size. The reason we alter the send buffer */
/* size here rather than when the connection is made is to take care */
/* of decreases in buffer size. Decreasing the window size after */
/* connection establishment is a STREAM no-no. Also, by setting the */
/* buffer (window) size before the connection is established, we can */
/* control the STREAM MSS (segment size). The MSS is never more that 1/2 */
/* the minimum receive buffer size at each half of the connection. */
/* This is why we are altering the receive buffer size on the sending */
/* size of a unidirectional transfer. If the user has not requested */
/* that the socket buffers be altered, we will try to find-out what */
/* their values are. If we cannot touch the socket buffer in any way, */
/* we will set the values to -1 to indicate that. */
set_sock_buffer(temp_socket, SEND_BUFFER, lss_size_req, &lss_size);
set_sock_buffer(temp_socket, RECV_BUFFER, lsr_size_req, &lsr_size);
return(temp_socket);
}
/* This routine implements the STREAM unidirectional data transfer test */
/* (a.k.a. stream) for the sockets interface. It receives its */
/* parameters via global variables from the shell and writes its */
/* output to the standard output. */
void
send_stream_stream(char remote_host[])
{
char *tput_title = "\
Recv Send Send \n\
Socket Socket Message Elapsed \n\
Size Size Size Time Throughput \n\
bytes bytes bytes secs. %s/sec \n\n";
char *tput_fmt_0 =
"%7.2f\n";
char *tput_fmt_1 =
"%5d %5d %6d %-6.2f %7.2f \n";
char *cpu_title = "\
Recv Send Send Utilization Service Demand\n\
Socket Socket Message Elapsed Send Recv Send Recv\n\
Size Size Size Time Throughput local remote local remote\n\
bytes bytes bytes secs. %-8.8s/s %% %% us/KB us/KB\n\n";
char *cpu_fmt_0 =
"%6.3f\n";
char *cpu_fmt_1 =
"%5d %5d %6d %-6.2f %7.2f %-6.2f %-6.2f %-6.3f %-6.3f\n";
char *ksink_fmt = "\n\
Alignment Offset %-8.8s %-8.8s Sends %-8.8s Recvs\n\
Local Remote Local Remote Xfered Per Per\n\
Send Recv Send Recv Send (avg) Recv (avg)\n\
%5d %5d %5d %5d %6.4g %6.2f %6d %6.2f %6d\n";
float elapsed_time;
#ifdef WANT_INTERVALS
int interval_count;
#endif
/* what we want is to have a buffer space that is at least one */
/* send-size greater than our send window. this will insure that we */
/* are never trying to re-use a buffer that may still be in the hands */
/* of the transport. This buffer will be malloc'd after we have found */
/* the size of the local senc socket buffer. We will want to deal */
/* with alignment and offset concerns as well. */
#ifdef DIRTY
int *message_int_ptr;
#endif
#include <sys/stat.h>
struct ring_elt *send_ring;
int len = 0;
int nummessages;
SOCKET send_socket;
int bytes_remaining;
/* with links like fddi, one can send > 32 bits worth of bytes */
/* during a test... ;-) */
double bytes_sent;
#ifdef DIRTY
int i;
#endif /* DIRTY */
float local_cpu_utilization;
float local_service_demand;
float remote_cpu_utilization;
float remote_service_demand;
double thruput;
struct sockaddr_un server;
struct stream_stream_request_struct *stream_stream_request;
struct stream_stream_response_struct *stream_stream_response;
struct stream_stream_results_struct *stream_stream_result;
stream_stream_request =
(struct stream_stream_request_struct *)netperf_request.content.test_specific_data;
stream_stream_response =
(struct stream_stream_response_struct *)netperf_response.content.test_specific_data;
stream_stream_result =
(struct stream_stream_results_struct *)netperf_response.content.test_specific_data;
/* since we are now disconnected from the code that established the */
/* control socket, and since we want to be able to use different */
/* protocols and such, we are passed the name of the remote host and */
/* must turn that into the test specific addressing information. */
bzero((char *)&server,
sizeof(server));
server.sun_family = AF_UNIX;
if ( print_headers ) {
fprintf(where,"STREAM STREAM TEST\n");
if (local_cpu_usage || remote_cpu_usage)
fprintf(where,cpu_title,format_units());
else
fprintf(where,tput_title,format_units());
}
/* initialize a few counters */
nummessages = 0;
bytes_sent = 0.0;
times_up = 0;
/*set up the data socket */
send_socket = create_unix_socket(AF_UNIX,
SOCK_STREAM);
if (send_socket == INVALID_SOCKET){
perror("netperf: send_stream_stream: stream stream data socket");
exit(1);
}
if (debug) {
fprintf(where,"send_stream_stream: send_socket obtained...\n");
}
/* at this point, we have either retrieved the socket buffer sizes, */
/* or have tried to set them, so now, we may want to set the send */
/* size based on that (because the user either did not use a -m */
/* option, or used one with an argument of 0). If the socket buffer */
/* size is not available, we will set the send size to 4KB - no */
/* particular reason, just arbitrary... */
if (send_size == 0) {
if (lss_size > 0) {
send_size = lss_size;
}
else {
send_size = 4096;
}
}
/* set-up the data buffer ring with the requested alignment and offset. */
/* note also that we have allocated a quantity */
/* of memory that is at least one send-size greater than our socket */
/* buffer size. We want to be sure that there are at least two */
/* buffers allocated - this can be a bit of a problem when the */
/* send_size is bigger than the socket size, so we must check... the */
/* user may have wanted to explicitly set the "width" of our send */
/* buffers, we should respect that wish... */
if (send_width == 0) {
send_width = (lss_size/send_size) + 1;
if (send_width == 1) send_width++;
}
send_ring = allocate_buffer_ring(send_width,
send_size,
local_send_align,
local_send_offset);
/* If the user has requested cpu utilization measurements, we must */
/* calibrate the cpu(s). We will perform this task within the tests */
/* themselves. If the user has specified the cpu rate, then */
/* calibrate_local_cpu will return rather quickly as it will have */
/* nothing to do. If local_cpu_rate is zero, then we will go through */
/* all the "normal" calibration stuff and return the rate back.*/
if (local_cpu_usage) {
local_cpu_rate = calibrate_local_cpu(local_cpu_rate);
}
/* Tell the remote end to do a listen. The server alters the socket */
/* paramters on the other side at this point, hence the reason for */
/* all the values being passed in the setup message. If the user did */
/* not specify any of the parameters, they will be passed as 0, which */
/* will indicate to the remote that no changes beyond the system's */
/* default should be used. Alignment is the exception, it will */
/* default to 1, which will be no alignment alterations. */
netperf_request.content.request_type = DO_STREAM_STREAM;
stream_stream_request->send_buf_size = rss_size;
stream_stream_request->recv_buf_size = rsr_size;
stream_stream_request->receive_size = recv_size;
stream_stream_request->recv_alignment = remote_recv_align;
stream_stream_request->recv_offset = remote_recv_offset;
stream_stream_request->measure_cpu = remote_cpu_usage;
stream_stream_request->cpu_rate = remote_cpu_rate;
if (test_time) {
stream_stream_request->test_length = test_time;
}
else {
stream_stream_request->test_length = test_bytes;
}
#ifdef DIRTY
stream_stream_request->dirty_count = rem_dirty_count;
stream_stream_request->clean_count = rem_clean_count;
#endif /* DIRTY */
if (debug > 1) {
fprintf(where,
"netperf: send_stream_stream: requesting STREAM stream test\n");
}
send_request();
/* The response from the remote will contain all of the relevant */
/* socket parameters for this test type. We will put them back into */
/* the variables here so they can be displayed if desired. The */
/* remote will have calibrated CPU if necessary, and will have done */
/* all the needed set-up we will have calibrated the cpu locally */
/* before sending the request, and will grab the counter value right */
/* after the connect returns. The remote will grab the counter right */
/* after the accept call. This saves the hassle of extra messages */
/* being sent for the STREAM tests. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote listen done.\n");
rsr_size = stream_stream_response->recv_buf_size;
rss_size = stream_stream_response->send_buf_size;
remote_cpu_usage = stream_stream_response->measure_cpu;
remote_cpu_rate = stream_stream_response->cpu_rate;
strcpy(server.sun_path,stream_stream_response->unix_path);
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: send_stream_stream: remote error");
exit(1);
}
/*Connect up to the remote port on the data socket */
if (connect(send_socket,
(struct sockaddr *)&server,
sizeof(server)) == INVALID_SOCKET){
perror("netperf: send_stream_stream: data socket connect failed");
printf(" path: %s\n",server.sun_path);
exit(1);
}
/* Data Socket set-up is finished. If there were problems, either the */
/* connect would have failed, or the previous response would have */
/* indicated a problem. I failed to see the value of the extra */
/* message after the accept on the remote. If it failed, we'll see it */
/* here. If it didn't, we might as well start pumping data. */
/* Set-up the test end conditions. For a stream test, they can be */
/* either time or byte-count based. */
if (test_time) {
/* The user wanted to end the test after a period of time. */
times_up = 0;
bytes_remaining = 0;
start_timer(test_time);
}
else {
/* The tester wanted to send a number of bytes. */
bytes_remaining = test_bytes;
times_up = 1;
}
/* The cpu_start routine will grab the current time and possibly */
/* value of the idle counter for later use in measuring cpu */
/* utilization and/or service demand and thruput. */
cpu_start(local_cpu_usage);
/* We use an "OR" to control test execution. When the test is */
/* controlled by time, the byte count check will always return false. */
/* When the test is controlled by byte count, the time test will */
/* always return false. When the test is finished, the whole */
/* expression will go false and we will stop sending data. */
#ifdef DIRTY
/* initialize the random number generator for putting dirty stuff */
/* into the send buffer. raj */
srand((int) getpid());
#endif
while ((!times_up) || (bytes_remaining > 0)) {
#ifdef DIRTY
/* we want to dirty some number of consecutive integers in the buffer */
/* we are about to send. we may also want to bring some number of */
/* them cleanly into the cache. The clean ones will follow any dirty */
/* ones into the cache. at some point, we might want to replace */
/* the rand() call with something from a table to reduce our call */
/* overhead during the test, but it is not a high priority item. */
message_int_ptr = (int *)(send_ring->buffer_ptr);
for (i = 0; i < loc_dirty_count; i++) {
*message_int_ptr = rand();
message_int_ptr++;
}
for (i = 0; i < loc_clean_count; i++) {
loc_dirty_count = *message_int_ptr;
message_int_ptr++;
}
#endif /* DIRTY */
if((len=send(send_socket,
send_ring->buffer_ptr,
send_size,
0)) != send_size) {
if ((len >=0) || (errno == EINTR)) {
/* the test was interrupted, must be the end of test */
break;
}
perror("netperf: data send error");
printf("len was %d\n",len);
exit(1);
}
#ifdef WANT_INTERVALS
for (interval_count = 0;
interval_count < interval_wate;
interval_count++);
#endif
/* now we want to move our pointer to the next position in the */
/* data buffer...we may also want to wrap back to the "beginning" */
/* of the bufferspace, so we will mod the number of messages sent */
/* by the send width, and use that to calculate the offset to add */
/* to the base pointer. */
nummessages++;
send_ring = send_ring->next;
if (bytes_remaining) {
bytes_remaining -= send_size;
}
}
/* The test is over. Flush the buffers to the remote end. We do a */
/* graceful release to insure that all data has been taken by the */
/* remote. */
if (close(send_socket) == -1) {
perror("netperf: send_stream_stream: cannot close socket");
exit(1);
}
/* this call will always give us the elapsed time for the test, and */
/* will also store-away the necessaries for cpu utilization */
cpu_stop(local_cpu_usage,&elapsed_time); /* was cpu being */
/* measured and how */
/* long did we really */
/* run? */
/* Get the statistics from the remote end. The remote will have */
/* calculated service demand and all those interesting things. If it */
/* wasn't supposed to care, it will return obvious values. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote results obtained\n");
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: remote error");
exit(1);
}
/* We now calculate what our thruput was for the test. In the future, */
/* we may want to include a calculation of the thruput measured by */
/* the remote, but it should be the case that for a STREAM stream test, */
/* that the two numbers should be *very* close... We calculate */
/* bytes_sent regardless of the way the test length was controlled. */
/* If it was time, we needed to, and if it was by bytes, the user may */
/* have specified a number of bytes that wasn't a multiple of the */
/* send_size, so we really didn't send what he asked for ;-) */
bytes_sent = ((double) send_size * (double) nummessages) + len;
thruput = calc_thruput(bytes_sent);
if (local_cpu_usage || remote_cpu_usage) {
/* We must now do a little math for service demand and cpu */
/* utilization for the system(s) */
/* Of course, some of the information might be bogus because */
/* there was no idle counter in the kernel(s). We need to make */
/* a note of this for the user's benefit...*/
if (local_cpu_usage) {
if (local_cpu_rate == 0.0) {
fprintf(where,"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n");
fprintf(where,"Local CPU usage numbers based on process information only!\n");
fflush(where);
}
local_cpu_utilization = calc_cpu_util(0.0);
local_service_demand = calc_service_demand(bytes_sent,
0.0,
0.0,
0);
}
else {
local_cpu_utilization = -1.0;
local_service_demand = -1.0;
}
if (remote_cpu_usage) {
if (remote_cpu_rate == 0.0) {
fprintf(where,"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n");
fprintf(where,"Remote CPU usage numbers based on process information only!\n");
fflush(where);
}
remote_cpu_utilization = stream_stream_result->cpu_util;
remote_service_demand = calc_service_demand(bytes_sent,
0.0,
remote_cpu_utilization,
stream_stream_result->num_cpus);
}
else {
remote_cpu_utilization = -1.0;
remote_service_demand = -1.0;
}
/* We are now ready to print all the information. If the user */
/* has specified zero-level verbosity, we will just print the */
/* local service demand, or the remote service demand. If the */
/* user has requested verbosity level 1, he will get the basic */
/* "streamperf" numbers. If the user has specified a verbosity */
/* of greater than 1, we will display a veritable plethora of */
/* background information from outside of this block as it it */
/* not cpu_measurement specific... */
switch (verbosity) {
case 0:
if (local_cpu_usage) {
fprintf(where,
cpu_fmt_0,
local_service_demand);
}
else {
fprintf(where,
cpu_fmt_0,
remote_service_demand);
}
break;
case 1:
case 2:
fprintf(where,
cpu_fmt_1, /* the format string */
rsr_size, /* remote recvbuf size */
lss_size, /* local sendbuf size */
send_size, /* how large were the sends */
elapsed_time, /* how long was the test */
thruput, /* what was the xfer rate */
local_cpu_utilization, /* local cpu */
remote_cpu_utilization, /* remote cpu */
local_service_demand, /* local service demand */
remote_service_demand); /* remote service demand */
break;
}
}
else {
/* The tester did not wish to measure service demand. */
switch (verbosity) {
case 0:
fprintf(where,
tput_fmt_0,
thruput);
break;
case 1:
case 2:
fprintf(where,
tput_fmt_1, /* the format string */
rsr_size, /* remote recvbuf size */
lss_size, /* local sendbuf size */
send_size, /* how large were the sends */
elapsed_time, /* how long did it take */
thruput);/* how fast did it go */
break;
}
}
/* it would be a good thing to include information about some of the */
/* other parameters that may have been set for this test, but at the */
/* moment, I do not wish to figure-out all the formatting, so I will */
/* just put this comment here to help remind me that it is something */
/* that should be done at a later time. */
if (verbosity > 1) {
/* The user wanted to know it all, so we will give it to him. */
/* This information will include as much as we can find about */
/* STREAM statistics, the alignments of the sends and receives */
/* and all that sort of rot... */
fprintf(where,
ksink_fmt,
"Bytes",
"Bytes",
"Bytes",
local_send_align,
remote_recv_align,
local_send_offset,
remote_recv_offset,
bytes_sent,
bytes_sent / (double)nummessages,
nummessages,
bytes_sent / (double)stream_stream_result->recv_calls,
stream_stream_result->recv_calls);
}
}
/* This is the server-side routine for the stream stream test. It is */
/* implemented as one routine. I could break things-out somewhat, but */
/* didn't feel it was necessary. */
void
recv_stream_stream()
{
struct sockaddr_un myaddr_un, peeraddr_un;
SOCKET s_listen,s_data;
int addrlen;
int len;
int receive_calls = 0;
float elapsed_time;
int bytes_received;
struct ring_elt *recv_ring;
#ifdef DIRTY
char *message_ptr;
int *message_int_ptr;
int dirty_count;
int clean_count;
int i;
#endif
struct stream_stream_request_struct *stream_stream_request;
struct stream_stream_response_struct *stream_stream_response;
struct stream_stream_results_struct *stream_stream_results;
stream_stream_request =
(struct stream_stream_request_struct *)netperf_request.content.test_specific_data;
stream_stream_response =
(struct stream_stream_response_struct *)netperf_response.content.test_specific_data;
stream_stream_results =
(struct stream_stream_results_struct *)netperf_response.content.test_specific_data;
if (debug) {
fprintf(where,"netserver: recv_stream_stream: entered...\n");
fflush(where);
}
/* We want to set-up the listen socket with all the desired */
/* parameters and then let the initiator know that all is ready. If */
/* socket size defaults are to be used, then the initiator will have */
/* sent us 0's. If the socket sizes cannot be changed, then we will */
/* send-back what they are. If that information cannot be determined, */
/* then we send-back -1's for the sizes. If things go wrong for any */
/* reason, we will drop back ten yards and punt. */
/* If anything goes wrong, we want the remote to know about it. It */
/* would be best if the error that the remote reports to the user is */
/* the actual error we encountered, rather than some bogus unexpected */
/* response type message. */
if (debug) {
fprintf(where,"recv_stream_stream: setting the response type...\n");
fflush(where);
}
netperf_response.content.response_type = STREAM_STREAM_RESPONSE;
if (debug) {
fprintf(where,"recv_stream_stream: the response type is set...\n");
fflush(where);
}
/* We now alter the message_ptr variable to be at the desired */
/* alignment with the desired offset. */
if (debug) {
fprintf(where,"recv_stream_stream: requested alignment of %d\n",
stream_stream_request->recv_alignment);
fflush(where);
}
/* Let's clear-out our sockaddr for the sake of cleanlines. Then we */
/* can put in OUR values !-) At some point, we may want to nail this */
/* socket to a particular network-level address, but for now, */
/* INADDR_ANY should be just fine. */
bzero((char *)&myaddr_un,
sizeof(myaddr_un));
myaddr_un.sun_family = AF_UNIX;
/* Grab a socket to listen on, and then listen on it. */
if (debug) {
fprintf(where,"recv_stream_stream: grabbing a socket...\n");
fflush(where);
}
/* create_unix_socket expects to find some things in the global */
/* variables, so set the globals based on the values in the request. */
/* once the socket has been created, we will set the response values */
/* based on the updated value of those globals. raj 7/94 */
lss_size_req = stream_stream_request->send_buf_size;
lsr_size_req = stream_stream_request->recv_buf_size;
s_listen = create_unix_socket(AF_UNIX,
SOCK_STREAM);
if (s_listen == INVALID_SOCKET) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
/* Let's get an address assigned to this socket so we can tell the */
/* initiator how to reach the data socket. There may be a desire to */
/* nail this socket to a specific IP address in a multi-homed, */
/* multi-connection situation, but for now, we'll ignore the issue */
/* and concentrate on single connection testing. */
strcpy(myaddr_un.sun_path,tempnam(path_prefix,"netperf."));
if (debug) {
fprintf(where,"selected a path of %s\n",myaddr_un.sun_path);
fflush(where);
}
if (bind(s_listen,
(struct sockaddr *)&myaddr_un,
sizeof(myaddr_un)) == SOCKET_ERROR) {
netperf_response.content.serv_errno = errno;
fprintf(where,"could not bind to path\n");
close(s_listen);
send_response();
exit(1);
}
chmod(myaddr_un.sun_path, 0666);
/* what sort of sizes did we end-up with? */
if (stream_stream_request->receive_size == 0) {
if (lsr_size > 0) {
recv_size = lsr_size;
}
else {
recv_size = 4096;
}
}
else {
recv_size = stream_stream_request->receive_size;
}
/* we want to set-up our recv_ring in a manner analagous to what we */
/* do on the sending side. this is more for the sake of symmetry */
/* than for the needs of say copy avoidance, but it might also be */
/* more realistic - this way one could conceivably go with a */
/* double-buffering scheme when taking the data an putting it into */
/* the filesystem or something like that. raj 7/94 */
if (recv_width == 0) {
recv_width = (lsr_size/recv_size) + 1;
if (recv_width == 1) recv_width++;
}
recv_ring = allocate_buffer_ring(recv_width,
recv_size,
stream_stream_request->recv_alignment,
stream_stream_request->recv_offset);
if (debug) {
fprintf(where,"recv_stream_stream: receive alignment and offset set...\n");
fflush(where);
}
/* Now, let's set-up the socket to listen for connections */
if (listen(s_listen, 5) == SOCKET_ERROR) {
netperf_response.content.serv_errno = errno;
close(s_listen);
send_response();
exit(1);
}
/* now get the port number assigned by the system */
addrlen = sizeof(myaddr_un);
if (getsockname(s_listen,
(struct sockaddr *)&myaddr_un,
&addrlen) == SOCKET_ERROR){
netperf_response.content.serv_errno = errno;
close(s_listen);
send_response();
exit(1);
}
/* Now myaddr_un contains the path */
/* returned to the sender also implicitly telling the sender that the */
/* socket buffer sizing has been done. */
strcpy(stream_stream_response->unix_path,myaddr_un.sun_path);
netperf_response.content.serv_errno = 0;
/* But wait, there's more. If the initiator wanted cpu measurements, */
/* then we must call the calibrate routine, which will return the max */
/* rate back to the initiator. If the CPU was not to be measured, or */
/* something went wrong with the calibration, we will return a -1 to */
/* the initiator. */
stream_stream_response->cpu_rate = 0.0; /* assume no cpu */
if (stream_stream_request->measure_cpu) {
stream_stream_response->measure_cpu = 1;
stream_stream_response->cpu_rate =
calibrate_local_cpu(stream_stream_request->cpu_rate);
}
/* before we send the response back to the initiator, pull some of */
/* the socket parms from the globals */
stream_stream_response->send_buf_size = lss_size;
stream_stream_response->recv_buf_size = lsr_size;
stream_stream_response->receive_size = recv_size;
send_response();
addrlen = sizeof(peeraddr_un);
if ((s_data=accept(s_listen,
(struct sockaddr *)&peeraddr_un,
&addrlen)) == INVALID_SOCKET) {
/* Let's just punt. The remote will be given some information */
close(s_listen);
exit(1);
}
/* Now it's time to start receiving data on the connection. We will */
/* first grab the apropriate counters and then start grabbing. */
cpu_start(stream_stream_request->measure_cpu);
/* The loop will exit when the sender does a shutdown, which will */
/* return a length of zero */
#ifdef DIRTY
/* we want to dirty some number of consecutive integers in the buffer */
/* we are about to recv. we may also want to bring some number of */
/* them cleanly into the cache. The clean ones will follow any dirty */
/* ones into the cache. */
dirty_count = stream_stream_request->dirty_count;
clean_count = stream_stream_request->clean_count;
message_int_ptr = (int *)recv_ring->buffer_ptr;
for (i = 0; i < dirty_count; i++) {
*message_int_ptr = rand();
message_int_ptr++;
}
for (i = 0; i < clean_count; i++) {
dirty_count = *message_int_ptr;
message_int_ptr++;
}
#endif /* DIRTY */
bytes_received = 0;
while ((len = recv(s_data, recv_ring->buffer_ptr, recv_size, 0)) != 0) {
if (len == SOCKET_ERROR) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
bytes_received += len;
receive_calls++;
/* more to the next buffer in the recv_ring */
recv_ring = recv_ring->next;
#ifdef DIRTY
message_int_ptr = (int *)(recv_ring->buffer_ptr);
for (i = 0; i < dirty_count; i++) {
*message_int_ptr = rand();
message_int_ptr++;
}
for (i = 0; i < clean_count; i++) {
dirty_count = *message_int_ptr;
message_int_ptr++;
}
#endif /* DIRTY */
}
/* The loop now exits due to zero bytes received. we will have */
/* counted one too many messages received, so decrement the */
/* receive_calls counter by one. raj 7/94 */
receive_calls--;
/* perform a shutdown to signal the sender that */
/* we have received all the data sent. raj 4/93 */
if (shutdown(s_data,1) == SOCKET_ERROR) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
cpu_stop(stream_stream_request->measure_cpu,&elapsed_time);
/* send the results to the sender */
if (debug) {
fprintf(where,
"recv_stream_stream: got %d bytes\n",
bytes_received);
fprintf(where,
"recv_stream_stream: got %d recvs\n",
receive_calls);
fflush(where);
}
stream_stream_results->bytes_received = bytes_received;
stream_stream_results->elapsed_time = elapsed_time;
stream_stream_results->recv_calls = receive_calls;
if (stream_stream_request->measure_cpu) {
stream_stream_results->cpu_util = calc_cpu_util(0.0);
};
if (debug > 1) {
fprintf(where,
"recv_stream_stream: test complete, sending results.\n");
fflush(where);
}
send_response();
unlink(myaddr_un.sun_path);
}
/* this routine implements the sending (netperf) side of the STREAM_RR */
/* test. */
void
send_stream_rr(char remote_host[])
{
char *tput_title = "\
Local /Remote\n\
Socket Size Request Resp. Elapsed Trans.\n\
Send Recv Size Size Time Rate \n\
bytes Bytes bytes bytes secs. per sec \n\n";
char *tput_fmt_0 =
"%7.2f\n";
char *tput_fmt_1_line_1 = "\
%-6d %-6d %-6d %-6d %-6.2f %7.2f \n";
char *tput_fmt_1_line_2 = "\
%-6d %-6d\n";
char *cpu_title = "\
Local /Remote\n\
Socket Size Request Resp. Elapsed Trans. CPU CPU S.dem S.dem\n\
Send Recv Size Size Time Rate local remote local remote\n\
bytes bytes bytes bytes secs. per sec %% %% us/Tr us/Tr\n\n";
char *cpu_fmt_0 =
"%6.3f\n";
char *cpu_fmt_1_line_1 = "\
%-6d %-6d %-6d %-6d %-6.2f %-6.2f %-6.2f %-6.2f %-6.3f %-6.3f\n";
char *cpu_fmt_1_line_2 = "\
%-6d %-6d\n";
char *ksink_fmt = "\
Alignment Offset\n\
Local Remote Local Remote\n\
Send Recv Send Recv\n\
%5d %5d %5d %5d\n";
int timed_out = 0;
float elapsed_time;
int len;
char *temp_message_ptr;
int nummessages;
SOCKET send_socket;
int trans_remaining;
double bytes_xferd;
struct ring_elt *send_ring;
struct ring_elt *recv_ring;
int rsp_bytes_left;
int rsp_bytes_recvd;
float local_cpu_utilization;
float local_service_demand;
float remote_cpu_utilization;
float remote_service_demand;
double thruput;
struct sockaddr_un server;
struct stream_rr_request_struct *stream_rr_request;
struct stream_rr_response_struct *stream_rr_response;
struct stream_rr_results_struct *stream_rr_result;
stream_rr_request =
(struct stream_rr_request_struct *)netperf_request.content.test_specific_data;
stream_rr_response=
(struct stream_rr_response_struct *)netperf_response.content.test_specific_data;
stream_rr_result =
(struct stream_rr_results_struct *)netperf_response.content.test_specific_data;
/* since we are now disconnected from the code that established the */
/* control socket, and since we want to be able to use different */
/* protocols and such, we are passed the name of the remote host and */
/* must turn that into the test specific addressing information. */
bzero((char *)&server,
sizeof(server));
server.sun_family = AF_UNIX;
if ( print_headers ) {
fprintf(where,"STREAM REQUEST/RESPONSE TEST\n");
if (local_cpu_usage || remote_cpu_usage)
fprintf(where,cpu_title,format_units());
else
fprintf(where,tput_title,format_units());
}
/* initialize a few counters */
nummessages = 0;
bytes_xferd = 0.0;
times_up = 0;
/* set-up the data buffers with the requested alignment and offset. */
/* since this is a request/response test, default the send_width and */
/* recv_width to 1 and not two raj 7/94 */
if (send_width == 0) send_width = 1;
if (recv_width == 0) recv_width = 1;
send_ring = allocate_buffer_ring(send_width,
req_size,
local_send_align,
local_send_offset);
recv_ring = allocate_buffer_ring(recv_width,
rsp_size,
local_recv_align,
local_recv_offset);
/*set up the data socket */
send_socket = create_unix_socket(AF_UNIX,
SOCK_STREAM);
if (send_socket == INVALID_SOCKET){
perror("netperf: send_stream_rr: stream stream data socket");
exit(1);
}
if (debug) {
fprintf(where,"send_stream_rr: send_socket obtained...\n");
}
/* If the user has requested cpu utilization measurements, we must */
/* calibrate the cpu(s). We will perform this task within the tests */
/* themselves. If the user has specified the cpu rate, then */
/* calibrate_local_cpu will return rather quickly as it will have */
/* nothing to do. If local_cpu_rate is zero, then we will go through */
/* all the "normal" calibration stuff and return the rate back.*/
if (local_cpu_usage) {
local_cpu_rate = calibrate_local_cpu(local_cpu_rate);
}
/* Tell the remote end to do a listen. The server alters the socket */
/* paramters on the other side at this point, hence the reason for */
/* all the values being passed in the setup message. If the user did */
/* not specify any of the parameters, they will be passed as 0, which */
/* will indicate to the remote that no changes beyond the system's */
/* default should be used. Alignment is the exception, it will */
/* default to 8, which will be no alignment alterations. */
netperf_request.content.request_type = DO_STREAM_RR;
stream_rr_request->recv_buf_size = rsr_size;
stream_rr_request->send_buf_size = rss_size;
stream_rr_request->recv_alignment= remote_recv_align;
stream_rr_request->recv_offset = remote_recv_offset;
stream_rr_request->send_alignment= remote_send_align;
stream_rr_request->send_offset = remote_send_offset;
stream_rr_request->request_size = req_size;
stream_rr_request->response_size = rsp_size;
stream_rr_request->measure_cpu = remote_cpu_usage;
stream_rr_request->cpu_rate = remote_cpu_rate;
if (test_time) {
stream_rr_request->test_length = test_time;
}
else {
stream_rr_request->test_length = test_trans * -1;
}
if (debug > 1) {
fprintf(where,"netperf: send_stream_rr: requesting STREAM rr test\n");
}
send_request();
/* The response from the remote will contain all of the relevant */
/* socket parameters for this test type. We will put them back into */
/* the variables here so they can be displayed if desired. The */
/* remote will have calibrated CPU if necessary, and will have done */
/* all the needed set-up we will have calibrated the cpu locally */
/* before sending the request, and will grab the counter value right */
/* after the connect returns. The remote will grab the counter right */
/* after the accept call. This saves the hassle of extra messages */
/* being sent for the STREAM tests. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote listen done.\n");
rsr_size = stream_rr_response->recv_buf_size;
rss_size = stream_rr_response->send_buf_size;
remote_cpu_usage= stream_rr_response->measure_cpu;
remote_cpu_rate = stream_rr_response->cpu_rate;
/* make sure that port numbers are in network order */
strcpy(server.sun_path,stream_rr_response->unix_path);
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: remote error");
exit(1);
}
/*Connect up to the remote port on the data socket */
if (connect(send_socket,
(struct sockaddr *)&server,
sizeof(server)) == INVALID_SOCKET){
perror("netperf: data socket connect failed");
exit(1);
}
/* Data Socket set-up is finished. If there were problems, either the */
/* connect would have failed, or the previous response would have */
/* indicated a problem. I failed to see the value of the extra */
/* message after the accept on the remote. If it failed, we'll see it */
/* here. If it didn't, we might as well start pumping data. */
/* Set-up the test end conditions. For a request/response test, they */
/* can be either time or transaction based. */
if (test_time) {
/* The user wanted to end the test after a period of time. */
times_up = 0;
trans_remaining = 0;
start_timer(test_time);
}
else {
/* The tester wanted to send a number of bytes. */
trans_remaining = test_bytes;
times_up = 1;
}
/* The cpu_start routine will grab the current time and possibly */
/* value of the idle counter for later use in measuring cpu */
/* utilization and/or service demand and thruput. */
cpu_start(local_cpu_usage);
/* We use an "OR" to control test execution. When the test is */
/* controlled by time, the byte count check will always return false. */
/* When the test is controlled by byte count, the time test will */
/* always return false. When the test is finished, the whole */
/* expression will go false and we will stop sending data. I think I */
/* just arbitrarily decrement trans_remaining for the timed test, but */
/* will not do that just yet... One other question is whether or not */
/* the send buffer and the receive buffer should be the same buffer. */
while ((!times_up) || (trans_remaining > 0)) {
/* send the request. we assume that if we use a blocking socket, */
/* the request will be sent at one shot. */
if((len=send(send_socket,
send_ring->buffer_ptr,
req_size,
0)) != req_size) {
if (errno == EINTR) {
/* we hit the end of a */
/* timed test. */
timed_out = 1;
break;
}
perror("send_stream_rr: data send error");
exit(1);
}
send_ring = send_ring->next;
/* receive the response */
rsp_bytes_left = rsp_size;
temp_message_ptr = recv_ring->buffer_ptr;
while(rsp_bytes_left > 0) {
if((rsp_bytes_recvd=recv(send_socket,
temp_message_ptr,
rsp_bytes_left,
0)) == SOCKET_ERROR) {
if (errno == EINTR) {
/* We hit the end of a timed test. */
timed_out = 1;
break;
}
perror("send_stream_rr: data recv error");
exit(1);
}
rsp_bytes_left -= rsp_bytes_recvd;
temp_message_ptr += rsp_bytes_recvd;
}
recv_ring = recv_ring->next;
if (timed_out) {
/* we may have been in a nested while loop - we need */
/* another call to break. */
break;
}
nummessages++;
if (trans_remaining) {
trans_remaining--;
}
if (debug > 3) {
fprintf(where,
"Transaction %d completed\n",
nummessages);
fflush(where);
}
}
/* At this point we used to call shutdown on the data socket to be */
/* sure all the data was delivered, but this was not germane in a */
/* request/response test, and it was causing the tests to "hang" when */
/* they were being controlled by time. So, I have replaced this */
/* shutdown call with a call to close that can be found later in the */
/* procedure. */
/* this call will always give us the elapsed time for the test, and */
/* will also store-away the necessaries for cpu utilization */
cpu_stop(local_cpu_usage,&elapsed_time); /* was cpu being measured? */
/* how long did we really run? */
/* Get the statistics from the remote end. The remote will have */
/* calculated service demand and all those interesting things. If it */
/* wasn't supposed to care, it will return obvious values. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote results obtained\n");
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: remote error");
exit(1);
}
/* We now calculate what our thruput was for the test. In the future, */
/* we may want to include a calculation of the thruput measured by */
/* the remote, but it should be the case that for a STREAM stream test, */
/* that the two numbers should be *very* close... We calculate */
/* bytes_sent regardless of the way the test length was controlled. */
/* If it was time, we needed to, and if it was by bytes, the user may */
/* have specified a number of bytes that wasn't a multiple of the */
/* send_size, so we really didn't send what he asked for ;-) We use */
/* Kbytes/s as the units of thruput for a STREAM stream test, where K = */
/* 1024. A future enhancement *might* be to choose from a couple of */
/* unit selections. */
bytes_xferd = (req_size * nummessages) + (rsp_size * nummessages);
thruput = calc_thruput(bytes_xferd);
if (local_cpu_usage || remote_cpu_usage) {
/* We must now do a little math for service demand and cpu */
/* utilization for the system(s) */
/* Of course, some of the information might be bogus because */
/* there was no idle counter in the kernel(s). We need to make */
/* a note of this for the user's benefit...*/
if (local_cpu_usage) {
if (local_cpu_rate == 0.0) {
fprintf(where,"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n");
fprintf(where,"Local CPU usage numbers based on process information only!\n");
fflush(where);
}
local_cpu_utilization = calc_cpu_util(0.0);
/* since calc_service demand is doing ms/Kunit we will */
/* multiply the number of transaction by 1024 to get */
/* "good" numbers */
local_service_demand = calc_service_demand((double) nummessages*1024,
0.0,
0.0,
0);
}
else {
local_cpu_utilization = -1.0;
local_service_demand = -1.0;
}
if (remote_cpu_usage) {
if (remote_cpu_rate == 0.0) {
fprintf(where,"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n");
fprintf(where,"Remote CPU usage numbers based on process information only!\n");
fflush(where);
}
remote_cpu_utilization = stream_rr_result->cpu_util;
/* since calc_service demand is doing ms/Kunit we will */
/* multiply the number of transaction by 1024 to get */
/* "good" numbers */
remote_service_demand = calc_service_demand((double) nummessages*1024,
0.0,
remote_cpu_utilization,
stream_rr_result->num_cpus);
}
else {
remote_cpu_utilization = -1.0;
remote_service_demand = -1.0;
}
/* We are now ready to print all the information. If the user */
/* has specified zero-level verbosity, we will just print the */
/* local service demand, or the remote service demand. If the */
/* user has requested verbosity level 1, he will get the basic */
/* "streamperf" numbers. If the user has specified a verbosity */
/* of greater than 1, we will display a veritable plethora of */
/* background information from outside of this block as it it */
/* not cpu_measurement specific... */
switch (verbosity) {
case 0:
if (local_cpu_usage) {
fprintf(where,
cpu_fmt_0,
local_service_demand);
}
else {
fprintf(where,
cpu_fmt_0,
remote_service_demand);
}
break;
case 1:
fprintf(where,
cpu_fmt_1_line_1, /* the format string */
lss_size, /* local sendbuf size */
lsr_size,
req_size, /* how large were the requests */
rsp_size, /* guess */
elapsed_time, /* how long was the test */
nummessages/elapsed_time,
local_cpu_utilization, /* local cpu */
remote_cpu_utilization, /* remote cpu */
local_service_demand, /* local service demand */
remote_service_demand); /* remote service demand */
fprintf(where,
cpu_fmt_1_line_2,
rss_size,
rsr_size);
break;
}
}
else {
/* The tester did not wish to measure service demand. */
switch (verbosity) {
case 0:
fprintf(where,
tput_fmt_0,
nummessages/elapsed_time);
break;
case 1:
fprintf(where,
tput_fmt_1_line_1, /* the format string */
lss_size,
lsr_size,
req_size, /* how large were the requests */
rsp_size, /* how large were the responses */
elapsed_time, /* how long did it take */
nummessages/elapsed_time);
fprintf(where,
tput_fmt_1_line_2,
rss_size, /* remote recvbuf size */
rsr_size);
break;
}
}
/* it would be a good thing to include information about some of the */
/* other parameters that may have been set for this test, but at the */
/* moment, I do not wish to figure-out all the formatting, so I will */
/* just put this comment here to help remind me that it is something */
/* that should be done at a later time. */
if (verbosity > 1) {
/* The user wanted to know it all, so we will give it to him. */
/* This information will include as much as we can find about */
/* STREAM statistics, the alignments of the sends and receives */
/* and all that sort of rot... */
fprintf(where,
ksink_fmt);
}
/* The test is over. Kill the data socket */
if (close(send_socket) == -1) {
perror("send_stream_rr: cannot shutdown stream stream socket");
}
}
void
send_dg_stream(char remote_host[])
{
/************************************************************************/
/* */
/* DG Unidirectional Send Test */
/* */
/************************************************************************/
char *tput_title =
"Socket Message Elapsed Messages \n\
Size Size Time Okay Errors Throughput\n\
bytes bytes secs # # %s/sec\n\n";
char *tput_fmt_0 =
"%7.2f\n";
char *tput_fmt_1 =
"%5d %5d %-7.2f %7d %6d %7.2f\n\
%5d %-7.2f %7d %7.2f\n\n";
char *cpu_title =
"Socket Message Elapsed Messages CPU Service\n\
Size Size Time Okay Errors Throughput Util Demand\n\
bytes bytes secs # # %s/sec %% us/KB\n\n";
char *cpu_fmt_0 =
"%6.2f\n";
char *cpu_fmt_1 =
"%5d %5d %-7.2f %7d %6d %7.1f %-6.2f %-6.3f\n\
%5d %-7.2f %7d %7.1f %-6.2f %-6.3f\n\n";
int messages_recvd;
float elapsed_time,
local_cpu_utilization,
remote_cpu_utilization;
float local_service_demand, remote_service_demand;
double local_thruput, remote_thruput;
double bytes_sent;
double bytes_recvd;
int len;
struct ring_elt *send_ring;
int failed_sends;
int failed_cows;
int messages_sent;
SOCKET data_socket;
#ifdef WANT_INTERVALS
int interval_count;
#endif /* WANT_INTERVALS */
#ifdef DIRTY
int *message_int_ptr;
int i;
#endif /* DIRTY */
struct sockaddr_un server;
struct dg_stream_request_struct *dg_stream_request;
struct dg_stream_response_struct *dg_stream_response;
struct dg_stream_results_struct *dg_stream_results;
dg_stream_request = (struct dg_stream_request_struct *)netperf_request.content.test_specific_data;
dg_stream_response = (struct dg_stream_response_struct *)netperf_response.content.test_specific_data;
dg_stream_results = (struct dg_stream_results_struct *)netperf_response.content.test_specific_data;
/* since we are now disconnected from the code that established the */
/* control socket, and since we want to be able to use different */
/* protocols and such, we are passed the name of the remote host and */
/* must turn that into the test specific addressing information. */
bzero((char *)&server,
sizeof(server));
server.sun_family = AF_UNIX;
if ( print_headers ) {
printf("DG UNIDIRECTIONAL SEND TEST\n");
if (local_cpu_usage || remote_cpu_usage)
printf(cpu_title,format_units());
else
printf(tput_title,format_units());
}
failed_sends = 0;
failed_cows = 0;
messages_sent = 0;
times_up = 0;
/*set up the data socket */
data_socket = create_unix_socket(AF_UNIX,
SOCK_DGRAM);
if (data_socket == INVALID_SOCKET){
perror("dg_send: data socket");
exit(1);
}
/* now, we want to see if we need to set the send_size */
if (send_size == 0) {
if (lss_size > 0) {
send_size = (lss_size < UNIX_LENGTH_MAX ? lss_size : UNIX_LENGTH_MAX);
}
else {
send_size = 4096;
}
}
/* set-up the data buffer with the requested alignment and offset, */
/* most of the numbers here are just a hack to pick something nice */
/* and big in an attempt to never try to send a buffer a second time */
/* before it leaves the node...unless the user set the width */
/* explicitly. */
if (send_width == 0) send_width = 32;
send_ring = allocate_buffer_ring(send_width,
send_size,
local_send_align,
local_send_offset);
/* At this point, we want to do things like disable DG checksumming */
/* and measure the cpu rate and all that so we are ready to go */
/* immediately after the test response message is delivered. */
/* if the user supplied a cpu rate, this call will complete rather */
/* quickly, otherwise, the cpu rate will be retured to us for */
/* possible display. The Library will keep it's own copy of this data */
/* for use elsewhere. We will only display it. (Does that make it */
/* "opaque" to us?) */
if (local_cpu_usage)
local_cpu_rate = calibrate_local_cpu(local_cpu_rate);
/* Tell the remote end to set up the data connection. The server */
/* sends back the port number and alters the socket parameters there. */
/* Of course this is a datagram service so no connection is actually */
/* set up, the server just sets up the socket and binds it. */
netperf_request.content.request_type = DO_DG_STREAM;
dg_stream_request->recv_buf_size = rsr_size;
dg_stream_request->message_size = send_size;
dg_stream_request->recv_alignment = remote_recv_align;
dg_stream_request->recv_offset = remote_recv_offset;
dg_stream_request->measure_cpu = remote_cpu_usage;
dg_stream_request->cpu_rate = remote_cpu_rate;
dg_stream_request->test_length = test_time;
send_request();
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"send_dg_stream: remote data connection done.\n");
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("send_dg_stream: error on remote");
exit(1);
}
/* Place the port number returned by the remote into the sockaddr */
/* structure so our sends can be sent to the correct place. Also get */
/* some of the returned socket buffer information for user display. */
/* make sure that port numbers are in the proper order */
strcpy(server.sun_path,dg_stream_response->unix_path);
rsr_size = dg_stream_response->recv_buf_size;
rss_size = dg_stream_response->send_buf_size;
remote_cpu_rate = dg_stream_response->cpu_rate;
/* We "connect" up to the remote post to allow is to use the send */
/* call instead of the sendto call. Presumeably, this is a little */
/* simpler, and a little more efficient. I think that it also means */
/* that we can be informed of certain things, but am not sure yet... */
if (connect(data_socket,
(struct sockaddr *)&server,
sizeof(server)) == INVALID_SOCKET){
perror("send_dg_stream: data socket connect failed");
exit(1);
}
/* set up the timer to call us after test_time */
start_timer(test_time);
/* Get the start count for the idle counter and the start time */
cpu_start(local_cpu_usage);
#ifdef WANT_INTERVALS
interval_count = interval_burst;
#endif
/* Send datagrams like there was no tomorrow. at somepoint it might */
/* be nice to set this up so that a quantity of bytes could be sent, */
/* but we still need some sort of end of test trigger on the receive */
/* side. that could be a select with a one second timeout, but then */
/* if there is a test where none of the data arrives for awile and */
/* then starts again, we would end the test too soon. something to */
/* think about... */
while (!times_up) {
#ifdef DIRTY
/* we want to dirty some number of consecutive integers in the buffer */
/* we are about to send. we may also want to bring some number of */
/* them cleanly into the cache. The clean ones will follow any dirty */
/* ones into the cache. */
message_int_ptr = (int *)(send_ring->buffer_ptr);
for (i = 0; i < loc_dirty_count; i++) {
*message_int_ptr = 4;
message_int_ptr++;
}
for (i = 0; i < loc_clean_count; i++) {
loc_dirty_count = *message_int_ptr;
message_int_ptr++;
}
#endif /* DIRTY */
if ((len=send(data_socket,
send_ring->buffer_ptr,
send_size,
0)) != send_size) {
if ((len >= 0) || (errno == EINTR))
break;
if (errno == ENOBUFS) {
failed_sends++;
continue;
}
perror("dg_send: data send error");
exit(1);
}
messages_sent++;
/* now we want to move our pointer to the next position in the */
/* data buffer... */
send_ring = send_ring->next;
#ifdef WANT_INTERVALS
/* in this case, the interval count is the count-down couter */
/* to decide to sleep for a little bit */
if ((interval_burst) && (--interval_count == 0)) {
/* call the sleep routine for some milliseconds, if our */
/* timer popped while we were in there, we want to */
/* break out of the loop. */
if (msec_sleep(interval_wate)) {
break;
}
interval_count = interval_burst;
}
#endif
}
/* This is a timed test, so the remote will be returning to us after */
/* a time. We should not need to send any "strange" messages to tell */
/* the remote that the test is completed, unless we decide to add a */
/* number of messages to the test. */
/* the test is over, so get stats and stuff */
cpu_stop(local_cpu_usage,
&elapsed_time);
/* Get the statistics from the remote end */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"send_dg_stream: remote results obtained\n");
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("send_dg_stream: error on remote");
exit(1);
}
bytes_sent = send_size * messages_sent;
local_thruput = calc_thruput(bytes_sent);
messages_recvd = dg_stream_results->messages_recvd;
bytes_recvd = send_size * messages_recvd;
/* we asume that the remote ran for as long as we did */
remote_thruput = calc_thruput(bytes_recvd);
/* print the results for this socket and message size */
if (local_cpu_usage || remote_cpu_usage) {
/* We must now do a little math for service demand and cpu */
/* utilization for the system(s) We pass zeros for the local */
/* cpu utilization and elapsed time to tell the routine to use */
/* the libraries own values for those. */
if (local_cpu_usage) {
if (local_cpu_rate == 0.0) {
fprintf(where,"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n");
fprintf(where,"Local CPU usage numbers based on process information only!\n");
fflush(where);
}
local_cpu_utilization = calc_cpu_util(0.0);
local_service_demand = calc_service_demand(bytes_sent,
0.0,
0.0,
0);
}
else {
local_cpu_utilization = -1.0;
local_service_demand = -1.0;
}
/* The local calculations could use variables being kept by */
/* the local netlib routines. The remote calcuations need to */
/* have a few things passed to them. */
if (remote_cpu_usage) {
if (remote_cpu_rate == 0.0) {
fprintf(where,"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n");
fprintf(where,"REMOTE CPU usage numbers based on process information only!\n");
fflush(where);
}
remote_cpu_utilization = dg_stream_results->cpu_util;
remote_service_demand = calc_service_demand(bytes_recvd,
0.0,
remote_cpu_utilization,
dg_stream_results->num_cpus);
}
else {
remote_cpu_utilization = -1.0;
remote_service_demand = -1.0;
}
/* We are now ready to print all the information. If the user */
/* has specified zero-level verbosity, we will just print the */
/* local service demand, or the remote service demand. If the */
/* user has requested verbosity level 1, he will get the basic */
/* "streamperf" numbers. If the user has specified a verbosity */
/* of greater than 1, we will display a veritable plethora of */
/* background information from outside of this block as it it */
/* not cpu_measurement specific... */
switch (verbosity) {
case 0:
if (local_cpu_usage) {
fprintf(where,
cpu_fmt_0,
local_service_demand);
}
else {
fprintf(where,
cpu_fmt_0,
remote_service_demand);
}
break;
case 1:
fprintf(where,
cpu_fmt_1, /* the format string */
lss_size, /* local sendbuf size */
send_size, /* how large were the sends */
elapsed_time, /* how long was the test */
messages_sent,
failed_sends,
local_thruput, /* what was the xfer rate */
local_cpu_utilization, /* local cpu */
local_service_demand, /* local service demand */
rsr_size,
elapsed_time,
messages_recvd,
remote_thruput,
remote_cpu_utilization, /* remote cpu */
remote_service_demand); /* remote service demand */
break;
}
}
else {
/* The tester did not wish to measure service demand. */
switch (verbosity) {
case 0:
fprintf(where,
tput_fmt_0,
local_thruput);
break;
case 1:
fprintf(where,
tput_fmt_1, /* the format string */
lss_size, /* local sendbuf size */
send_size, /* how large were the sends */
elapsed_time, /* how long did it take */
messages_sent,
failed_sends,
local_thruput,
rsr_size, /* remote recvbuf size */
elapsed_time,
messages_recvd,
remote_thruput
);
break;
}
}
}
/* this routine implements the receive side (netserver) of the */
/* DG_STREAM performance test. */
void
recv_dg_stream()
{
struct ring_elt *recv_ring;
struct sockaddr_un myaddr_un;
SOCKET s_data;
int len = 0;
int bytes_received = 0;
float elapsed_time;
int message_size;
int messages_recvd = 0;
struct dg_stream_request_struct *dg_stream_request;
struct dg_stream_response_struct *dg_stream_response;
struct dg_stream_results_struct *dg_stream_results;
dg_stream_request =
(struct dg_stream_request_struct *)netperf_request.content.test_specific_data;
dg_stream_response =
(struct dg_stream_response_struct *)netperf_response.content.test_specific_data;
dg_stream_results =
(struct dg_stream_results_struct *)netperf_response.content.test_specific_data;
if (debug) {
fprintf(where,"netserver: recv_dg_stream: entered...\n");
fflush(where);
}
/* We want to set-up the listen socket with all the desired */
/* parameters and then let the initiator know that all is ready. If */
/* socket size defaults are to be used, then the initiator will have */
/* sent us 0's. If the socket sizes cannot be changed, then we will */
/* send-back what they are. If that information cannot be determined, */
/* then we send-back -1's for the sizes. If things go wrong for any */
/* reason, we will drop back ten yards and punt. */
/* If anything goes wrong, we want the remote to know about it. It */
/* would be best if the error that the remote reports to the user is */
/* the actual error we encountered, rather than some bogus unexpected */
/* response type message. */
if (debug > 1) {
fprintf(where,"recv_dg_stream: setting the response type...\n");
fflush(where);
}
netperf_response.content.response_type = DG_STREAM_RESPONSE;
if (debug > 2) {
fprintf(where,"recv_dg_stream: the response type is set...\n");
fflush(where);
}
/* We now alter the message_ptr variable to be at the desired */
/* alignment with the desired offset. */
if (debug > 1) {
fprintf(where,"recv_dg_stream: requested alignment of %d\n",
dg_stream_request->recv_alignment);
fflush(where);
}
if (recv_width == 0) recv_width = 1;
recv_ring = allocate_buffer_ring(recv_width,
dg_stream_request->message_size,
dg_stream_request->recv_alignment,
dg_stream_request->recv_offset);
if (debug > 1) {
fprintf(where,"recv_dg_stream: receive alignment and offset set...\n");
fflush(where);
}
/* Let's clear-out our sockaddr for the sake of cleanlines. Then we */
/* can put in OUR values !-) At some point, we may want to nail this */
/* socket to a particular network-level address, but for now, */
/* INADDR_ANY should be just fine. */
bzero((char *)&myaddr_un,
sizeof(myaddr_un));
myaddr_un.sun_family = AF_UNIX;
/* Grab a socket to listen on, and then listen on it. */
if (debug > 1) {
fprintf(where,"recv_dg_stream: grabbing a socket...\n");
fflush(where);
}
/* create_unix_socket expects to find some things in the global */
/* variables, so set the globals based on the values in the request. */
/* once the socket has been created, we will set the response values */
/* based on the updated value of those globals. raj 7/94 */
lsr_size = dg_stream_request->recv_buf_size;
s_data = create_unix_socket(AF_UNIX,
SOCK_DGRAM);
if (s_data == INVALID_SOCKET) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
/* Let's get an address assigned to this socket so we can tell the */
/* initiator how to reach the data socket. There may be a desire to */
/* nail this socket to a specific IP address in a multi-homed, */
/* multi-connection situation, but for now, we'll ignore the issue */
/* and concentrate on single connection testing. */
strcpy(myaddr_un.sun_path,tempnam(path_prefix,"netperf."));
if (bind(s_data,
(struct sockaddr *)&myaddr_un,
sizeof(myaddr_un)) == SOCKET_ERROR) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
chmod(myaddr_un.sun_path, 0666);
dg_stream_response->test_length = dg_stream_request->test_length;
/* Now myaddr_un contains the port and the internet address this is */
/* returned to the sender also implicitly telling the sender that the */
/* socket buffer sizing has been done. */
strcpy(dg_stream_response->unix_path,myaddr_un.sun_path);
netperf_response.content.serv_errno = 0;
/* But wait, there's more. If the initiator wanted cpu measurements, */
/* then we must call the calibrate routine, which will return the max */
/* rate back to the initiator. If the CPU was not to be measured, or */
/* something went wrong with the calibration, we will return a -1 to */
/* the initiator. */
dg_stream_response->cpu_rate = 0.0; /* assume no cpu */
if (dg_stream_request->measure_cpu) {
/* We will pass the rate into the calibration routine. If the */
/* user did not specify one, it will be 0.0, and we will do a */
/* "real" calibration. Otherwise, all it will really do is */
/* store it away... */
dg_stream_response->measure_cpu = 1;
dg_stream_response->cpu_rate =
calibrate_local_cpu(dg_stream_request->cpu_rate);
}
message_size = dg_stream_request->message_size;
test_time = dg_stream_request->test_length;
/* before we send the response back to the initiator, pull some of */
/* the socket parms from the globals */
dg_stream_response->send_buf_size = lss_size;
dg_stream_response->recv_buf_size = lsr_size;
send_response();
/* Now it's time to start receiving data on the connection. We will */
/* first grab the apropriate counters and then start grabbing. */
cpu_start(dg_stream_request->measure_cpu);
/* The loop will exit when the timer pops, or if we happen to recv a */
/* message of less than send_size bytes... */
times_up = 0;
start_timer(test_time + PAD_TIME);
if (debug) {
fprintf(where,"recv_dg_stream: about to enter inner sanctum.\n");
fflush(where);
}
while (!times_up) {
if ((len = recv(s_data,
recv_ring->buffer_ptr,
message_size,
0)) != message_size) {
if ((len == SOCKET_ERROR) && (errno != EINTR)) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
break;
}
messages_recvd++;
recv_ring = recv_ring->next;
}
if (debug) {
fprintf(where,"recv_dg_stream: got %d messages.\n",messages_recvd);
fflush(where);
}
/* The loop now exits due timer or < send_size bytes received. */
cpu_stop(dg_stream_request->measure_cpu,&elapsed_time);
if (times_up) {
/* we ended on a timer, subtract the PAD_TIME */
elapsed_time -= (float)PAD_TIME;
}
else {
stop_timer();
}
if (debug) {
fprintf(where,"recv_dg_stream: test ended in %f seconds.\n",elapsed_time);
fflush(where);
}
/* We will count the "off" message that got us out of the loop */
bytes_received = (messages_recvd * message_size) + len;
/* send the results to the sender */
if (debug) {
fprintf(where,
"recv_dg_stream: got %d bytes\n",
bytes_received);
fflush(where);
}
netperf_response.content.response_type = DG_STREAM_RESULTS;
dg_stream_results->bytes_received = bytes_received;
dg_stream_results->messages_recvd = messages_recvd;
dg_stream_results->elapsed_time = elapsed_time;
if (dg_stream_request->measure_cpu) {
dg_stream_results->cpu_util = calc_cpu_util(elapsed_time);
}
else {
dg_stream_results->cpu_util = -1.0;
}
if (debug > 1) {
fprintf(where,
"recv_dg_stream: test complete, sending results.\n");
fflush(where);
}
send_response();
}
void
send_dg_rr(char remote_host[])
{
char *tput_title = "\
Local /Remote\n\
Socket Size Request Resp. Elapsed Trans.\n\
Send Recv Size Size Time Rate \n\
bytes Bytes bytes bytes secs. per sec \n\n";
char *tput_fmt_0 =
"%7.2f\n";
char *tput_fmt_1_line_1 = "\
%-6d %-6d %-6d %-6d %-6.2f %7.2f \n";
char *tput_fmt_1_line_2 = "\
%-6d %-6d\n";
char *cpu_title = "\
Local /Remote\n\
Socket Size Request Resp. Elapsed Trans. CPU CPU S.dem S.dem\n\
Send Recv Size Size Time Rate local remote local remote\n\
bytes bytes bytes bytes secs. per sec %% %% us/Tr us/Tr\n\n";
char *cpu_fmt_0 =
"%6.3f\n";
char *cpu_fmt_1_line_1 = "\
%-6d %-6d %-6d %-6d %-6.2f %-6.2f %-6.2f %-6.2f %-6.3f %-6.3f\n";
char *cpu_fmt_1_line_2 = "\
%-6d %-6d\n";
float elapsed_time;
/* we add MAXALIGNMENT and MAXOFFSET to insure that there is enough */
/* space for a maximally aligned, maximally sized message. At some */
/* point, we may want to actually make this even larger and cycle */
/* through the thing one piece at a time.*/
int len;
char *send_message_ptr;
char *recv_message_ptr;
char *temp_message_ptr;
int nummessages;
SOCKET send_socket;
int trans_remaining;
int bytes_xferd;
int rsp_bytes_recvd;
float local_cpu_utilization;
float local_service_demand;
float remote_cpu_utilization;
float remote_service_demand;
double thruput;
#ifdef WANT_INTERVALS
/* timing stuff */
#define MAX_KEPT_TIMES 1024
int time_index = 0;
int unused_buckets;
int kept_times[MAX_KEPT_TIMES];
int sleep_usecs;
unsigned int total_times=0;
struct timezone dummy_zone;
struct timeval send_time;
struct timeval recv_time;
struct timeval sleep_timeval;
#endif
struct sockaddr_un server, myaddr_un;
struct dg_rr_request_struct *dg_rr_request;
struct dg_rr_response_struct *dg_rr_response;
struct dg_rr_results_struct *dg_rr_result;
dg_rr_request =
(struct dg_rr_request_struct *)netperf_request.content.test_specific_data;
dg_rr_response=
(struct dg_rr_response_struct *)netperf_response.content.test_specific_data;
dg_rr_result =
(struct dg_rr_results_struct *)netperf_response.content.test_specific_data;
/* we want to zero out the times, so we can detect unused entries. */
#ifdef WANT_INTERVALS
time_index = 0;
while (time_index < MAX_KEPT_TIMES) {
kept_times[time_index] = 0;
time_index += 1;
}
time_index = 0;
#endif
/* since we are now disconnected from the code that established the */
/* control socket, and since we want to be able to use different */
/* protocols and such, we are passed the name of the remote host and */
/* must turn that into the test specific addressing information. */
bzero((char *)&server,
sizeof(server));
server.sun_family = AF_UNIX;
bzero((char *)&myaddr_un,
sizeof(myaddr_un));
myaddr_un.sun_family = AF_UNIX;
strcpy(myaddr_un.sun_path,tempnam(path_prefix,"netperf."));
if ( print_headers ) {
fprintf(where,"DG REQUEST/RESPONSE TEST\n");
if (local_cpu_usage || remote_cpu_usage)
fprintf(where,cpu_title,format_units());
else
fprintf(where,tput_title,format_units());
}
/* initialize a few counters */
nummessages = 0;
bytes_xferd = 0;
times_up = 0;
/* set-up the data buffer with the requested alignment and offset */
temp_message_ptr = (char *)malloc(DATABUFFERLEN);
if (temp_message_ptr == NULL) {
printf("malloc(%d) failed!\n", DATABUFFERLEN);
exit(1);
}
send_message_ptr = (char *)(( (long)temp_message_ptr +
(long) local_send_align - 1) &
~((long) local_send_align - 1));
send_message_ptr = send_message_ptr + local_send_offset;
temp_message_ptr = (char *)malloc(DATABUFFERLEN);
if (temp_message_ptr == NULL) {
printf("malloc(%d) failed!\n", DATABUFFERLEN);
exit(1);
}
recv_message_ptr = (char *)(( (long)temp_message_ptr +
(long) local_recv_align - 1) &
~((long) local_recv_align - 1));
recv_message_ptr = recv_message_ptr + local_recv_offset;
/*set up the data socket */
send_socket = create_unix_socket(AF_UNIX,
SOCK_DGRAM);
if (send_socket == INVALID_SOCKET){
perror("netperf: send_dg_rr: dg rr data socket");
exit(1);
}
if (debug) {
fprintf(where,"send_dg_rr: send_socket obtained...\n");
}
/* If the user has requested cpu utilization measurements, we must */
/* calibrate the cpu(s). We will perform this task within the tests */
/* themselves. If the user has specified the cpu rate, then */
/* calibrate_local_cpu will return rather quickly as it will have */
/* nothing to do. If local_cpu_rate is zero, then we will go through */
/* all the "normal" calibration stuff and return the rate back. If */
/* there is no idle counter in the kernel idle loop, the */
/* local_cpu_rate will be set to -1. */
if (local_cpu_usage) {
local_cpu_rate = calibrate_local_cpu(local_cpu_rate);
}
/* Tell the remote end to do a listen. The server alters the socket */
/* paramters on the other side at this point, hence the reason for */
/* all the values being passed in the setup message. If the user did */
/* not specify any of the parameters, they will be passed as 0, which */
/* will indicate to the remote that no changes beyond the system's */
/* default should be used. Alignment is the exception, it will */
/* default to 8, which will be no alignment alterations. */
netperf_request.content.request_type = DO_DG_RR;
dg_rr_request->recv_buf_size = rsr_size;
dg_rr_request->send_buf_size = rss_size;
dg_rr_request->recv_alignment = remote_recv_align;
dg_rr_request->recv_offset = remote_recv_offset;
dg_rr_request->send_alignment = remote_send_align;
dg_rr_request->send_offset = remote_send_offset;
dg_rr_request->request_size = req_size;
dg_rr_request->response_size = rsp_size;
dg_rr_request->measure_cpu = remote_cpu_usage;
dg_rr_request->cpu_rate = remote_cpu_rate;
if (test_time) {
dg_rr_request->test_length = test_time;
}
else {
dg_rr_request->test_length = test_trans * -1;
}
if (debug > 1) {
fprintf(where,"netperf: send_dg_rr: requesting DG request/response test\n");
}
send_request();
/* The response from the remote will contain all of the relevant */
/* socket parameters for this test type. We will put them back into */
/* the variables here so they can be displayed if desired. The */
/* remote will have calibrated CPU if necessary, and will have done */
/* all the needed set-up we will have calibrated the cpu locally */
/* before sending the request, and will grab the counter value right */
/* after the connect returns. The remote will grab the counter right */
/* after the accept call. This saves the hassle of extra messages */
/* being sent for the DG tests. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote listen done.\n");
rsr_size = dg_rr_response->recv_buf_size;
rss_size = dg_rr_response->send_buf_size;
remote_cpu_usage= dg_rr_response->measure_cpu;
remote_cpu_rate = dg_rr_response->cpu_rate;
/* port numbers in proper order */
strcpy(server.sun_path,dg_rr_response->unix_path);
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: remote error");
exit(1);
}
/* Connect up to the remote port on the data socket. This will set */
/* the default destination address on this socket. we need to bind */
/* out socket so that the remote gets something from a recvfrom */
if (bind(send_socket,
(struct sockaddr *)&myaddr_un,
sizeof(myaddr_un)) == SOCKET_ERROR) {
perror("netperf: send_dg_rr");
unlink(myaddr_un.sun_path);
close(send_socket);
exit(1);
}
if (connect(send_socket,
(struct sockaddr *)&server,
sizeof(server)) == INVALID_SOCKET ) {
perror("netperf: data socket connect failed");
exit(1);
}
/* Data Socket set-up is finished. If there were problems, either the */
/* connect would have failed, or the previous response would have */
/* indicated a problem. I failed to see the value of the extra */
/* message after the accept on the remote. If it failed, we'll see it */
/* here. If it didn't, we might as well start pumping data. */
/* Set-up the test end conditions. For a request/response test, they */
/* can be either time or transaction based. */
if (test_time) {
/* The user wanted to end the test after a period of time. */
times_up = 0;
trans_remaining = 0;
start_timer(test_time);
}
else {
/* The tester wanted to send a number of bytes. */
trans_remaining = test_bytes;
times_up = 1;
}
/* The cpu_start routine will grab the current time and possibly */
/* value of the idle counter for later use in measuring cpu */
/* utilization and/or service demand and thruput. */
cpu_start(local_cpu_usage);
/* We use an "OR" to control test execution. When the test is */
/* controlled by time, the byte count check will always return false. */
/* When the test is controlled by byte count, the time test will */
/* always return false. When the test is finished, the whole */
/* expression will go false and we will stop sending data. I think I */
/* just arbitrarily decrement trans_remaining for the timed test, but */
/* will not do that just yet... One other question is whether or not */
/* the send buffer and the receive buffer should be the same buffer. */
while ((!times_up) || (trans_remaining > 0)) {
/* send the request */
#ifdef WANT_INTERVALS
gettimeofday(&send_time,&dummy_zone);
#endif
if((len=send(send_socket,
send_message_ptr,
req_size,
0)) != req_size) {
if (errno == EINTR) {
/* We likely hit */
/* test-end time. */
break;
}
perror("send_dg_rr: data send error");
exit(1);
}
/* receive the response. with DG we will get it all, or nothing */
if((rsp_bytes_recvd=recv(send_socket,
recv_message_ptr,
rsp_size,
0)) != rsp_size) {
if (errno == EINTR) {
/* Again, we have likely hit test-end time */
break;
}
perror("send_dg_rr: data recv error");
exit(1);
}
#ifdef WANT_INTERVALS
gettimeofday(&recv_time,&dummy_zone);
/* now we do some arithmatic on the two timevals */
if (recv_time.tv_usec < send_time.tv_usec) {
/* we wrapped around a second */
recv_time.tv_usec += 1000000;
recv_time.tv_sec -= 1;
}
/* and store it away */
kept_times[time_index] = (recv_time.tv_sec - send_time.tv_sec) * 1000000;
kept_times[time_index] += (recv_time.tv_usec - send_time.tv_usec);
/* at this point, we may wish to sleep for some period of */
/* time, so we see how long that last transaction just took, */
/* and sleep for the difference of that and the interval. We */
/* will not sleep if the time would be less than a */
/* millisecond. */
if (interval_usecs > 0) {
sleep_usecs = interval_usecs - kept_times[time_index];
if (sleep_usecs > 1000) {
/* we sleep */
sleep_timeval.tv_sec = sleep_usecs / 1000000;
sleep_timeval.tv_usec = sleep_usecs % 1000000;
select(0,
0,
0,
0,
&sleep_timeval);
}
}
/* now up the time index */
time_index = (time_index +1)%MAX_KEPT_TIMES;
#endif
nummessages++;
if (trans_remaining) {
trans_remaining--;
}
if (debug > 3) {
fprintf(where,"Transaction %d completed\n",nummessages);
fflush(where);
}
}
/* The test is over. Flush the buffers to the remote end. We do a */
/* graceful release to insure that all data has been taken by the */
/* remote. Of course, since this was a request/response test, there */
/* should be no data outstanding on the socket ;-) */
if (shutdown(send_socket,1) == SOCKET_ERROR) {
perror("netperf: cannot shutdown dg stream socket");
exit(1);
}
/* this call will always give us the elapsed time for the test, and */
/* will also store-away the necessaries for cpu utilization */
cpu_stop(local_cpu_usage,&elapsed_time); /* was cpu being measured? */
/* how long did we really run? */
/* Get the statistics from the remote end. The remote will have */
/* calculated service demand and all those interesting things. If it */
/* wasn't supposed to care, it will return obvious values. */
recv_response();
if (!netperf_response.content.serv_errno) {
if (debug)
fprintf(where,"remote results obtained\n");
}
else {
Set_errno(netperf_response.content.serv_errno);
perror("netperf: remote error");
exit(1);
}
/* We now calculate what our thruput was for the test. In the future, */
/* we may want to include a calculation of the thruput measured by */
/* the remote, but it should be the case that for a DG stream test, */
/* that the two numbers should be *very* close... We calculate */
/* bytes_sent regardless of the way the test length was controlled. */
/* If it was time, we needed to, and if it was by bytes, the user may */
/* have specified a number of bytes that wasn't a multiple of the */
/* send_size, so we really didn't send what he asked for ;-) We use */
bytes_xferd = (req_size * nummessages) + (rsp_size * nummessages);
thruput = calc_thruput(bytes_xferd);
if (local_cpu_usage || remote_cpu_usage) {
/* We must now do a little math for service demand and cpu */
/* utilization for the system(s) */
/* Of course, some of the information might be bogus because */
/* there was no idle counter in the kernel(s). We need to make */
/* a note of this for the user's benefit...*/
if (local_cpu_usage) {
if (local_cpu_rate == 0.0) {
fprintf(where,"WARNING WARNING WARNING WARNING WARNING WARNING WARNING!\n");
fprintf(where,"Local CPU usage numbers based on process information only!\n");
fflush(where);
}
local_cpu_utilization = calc_cpu_util(0.0);
/* since calc_service demand is doing ms/Kunit we will */
/* multiply the number of transaction by 1024 to get */
/* "good" numbers */
local_service_demand = calc_service_demand((double) nummessages*1024,
0.0,
0.0,
0);
}
else {
local_cpu_utilization = -1.0;
local_service_demand = -1.0;
}
if (remote_cpu_usage) {
if (remote_cpu_rate == 0.0) {
fprintf(where,"DANGER DANGER DANGER DANGER DANGER DANGER DANGER!\n");
fprintf(where,"Remote CPU usage numbers based on process information only!\n");
fflush(where);
}
remote_cpu_utilization = dg_rr_result->cpu_util;
/* since calc_service demand is doing ms/Kunit we will */
/* multiply the number of transaction by 1024 to get */
/* "good" numbers */
remote_service_demand = calc_service_demand((double) nummessages*1024,
0.0,
remote_cpu_utilization,
dg_rr_result->num_cpus);
}
else {
remote_cpu_utilization = -1.0;
remote_service_demand = -1.0;
}
/* We are now ready to print all the information. If the user */
/* has specified zero-level verbosity, we will just print the */
/* local service demand, or the remote service demand. If the */
/* user has requested verbosity level 1, he will get the basic */
/* "streamperf" numbers. If the user has specified a verbosity */
/* of greater than 1, we will display a veritable plethora of */
/* background information from outside of this block as it it */
/* not cpu_measurement specific... */
switch (verbosity) {
case 0:
if (local_cpu_usage) {
fprintf(where,
cpu_fmt_0,
local_service_demand);
}
else {
fprintf(where,
cpu_fmt_0,
remote_service_demand);
}
break;
case 1:
case 2:
fprintf(where,
cpu_fmt_1_line_1, /* the format string */
lss_size, /* local sendbuf size */
lsr_size,
req_size, /* how large were the requests */
rsp_size, /* guess */
elapsed_time, /* how long was the test */
nummessages/elapsed_time,
local_cpu_utilization, /* local cpu */
remote_cpu_utilization, /* remote cpu */
local_service_demand, /* local service demand */
remote_service_demand); /* remote service demand */
fprintf(where,
cpu_fmt_1_line_2,
rss_size,
rsr_size);
break;
}
}
else {
/* The tester did not wish to measure service demand. */
switch (verbosity) {
case 0:
fprintf(where,
tput_fmt_0,
nummessages/elapsed_time);
break;
case 1:
case 2:
fprintf(where,
tput_fmt_1_line_1, /* the format string */
lss_size,
lsr_size,
req_size, /* how large were the requests */
rsp_size, /* how large were the responses */
elapsed_time, /* how long did it take */
nummessages/elapsed_time);
fprintf(where,
tput_fmt_1_line_2,
rss_size, /* remote recvbuf size */
rsr_size);
break;
}
}
/* it would be a good thing to include information about some of the */
/* other parameters that may have been set for this test, but at the */
/* moment, I do not wish to figure-out all the formatting, so I will */
/* just put this comment here to help remind me that it is something */
/* that should be done at a later time. */
if (verbosity > 1) {
/* The user wanted to know it all, so we will give it to him. */
/* This information will include as much as we can find about */
/* DG statistics, the alignments of the sends and receives */
/* and all that sort of rot... */
#ifdef WANT_INTERVALS
kept_times[MAX_KEPT_TIMES] = 0;
time_index = 0;
while (time_index < MAX_KEPT_TIMES) {
if (kept_times[time_index] > 0) {
total_times += kept_times[time_index];
}
else
unused_buckets++;
time_index += 1;
}
total_times /= (MAX_KEPT_TIMES-unused_buckets);
fprintf(where,
"Average response time %d usecs\n",
total_times);
#endif
}
unlink(myaddr_un.sun_path);
}
/* this routine implements the receive side (netserver) of a DG_RR */
/* test. */
void
recv_dg_rr()
{
struct ring_elt *recv_ring;
struct ring_elt *send_ring;
struct sockaddr_un myaddr_un,
peeraddr_un;
SOCKET s_data;
int addrlen;
int trans_received = 0;
int trans_remaining;
float elapsed_time;
struct dg_rr_request_struct *dg_rr_request;
struct dg_rr_response_struct *dg_rr_response;
struct dg_rr_results_struct *dg_rr_results;
dg_rr_request =
(struct dg_rr_request_struct *)netperf_request.content.test_specific_data;
dg_rr_response =
(struct dg_rr_response_struct *)netperf_response.content.test_specific_data;
dg_rr_results =
(struct dg_rr_results_struct *)netperf_response.content.test_specific_data;
if (debug) {
fprintf(where,"netserver: recv_dg_rr: entered...\n");
fflush(where);
}
/* We want to set-up the listen socket with all the desired */
/* parameters and then let the initiator know that all is ready. If */
/* socket size defaults are to be used, then the initiator will have */
/* sent us 0's. If the socket sizes cannot be changed, then we will */
/* send-back what they are. If that information cannot be determined, */
/* then we send-back -1's for the sizes. If things go wrong for any */
/* reason, we will drop back ten yards and punt. */
/* If anything goes wrong, we want the remote to know about it. It */
/* would be best if the error that the remote reports to the user is */
/* the actual error we encountered, rather than some bogus unexpected */
/* response type message. */
if (debug) {
fprintf(where,"recv_dg_rr: setting the response type...\n");
fflush(where);
}
netperf_response.content.response_type = DG_RR_RESPONSE;
if (debug) {
fprintf(where,"recv_dg_rr: the response type is set...\n");
fflush(where);
}
/* We now alter the message_ptr variables to be at the desired */
/* alignments with the desired offsets. */
if (debug) {
fprintf(where,"recv_dg_rr: requested recv alignment of %d offset %d\n",
dg_rr_request->recv_alignment,
dg_rr_request->recv_offset);
fprintf(where,"recv_dg_rr: requested send alignment of %d offset %d\n",
dg_rr_request->send_alignment,
dg_rr_request->send_offset);
fflush(where);
}
if (send_width == 0) send_width = 1;
if (recv_width == 0) recv_width = 1;
recv_ring = allocate_buffer_ring(recv_width,
dg_rr_request->request_size,
dg_rr_request->recv_alignment,
dg_rr_request->recv_offset);
send_ring = allocate_buffer_ring(send_width,
dg_rr_request->response_size,
dg_rr_request->send_alignment,
dg_rr_request->send_offset);
if (debug) {
fprintf(where,"recv_dg_rr: receive alignment and offset set...\n");
fflush(where);
}
/* Let's clear-out our sockaddr for the sake of cleanlines. Then we */
/* can put in OUR values !-) At some point, we may want to nail this */
/* socket to a particular network-level address, but for now, */
/* INADDR_ANY should be just fine. */
bzero((char *)&myaddr_un,
sizeof(myaddr_un));
myaddr_un.sun_family = AF_UNIX;
/* Grab a socket to listen on, and then listen on it. */
if (debug) {
fprintf(where,"recv_dg_rr: grabbing a socket...\n");
fflush(where);
}
/* create_unix_socket expects to find some things in the global */
/* variables, so set the globals based on the values in the request. */
/* once the socket has been created, we will set the response values */
/* based on the updated value of those globals. raj 7/94 */
lss_size_req = dg_rr_request->send_buf_size;
lsr_size_req = dg_rr_request->recv_buf_size;
s_data = create_unix_socket(AF_UNIX,
SOCK_DGRAM);
if (s_data == INVALID_SOCKET) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
/* Let's get an address assigned to this socket so we can tell the */
/* initiator how to reach the data socket. There may be a desire to */
/* nail this socket to a specific IP address in a multi-homed, */
/* multi-connection situation, but for now, we'll ignore the issue */
/* and concentrate on single connection testing. */
strcpy(myaddr_un.sun_path,tempnam(path_prefix,"netperf."));
if (bind(s_data,
(struct sockaddr *)&myaddr_un,
sizeof(myaddr_un)) == SOCKET_ERROR) {
netperf_response.content.serv_errno = errno;
unlink(myaddr_un.sun_path);
close(s_data);
send_response();
exit(1);
}
/* Now myaddr_un contains the port and the internet address this is */
/* returned to the sender also implicitly telling the sender that the */
/* socket buffer sizing has been done. */
strcpy(dg_rr_response->unix_path,myaddr_un.sun_path);
netperf_response.content.serv_errno = 0;
/* But wait, there's more. If the initiator wanted cpu measurements, */
/* then we must call the calibrate routine, which will return the max */
/* rate back to the initiator. If the CPU was not to be measured, or */
/* something went wrong with the calibration, we will return a 0.0 to */
/* the initiator. */
dg_rr_response->cpu_rate = 0.0; /* assume no cpu */
if (dg_rr_request->measure_cpu) {
dg_rr_response->measure_cpu = 1;
dg_rr_response->cpu_rate = calibrate_local_cpu(dg_rr_request->cpu_rate);
}
/* before we send the response back to the initiator, pull some of */
/* the socket parms from the globals */
dg_rr_response->send_buf_size = lss_size;
dg_rr_response->recv_buf_size = lsr_size;
send_response();
/* Now it's time to start receiving data on the connection. We will */
/* first grab the apropriate counters and then start grabbing. */
cpu_start(dg_rr_request->measure_cpu);
if (dg_rr_request->test_length > 0) {
times_up = 0;
trans_remaining = 0;
start_timer(dg_rr_request->test_length + PAD_TIME);
}
else {
times_up = 1;
trans_remaining = dg_rr_request->test_length * -1;
}
addrlen = sizeof(peeraddr_un);
bzero((char *)&peeraddr_un, addrlen);
while ((!times_up) || (trans_remaining > 0)) {
/* receive the request from the other side */
fprintf(where,"socket %d ptr %p size %d\n",
s_data,
recv_ring->buffer_ptr,
dg_rr_request->request_size);
fflush(where);
if (recvfrom(s_data,
recv_ring->buffer_ptr,
dg_rr_request->request_size,
0,
(struct sockaddr *)&peeraddr_un,
&addrlen) != dg_rr_request->request_size) {
if (errno == EINTR) {
/* we must have hit the end of test time. */
break;
}
netperf_response.content.serv_errno = errno;
fprintf(where,"error on recvfrom errno %d\n",errno);
fflush(where);
send_response();
unlink(myaddr_un.sun_path);
exit(1);
}
recv_ring = recv_ring->next;
/* Now, send the response to the remote */
if (sendto(s_data,
send_ring->buffer_ptr,
dg_rr_request->response_size,
0,
(struct sockaddr *)&peeraddr_un,
addrlen) != dg_rr_request->response_size) {
if (errno == EINTR) {
/* we have hit end of test time. */
break;
}
netperf_response.content.serv_errno = errno;
fprintf(where,"error on recvfrom errno %d\n",errno);
fflush(where);
unlink(myaddr_un.sun_path);
send_response();
exit(1);
}
send_ring = send_ring->next;
trans_received++;
if (trans_remaining) {
trans_remaining--;
}
if (debug) {
fprintf(where,
"recv_dg_rr: Transaction %d complete.\n",
trans_received);
fflush(where);
}
}
/* The loop now exits due to timeout or transaction count being */
/* reached */
cpu_stop(dg_rr_request->measure_cpu,&elapsed_time);
if (times_up) {
/* we ended the test by time, which was at least 2 seconds */
/* longer than we wanted to run. so, we want to subtract */
/* PAD_TIME from the elapsed_time. */
elapsed_time -= PAD_TIME;
}
/* send the results to the sender */
if (debug) {
fprintf(where,
"recv_dg_rr: got %d transactions\n",
trans_received);
fflush(where);
}
dg_rr_results->bytes_received = (trans_received *
(dg_rr_request->request_size +
dg_rr_request->response_size));
dg_rr_results->trans_received = trans_received;
dg_rr_results->elapsed_time = elapsed_time;
if (dg_rr_request->measure_cpu) {
dg_rr_results->cpu_util = calc_cpu_util(elapsed_time);
}
if (debug) {
fprintf(where,
"recv_dg_rr: test complete, sending results.\n");
fflush(where);
}
send_response();
unlink(myaddr_un.sun_path);
}
/* this routine implements the receive (netserver) side of a STREAM_RR */
/* test */
void
recv_stream_rr()
{
struct ring_elt *send_ring;
struct ring_elt *recv_ring;
struct sockaddr_un myaddr_un,
peeraddr_un;
SOCKET s_listen,s_data;
int addrlen;
char *temp_message_ptr;
int trans_received = 0;
int trans_remaining;
int bytes_sent;
int request_bytes_recvd;
int request_bytes_remaining;
int timed_out = 0;
float elapsed_time;
struct stream_rr_request_struct *stream_rr_request;
struct stream_rr_response_struct *stream_rr_response;
struct stream_rr_results_struct *stream_rr_results;
stream_rr_request =
(struct stream_rr_request_struct *)netperf_request.content.test_specific_data;
stream_rr_response =
(struct stream_rr_response_struct *)netperf_response.content.test_specific_data;
stream_rr_results =
(struct stream_rr_results_struct *)netperf_response.content.test_specific_data;
if (debug) {
fprintf(where,"netserver: recv_stream_rr: entered...\n");
fflush(where);
}
/* We want to set-up the listen socket with all the desired */
/* parameters and then let the initiator know that all is ready. If */
/* socket size defaults are to be used, then the initiator will have */
/* sent us 0's. If the socket sizes cannot be changed, then we will */
/* send-back what they are. If that information cannot be determined, */
/* then we send-back -1's for the sizes. If things go wrong for any */
/* reason, we will drop back ten yards and punt. */
/* If anything goes wrong, we want the remote to know about it. It */
/* would be best if the error that the remote reports to the user is */
/* the actual error we encountered, rather than some bogus unexpected */
/* response type message. */
if (debug) {
fprintf(where,"recv_stream_rr: setting the response type...\n");
fflush(where);
}
netperf_response.content.response_type = STREAM_RR_RESPONSE;
if (debug) {
fprintf(where,"recv_stream_rr: the response type is set...\n");
fflush(where);
}
/* allocate the recv and send rings with the requested alignments */
/* and offsets. raj 7/94 */
if (debug) {
fprintf(where,"recv_stream_rr: requested recv alignment of %d offset %d\n",
stream_rr_request->recv_alignment,
stream_rr_request->recv_offset);
fprintf(where,"recv_stream_rr: requested send alignment of %d offset %d\n",
stream_rr_request->send_alignment,
stream_rr_request->send_offset);
fflush(where);
}
/* at some point, these need to come to us from the remote system */
if (send_width == 0) send_width = 1;
if (recv_width == 0) recv_width = 1;
send_ring = allocate_buffer_ring(send_width,
stream_rr_request->response_size,
stream_rr_request->send_alignment,
stream_rr_request->send_offset);
recv_ring = allocate_buffer_ring(recv_width,
stream_rr_request->request_size,
stream_rr_request->recv_alignment,
stream_rr_request->recv_offset);
/* Let's clear-out our sockaddr for the sake of cleanlines. Then we */
/* can put in OUR values !-) At some point, we may want to nail this */
/* socket to a particular network-level address, but for now, */
/* INADDR_ANY should be just fine. */
bzero((char *)&myaddr_un,
sizeof(myaddr_un));
myaddr_un.sun_family = AF_UNIX;
/* Grab a socket to listen on, and then listen on it. */
if (debug) {
fprintf(where,"recv_stream_rr: grabbing a socket...\n");
fflush(where);
}
/* create_unix_socket expects to find some things in the global */
/* variables, so set the globals based on the values in the request. */
/* once the socket has been created, we will set the response values */
/* based on the updated value of those globals. raj 7/94 */
lss_size_req = stream_rr_request->send_buf_size;
lsr_size_req = stream_rr_request->recv_buf_size;
s_listen = create_unix_socket(AF_UNIX,
SOCK_STREAM);
if (s_listen == INVALID_SOCKET) {
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
/* Let's get an address assigned to this socket so we can tell the */
/* initiator how to reach the data socket. There may be a desire to */
/* nail this socket to a specific IP address in a multi-homed, */
/* multi-connection situation, but for now, we'll ignore the issue */
/* and concentrate on single connection testing. */
strcpy(myaddr_un.sun_path,tempnam(path_prefix,"netperf."));
if (bind(s_listen,
(struct sockaddr *)&myaddr_un,
sizeof(myaddr_un)) == SOCKET_ERROR) {
netperf_response.content.serv_errno = errno;
unlink(myaddr_un.sun_path);
close(s_listen);
send_response();
exit(1);
}
/* Now, let's set-up the socket to listen for connections */
if (listen(s_listen, 5) == SOCKET_ERROR) {
netperf_response.content.serv_errno = errno;
close(s_listen);
send_response();
exit(1);
}
/* Now myaddr_un contains the port and the internet address this is */
/* returned to the sender also implicitly telling the sender that the */
/* socket buffer sizing has been done. */
strcpy(stream_rr_response->unix_path,myaddr_un.sun_path);
netperf_response.content.serv_errno = 0;
/* But wait, there's more. If the initiator wanted cpu measurements, */
/* then we must call the calibrate routine, which will return the max */
/* rate back to the initiator. If the CPU was not to be measured, or */
/* something went wrong with the calibration, we will return a 0.0 to */
/* the initiator. */
stream_rr_response->cpu_rate = 0.0; /* assume no cpu */
if (stream_rr_request->measure_cpu) {
stream_rr_response->measure_cpu = 1;
stream_rr_response->cpu_rate = calibrate_local_cpu(stream_rr_request->cpu_rate);
}
/* before we send the response back to the initiator, pull some of */
/* the socket parms from the globals */
stream_rr_response->send_buf_size = lss_size;
stream_rr_response->recv_buf_size = lsr_size;
send_response();
addrlen = sizeof(peeraddr_un);
if ((s_data = accept(s_listen,
(struct sockaddr *)&peeraddr_un,
&addrlen)) == INVALID_SOCKET) {
/* Let's just punt. The remote will be given some information */
close(s_listen);
exit(1);
}
if (debug) {
fprintf(where,"recv_stream_rr: accept completes on the data connection.\n");
fflush(where);
}
/* Now it's time to start receiving data on the connection. We will */
/* first grab the apropriate counters and then start grabbing. */
cpu_start(stream_rr_request->measure_cpu);
/* The loop will exit when the sender does a shutdown, which will */
/* return a length of zero */
if (stream_rr_request->test_length > 0) {
times_up = 0;
trans_remaining = 0;
start_timer(stream_rr_request->test_length + PAD_TIME);
}
else {
times_up = 1;
trans_remaining = stream_rr_request->test_length * -1;
}
while ((!times_up) || (trans_remaining > 0)) {
temp_message_ptr = recv_ring->buffer_ptr;
request_bytes_remaining = stream_rr_request->request_size;
/* receive the request from the other side */
if (debug) {
fprintf(where,"about to receive for trans %d\n",trans_received);
fprintf(where,"temp_message_ptr is %p\n",temp_message_ptr);
fflush(where);
}
while(request_bytes_remaining > 0) {
if((request_bytes_recvd=recv(s_data,
temp_message_ptr,
request_bytes_remaining,
0)) == SOCKET_ERROR) {
if (errno == EINTR) {
/* the timer popped */
timed_out = 1;
break;
}
netperf_response.content.serv_errno = errno;
send_response();
exit(1);
}
else {
request_bytes_remaining -= request_bytes_recvd;
temp_message_ptr += request_bytes_recvd;
}
if (debug) {
fprintf(where,"just received for trans %d\n",trans_received);
fflush(where);
}
}
recv_ring = recv_ring->next;
if (timed_out) {
/* we hit the end of the test based on time - lets */
/* bail out of here now... */
fprintf(where,"yo5\n");
fflush(where);
break;
}
/* Now, send the response to the remote */
if (debug) {
fprintf(where,"about to send for trans %d\n",trans_received);
fflush(where);
}
if((bytes_sent=send(s_data,
send_ring->buffer_ptr,
stream_rr_request->response_size,
0)) == SOCKET_ERROR) {
if (errno == EINTR) {
/* the test timer has popped */
timed_out = 1;
fprintf(where,"yo6\n");
fflush(where);
break;
}
netperf_response.content.serv_errno = 997;
send_response();
exit(1);
}
send_ring = send_ring->next;
trans_received++;
if (trans_remaining) {
trans_remaining--;
}
if (debug) {
fprintf(where,
"recv_stream_rr: Transaction %d complete\n",
trans_received);
fflush(where);
}
}
/* The loop now exits due to timeout or transaction count being */
/* reached */
cpu_stop(stream_rr_request->measure_cpu,&elapsed_time);
if (timed_out) {
/* we ended the test by time, which was at least 2 seconds */
/* longer than we wanted to run. so, we want to subtract */
/* PAD_TIME from the elapsed_time. */
elapsed_time -= PAD_TIME;
}
/* send the results to the sender */
if (debug) {
fprintf(where,
"recv_stream_rr: got %d transactions\n",
trans_received);
fflush(where);
}
stream_rr_results->bytes_received = (trans_received *
(stream_rr_request->request_size +
stream_rr_request->response_size));
stream_rr_results->trans_received = trans_received;
stream_rr_results->elapsed_time = elapsed_time;
if (stream_rr_request->measure_cpu) {
stream_rr_results->cpu_util = calc_cpu_util(elapsed_time);
}
if (debug) {
fprintf(where,
"recv_stream_rr: test complete, sending results.\n");
fflush(where);
}
send_response();
unlink(myaddr_un.sun_path);
}
void
print_unix_usage()
{
fwrite(unix_usage, sizeof(char), strlen(unix_usage), stdout);
exit(1);
}
void
scan_unix_args(int argc, char *argv[])
{
#define UNIX_ARGS "hm:M:p:r:s:S:"
extern char *optarg; /* pointer to option string */
int c;
char
arg1[BUFSIZ], /* argument holders */
arg2[BUFSIZ];
init_test_vars();
if (no_control) {
fprintf(where,
"The UNIX tests do not know how to run with no control connection\n");
exit(-1);
}
/* Go through all the command line arguments and break them */
/* out. For those options that take two parms, specifying only */
/* the first will set both to that value. Specifying only the */
/* second will leave the first untouched. To change only the */
/* first, use the form "first," (see the routine break_args.. */
while ((c= getopt(argc, argv, UNIX_ARGS)) != EOF) {
switch (c) {
case '?':
case 'h':
print_unix_usage();
exit(1);
case 'p':
/* set the path prefix (directory) that should be used for the */
/* pipes. at some point, there should be some error checking. */
strcpy(path_prefix,optarg);
break;
case 's':
/* set local socket sizes */
break_args(optarg,arg1,arg2);
if (arg1[0])
lss_size_req = atoi(arg1);
if (arg2[0])
lsr_size_req = atoi(arg2);
break;
case 'S':
/* set remote socket sizes */
break_args(optarg,arg1,arg2);
if (arg1[0])
rss_size = atoi(arg1);
if (arg2[0])
rsr_size = atoi(arg2);
break;
case 'r':
/* set the request/response sizes */
break_args(optarg,arg1,arg2);
if (arg1[0])
req_size = atoi(arg1);
if (arg2[0])
rsp_size = atoi(arg2);
break;
case 'm':
/* set the send size */
send_size = atoi(optarg);
break;
case 'M':
/* set the recv size */
recv_size = atoi(optarg);
break;
};
}
}
#endif /* WANT_UNIX */