DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Untracked file

Line Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/***********************************************************************
**
** Name: select2.c
**
** Description: Measure PR_Select and Empty_Select performance.
**
** Modification History:
** 20-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
**	         The debug mode will print all of the printfs associated with this test.
**			 The regress mode will be the default mode. Since the regress tool limits
**           the output to a one line status:PASS or FAIL,all of the printf statements
**			 have been handled with an if (debug_mode) statement. 
***********************************************************************/

/***********************************************************************
** Includes
***********************************************************************/
/* Used to get the command line option */
#include "plgetopt.h"
#include "prttools.h"
#include "primpl.h"

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined(OS2)
#include <sys/time.h>
#endif

#define PORT 8000
#define DEFAULT_COUNT 10
PRInt32 count;


/***********************************************************************
** PRIVATE FUNCTION:    Test_Result
** DESCRIPTION: Used in conjunction with the regress tool, prints out the
**				status of the test case.
** INPUTS:      PASS/FAIL
** OUTPUTS:     None
** RETURN:      None
** SIDE EFFECTS:
**      
** RESTRICTIONS:
**      None
** MEMORY:      NA
** ALGORITHM:   Determine what the status is and print accordingly.
**      
***********************************************************************/


static void Test_Result (int result)
{
	switch (result)
	{
		case PASS:
			printf ("PASS\n");
			break;
		case FAIL:
			printf ("FAIL\n");
			break;
		default:
			printf ("NOSTATUS\n");
			break;
	}
}

static void EmptyPRSelect(void)
{
    PRInt32 index = count;
    PRInt32 rv;

    for (; index--;)
        rv = PR_Select(0, NULL, NULL, NULL, PR_INTERVAL_NO_WAIT);
}

static void EmptyNativeSelect(void)
{
    PRInt32 rv;
    PRInt32 index = count;
    struct timeval timeout;

    timeout.tv_sec = timeout.tv_usec = 0;
    for (; index--;)
        rv = select(0, NULL, NULL, NULL, &timeout);
}

static void PRSelectTest(void)
{
    PRFileDesc *listenSocket;
    PRNetAddr serverAddr;

    if ( (listenSocket = PR_NewTCPSocket()) == NULL) {
        if (debug_mode) printf("\tServer error creating listen socket\n");
        return;
    }

    memset(&serverAddr, 0, sizeof(PRNetAddr));
    serverAddr.inet.family = AF_INET;
    serverAddr.inet.port = PR_htons(PORT);
    serverAddr.inet.ip = PR_htonl(INADDR_ANY);

    if ( PR_Bind(listenSocket, &serverAddr) == PR_FAILURE) {
        if (debug_mode) printf("\tServer error binding to server address\n");
        PR_Close(listenSocket);
        return;
    }

    if ( PR_Listen(listenSocket, 128) == PR_FAILURE) {
        if (debug_mode) printf("\tServer error listening to server socket\n");
        PR_Close(listenSocket);
        return;
    }
    if (debug_mode) printf("Listening on port %d\n", PORT);

    {
        PRFileDesc *newSock;
        PRNetAddr rAddr;
        PRInt32 loops = 0;
        PR_fd_set rdset;
        PRInt32 rv;
        PRInt32 bytesRead;
        char buf[11];

        loops++;

        if (debug_mode) printf("Going into accept\n"); 

        newSock = PR_Accept(listenSocket, 
                              &rAddr,
                              PR_INTERVAL_NO_TIMEOUT);

	if (newSock) {
            if (debug_mode) printf("Got connection!\n");
        } else {
	    if (debug_mode) printf("PR_Accept failed: error code %d\n", PR_GetError());
		else Test_Result (FAIL);
        }

        PR_FD_ZERO(&rdset);
        PR_FD_SET(newSock, &rdset);

        if (debug_mode) printf("Going into select \n");

        rv = PR_Select(0, &rdset, 0, 0, PR_INTERVAL_NO_TIMEOUT);

        if (debug_mode) printf("return from select is %d\n", rv);

        if (PR_FD_ISSET(newSock, &rdset)) {
            if (debug_mode) printf("I can't believe it- the socket is ready okay!\n");
        } else {
            if (debug_mode) printf("Damn; the select test failed...\n");
			else Test_Result (FAIL);
        }

        strcpy(buf, "XXXXXXXXXX");
        bytesRead = PR_Recv(newSock, buf, 10, 0, PR_INTERVAL_NO_TIMEOUT);
	buf[10] = '\0';

        if (debug_mode) printf("Recv completed with %d bytes, %s\n", bytesRead, buf);

        PR_Close(newSock);
    }

}

#if defined(XP_UNIX)

static void NativeSelectTest(void)
{
    PRFileDesc *listenSocket;
    PRNetAddr serverAddr;

    if ( (listenSocket = PR_NewTCPSocket()) == NULL) {
        if (debug_mode) printf("\tServer error creating listen socket\n");
        return;
    }

    memset(&serverAddr, 0, sizeof(PRNetAddr));
    serverAddr.inet.family = AF_INET;
    serverAddr.inet.port = PR_htons(PORT);
    serverAddr.inet.ip = PR_htonl(INADDR_ANY);

    if ( PR_Bind(listenSocket, &serverAddr) == PR_FAILURE) {
        if (debug_mode) printf("\tServer error binding to server address\n");
        PR_Close(listenSocket);
        return;
    }

    if ( PR_Listen(listenSocket, 128) == PR_FAILURE) {
        if (debug_mode) printf("\tServer error listening to server socket\n");
        PR_Close(listenSocket);
        return;
    }
    if (debug_mode) printf("Listening on port %d\n", PORT);

    {
        PRIntn osfd;
        char buf[11];
        fd_set rdset;
        PRNetAddr rAddr;
        PRFileDesc *newSock;
        struct timeval timeout;
        PRInt32 bytesRead, rv, loops = 0;

        loops++;

        if (debug_mode) printf("Going into accept\n"); 

        newSock = PR_Accept(listenSocket, &rAddr, PR_INTERVAL_NO_TIMEOUT);

	if (newSock) {
            if (debug_mode) printf("Got connection!\n");
        } else {
	    if (debug_mode) printf("PR_Accept failed: error code %d\n", PR_GetError());
		else Test_Result (FAIL);
        }

        osfd = PR_FileDesc2NativeHandle(newSock);
        FD_ZERO(&rdset);
        FD_SET(osfd, &rdset);

        if (debug_mode) printf("Going into select \n");


        timeout.tv_sec = 2; timeout.tv_usec = 0;
        rv = select(osfd + 1, &rdset, NULL, NULL, &timeout);

        if (debug_mode) printf("return from select is %d\n", rv);

        if (FD_ISSET(osfd, &rdset)) {
            if (debug_mode)
                printf("I can't believe it- the socket is ready okay!\n");
        } else {
            if (debug_mode) printf("Damn; the select test failed...\n");
			else Test_Result (FAIL);
        }

        strcpy(buf, "XXXXXXXXXX");
        bytesRead = PR_Recv(newSock, buf, 10, 0, PR_INTERVAL_NO_TIMEOUT);
	buf[10] = '\0';

        if (debug_mode) printf("Recv completed with %d bytes, %s\n", bytesRead, buf);

        PR_Close(newSock);
    }

}  /* NativeSelectTest */

#endif /* defined(XP_UNIX) */

/************************************************************************/

static void Measure(void (*func)(void), const char *msg)
{
    PRIntervalTime start, stop;
    double d;
    PRInt32 tot;

    start = PR_IntervalNow();
    (*func)();
    stop = PR_IntervalNow();

    d = (double)PR_IntervalToMicroseconds(stop - start);
    tot = PR_IntervalToMilliseconds(stop-start);

    if (debug_mode) printf("%40s: %6.2f usec avg, %d msec total\n", msg, d / count, tot);
}

int main(int argc, char **argv)
{
	
	/* The command line argument: -d is used to determine if the test is being run
	in debug mode. The regress tool requires only one line output:PASS or FAIL.
	All of the printfs associated with this test has been handled with a if (debug_mode)
	test.
	Usage: test_name -d
	*/
	PLOptStatus os;
	PLOptState *opt = PL_CreateOptState(argc, argv, "d:");
	while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
    {
		if (PL_OPT_BAD == os) continue;
        switch (opt->option)
        {
        case 'd':  /* debug mode */
			debug_mode = 1;
            break;
         default:
            break;
        }
    }
	PL_DestroyOptState(opt);

 /* main test */
	
    PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
    PR_STDIO_INIT();

    if (argc > 2) {
	count = atoi(argv[2]);
    } else {
	count = DEFAULT_COUNT;
    }

#if defined(XP_UNIX)
    Measure(NativeSelectTest, "time to call 1 element select()");
#endif
    Measure(EmptyPRSelect, "time to call Empty PR_select()");
    Measure(EmptyNativeSelect, "time to call Empty select()");
    Measure(PRSelectTest, "time to call 1 element PR_select()");

	if (!debug_mode) Test_Result (NOSTATUS);
    PR_Cleanup();


}