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nsprpub/pr/tests/select2.c@44a2da4a2ab2 (annotated)

nsprpub/pr/tests/select2.c

Fri, 16 Jan 2015 04:50:19 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Fri, 16 Jan 2015 04:50:19 +0100
branch
TOR_BUG_9701
changeset 13
44a2da4a2ab2
permissions
-rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 /***********************************************************************
michael@0 7 **
michael@0 8 ** Name: select2.c
michael@0 9 **
michael@0 10 ** Description: Measure PR_Select and Empty_Select performance.
michael@0 11 **
michael@0 12 ** Modification History:
michael@0 13 ** 20-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
michael@0 14 ** The debug mode will print all of the printfs associated with this test.
michael@0 15 ** The regress mode will be the default mode. Since the regress tool limits
michael@0 16 ** the output to a one line status:PASS or FAIL,all of the printf statements
michael@0 17 ** have been handled with an if (debug_mode) statement.
michael@0 18 ***********************************************************************/
michael@0 19
michael@0 20 /***********************************************************************
michael@0 21 ** Includes
michael@0 22 ***********************************************************************/
michael@0 23 /* Used to get the command line option */
michael@0 24 #include "plgetopt.h"
michael@0 25 #include "prttools.h"
michael@0 26 #include "primpl.h"
michael@0 27
michael@0 28 #include <stdio.h>
michael@0 29 #include <stdlib.h>
michael@0 30 #include <string.h>
michael@0 31 #if defined(OS2)
michael@0 32 #include <sys/time.h>
michael@0 33 #endif
michael@0 34
michael@0 35 #define PORT 8000
michael@0 36 #define DEFAULT_COUNT 10
michael@0 37 PRInt32 count;
michael@0 38
michael@0 39
michael@0 40 /***********************************************************************
michael@0 41 ** PRIVATE FUNCTION: Test_Result
michael@0 42 ** DESCRIPTION: Used in conjunction with the regress tool, prints out the
michael@0 43 ** status of the test case.
michael@0 44 ** INPUTS: PASS/FAIL
michael@0 45 ** OUTPUTS: None
michael@0 46 ** RETURN: None
michael@0 47 ** SIDE EFFECTS:
michael@0 48 **
michael@0 49 ** RESTRICTIONS:
michael@0 50 ** None
michael@0 51 ** MEMORY: NA
michael@0 52 ** ALGORITHM: Determine what the status is and print accordingly.
michael@0 53 **
michael@0 54 ***********************************************************************/
michael@0 55
michael@0 56
michael@0 57 static void Test_Result (int result)
michael@0 58 {
michael@0 59 switch (result)
michael@0 60 {
michael@0 61 case PASS:
michael@0 62 printf ("PASS\n");
michael@0 63 break;
michael@0 64 case FAIL:
michael@0 65 printf ("FAIL\n");
michael@0 66 break;
michael@0 67 default:
michael@0 68 printf ("NOSTATUS\n");
michael@0 69 break;
michael@0 70 }
michael@0 71 }
michael@0 72
michael@0 73 static void EmptyPRSelect(void)
michael@0 74 {
michael@0 75 PRInt32 index = count;
michael@0 76 PRInt32 rv;
michael@0 77
michael@0 78 for (; index--;)
michael@0 79 rv = PR_Select(0, NULL, NULL, NULL, PR_INTERVAL_NO_WAIT);
michael@0 80 }
michael@0 81
michael@0 82 static void EmptyNativeSelect(void)
michael@0 83 {
michael@0 84 PRInt32 rv;
michael@0 85 PRInt32 index = count;
michael@0 86 struct timeval timeout;
michael@0 87
michael@0 88 timeout.tv_sec = timeout.tv_usec = 0;
michael@0 89 for (; index--;)
michael@0 90 rv = select(0, NULL, NULL, NULL, &timeout);
michael@0 91 }
michael@0 92
michael@0 93 static void PRSelectTest(void)
michael@0 94 {
michael@0 95 PRFileDesc *listenSocket;
michael@0 96 PRNetAddr serverAddr;
michael@0 97
michael@0 98 if ( (listenSocket = PR_NewTCPSocket()) == NULL) {
michael@0 99 if (debug_mode) printf("\tServer error creating listen socket\n");
michael@0 100 return;
michael@0 101 }
michael@0 102
michael@0 103 memset(&serverAddr, 0, sizeof(PRNetAddr));
michael@0 104 serverAddr.inet.family = AF_INET;
michael@0 105 serverAddr.inet.port = PR_htons(PORT);
michael@0 106 serverAddr.inet.ip = PR_htonl(INADDR_ANY);
michael@0 107
michael@0 108 if ( PR_Bind(listenSocket, &serverAddr) == PR_FAILURE) {
michael@0 109 if (debug_mode) printf("\tServer error binding to server address\n");
michael@0 110 PR_Close(listenSocket);
michael@0 111 return;
michael@0 112 }
michael@0 113
michael@0 114 if ( PR_Listen(listenSocket, 128) == PR_FAILURE) {
michael@0 115 if (debug_mode) printf("\tServer error listening to server socket\n");
michael@0 116 PR_Close(listenSocket);
michael@0 117 return;
michael@0 118 }
michael@0 119 if (debug_mode) printf("Listening on port %d\n", PORT);
michael@0 120
michael@0 121 {
michael@0 122 PRFileDesc *newSock;
michael@0 123 PRNetAddr rAddr;
michael@0 124 PRInt32 loops = 0;
michael@0 125 PR_fd_set rdset;
michael@0 126 PRInt32 rv;
michael@0 127 PRInt32 bytesRead;
michael@0 128 char buf[11];
michael@0 129
michael@0 130 loops++;
michael@0 131
michael@0 132 if (debug_mode) printf("Going into accept\n");
michael@0 133
michael@0 134 newSock = PR_Accept(listenSocket,
michael@0 135 &rAddr,
michael@0 136 PR_INTERVAL_NO_TIMEOUT);
michael@0 137
michael@0 138 if (newSock) {
michael@0 139 if (debug_mode) printf("Got connection!\n");
michael@0 140 } else {
michael@0 141 if (debug_mode) printf("PR_Accept failed: error code %d\n", PR_GetError());
michael@0 142 else Test_Result (FAIL);
michael@0 143 }
michael@0 144
michael@0 145 PR_FD_ZERO(&rdset);
michael@0 146 PR_FD_SET(newSock, &rdset);
michael@0 147
michael@0 148 if (debug_mode) printf("Going into select \n");
michael@0 149
michael@0 150 rv = PR_Select(0, &rdset, 0, 0, PR_INTERVAL_NO_TIMEOUT);
michael@0 151
michael@0 152 if (debug_mode) printf("return from select is %d\n", rv);
michael@0 153
michael@0 154 if (PR_FD_ISSET(newSock, &rdset)) {
michael@0 155 if (debug_mode) printf("I can't believe it- the socket is ready okay!\n");
michael@0 156 } else {
michael@0 157 if (debug_mode) printf("Damn; the select test failed...\n");
michael@0 158 else Test_Result (FAIL);
michael@0 159 }
michael@0 160
michael@0 161 strcpy(buf, "XXXXXXXXXX");
michael@0 162 bytesRead = PR_Recv(newSock, buf, 10, 0, PR_INTERVAL_NO_TIMEOUT);
michael@0 163 buf[10] = '\0';
michael@0 164
michael@0 165 if (debug_mode) printf("Recv completed with %d bytes, %s\n", bytesRead, buf);
michael@0 166
michael@0 167 PR_Close(newSock);
michael@0 168 }
michael@0 169
michael@0 170 }
michael@0 171
michael@0 172 #if defined(XP_UNIX)
michael@0 173
michael@0 174 static void NativeSelectTest(void)
michael@0 175 {
michael@0 176 PRFileDesc *listenSocket;
michael@0 177 PRNetAddr serverAddr;
michael@0 178
michael@0 179 if ( (listenSocket = PR_NewTCPSocket()) == NULL) {
michael@0 180 if (debug_mode) printf("\tServer error creating listen socket\n");
michael@0 181 return;
michael@0 182 }
michael@0 183
michael@0 184 memset(&serverAddr, 0, sizeof(PRNetAddr));
michael@0 185 serverAddr.inet.family = AF_INET;
michael@0 186 serverAddr.inet.port = PR_htons(PORT);
michael@0 187 serverAddr.inet.ip = PR_htonl(INADDR_ANY);
michael@0 188
michael@0 189 if ( PR_Bind(listenSocket, &serverAddr) == PR_FAILURE) {
michael@0 190 if (debug_mode) printf("\tServer error binding to server address\n");
michael@0 191 PR_Close(listenSocket);
michael@0 192 return;
michael@0 193 }
michael@0 194
michael@0 195 if ( PR_Listen(listenSocket, 128) == PR_FAILURE) {
michael@0 196 if (debug_mode) printf("\tServer error listening to server socket\n");
michael@0 197 PR_Close(listenSocket);
michael@0 198 return;
michael@0 199 }
michael@0 200 if (debug_mode) printf("Listening on port %d\n", PORT);
michael@0 201
michael@0 202 {
michael@0 203 PRIntn osfd;
michael@0 204 char buf[11];
michael@0 205 fd_set rdset;
michael@0 206 PRNetAddr rAddr;
michael@0 207 PRFileDesc *newSock;
michael@0 208 struct timeval timeout;
michael@0 209 PRInt32 bytesRead, rv, loops = 0;
michael@0 210
michael@0 211 loops++;
michael@0 212
michael@0 213 if (debug_mode) printf("Going into accept\n");
michael@0 214
michael@0 215 newSock = PR_Accept(listenSocket, &rAddr, PR_INTERVAL_NO_TIMEOUT);
michael@0 216
michael@0 217 if (newSock) {
michael@0 218 if (debug_mode) printf("Got connection!\n");
michael@0 219 } else {
michael@0 220 if (debug_mode) printf("PR_Accept failed: error code %d\n", PR_GetError());
michael@0 221 else Test_Result (FAIL);
michael@0 222 }
michael@0 223
michael@0 224 osfd = PR_FileDesc2NativeHandle(newSock);
michael@0 225 FD_ZERO(&rdset);
michael@0 226 FD_SET(osfd, &rdset);
michael@0 227
michael@0 228 if (debug_mode) printf("Going into select \n");
michael@0 229
michael@0 230
michael@0 231 timeout.tv_sec = 2; timeout.tv_usec = 0;
michael@0 232 rv = select(osfd + 1, &rdset, NULL, NULL, &timeout);
michael@0 233
michael@0 234 if (debug_mode) printf("return from select is %d\n", rv);
michael@0 235
michael@0 236 if (FD_ISSET(osfd, &rdset)) {
michael@0 237 if (debug_mode)
michael@0 238 printf("I can't believe it- the socket is ready okay!\n");
michael@0 239 } else {
michael@0 240 if (debug_mode) printf("Damn; the select test failed...\n");
michael@0 241 else Test_Result (FAIL);
michael@0 242 }
michael@0 243
michael@0 244 strcpy(buf, "XXXXXXXXXX");
michael@0 245 bytesRead = PR_Recv(newSock, buf, 10, 0, PR_INTERVAL_NO_TIMEOUT);
michael@0 246 buf[10] = '\0';
michael@0 247
michael@0 248 if (debug_mode) printf("Recv completed with %d bytes, %s\n", bytesRead, buf);
michael@0 249
michael@0 250 PR_Close(newSock);
michael@0 251 }
michael@0 252
michael@0 253 } /* NativeSelectTest */
michael@0 254
michael@0 255 #endif /* defined(XP_UNIX) */
michael@0 256
michael@0 257 /************************************************************************/
michael@0 258
michael@0 259 static void Measure(void (*func)(void), const char *msg)
michael@0 260 {
michael@0 261 PRIntervalTime start, stop;
michael@0 262 double d;
michael@0 263 PRInt32 tot;
michael@0 264
michael@0 265 start = PR_IntervalNow();
michael@0 266 (*func)();
michael@0 267 stop = PR_IntervalNow();
michael@0 268
michael@0 269 d = (double)PR_IntervalToMicroseconds(stop - start);
michael@0 270 tot = PR_IntervalToMilliseconds(stop-start);
michael@0 271
michael@0 272 if (debug_mode) printf("%40s: %6.2f usec avg, %d msec total\n", msg, d / count, tot);
michael@0 273 }
michael@0 274
michael@0 275 int main(int argc, char **argv)
michael@0 276 {
michael@0 277
michael@0 278 /* The command line argument: -d is used to determine if the test is being run
michael@0 279 in debug mode. The regress tool requires only one line output:PASS or FAIL.
michael@0 280 All of the printfs associated with this test has been handled with a if (debug_mode)
michael@0 281 test.
michael@0 282 Usage: test_name -d
michael@0 283 */
michael@0 284 PLOptStatus os;
michael@0 285 PLOptState *opt = PL_CreateOptState(argc, argv, "d:");
michael@0 286 while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
michael@0 287 {
michael@0 288 if (PL_OPT_BAD == os) continue;
michael@0 289 switch (opt->option)
michael@0 290 {
michael@0 291 case 'd': /* debug mode */
michael@0 292 debug_mode = 1;
michael@0 293 break;
michael@0 294 default:
michael@0 295 break;
michael@0 296 }
michael@0 297 }
michael@0 298 PL_DestroyOptState(opt);
michael@0 299
michael@0 300 /* main test */
michael@0 301
michael@0 302 PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
michael@0 303 PR_STDIO_INIT();
michael@0 304
michael@0 305 if (argc > 2) {
michael@0 306 count = atoi(argv[2]);
michael@0 307 } else {
michael@0 308 count = DEFAULT_COUNT;
michael@0 309 }
michael@0 310
michael@0 311 #if defined(XP_UNIX)
michael@0 312 Measure(NativeSelectTest, "time to call 1 element select()");
michael@0 313 #endif
michael@0 314 Measure(EmptyPRSelect, "time to call Empty PR_select()");
michael@0 315 Measure(EmptyNativeSelect, "time to call Empty select()");
michael@0 316 Measure(PRSelectTest, "time to call 1 element PR_select()");
michael@0 317
michael@0 318 if (!debug_mode) Test_Result (NOSTATUS);
michael@0 319 PR_Cleanup();
michael@0 320
michael@0 321
michael@0 322 }

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