The Tor Browser / file comparison
comparison: nsprpub/pr/tests/pipeping.c
nsprpub/pr/tests/pipeping.c
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
equal
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| -1:000000000000 | 0:48a7567e99f3 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 /* | |
| 7 * File: pipeping.c | |
| 8 * | |
| 9 * Description: | |
| 10 * This test runs in conjunction with the pipepong test. | |
| 11 * This test creates two pipes and redirects the stdin and | |
| 12 * stdout of the pipepong test to the pipes. Then this | |
| 13 * test writes "ping" to the pipepong test and the pipepong | |
| 14 * test writes "pong" back. To run this pair of tests, | |
| 15 * just invoke pipeping. | |
| 16 * | |
| 17 * Tested areas: process creation, pipes, file descriptor | |
| 18 * inheritance, standard I/O redirection. | |
| 19 */ | |
| 20 | |
| 21 #include "prerror.h" | |
| 22 #include "prio.h" | |
| 23 #include "prproces.h" | |
| 24 | |
| 25 #include <stdio.h> | |
| 26 #include <stdlib.h> | |
| 27 #include <string.h> | |
| 28 | |
| 29 #ifdef XP_OS2 | |
| 30 static char *child_argv[] = { "pipepong.exe", NULL }; | |
| 31 #else | |
| 32 static char *child_argv[] = { "pipepong", NULL }; | |
| 33 #endif | |
| 34 | |
| 35 #define NUM_ITERATIONS 10 | |
| 36 | |
| 37 int main(int argc, char **argv) | |
| 38 { | |
| 39 PRFileDesc *in_pipe[2]; | |
| 40 PRFileDesc *out_pipe[2]; | |
| 41 PRStatus status; | |
| 42 PRProcess *process; | |
| 43 PRProcessAttr *attr; | |
| 44 char buf[1024]; | |
| 45 PRInt32 nBytes; | |
| 46 PRInt32 exitCode; | |
| 47 int idx; | |
| 48 | |
| 49 status = PR_CreatePipe(&in_pipe[0], &in_pipe[1]); | |
| 50 if (status == PR_FAILURE) { | |
| 51 fprintf(stderr, "PR_CreatePipe failed\n"); | |
| 52 exit(1); | |
| 53 } | |
| 54 status = PR_CreatePipe(&out_pipe[0], &out_pipe[1]); | |
| 55 if (status == PR_FAILURE) { | |
| 56 fprintf(stderr, "PR_CreatePipe failed\n"); | |
| 57 exit(1); | |
| 58 } | |
| 59 | |
| 60 status = PR_SetFDInheritable(in_pipe[0], PR_FALSE); | |
| 61 if (status == PR_FAILURE) { | |
| 62 fprintf(stderr, "PR_SetFDInheritable failed\n"); | |
| 63 exit(1); | |
| 64 } | |
| 65 status = PR_SetFDInheritable(in_pipe[1], PR_TRUE); | |
| 66 if (status == PR_FAILURE) { | |
| 67 fprintf(stderr, "PR_SetFDInheritable failed\n"); | |
| 68 exit(1); | |
| 69 } | |
| 70 status = PR_SetFDInheritable(out_pipe[0], PR_TRUE); | |
| 71 if (status == PR_FAILURE) { | |
| 72 fprintf(stderr, "PR_SetFDInheritable failed\n"); | |
| 73 exit(1); | |
| 74 } | |
| 75 status = PR_SetFDInheritable(out_pipe[1], PR_FALSE); | |
| 76 if (status == PR_FAILURE) { | |
| 77 fprintf(stderr, "PR_SetFDInheritable failed\n"); | |
| 78 exit(1); | |
| 79 } | |
| 80 | |
| 81 attr = PR_NewProcessAttr(); | |
| 82 if (attr == NULL) { | |
| 83 fprintf(stderr, "PR_NewProcessAttr failed\n"); | |
| 84 exit(1); | |
| 85 } | |
| 86 | |
| 87 PR_ProcessAttrSetStdioRedirect(attr, PR_StandardInput, out_pipe[0]); | |
| 88 PR_ProcessAttrSetStdioRedirect(attr, PR_StandardOutput, in_pipe[1]); | |
| 89 | |
| 90 process = PR_CreateProcess(child_argv[0], child_argv, NULL, attr); | |
| 91 if (process == NULL) { | |
| 92 fprintf(stderr, "PR_CreateProcess failed\n"); | |
| 93 exit(1); | |
| 94 } | |
| 95 PR_DestroyProcessAttr(attr); | |
| 96 status = PR_Close(out_pipe[0]); | |
| 97 if (status == PR_FAILURE) { | |
| 98 fprintf(stderr, "PR_Close failed\n"); | |
| 99 exit(1); | |
| 100 } | |
| 101 status = PR_Close(in_pipe[1]); | |
| 102 if (status == PR_FAILURE) { | |
| 103 fprintf(stderr, "PR_Close failed\n"); | |
| 104 exit(1); | |
| 105 } | |
| 106 | |
| 107 for (idx = 0; idx < NUM_ITERATIONS; idx++) { | |
| 108 strcpy(buf, "ping"); | |
| 109 printf("ping process: sending \"%s\"\n", buf); | |
| 110 nBytes = PR_Write(out_pipe[1], buf, 5); | |
| 111 if (nBytes == -1) { | |
| 112 fprintf(stderr, "PR_Write failed: (%d, %d)\n", PR_GetError(), | |
| 113 PR_GetOSError()); | |
| 114 exit(1); | |
| 115 } | |
| 116 memset(buf, 0, sizeof(buf)); | |
| 117 nBytes = PR_Read(in_pipe[0], buf, sizeof(buf)); | |
| 118 if (nBytes == -1) { | |
| 119 fprintf(stderr, "PR_Read failed: (%d, %d)\n", | |
| 120 PR_GetError(), PR_GetOSError()); | |
| 121 exit(1); | |
| 122 } | |
| 123 printf("ping process: received \"%s\"\n", buf); | |
| 124 if (nBytes != 5) { | |
| 125 fprintf(stderr, "ping process: expected 5 bytes but got %d bytes\n", | |
| 126 nBytes); | |
| 127 exit(1); | |
| 128 } | |
| 129 if (strcmp(buf, "pong") != 0) { | |
| 130 fprintf(stderr, "ping process: expected \"pong\" but got \"%s\"\n", | |
| 131 buf); | |
| 132 exit(1); | |
| 133 } | |
| 134 } | |
| 135 | |
| 136 status = PR_Close(in_pipe[0]); | |
| 137 if (status == PR_FAILURE) { | |
| 138 fprintf(stderr, "PR_Close failed\n"); | |
| 139 exit(1); | |
| 140 } | |
| 141 status = PR_Close(out_pipe[1]); | |
| 142 if (status == PR_FAILURE) { | |
| 143 fprintf(stderr, "PR_Close failed\n"); | |
| 144 exit(1); | |
| 145 } | |
| 146 status = PR_WaitProcess(process, &exitCode); | |
| 147 if (status == PR_FAILURE) { | |
| 148 fprintf(stderr, "PR_WaitProcess failed\n"); | |
| 149 exit(1); | |
| 150 } | |
| 151 if (exitCode == 0) { | |
| 152 printf("PASS\n"); | |
| 153 return 0; | |
| 154 } else { | |
| 155 printf("FAIL\n"); | |
| 156 return 1; | |
| 157 } | |
| 158 } |
