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42 * This test runs in conjunction with the pipepong test.
43 * This test creates two pipes and redirects the stdin and
44 * stdout of the pipepong test to the pipes. Then this
45 * test writes "ping" to the pipepong test and the pipepong
46 * test writes "pong" back. To run this pair of tests,
47 * just invoke pipeping.
49 * Tested areas: process creation, pipes, file descriptor
50 * inheritance, standard I/O redirection.
62 static char *child_argv[] = { "pipepong.exe", NULL };
64 static char *child_argv[] = { "pipepong", NULL };
67 #define NUM_ITERATIONS 10
69 int main(int argc, char **argv)
71 PRFileDesc *in_pipe[2];
72 PRFileDesc *out_pipe[2];
81 status = PR_CreatePipe(&in_pipe[0], &in_pipe[1]);
82 if (status == PR_FAILURE) {
83 fprintf(stderr, "PR_CreatePipe failed\n");
86 status = PR_CreatePipe(&out_pipe[0], &out_pipe[1]);
87 if (status == PR_FAILURE) {
88 fprintf(stderr, "PR_CreatePipe failed\n");
92 status = PR_SetFDInheritable(in_pipe[0], PR_FALSE);
93 if (status == PR_FAILURE) {
94 fprintf(stderr, "PR_SetFDInheritable failed\n");
97 status = PR_SetFDInheritable(in_pipe[1], PR_TRUE);
98 if (status == PR_FAILURE) {
99 fprintf(stderr, "PR_SetFDInheritable failed\n");
102 status = PR_SetFDInheritable(out_pipe[0], PR_TRUE);
103 if (status == PR_FAILURE) {
104 fprintf(stderr, "PR_SetFDInheritable failed\n");
107 status = PR_SetFDInheritable(out_pipe[1], PR_FALSE);
108 if (status == PR_FAILURE) {
109 fprintf(stderr, "PR_SetFDInheritable failed\n");
113 attr = PR_NewProcessAttr();
115 fprintf(stderr, "PR_NewProcessAttr failed\n");
119 PR_ProcessAttrSetStdioRedirect(attr, PR_StandardInput, out_pipe[0]);
120 PR_ProcessAttrSetStdioRedirect(attr, PR_StandardOutput, in_pipe[1]);
122 process = PR_CreateProcess(child_argv[0], child_argv, NULL, attr);
123 if (process == NULL) {
124 fprintf(stderr, "PR_CreateProcess failed\n");
127 PR_DestroyProcessAttr(attr);
128 status = PR_Close(out_pipe[0]);
129 if (status == PR_FAILURE) {
130 fprintf(stderr, "PR_Close failed\n");
133 status = PR_Close(in_pipe[1]);
134 if (status == PR_FAILURE) {
135 fprintf(stderr, "PR_Close failed\n");
139 for (idx = 0; idx < NUM_ITERATIONS; idx++) {
141 printf("ping process: sending \"%s\"\n", buf);
142 nBytes = PR_Write(out_pipe[1], buf, 5);
144 fprintf(stderr, "PR_Write failed: (%d, %d)\n", PR_GetError(),
148 memset(buf, 0, sizeof(buf));
149 nBytes = PR_Read(in_pipe[0], buf, sizeof(buf));
151 fprintf(stderr, "PR_Read failed: (%d, %d)\n",
152 PR_GetError(), PR_GetOSError());
155 printf("ping process: received \"%s\"\n", buf);
157 fprintf(stderr, "ping process: expected 5 bytes but got %d bytes\n",
161 if (strcmp(buf, "pong") != 0) {
162 fprintf(stderr, "ping process: expected \"pong\" but got \"%s\"\n",
168 status = PR_Close(in_pipe[0]);
169 if (status == PR_FAILURE) {
170 fprintf(stderr, "PR_Close failed\n");
173 status = PR_Close(out_pipe[1]);
174 if (status == PR_FAILURE) {
175 fprintf(stderr, "PR_Close failed\n");
178 status = PR_WaitProcess(process, &exitCode);
179 if (status == PR_FAILURE) {
180 fprintf(stderr, "PR_WaitProcess failed\n");