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Diffstat (limited to 'nsprpub/pr/tests/semaping.c')
| -rw-r--r-- | nsprpub/pr/tests/semaping.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/semaping.c b/nsprpub/pr/tests/semaping.c new file mode 100644 index 0000000000..3b653d524e --- /dev/null +++ b/nsprpub/pr/tests/semaping.c @@ -0,0 +1,187 @@ +/* -*- 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/. */ + +#include "nspr.h" +#include "plgetopt.h" + +#include <stdio.h> + +#ifdef DEBUG +#define SEM_D "D" +#else +#define SEM_D +#endif +#ifdef IS_64 +#define SEM_64 "64" +#else +#define SEM_64 +#endif + +#define SHM_NAME "/tmp/counter" SEM_D SEM_64 +#define SEM_NAME1 "/tmp/foo.sem" SEM_D SEM_64 +#define SEM_NAME2 "/tmp/bar.sem" SEM_D SEM_64 +#define EXE_NAME "semapong" +#define SEM_MODE 0666 +#define SHM_MODE 0666 +#define ITERATIONS 1000 + +static PRBool debug_mode = PR_FALSE; +static PRIntn iterations = ITERATIONS; +static PRSem *sem1, *sem2; + +static void Help(void) +{ + fprintf(stderr, "semaping test program usage:\n"); + fprintf(stderr, "\t-d debug mode (FALSE)\n"); + fprintf(stderr, "\t-c <count> loop count (%d)\n", ITERATIONS); + fprintf(stderr, "\t-h this message\n"); +} /* Help */ + +int main(int argc, char **argv) +{ + PRProcess *proc; + PRIntn i; + char *child_argv[32]; + char **child_arg; + char iterations_buf[32]; + PRSharedMemory *shm; + PRIntn *counter_addr; + PRInt32 exit_code; + PLOptStatus os; + PLOptState *opt = PL_CreateOptState(argc, argv, "dc:h"); + + while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) { + if (PL_OPT_BAD == os) { + continue; + } + switch (opt->option) { + case 'd': /* debug mode */ + debug_mode = PR_TRUE; + break; + case 'c': /* loop count */ + iterations = atoi(opt->value); + break; + case 'h': + default: + Help(); + return 2; + } + } + PL_DestroyOptState(opt); + + if (PR_DeleteSharedMemory(SHM_NAME) == PR_SUCCESS) { + fprintf(stderr, "warning: removed shared memory %s left over " + "from previous run\n", SHM_NAME); + } + if (PR_DeleteSemaphore(SEM_NAME1) == PR_SUCCESS) { + fprintf(stderr, "warning: removed semaphore %s left over " + "from previous run\n", SEM_NAME1); + } + if (PR_DeleteSemaphore(SEM_NAME2) == PR_SUCCESS) { + fprintf(stderr, "warning: removed semaphore %s left over " + "from previous run\n", SEM_NAME2); + } + + shm = PR_OpenSharedMemory(SHM_NAME, sizeof(*counter_addr), PR_SHM_CREATE, SHM_MODE); + if (NULL == shm) { + fprintf(stderr, "PR_OpenSharedMemory failed (%d, %d)\n", + PR_GetError(), PR_GetOSError()); + exit(1); + } + counter_addr = PR_AttachSharedMemory(shm, 0); + if (NULL == counter_addr) { + fprintf(stderr, "PR_AttachSharedMemory failed\n"); + exit(1); + } + *counter_addr = 0; + sem1 = PR_OpenSemaphore(SEM_NAME1, PR_SEM_CREATE, SEM_MODE, 1); + if (NULL == sem1) { + fprintf(stderr, "PR_OpenSemaphore failed (%d, %d)\n", + PR_GetError(), PR_GetOSError()); + exit(1); + } + sem2 = PR_OpenSemaphore(SEM_NAME2, PR_SEM_CREATE, SEM_MODE, 0); + if (NULL == sem2) { + fprintf(stderr, "PR_OpenSemaphore failed (%d, %d)\n", + PR_GetError(), PR_GetOSError()); + exit(1); + } + + child_arg = &child_argv[0]; + *child_arg++ = EXE_NAME; + if (debug_mode != PR_FALSE) { + *child_arg++ = "-d"; + } + if (iterations != ITERATIONS) { + *child_arg++ = "-c"; + PR_snprintf(iterations_buf, sizeof(iterations_buf), "%d", iterations); + *child_arg++ = iterations_buf; + } + *child_arg = NULL; + proc = PR_CreateProcess(child_argv[0], child_argv, NULL, NULL); + if (NULL == proc) { + fprintf(stderr, "PR_CreateProcess failed\n"); + exit(1); + } + + /* + * Process 1 waits on semaphore 1 and posts to semaphore 2. + */ + for (i = 0; i < iterations; i++) { + if (PR_WaitSemaphore(sem1) == PR_FAILURE) { + fprintf(stderr, "PR_WaitSemaphore failed\n"); + exit(1); + } + if (*counter_addr == 2*i) { + if (debug_mode) { + printf("process 1: counter = %d\n", *counter_addr); + } + } else { + fprintf(stderr, "process 1: counter should be %d but is %d\n", + 2*i, *counter_addr); + exit(1); + } + (*counter_addr)++; + if (PR_PostSemaphore(sem2) == PR_FAILURE) { + fprintf(stderr, "PR_PostSemaphore failed\n"); + exit(1); + } + } + if (PR_DetachSharedMemory(shm, counter_addr) == PR_FAILURE) { + fprintf(stderr, "PR_DetachSharedMemory failed\n"); + exit(1); + } + if (PR_CloseSharedMemory(shm) == PR_FAILURE) { + fprintf(stderr, "PR_CloseSharedMemory failed\n"); + exit(1); + } + if (PR_CloseSemaphore(sem1) == PR_FAILURE) { + fprintf(stderr, "PR_CloseSemaphore failed\n"); + } + if (PR_CloseSemaphore(sem2) == PR_FAILURE) { + fprintf(stderr, "PR_CloseSemaphore failed\n"); + } + + if (PR_WaitProcess(proc, &exit_code) == PR_FAILURE) { + fprintf(stderr, "PR_WaitProcess failed\n"); + exit(1); + } + if (exit_code != 0) { + fprintf(stderr, "process 2 failed with exit code %d\n", exit_code); + exit(1); + } + + if (PR_DeleteSharedMemory(SHM_NAME) == PR_FAILURE) { + fprintf(stderr, "PR_DeleteSharedMemory failed\n"); + } + if (PR_DeleteSemaphore(SEM_NAME1) == PR_FAILURE) { + fprintf(stderr, "PR_DeleteSemaphore failed\n"); + } + if (PR_DeleteSemaphore(SEM_NAME2) == PR_FAILURE) { + fprintf(stderr, "PR_DeleteSemaphore failed\n"); + } + printf("PASS\n"); + return 0; +} |