/* -*- 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 SYMBIAN #define SHM_NAME "c:\\data\\counter" #define SEM_NAME1 "c:\\data\\foo.sem" #define SEM_NAME2 "c:\\data\\bar.sem" #else #define SHM_NAME "/tmp/counter" #define SEM_NAME1 "/tmp/foo.sem" #define SEM_NAME2 "/tmp/bar.sem" #endif #define ITERATIONS 1000 static PRBool debug_mode = PR_FALSE; static PRIntn iterations = ITERATIONS; static PRSem *sem1, *sem2; static void Help(void) { fprintf(stderr, "semapong 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) { PRIntn i; PRSharedMemory *shm; PRIntn *counter_addr; 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); shm = PR_OpenSharedMemory(SHM_NAME, sizeof(*counter_addr), 0, 0666); if (NULL == shm) { fprintf(stderr, "PR_OpenSharedMemory failed (%d, %d)\n", PR_GetError(), PR_GetOSError()); exit(1); } sem1 = PR_OpenSemaphore(SEM_NAME1, 0, 0, 0); if (NULL == sem1) { fprintf(stderr, "PR_OpenSemaphore failed (%d, %d)\n", PR_GetError(), PR_GetOSError()); exit(1); } sem2 = PR_OpenSemaphore(SEM_NAME2, 0, 0, 0); if (NULL == sem2) { fprintf(stderr, "PR_OpenSemaphore 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); } /* * Process 2 waits on semaphore 2 and posts to semaphore 1. */ for (i = 0; i < iterations; i++) { if (PR_WaitSemaphore(sem2) == PR_FAILURE) { fprintf(stderr, "PR_WaitSemaphore failed\n"); exit(1); } if (*counter_addr == 2*i+1) { if (debug_mode) printf("process 2: counter = %d\n", *counter_addr); } else { fprintf(stderr, "process 2: counter should be %d but is %d\n", 2*i+1, *counter_addr); exit(1); } (*counter_addr)++; if (PR_PostSemaphore(sem1) == 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"); } printf("PASS\n"); return 0; }