michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nspr.h"
michael@0: #include "plgetopt.h"
michael@0: 
michael@0: #include <stdio.h>
michael@0: 
michael@0: #ifdef SYMBIAN
michael@0: #define SHM_NAME "c:\\data\\counter"
michael@0: #define SEM_NAME1 "c:\\data\\foo.sem"
michael@0: #define SEM_NAME2 "c:\\data\\bar.sem"
michael@0: #else
michael@0: #define SHM_NAME "/tmp/counter"
michael@0: #define SEM_NAME1 "/tmp/foo.sem"
michael@0: #define SEM_NAME2 "/tmp/bar.sem"
michael@0: #endif
michael@0: #define ITERATIONS 1000
michael@0: 
michael@0: static PRBool debug_mode = PR_FALSE;
michael@0: static PRIntn iterations = ITERATIONS;
michael@0: static PRSem *sem1, *sem2;
michael@0: 
michael@0: static void Help(void)
michael@0: {
michael@0:     fprintf(stderr, "semapong test program usage:\n");
michael@0:     fprintf(stderr, "\t-d           debug mode         (FALSE)\n");
michael@0:     fprintf(stderr, "\t-c <count>   loop count         (%d)\n", ITERATIONS);
michael@0:     fprintf(stderr, "\t-h           this message\n");
michael@0: }  /* Help */
michael@0: 
michael@0: int main(int argc, char **argv)
michael@0: {
michael@0:     PRIntn i;
michael@0:     PRSharedMemory *shm;
michael@0:     PRIntn *counter_addr;
michael@0:     PLOptStatus os;
michael@0:     PLOptState *opt = PL_CreateOptState(argc, argv, "dc:h");
michael@0: 
michael@0:     while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) {
michael@0:         if (PL_OPT_BAD == os) continue;
michael@0:         switch (opt->option) {
michael@0:             case 'd':  /* debug mode */
michael@0:                 debug_mode = PR_TRUE;
michael@0:                 break;
michael@0:             case 'c':  /* loop count */
michael@0:                 iterations = atoi(opt->value);
michael@0:                 break;
michael@0:             case 'h':
michael@0:             default:
michael@0:                 Help();
michael@0:                 return 2;
michael@0:         }
michael@0:     }
michael@0:     PL_DestroyOptState(opt);
michael@0: 
michael@0:     shm = PR_OpenSharedMemory(SHM_NAME, sizeof(*counter_addr), 0, 0666);
michael@0:     if (NULL == shm) {
michael@0:         fprintf(stderr, "PR_OpenSharedMemory failed (%d, %d)\n",
michael@0:                 PR_GetError(), PR_GetOSError());
michael@0:         exit(1);
michael@0:     }
michael@0:     sem1 = PR_OpenSemaphore(SEM_NAME1, 0, 0, 0);
michael@0:     if (NULL == sem1) {
michael@0:         fprintf(stderr, "PR_OpenSemaphore failed (%d, %d)\n",
michael@0:                 PR_GetError(), PR_GetOSError());
michael@0:         exit(1);
michael@0:     }
michael@0:     sem2 = PR_OpenSemaphore(SEM_NAME2, 0, 0, 0);
michael@0:     if (NULL == sem2) {
michael@0:         fprintf(stderr, "PR_OpenSemaphore failed (%d, %d)\n",
michael@0:                 PR_GetError(), PR_GetOSError());
michael@0:         exit(1);
michael@0:     }
michael@0: 
michael@0:     counter_addr = PR_AttachSharedMemory(shm, 0);
michael@0:     if (NULL == counter_addr) {
michael@0:         fprintf(stderr, "PR_AttachSharedMemory failed\n");
michael@0:         exit(1);
michael@0:     }
michael@0: 
michael@0:     /*
michael@0:      * Process 2 waits on semaphore 2 and posts to semaphore 1.
michael@0:      */
michael@0:     for (i = 0; i < iterations; i++) {
michael@0:         if (PR_WaitSemaphore(sem2) == PR_FAILURE) {
michael@0:             fprintf(stderr, "PR_WaitSemaphore failed\n");
michael@0:             exit(1);
michael@0:         }
michael@0:         if (*counter_addr == 2*i+1) {
michael@0:             if (debug_mode) printf("process 2: counter = %d\n", *counter_addr);
michael@0:         } else {
michael@0:             fprintf(stderr, "process 2: counter should be %d but is %d\n",
michael@0:                     2*i+1, *counter_addr);
michael@0:             exit(1);
michael@0:         }
michael@0:         (*counter_addr)++;
michael@0:         if (PR_PostSemaphore(sem1) == PR_FAILURE) {
michael@0:             fprintf(stderr, "PR_PostSemaphore failed\n");
michael@0:             exit(1);
michael@0:         }
michael@0:     }
michael@0:     if (PR_DetachSharedMemory(shm, counter_addr) == PR_FAILURE) {
michael@0:         fprintf(stderr, "PR_DetachSharedMemory failed\n");
michael@0:         exit(1);
michael@0:     }
michael@0:     if (PR_CloseSharedMemory(shm) == PR_FAILURE) {
michael@0:         fprintf(stderr, "PR_CloseSharedMemory failed\n");
michael@0:         exit(1);
michael@0:     }
michael@0:     if (PR_CloseSemaphore(sem1) == PR_FAILURE) {
michael@0:         fprintf(stderr, "PR_CloseSemaphore failed\n");
michael@0:     }
michael@0:     if (PR_CloseSemaphore(sem2) == PR_FAILURE) {
michael@0:         fprintf(stderr, "PR_CloseSemaphore failed\n");
michael@0:     }
michael@0:     printf("PASS\n");
michael@0:     return 0;
michael@0: }