cp_pooled_thread *cp_pooled_thread_create(cp_thread_pool *owner) { int rc; cp_pooled_thread *pt = calloc(1, sizeof(cp_pooled_thread)); if (pt == NULL) { cp_error(CP_MEMORY_ALLOCATION_FAILURE, "can\'t allocate pooled thread"); errno = ENOMEM; return NULL; } pt->worker = calloc(1, sizeof(cp_thread)); if (pt->worker == NULL) { cp_error(CP_MEMORY_ALLOCATION_FAILURE, "can\'t allocate thread"); errno = ENOMEM; return NULL; } pt->owner = owner; pt->suspend_lock = (cp_mutex *) malloc(sizeof(cp_mutex)); if (pt->suspend_lock == NULL) goto THREAD_CREATE_CANCEL; if ((rc = cp_mutex_init(pt->suspend_lock, NULL))) { cp_error(rc, "starting up pooled thread"); goto THREAD_CREATE_CANCEL; } pt->suspend_cond = (cp_cond *) malloc(sizeof(cp_cond)); if ((rc = cp_cond_init(pt->suspend_cond, NULL))) { cp_error(rc, "starting up pooled thread"); cp_mutex_destroy(pt->suspend_lock); free(pt->suspend_lock); goto THREAD_CREATE_CANCEL; } pt->done = 0; pt->wait = 1; cp_thread_create(*pt->worker, NULL, cp_pooled_thread_run, pt); pt->id = cp_pooled_thread_get_id(pt); cp_thread_detach(*pt->worker); //~~ check return pt; THREAD_CREATE_CANCEL: free(pt->worker); free(pt); return NULL; }
int main(int argc, char *argv[]) { int i; cp_thread w[COUNT]; cp_thread r[COUNT]; long total; int rc; if (argc > 1) silent = atoi(argv[1]); for (i = 0; i < COUNT; i++) { rc = cp_mutex_init(&lock[i], NULL); cp_cond_init(&cond[i], NULL); t[i] = cp_hashtable_create(10, cp_hash_string, cp_hash_compare_string); tl[i] = cp_list_create(); } rc = cp_mutex_init(&start_mutex, NULL); cp_cond_init(&start_cond, NULL); for (i = 0; i < COUNT; i++) cp_thread_create(r[i], NULL, reader, (void *) i); for (i = 0; i < COUNT; i++) cp_thread_create(w[i], NULL, writer, (void *) INSERTS); printf("press enter\n"); getchar(); cp_mutex_lock(&start_mutex); running = 1; total = time(NULL); cp_cond_broadcast(&start_cond); rc = cp_mutex_unlock(&start_mutex); if (rc == 0) write_err("MAIN"); for (i = 0; i < COUNT; i++) cp_thread_join(w[i], NULL); running = 0; for (i = 0; i < COUNT; i++) { cp_mutex_lock(&lock[i]); cp_cond_broadcast(&cond[i]); cp_mutex_unlock(&lock[i]); cp_thread_join(r[i], NULL); } total = time(NULL) - total; printf("\ndone in %ld seconds. tables should be empty now. press enter.\n", total); getchar(); for (i = 0; i < COUNT; i++) { printf("table %d: %ld items\n", i, cp_hashtable_count(t[i])); cp_hashtable_destroy(t[i]); printf("list %d: %ld items\n", i, cp_list_item_count(tl[i])); while (cp_list_item_count(tl[i])) { char *leftover = cp_list_remove_head(tl[i]); printf(" * %s\n", leftover); } cp_list_destroy(tl[i]); } printf("deleted them tables. press enter.\n"); getchar(); printf("bye.\n"); return 0; }