summaryrefslogtreecommitdiffstats
path: root/nsprpub/pr/tests/rwlocktest.c
diff options
context:
space:
mode:
Diffstat (limited to 'nsprpub/pr/tests/rwlocktest.c')
-rw-r--r--nsprpub/pr/tests/rwlocktest.c288
1 files changed, 146 insertions, 142 deletions
diff --git a/nsprpub/pr/tests/rwlocktest.c b/nsprpub/pr/tests/rwlocktest.c
index d9368a4cd..396103c34 100644
--- a/nsprpub/pr/tests/rwlocktest.c
+++ b/nsprpub/pr/tests/rwlocktest.c
@@ -7,17 +7,17 @@
*
* RWLock tests
*
- * Several threads are created to access and modify data arrays using
- * PRRWLocks for synchronization. Two data arrays, array_A and array_B, are
- * initialized with random data and a third array, array_C, is initialized
- * with the sum of the first 2 arrays.
+ * Several threads are created to access and modify data arrays using
+ * PRRWLocks for synchronization. Two data arrays, array_A and array_B, are
+ * initialized with random data and a third array, array_C, is initialized
+ * with the sum of the first 2 arrays.
+ *
+ * Each one of the threads acquires a read lock to verify that the sum of
+ * the arrays A and B is equal to array C, and acquires a write lock to
+ * consistently update arrays A and B so that their is equal to array C.
*
- * Each one of the threads acquires a read lock to verify that the sum of
- * the arrays A and B is equal to array C, and acquires a write lock to
- * consistently update arrays A and B so that their is equal to array C.
- *
*/
-
+
#include "nspr.h"
#include "plgetopt.h"
#include "prrwlock.h"
@@ -29,181 +29,185 @@ static void update_array(void);
static void check_array(void);
typedef struct thread_args {
- PRRWLock *rwlock;
- PRInt32 loop_cnt;
+ PRRWLock *rwlock;
+ PRInt32 loop_cnt;
} thread_args;
PRFileDesc *output;
PRFileDesc *errhandle;
-#define DEFAULT_THREAD_CNT 4
-#define DEFAULT_LOOP_CNT 100
-#define TEST_ARRAY_SIZE 100
+#define DEFAULT_THREAD_CNT 4
+#define DEFAULT_LOOP_CNT 100
+#define TEST_ARRAY_SIZE 100
int main(int argc, char **argv)
{
PRInt32 cnt;
- PRStatus rc;
- PRInt32 i;
+ PRStatus rc;
+ PRInt32 i;
- PRInt32 thread_cnt = DEFAULT_THREAD_CNT;
- PRInt32 loop_cnt = DEFAULT_LOOP_CNT;
- PRThread **threads;
- thread_args *params;
- PRRWLock *rwlock1;
+ PRInt32 thread_cnt = DEFAULT_THREAD_CNT;
+ PRInt32 loop_cnt = DEFAULT_LOOP_CNT;
+ PRThread **threads;
+ thread_args *params;
+ PRRWLock *rwlock1;
- PLOptStatus os;
- PLOptState *opt = PL_CreateOptState(argc, argv, "dt:c:");
+ PLOptStatus os;
+ PLOptState *opt = PL_CreateOptState(argc, argv, "dt:c:");
- while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
+ while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
{
- if (PL_OPT_BAD == os) continue;
+ if (PL_OPT_BAD == os) {
+ continue;
+ }
switch (opt->option)
{
- case 'd': /* debug mode */
- _debug_on = 1;
- break;
- case 't': /* thread count */
- thread_cnt = atoi(opt->value);
- break;
- case 'c': /* loop count */
- loop_cnt = atoi(opt->value);
- break;
- default:
- break;
+ case 'd': /* debug mode */
+ _debug_on = 1;
+ break;
+ case 't': /* thread count */
+ thread_cnt = atoi(opt->value);
+ break;
+ case 'c': /* loop count */
+ loop_cnt = atoi(opt->value);
+ break;
+ default:
+ break;
}
}
- PL_DestroyOptState(opt);
+ PL_DestroyOptState(opt);
- PR_SetConcurrency(4);
+ PR_SetConcurrency(4);
output = PR_GetSpecialFD(PR_StandardOutput);
errhandle = PR_GetSpecialFD(PR_StandardError);
- rwlock1 = PR_NewRWLock(0,"Lock 1");
- if (rwlock1 == NULL) {
- PR_fprintf(errhandle, "PR_NewRWLock failed - error %d\n",
- PR_GetError());
- return 1;
- }
-
- threads = (PRThread**) PR_CALLOC(sizeof(PRThread*) * thread_cnt);
- params = (thread_args *) PR_CALLOC(sizeof(thread_args) * thread_cnt);
-
- /*
- * allocate and initialize data arrays
- */
- array_A =(PRInt32 *) PR_MALLOC(sizeof(PRInt32) * TEST_ARRAY_SIZE);
- array_B =(PRInt32 *) PR_MALLOC(sizeof(PRInt32) * TEST_ARRAY_SIZE);
- array_C =(PRInt32 *) PR_MALLOC(sizeof(PRInt32) * TEST_ARRAY_SIZE);
- cnt = 0;
- for (i=0; i < TEST_ARRAY_SIZE;i++) {
- array_A[i] = cnt++;
- array_B[i] = cnt++;
- array_C[i] = array_A[i] + array_B[i];
- }
-
- if (_debug_on)
- PR_fprintf(output,"%s: thread_cnt = %d loop_cnt = %d\n", argv[0],
- thread_cnt, loop_cnt);
- for(cnt = 0; cnt < thread_cnt; cnt++) {
- PRThreadScope scope;
-
- params[cnt].rwlock = rwlock1;
- params[cnt].loop_cnt = loop_cnt;
-
- /*
- * create LOCAL and GLOBAL threads alternately
- */
- if (cnt & 1)
- scope = PR_LOCAL_THREAD;
- else
- scope = PR_GLOBAL_THREAD;
-
- threads[cnt] = PR_CreateThread(PR_USER_THREAD,
- rwtest, &params[cnt],
- PR_PRIORITY_NORMAL,
- scope,
- PR_JOINABLE_THREAD,
- 0);
- if (threads[cnt] == NULL) {
- PR_fprintf(errhandle, "PR_CreateThread failed - error %d\n",
- PR_GetError());
- PR_ProcessExit(2);
- }
- if (_debug_on)
- PR_fprintf(output,"%s: created thread = %p\n", argv[0],
- threads[cnt]);
- }
-
- for(cnt = 0; cnt < thread_cnt; cnt++) {
- rc = PR_JoinThread(threads[cnt]);
- PR_ASSERT(rc == PR_SUCCESS);
-
- }
-
- PR_DELETE(threads);
- PR_DELETE(params);
-
- PR_DELETE(array_A);
- PR_DELETE(array_B);
- PR_DELETE(array_C);
-
- PR_DestroyRWLock(rwlock1);
-
-
- printf("PASS\n");
- return 0;
+ rwlock1 = PR_NewRWLock(0,"Lock 1");
+ if (rwlock1 == NULL) {
+ PR_fprintf(errhandle, "PR_NewRWLock failed - error %d\n",
+ PR_GetError());
+ return 1;
+ }
+
+ threads = (PRThread**) PR_CALLOC(sizeof(PRThread*) * thread_cnt);
+ params = (thread_args *) PR_CALLOC(sizeof(thread_args) * thread_cnt);
+
+ /*
+ * allocate and initialize data arrays
+ */
+ array_A =(PRInt32 *) PR_MALLOC(sizeof(PRInt32) * TEST_ARRAY_SIZE);
+ array_B =(PRInt32 *) PR_MALLOC(sizeof(PRInt32) * TEST_ARRAY_SIZE);
+ array_C =(PRInt32 *) PR_MALLOC(sizeof(PRInt32) * TEST_ARRAY_SIZE);
+ cnt = 0;
+ for (i=0; i < TEST_ARRAY_SIZE; i++) {
+ array_A[i] = cnt++;
+ array_B[i] = cnt++;
+ array_C[i] = array_A[i] + array_B[i];
+ }
+
+ if (_debug_on)
+ PR_fprintf(output,"%s: thread_cnt = %d loop_cnt = %d\n", argv[0],
+ thread_cnt, loop_cnt);
+ for(cnt = 0; cnt < thread_cnt; cnt++) {
+ PRThreadScope scope;
+
+ params[cnt].rwlock = rwlock1;
+ params[cnt].loop_cnt = loop_cnt;
+
+ /*
+ * create LOCAL and GLOBAL threads alternately
+ */
+ if (cnt & 1) {
+ scope = PR_LOCAL_THREAD;
+ }
+ else {
+ scope = PR_GLOBAL_THREAD;
+ }
+
+ threads[cnt] = PR_CreateThread(PR_USER_THREAD,
+ rwtest, &params[cnt],
+ PR_PRIORITY_NORMAL,
+ scope,
+ PR_JOINABLE_THREAD,
+ 0);
+ if (threads[cnt] == NULL) {
+ PR_fprintf(errhandle, "PR_CreateThread failed - error %d\n",
+ PR_GetError());
+ PR_ProcessExit(2);
+ }
+ if (_debug_on)
+ PR_fprintf(output,"%s: created thread = %p\n", argv[0],
+ threads[cnt]);
+ }
+
+ for(cnt = 0; cnt < thread_cnt; cnt++) {
+ rc = PR_JoinThread(threads[cnt]);
+ PR_ASSERT(rc == PR_SUCCESS);
+
+ }
+
+ PR_DELETE(threads);
+ PR_DELETE(params);
+
+ PR_DELETE(array_A);
+ PR_DELETE(array_B);
+ PR_DELETE(array_C);
+
+ PR_DestroyRWLock(rwlock1);
+
+
+ printf("PASS\n");
+ return 0;
}
static void rwtest(void *args)
{
PRInt32 index;
- thread_args *arg = (thread_args *) args;
+ thread_args *arg = (thread_args *) args;
- for (index = 0; index < arg->loop_cnt; index++) {
+ for (index = 0; index < arg->loop_cnt; index++) {
- /*
- * verify sum, update arrays and verify sum again
- */
+ /*
+ * verify sum, update arrays and verify sum again
+ */
- PR_RWLock_Rlock(arg->rwlock);
- check_array();
- PR_RWLock_Unlock(arg->rwlock);
+ PR_RWLock_Rlock(arg->rwlock);
+ check_array();
+ PR_RWLock_Unlock(arg->rwlock);
- PR_RWLock_Wlock(arg->rwlock);
- update_array();
- PR_RWLock_Unlock(arg->rwlock);
+ PR_RWLock_Wlock(arg->rwlock);
+ update_array();
+ PR_RWLock_Unlock(arg->rwlock);
- PR_RWLock_Rlock(arg->rwlock);
- check_array();
- PR_RWLock_Unlock(arg->rwlock);
- }
- if (_debug_on)
- PR_fprintf(output,
- "Thread[0x%x] lock = 0x%x exiting\n",
- PR_GetCurrentThread(), arg->rwlock);
+ PR_RWLock_Rlock(arg->rwlock);
+ check_array();
+ PR_RWLock_Unlock(arg->rwlock);
+ }
+ if (_debug_on)
+ PR_fprintf(output,
+ "Thread[0x%x] lock = 0x%x exiting\n",
+ PR_GetCurrentThread(), arg->rwlock);
}
static void check_array(void)
{
-PRInt32 i;
+ PRInt32 i;
- for (i=0; i < TEST_ARRAY_SIZE;i++)
- if (array_C[i] != (array_A[i] + array_B[i])) {
- PR_fprintf(output, "Error - data check failed\n");
- PR_ProcessExit(1);
- }
+ for (i=0; i < TEST_ARRAY_SIZE; i++)
+ if (array_C[i] != (array_A[i] + array_B[i])) {
+ PR_fprintf(output, "Error - data check failed\n");
+ PR_ProcessExit(1);
+ }
}
static void update_array(void)
{
-PRInt32 i;
+ PRInt32 i;
- for (i=0; i < TEST_ARRAY_SIZE;i++) {
- array_A[i] += i;
- array_B[i] -= i;
- }
+ for (i=0; i < TEST_ARRAY_SIZE; i++) {
+ array_A[i] += i;
+ array_B[i] -= i;
+ }
}