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/* 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/. */
/*
* test_rwlock.c
*
*/
#include "testutil.h"
#include "testutil_nss.h"
static PKIX_PL_RWLock *rwlock = NULL, *rwlock2 = NULL, *rwlock3 = NULL;
static PRThread *thread = NULL, *thread2 = NULL, *thread3 = NULL;
static void *plContext = NULL;
static void
reader(void)
{
PKIX_Error *errorResult;
errorResult = PKIX_PL_AcquireReaderLock(rwlock, NULL);
if (errorResult)
testError("PKIX_PL_AcquireReaderLock failed");
(void)printf("\t[Thread #1 Read Lock #1.]\n");
(void)printf("\t[Thread #1 Sleeplng for 1 seconds.]\n");
PR_Sleep(PR_SecondsToInterval(1));
PKIX_PL_ReleaseReaderLock(rwlock, NULL);
if (errorResult)
testError("PKIX_PL_ReleaseReaderLock failed");
(void)printf("\t[Thread #1 Read UNLock #1.]\n");
}
static void
writer(void)
{
PKIX_Error *errorResult;
/* This thread should stick here until lock 1 is released */
PKIX_PL_AcquireWriterLock(rwlock, NULL);
if (errorResult)
testError("PKIX_PL_AcquireWriterLock failed");
(void)printf("\t[Thread #2 Write Lock #1.]\n");
PKIX_PL_AcquireWriterLock(rwlock2, NULL);
if (errorResult)
testError("PKIX_PL_AcquireWriterLock failed");
(void)printf("\t[Thread #2 Write Lock #2.]\n");
(void)printf("\t[Thread #2 Sleeplng for 1 seconds.]\n");
PR_Sleep(PR_SecondsToInterval(1));
PKIX_PL_ReleaseWriterLock(rwlock2, NULL);
if (errorResult)
testError("PKIX_PL_ReleaseWriterLock failed");
(void)printf("\t[Thread #2 Write UNLock #2.]\n");
(void)printf("\t[Thread #2 Sleeplng for 1 seconds.]\n");
PR_Sleep(PR_SecondsToInterval(1));
PKIX_PL_ReleaseWriterLock(rwlock, NULL);
if (errorResult)
testError("PKIX_PL_ReleaseWriterLock failed");
(void)printf("\t[Thread #2 Write UNLock #1.]\n");
PR_JoinThread(thread3);
}
static void
reader2(void)
{
PKIX_Error *errorResult;
/* Reader 2 should yield here until the writer is done */
PKIX_PL_AcquireReaderLock(rwlock2, NULL);
if (errorResult)
testError("PKIX_PL_AcquireReaderLock failed");
(void)printf("\t[Thread #3 Read Lock #2.]\n");
PKIX_PL_AcquireReaderLock(rwlock3, NULL);
if (errorResult)
testError("PKIX_PL_AcquireReaderLock failed");
(void)printf("\t[Thread #3 Read Lock #3.]\n");
(void)printf("\t[Thread #3 Sleeplng for 1 seconds.]\n");
PR_Sleep(PR_SecondsToInterval(1));
PKIX_PL_ReleaseReaderLock(rwlock3, NULL);
if (errorResult)
testError("PKIX_PL_ReleaseReaderLock failed");
(void)printf("\t[Thread #3 Read UNLock #3.]\n");
(void)printf("\t[Thread #3 Sleeplng for 1 seconds.]\n");
PR_Sleep(PR_SecondsToInterval(1));
PKIX_PL_ReleaseReaderLock(rwlock2, NULL);
if (errorResult)
testError("PKIX_PL_ReleaseReaderLock failed");
(void)printf("\t[Thread #3 Read UNLock #2.]\n");
}
int
test_rwlock()
{
PKIX_PL_String *outputString = NULL;
PKIX_UInt32 j = 0;
PKIX_Boolean bool;
PKIX_UInt32 actualMinorVersion;
PKIX_TEST_STD_VARS();
startTests("RWLocks");
PKIX_TEST_EXPECT_NO_ERROR(
PKIX_PL_NssContext_Create(0, PKIX_FALSE, NULL, &plContext));
(void)printf("Attempting to create new rwlock...\n");
PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_RWLock_Create(&rwlock, plContext));
PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_RWLock_Create(&rwlock2, plContext));
PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_RWLock_Create(&rwlock3, plContext));
/* Test toString functionality */
PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_Object_ToString((PKIX_PL_Object *)rwlock, &outputString, plContext));
(void)printf("Testing RWLock toString: %s\n",
PKIX_String2ASCII(outputString));
PKIX_TEST_DECREF_BC(outputString);
/* Call Equals on two different objects */
PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_Object_Equals((PKIX_PL_Object *)rwlock,
(PKIX_PL_Object *)rwlock2,
&bool,
plContext));
(void)printf("Testing RWLock Equals: %d (should be 0)\n", bool);
if (bool != 0)
testError("Error in RWLock_Equals");
/* Call Equals on two equal objects */
PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_Object_Equals((PKIX_PL_Object *)rwlock,
(PKIX_PL_Object *)rwlock, &bool, plContext));
(void)printf("Testing RWLock Equals: %d (should be 1)\n", bool);
if (bool != 1)
testError("Error in RWLock_Equals");
subTest("Multi-Thread Read/Write Lock Testing");
PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_AcquireReaderLock(rwlock, plContext));
(void)printf("\t[Main Thread Read Lock #1.]\n");
thread = PR_CreateThread(PR_USER_THREAD,
reader,
NULL,
PR_PRIORITY_NORMAL,
PR_LOCAL_THREAD,
PR_JOINABLE_THREAD,
0);
thread2 = PR_CreateThread(PR_USER_THREAD,
writer,
NULL,
PR_PRIORITY_NORMAL,
PR_LOCAL_THREAD,
PR_JOINABLE_THREAD,
0);
thread3 = PR_CreateThread(PR_USER_THREAD,
reader2,
NULL,
PR_PRIORITY_NORMAL,
PR_LOCAL_THREAD,
PR_JOINABLE_THREAD,
0);
PR_JoinThread(thread);
PKIX_TEST_EXPECT_NO_ERROR(PKIX_PL_ReleaseReaderLock(rwlock, plContext));
(void)printf("\t[Main Thread Read Unlock #1.]\n");
PR_JoinThread(thread2);
cleanup:
/* Test destructor */
subTest("Testing destructor...");
PKIX_TEST_DECREF_AC(rwlock);
PKIX_TEST_DECREF_AC(rwlock2);
PKIX_TEST_DECREF_AC(rwlock3);
pkixTestTempResult = PKIX_Shutdown(plContext);
if (pkixTestTempResult)
pkixTestErrorResult = pkixTestTempResult;
PKIX_TEST_RETURN();
endTests("RWLocks");
return (0);
}