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-rw-r--r--nsprpub/pr/tests/many_cv.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/many_cv.c b/nsprpub/pr/tests/many_cv.c
new file mode 100644
index 0000000000..8444c99576
--- /dev/null
+++ b/nsprpub/pr/tests/many_cv.c
@@ -0,0 +1,124 @@
+/* -*- 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 "prinit.h"
+#include "prprf.h"
+#include "prthread.h"
+#include "prcvar.h"
+#include "prlock.h"
+#include "prlog.h"
+#include "prmem.h"
+
+#include "primpl.h"
+
+#include "plgetopt.h"
+
+#include <stdlib.h>
+
+static PRInt32 RandomNum(void)
+{
+ PRInt32 ran = rand() >> 16;
+ return ran;
+} /* RandomNum */
+
+static void Help(void)
+{
+ PRFileDesc *err = PR_GetSpecialFD(PR_StandardError);
+ PR_fprintf(err, "many_cv usage: [-c n] [-l n] [-h]\n");
+ PR_fprintf(err, "\t-c n Number of conditions per lock (default: 10)\n");
+ PR_fprintf(err, "\t-l n Number of times to loop the test (default: 1)\n");
+ PR_fprintf(err, "\t-h This message and nothing else\n");
+} /* Help */
+
+static PRIntn PR_CALLBACK RealMain( PRIntn argc, char **argv )
+{
+ PLOptStatus os;
+ PRIntn index, nl;
+ PRLock *ml = NULL;
+ PRCondVar **cv = NULL;
+ PRBool stats = PR_FALSE;
+ PRIntn nc, loops = 1, cvs = 10;
+ PRFileDesc *err = PR_GetSpecialFD(PR_StandardError);
+ PLOptState *opt = PL_CreateOptState(argc, argv, "hsc:l:");
+
+ while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
+ {
+ if (PL_OPT_BAD == os) {
+ continue;
+ }
+ switch (opt->option)
+ {
+ case 's': /* number of CVs to association with lock */
+ stats = PR_TRUE;
+ break;
+ case 'c': /* number of CVs to association with lock */
+ cvs = atoi(opt->value);
+ break;
+ case 'l': /* number of times to run the tests */
+ loops = atoi(opt->value);
+ break;
+ case 'h': /* user wants some guidance */
+ default:
+ Help(); /* so give him an earful */
+ return 2; /* but not a lot else */
+ }
+ }
+ PL_DestroyOptState(opt);
+
+ PR_fprintf(err, "Settings\n");
+ PR_fprintf(err, "\tConditions / lock: %d\n", cvs);
+ PR_fprintf(err, "\tLoops to run test: %d\n", loops);
+
+ ml = PR_NewLock();
+ PR_ASSERT(NULL != ml);
+
+ cv = (PRCondVar**)PR_CALLOC(sizeof(PRCondVar*) * cvs);
+ PR_ASSERT(NULL != cv);
+
+ for (index = 0; index < cvs; ++index)
+ {
+ cv[index] = PR_NewCondVar(ml);
+ PR_ASSERT(NULL != cv[index]);
+ }
+
+ for (index = 0; index < loops; ++index)
+ {
+ PR_Lock(ml);
+ for (nl = 0; nl < cvs; ++nl)
+ {
+ PRInt32 ran = RandomNum() % 8;
+ if (0 == ran) {
+ PR_NotifyAllCondVar(cv[nl]);
+ }
+ else for (nc = 0; nc < ran; ++nc) {
+ PR_NotifyCondVar(cv[nl]);
+ }
+ }
+ PR_Unlock(ml);
+ }
+
+ for (index = 0; index < cvs; ++index) {
+ PR_DestroyCondVar(cv[index]);
+ }
+
+ PR_DELETE(cv);
+
+ PR_DestroyLock(ml);
+
+ printf("PASS\n");
+
+ PT_FPrintStats(err, "\nPThread Statistics\n");
+ return 0;
+}
+
+
+int main(int argc, char **argv)
+{
+ PRIntn rv;
+
+ PR_STDIO_INIT();
+ rv = PR_Initialize(RealMain, argc, argv, 0);
+ return rv;
+} /* main */