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 */