From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 nsprpub/pr/tests/concur.c | 157 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 157 insertions(+)
 create mode 100644 nsprpub/pr/tests/concur.c

(limited to 'nsprpub/pr/tests/concur.c')

diff --git a/nsprpub/pr/tests/concur.c b/nsprpub/pr/tests/concur.c
new file mode 100644
index 000000000..108f90668
--- /dev/null
+++ b/nsprpub/pr/tests/concur.c
@@ -0,0 +1,157 @@
+/* -*- 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/. */
+
+/*
+** File:            concur.c 
+** Description:     test of adding and removing concurrency options
+*/
+
+#include "prcvar.h"
+#include "prinit.h"
+#include "prinrval.h"
+#include "prlock.h"
+#include "prprf.h"
+#include "prmem.h"
+#include "prlog.h"
+
+#include "plgetopt.h"
+
+#include "private/pprio.h"
+
+#include <stdlib.h>
+
+#define DEFAULT_RANGE 10
+#define DEFAULT_LOOPS 100
+
+static PRThreadScope thread_scope = PR_LOCAL_THREAD;
+
+typedef struct Context
+{
+    PRLock *ml;
+    PRCondVar *cv;
+    PRIntn want, have;
+} Context;
+
+
+/*
+** Make the instance of 'context' static (not on the stack)
+** for Win16 threads
+*/
+static Context context = {NULL, NULL, 0, 0};
+
+static void PR_CALLBACK Dull(void *arg)
+{
+    Context *context = (Context*)arg;
+    PR_Lock(context->ml);
+    context->have += 1;
+    while (context->want >= context->have)
+        PR_WaitCondVar(context->cv, PR_INTERVAL_NO_TIMEOUT);
+    context->have -= 1;
+    PR_Unlock(context->ml);
+}  /* Dull */
+
+PRIntn PR_CALLBACK Concur(PRIntn argc, char **argv)
+{
+    PRUintn cpus;
+	PLOptStatus os;
+	PRThread **threads;
+    PRBool debug = PR_FALSE;
+    PRUintn range = DEFAULT_RANGE;
+	PRStatus rc;
+    PRUintn cnt;
+    PRUintn loops = DEFAULT_LOOPS;
+	PRIntervalTime hundredMills = PR_MillisecondsToInterval(100);
+	PLOptState *opt = PL_CreateOptState(argc, argv, "Gdl:r:");
+	while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
+    {
+		if (PL_OPT_BAD == os) continue;
+        switch (opt->option)
+        {
+        case 'G':  /* GLOBAL threads */
+			thread_scope = PR_GLOBAL_THREAD;
+            break;
+        case 'd':  /* debug mode */
+			debug = PR_TRUE;
+            break;
+        case 'r':  /* range limit */
+			range = atoi(opt->value);
+            break;
+        case 'l':  /* loop counter */
+			loops = atoi(opt->value);
+            break;
+         default:
+            break;
+        }
+    }
+	PL_DestroyOptState(opt);
+
+    if (0 == range) range = DEFAULT_RANGE;
+    if (0 == loops) loops = DEFAULT_LOOPS;
+
+    context.ml = PR_NewLock();
+    context.cv = PR_NewCondVar(context.ml);
+
+    if (debug)
+        PR_fprintf(
+            PR_STDERR, "Testing with %d CPUs and %d interations\n", range, loops);
+
+	threads = (PRThread**) PR_CALLOC(sizeof(PRThread*) * range);
+    while (--loops > 0)
+    {
+        for (cpus = 1; cpus <= range; ++cpus)
+        {
+            PR_SetConcurrency(cpus);
+            context.want = cpus;
+
+            threads[cpus - 1] = PR_CreateThread(
+                PR_USER_THREAD, Dull, &context, PR_PRIORITY_NORMAL,
+				      thread_scope, PR_JOINABLE_THREAD, 0);
+        }
+
+        PR_Sleep(hundredMills);
+
+        for (cpus = range; cpus > 0; cpus--)
+        {
+            PR_SetConcurrency(cpus);
+            context.want = cpus - 1;
+
+            PR_Lock(context.ml);
+            PR_NotifyCondVar(context.cv);
+            PR_Unlock(context.ml);
+        }
+		for(cnt = 0; cnt < range; cnt++) {
+			rc = PR_JoinThread(threads[cnt]);
+			PR_ASSERT(rc == PR_SUCCESS);
+		}
+    }
+
+    
+    if (debug)
+        PR_fprintf(
+            PR_STDERR, "Waiting for %d thread(s) to exit\n", context.have);
+
+    while (context.have > 0) PR_Sleep(hundredMills);
+
+    if (debug)
+        PR_fprintf(
+            PR_STDERR, "Finished [want: %d, have: %d]\n",
+            context.want, context.have);
+
+    PR_DestroyLock(context.ml);
+    PR_DestroyCondVar(context.cv);
+    PR_DELETE(threads);
+
+    PR_fprintf(PR_STDERR, "PASSED\n");
+
+    return 0;
+} /* Concur */
+
+int main(int argc, char **argv)
+{
+    PR_STDIO_INIT();
+    return PR_Initialize(Concur, argc, argv, 0);
+}  /* main */
+
+/* concur.c */
-- 
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