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/sem.c | 209 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 209 insertions(+)
 create mode 100644 nsprpub/pr/tests/sem.c

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

diff --git a/nsprpub/pr/tests/sem.c b/nsprpub/pr/tests/sem.c
new file mode 100644
index 000000000..ec7bb6e2c
--- /dev/null
+++ b/nsprpub/pr/tests/sem.c
@@ -0,0 +1,209 @@
+/* -*- 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/. */
+
+/***********************************************************************
+**
+** Name: sem.c
+**
+** Description: Tests Semaphonre functions.
+**
+** Modification History:
+** 20-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
+**	         The debug mode will print all of the printfs associated with this test.
+**			 The regress mode will be the default mode. Since the regress tool limits
+**           the output to a one line status:PASS or FAIL,all of the printf statements
+**			 have been handled with an if (debug_mode) statement.
+** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to
+**			recognize the return code from tha main program.
+***********************************************************************/
+
+/***********************************************************************
+** Includes
+***********************************************************************/
+/* Used to get the command line option */
+#include "plgetopt.h"
+
+#include "nspr.h"
+#include "prpriv.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+PRIntn failed_already=0;
+PRIntn debug_mode;
+
+/* 
+	Since we don't have stdin, stdout everywhere, we will fake 
+	it with our in-memory buffers called stdin and stdout.
+*/
+
+#define SBSIZE 1024
+
+#include "obsolete/prsem.h"
+
+static char stdinBuf[SBSIZE];
+static char stdoutBuf[SBSIZE];
+
+static PRUintn stdinBufIdx = 0;
+static PRUintn stdoutBufIdx = 0;
+static PRStatus finalResult = PR_SUCCESS;
+
+
+static size_t dread (PRUintn device, char *buf, size_t bufSize)
+{
+	PRUintn	i;
+	
+	/* during first read call, initialize the stdinBuf buffer*/
+	if (stdinBufIdx == 0) {
+		for (i=0; i<SBSIZE; i++)
+			stdinBuf[i] = i;
+	}
+
+	/* now copy data from stdinBuf to the given buffer upto bufSize */
+	for (i=0; i<bufSize; i++) {
+		if (stdinBufIdx == SBSIZE)
+			break;
+		buf[i] = stdinBuf[stdinBufIdx++];
+	}
+
+	return i;
+}
+
+static size_t dwrite (PRUintn device, char *buf, size_t bufSize)
+{
+	PRUintn	i, j;
+	
+	/* copy data from the given buffer upto bufSize to stdoutBuf */
+	for (i=0; i<bufSize; i++) {
+		if (stdoutBufIdx == SBSIZE)
+			break;
+		stdoutBuf[stdoutBufIdx++] = buf[i];
+	}
+
+	/* during last write call, compare the two buffers */
+	if (stdoutBufIdx == SBSIZE)
+		for (j=0; j<SBSIZE; j++)
+			if (stdinBuf[j] != stdoutBuf[j]) {
+				if (debug_mode) printf("data mismatch for index= %d \n", j);
+				finalResult = PR_FAILURE;
+			}
+
+	return i;
+}
+
+/*------------------ Following is the real test program ---------*/
+/*
+	Program to copy standard input to standard output.  The program
+	uses two threads.  One reads the input and puts the data in a 
+	double buffer.  The other reads the buffer contents and writes 
+	it to standard output.
+*/
+
+PRSemaphore	*emptyBufs;	/* number of empty buffers */
+PRSemaphore *fullBufs;	/* number of buffers that are full */
+
+#define BSIZE	100
+
+struct {
+	char data[BSIZE];
+	PRUintn nbytes;		/* number of bytes in this buffer */
+} buf[2];
+
+static void PR_CALLBACK reader(void *arg)
+{
+	PRUintn	i = 0;
+	size_t	nbytes;
+	
+	do {
+		(void) PR_WaitSem(emptyBufs);
+		nbytes = dread(0, buf[i].data, BSIZE);
+		buf[i].nbytes = nbytes;
+		PR_PostSem(fullBufs);
+		i = (i + 1) % 2;
+	} while (nbytes > 0);
+}
+
+static void writer(void)
+{
+	PRUintn	i = 0;
+	size_t	nbytes;
+	
+	do {
+		(void) PR_WaitSem(fullBufs);
+		nbytes = buf[i].nbytes;
+		if (nbytes > 0) {
+			nbytes = dwrite(1, buf[i].data, nbytes);
+			PR_PostSem(emptyBufs);
+			i = (i + 1) % 2;
+		}
+	} while (nbytes > 0);
+}
+
+int main(int argc, char **argv)
+{
+	PRThread *r;
+
+    PR_STDIO_INIT();
+    PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
+
+    {
+    	/* The command line argument: -d is used to determine if the test is being run
+    	in debug mode. The regress tool requires only one line output:PASS or FAIL.
+    	All of the printfs associated with this test has been handled with a if (debug_mode)
+    	test.
+    	Usage: test_name -d
+    	*/
+    	PLOptStatus os;
+    	PLOptState *opt = PL_CreateOptState(argc, argv, "d:");
+    	while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
+        {
+    		if (PL_OPT_BAD == os) continue;
+            switch (opt->option)
+            {
+            case 'd':  /* debug mode */
+    			debug_mode = 1;
+                break;
+             default:
+                break;
+            }
+        }
+    	PL_DestroyOptState(opt);
+    }        
+
+ /* main test */
+
+    emptyBufs = PR_NewSem(2);	/* two empty buffers */
+
+    fullBufs = PR_NewSem(0);	/* zero full buffers */
+
+	/* create the reader thread */
+	
+	r = PR_CreateThread(PR_USER_THREAD,
+				      reader, 0, 
+				      PR_PRIORITY_NORMAL,
+				      PR_LOCAL_THREAD,
+    				  PR_UNJOINABLE_THREAD,
+				      0);
+
+	/* Do the writer operation in this thread */
+	writer();
+
+	PR_DestroySem(emptyBufs);
+	PR_DestroySem(fullBufs);
+
+	if (finalResult == PR_SUCCESS) {
+		if (debug_mode) printf("sem Test Passed.\n");
+	}
+	else{
+		if (debug_mode) printf("sem Test Failed.\n");
+		failed_already=1;
+	}
+    PR_Cleanup();
+	if(failed_already)	
+		return 1;
+	else
+		return 0;
+}
-- 
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