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+/* -*- 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: fileio.c
+**
+** Description: Program to copy one file to another.
+**
+** Modification History:
+** 14-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.
+** 12-June-97 Revert to return code 0 and 1, remove debug option (obsolete).
+***********************************************************************/
+
+/***********************************************************************
+** Includes
+***********************************************************************/
+#include "prinit.h"
+#include "prthread.h"
+#include "prlock.h"
+#include "prcvar.h"
+#include "prmon.h"
+#include "prmem.h"
+#include "prio.h"
+#include "prlog.h"
+
+#include <stdio.h>
+
+#include "obsolete/prsem.h"
+
+
+#define TBSIZE 1024
+
+static PRUint8 tbuf[TBSIZE];
+
+static PRFileDesc *t1, *t2;
+
+PRIntn failed_already=0;
+PRIntn debug_mode;
+static void InitialSetup(void)
+{
+ PRUintn i;
+ PRInt32 nWritten, rv;
+
+ t1 = PR_Open("t1.tmp", PR_CREATE_FILE | PR_RDWR, 0);
+ PR_ASSERT(t1 != NULL);
+
+ for (i=0; i<TBSIZE; i++)
+ tbuf[i] = i;
+
+ nWritten = PR_Write((PRFileDesc*)t1, tbuf, TBSIZE);
+ PR_ASSERT(nWritten == TBSIZE);
+
+ rv = PR_Seek(t1,0,PR_SEEK_SET);
+ PR_ASSERT(rv == 0);
+
+ t2 = PR_Open("t2.tmp", PR_CREATE_FILE | PR_RDWR, 0);
+ PR_ASSERT(t2 != NULL);
+}
+
+
+static void VerifyAndCleanup(void)
+{
+ PRUintn i;
+ PRInt32 nRead, rv;
+
+ for (i=0; i<TBSIZE; i++)
+ tbuf[i] = 0;
+
+ rv = PR_Seek(t2,0,PR_SEEK_SET);
+ PR_ASSERT(rv == 0);
+
+ nRead = PR_Read((PRFileDesc*)t2, tbuf, TBSIZE);
+ PR_ASSERT(nRead == TBSIZE);
+
+ for (i=0; i<TBSIZE; i++)
+ if (tbuf[i] != (PRUint8)i) {
+ if (debug_mode) printf("data mismatch for index= %d \n", i);
+ else failed_already=1;
+ }
+ PR_Close(t1);
+ PR_Close(t2);
+
+ PR_Delete("t1.tmp");
+ PR_Delete("t2.tmp");
+
+ if (debug_mode) printf("fileio test passed\n");
+}
+
+
+/*------------------ Following is the real test program ---------*/
+/*
+ Program to copy one file to another. Two temporary files get
+ created. First one gets written in one write call. Then,
+ a reader thread reads from this file into a double buffer.
+ The writer thread writes from double buffer into the other
+ temporary file. The second temporary file gets verified
+ for accurate data.
+*/
+
+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;
+ PRInt32 nbytes;
+
+ do {
+ (void) PR_WaitSem(emptyBufs);
+ nbytes = PR_Read((PRFileDesc*)arg, buf[i].data, BSIZE);
+ if (nbytes >= 0) {
+ buf[i].nbytes = nbytes;
+ PR_PostSem(fullBufs);
+ i = (i + 1) % 2;
+ }
+ } while (nbytes > 0);
+}
+
+static void PR_CALLBACK writer(void *arg)
+{
+ PRUintn i = 0;
+ PRInt32 nbytes;
+
+ do {
+ (void) PR_WaitSem(fullBufs);
+ nbytes = buf[i].nbytes;
+ if (nbytes > 0) {
+ nbytes = PR_Write((PRFileDesc*)arg, buf[i].data, nbytes);
+ PR_PostSem(emptyBufs);
+ i = (i + 1) % 2;
+ }
+ } while (nbytes > 0);
+}
+
+int main(int argc, char **argv)
+{
+ PRThread *r, *w;
+
+
+ PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
+ PR_STDIO_INIT();
+
+ emptyBufs = PR_NewSem(2); /* two empty buffers */
+
+ fullBufs = PR_NewSem(0); /* zero full buffers */
+
+ /* Create initial temp file setup */
+ InitialSetup();
+
+ /* create the reader thread */
+
+ r = PR_CreateThread(PR_USER_THREAD,
+ reader, t1,
+ PR_PRIORITY_NORMAL,
+ PR_LOCAL_THREAD,
+ PR_JOINABLE_THREAD,
+ 0);
+
+ w = PR_CreateThread(PR_USER_THREAD,
+ writer, t2,
+ PR_PRIORITY_NORMAL,
+ PR_LOCAL_THREAD,
+ PR_JOINABLE_THREAD,
+ 0);
+
+ /* Do the joining for both threads */
+ (void) PR_JoinThread(r);
+ (void) PR_JoinThread(w);
+
+ /* Do the verification and clean up */
+ VerifyAndCleanup();
+
+ PR_DestroySem(emptyBufs);
+ PR_DestroySem(fullBufs);
+
+ PR_Cleanup();
+
+ if(failed_already)
+ {
+ printf("Fail\n");
+ return 1;
+ }
+ else
+ {
+ printf("PASS\n");
+ return 0;
+ }
+
+
+}