зеркало из https://github.com/mozilla/pjs.git
248 строки
6.2 KiB
C
248 строки
6.2 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the Netscape Portable Runtime (NSPR).
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998-2000 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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* GPL.
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*/
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/***********************************************************************
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**
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** Name: fileio.c
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**
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** Description: Program to copy one file to another.
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**
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** Modification History:
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** 14-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
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** The debug mode will print all of the printfs associated with this test.
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** The regress mode will be the default mode. Since the regress tool limits
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** the output to a one line status:PASS or FAIL,all of the printf statements
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** have been handled with an if (debug_mode) statement.
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** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to
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** recognize the return code from tha main program.
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** 12-June-97 Revert to return code 0 and 1, remove debug option (obsolete).
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***********************************************************************/
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/***********************************************************************
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** Includes
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***********************************************************************/
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#include "prinit.h"
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#include "prthread.h"
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#include "prlock.h"
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#include "prcvar.h"
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#include "prmon.h"
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#include "prmem.h"
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#include "prio.h"
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#include "prlog.h"
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#include <stdio.h>
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#ifdef XP_MAC
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#include "prsem.h"
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#include "prlog.h"
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#define printf PR_LogPrint
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extern void SetupMacPrintfLog(char *logFile);
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#else
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#include "obsolete/prsem.h"
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#endif
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#define TBSIZE 1024
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static PRUint8 tbuf[TBSIZE];
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static PRFileDesc *t1, *t2;
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PRIntn failed_already=0;
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PRIntn debug_mode;
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static void InitialSetup(void)
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{
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PRUintn i;
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PRInt32 nWritten, rv;
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t1 = PR_Open("t1.tmp", PR_CREATE_FILE | PR_RDWR, 0);
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PR_ASSERT(t1 != NULL);
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for (i=0; i<TBSIZE; i++)
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tbuf[i] = i;
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nWritten = PR_Write((PRFileDesc*)t1, tbuf, TBSIZE);
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PR_ASSERT(nWritten == TBSIZE);
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rv = PR_Seek(t1,0,PR_SEEK_SET);
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PR_ASSERT(rv == 0);
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t2 = PR_Open("t2.tmp", PR_CREATE_FILE | PR_RDWR, 0);
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PR_ASSERT(t2 != NULL);
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}
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static void VerifyAndCleanup(void)
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{
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PRUintn i;
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PRInt32 nRead, rv;
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for (i=0; i<TBSIZE; i++)
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tbuf[i] = 0;
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rv = PR_Seek(t2,0,PR_SEEK_SET);
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PR_ASSERT(rv == 0);
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nRead = PR_Read((PRFileDesc*)t2, tbuf, TBSIZE);
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PR_ASSERT(nRead == TBSIZE);
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for (i=0; i<TBSIZE; i++)
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if (tbuf[i] != (PRUint8)i) {
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if (debug_mode) printf("data mismatch for index= %d \n", i);
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else failed_already=1;
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}
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PR_Close(t1);
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PR_Close(t2);
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PR_Delete("t1.tmp");
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PR_Delete("t2.tmp");
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if (debug_mode) printf("fileio test passed\n");
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}
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/*------------------ Following is the real test program ---------*/
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/*
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Program to copy one file to another. Two temporary files get
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created. First one gets written in one write call. Then,
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a reader thread reads from this file into a double buffer.
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The writer thread writes from double buffer into the other
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temporary file. The second temporary file gets verified
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for accurate data.
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*/
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PRSemaphore *emptyBufs; /* number of empty buffers */
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PRSemaphore *fullBufs; /* number of buffers that are full */
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#define BSIZE 100
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struct {
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char data[BSIZE];
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PRUintn nbytes; /* number of bytes in this buffer */
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} buf[2];
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static void PR_CALLBACK reader(void *arg)
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{
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PRUintn i = 0;
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PRInt32 nbytes;
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do {
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(void) PR_WaitSem(emptyBufs);
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nbytes = PR_Read((PRFileDesc*)arg, buf[i].data, BSIZE);
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if (nbytes >= 0) {
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buf[i].nbytes = nbytes;
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PR_PostSem(fullBufs);
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i = (i + 1) % 2;
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}
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} while (nbytes > 0);
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}
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static void PR_CALLBACK writer(void *arg)
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{
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PRUintn i = 0;
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PRInt32 nbytes;
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do {
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(void) PR_WaitSem(fullBufs);
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nbytes = buf[i].nbytes;
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if (nbytes > 0) {
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nbytes = PR_Write((PRFileDesc*)arg, buf[i].data, nbytes);
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PR_PostSem(emptyBufs);
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i = (i + 1) % 2;
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}
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} while (nbytes > 0);
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}
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int main(int argc, char **argv)
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{
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PRThread *r, *w;
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PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
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PR_STDIO_INIT();
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#ifdef XP_MAC
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SetupMacPrintfLog("fileio.log");
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debug_mode = 1;
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#endif
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emptyBufs = PR_NewSem(2); /* two empty buffers */
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fullBufs = PR_NewSem(0); /* zero full buffers */
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/* Create initial temp file setup */
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InitialSetup();
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/* create the reader thread */
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r = PR_CreateThread(PR_USER_THREAD,
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reader, t1,
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PR_PRIORITY_NORMAL,
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PR_LOCAL_THREAD,
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PR_JOINABLE_THREAD,
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0);
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w = PR_CreateThread(PR_USER_THREAD,
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writer, t2,
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PR_PRIORITY_NORMAL,
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PR_LOCAL_THREAD,
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PR_JOINABLE_THREAD,
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0);
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/* Do the joining for both threads */
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(void) PR_JoinThread(r);
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(void) PR_JoinThread(w);
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/* Do the verification and clean up */
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VerifyAndCleanup();
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PR_DestroySem(emptyBufs);
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PR_DestroySem(fullBufs);
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PR_Cleanup();
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if(failed_already)
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{
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printf("Fail\n");
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return 1;
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}
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else
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{
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printf("PASS\n");
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return 0;
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}
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}
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