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Diffstat (limited to '')
| -rw-r--r-- | nsprpub/pr/tests/fileio.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/fileio.c b/nsprpub/pr/tests/fileio.c new file mode 100644 index 0000000000..a0be3bb10a --- /dev/null +++ b/nsprpub/pr/tests/fileio.c @@ -0,0 +1,214 @@ +/* -*- 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; + } + + +} |