sem.c revision 677833bc953b6cb418c701facbdcf4aa18d6c44e
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/***********************************************************************
**
** 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>
/*
Since we don't have stdin, stdout everywhere, we will fake
it with our in-memory buffers called stdin and stdout.
*/
#define SBSIZE 1024
#ifdef XP_MAC
#include "prlog.h"
#include "prsem.h"
#define printf PR_LogPrint
extern void SetupMacPrintfLog(char *logFile);
#else
#endif
static PRUintn stdinBufIdx = 0;
static PRUintn stdoutBufIdx = 0;
{
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;
}
return i;
}
{
PRUintn i, j;
/* copy data from the given buffer upto bufSize to stdoutBuf */
for (i=0; i<bufSize; i++) {
if (stdoutBufIdx == SBSIZE)
break;
}
/* during last write call, compare the two buffers */
if (stdoutBufIdx == SBSIZE)
for (j=0; j<SBSIZE; j++)
}
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.
*/
#define BSIZE 100
struct {
} buf[2];
{
PRUintn i = 0;
do {
(void) PR_WaitSem(emptyBufs);
i = (i + 1) % 2;
} while (nbytes > 0);
}
static void writer(void)
{
PRUintn i = 0;
do {
(void) PR_WaitSem(fullBufs);
if (nbytes > 0) {
i = (i + 1) % 2;
}
} while (nbytes > 0);
}
{
PRThread *r;
{
/* 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
*/
{
if (PL_OPT_BAD == os) continue;
{
case 'd': /* debug mode */
debug_mode = 1;
break;
default:
break;
}
}
}
/* main test */
#ifdef XP_MAC
SetupMacPrintfLog("sem.log");
debug_mode = 1;
#endif
/* create the reader thread */
reader, 0,
0);
/* Do the writer operation in this thread */
writer();
if (finalResult == PR_SUCCESS) {
}
else{
}
PR_Cleanup();
if(failed_already)
return 1;
else
return 0;
}