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/*
* test program from
* Debian Bug report logs - #241156
* electric-fence (2.1.13-0.1) breaks with 2.6.x kernel
*
* changed to compile on Windows by Hayati Ayguen
*/
/* $Id$ */
/* gcc foo.c -pthread -lefence -g -ggdb -o foo */
/* (defined(WIN32) || defined(__CYGWIN__) || defined(__MINGW32__) || defined(__MINGW64__)) */
/* remove "|| defined(__CYGWIN__)" in following line
* to test with pthread library on Win32-Cygwin
*/
#if ( defined(_MSC_VER) || defined(__CYGWIN__) || defined(__MINGW32__) || defined(__MINGW64__) )
#include <windows.h>
#else
#include <pthread.h>
#include <unistd.h>
#include <errno.h>
#define HAVE_PTHREADS
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../duma.h"
volatile int iKillThreads = 0;
#define MAX_NUM_THREADS 32
volatile int aiCounter[MAX_NUM_THREADS];
/* thread function
* permanently allocate, initialize and deallocate in a loop
*/
#ifdef HAVE_PTHREADS
void* poster(void* arg)
#else
DWORD WINAPI poster( LPVOID arg )
#endif
{
char* foo = NULL;
int iThreadNo = *((int*)arg);
#if 0
/* sleep a bit, that other threads can get started
* before producing high load
*/
#ifdef HAVE_PTHREADS
sleep(1); /* wait 1 sec */
#else
Sleep(1000);
#endif
#endif
for( ; !iKillThreads; )
{
foo = (char*)malloc(4096);
if (foo)
{
memset(foo, 0, 4096);
free(foo);
}
++ aiCounter[iThreadNo];
}
#ifdef HAVE_PTHREADS
pthread_exit(NULL);
#endif
return 0;
}
#define MAX_NUM_THREADS 32
int main(int argc, char *argv[])
{
int iSleepTime = 60; /* in seconds; default = 30 sec */
int iNumThreads = 4;
int i;
#ifdef HAVE_PTHREADS
pthread_t tId[MAX_NUM_THREADS];
#else
HANDLE tId[MAX_NUM_THREADS];
#endif
int tArg[MAX_NUM_THREADS];
#ifdef DUMA_EXPLICIT_INIT
/* necessary on some platforms!
* like on Win32-Cygwin
*/
duma_init();
#endif
if ( argc > 1 )
{
i = atoi(argv[1]);
if ( i > 0 )
iSleepTime = i;
}
if ( argc > 2 )
{
i = atoi(argv[2]);
if ( i > 0 )
iNumThreads = i;
if ( iNumThreads > MAX_NUM_THREADS )
iNumThreads = MAX_NUM_THREADS;
}
fprintf(stdout, "running %d threads for %d secs ..", iNumThreads, iSleepTime);
fflush(stdout);
for ( i = 0; i < iNumThreads; ++i )
{
tArg[i] = i;
aiCounter[i] = 0;
}
#ifdef HAVE_PTHREADS
fprintf(stdout, "creating threads with pthread library .. \n");
fflush(stdout);
for ( i = 0; i < iNumThreads; ++i )
{
pthread_t *pt = &tId[i];
int r = pthread_create( pt, NULL, poster, &tArg[i] );
if ( r )
{
fprintf(stderr, "\nerror in pthread_create() for thread %d: ", i);
switch(r)
{
case EAGAIN: fprintf(stderr, "EAGAIN"); break;
case EINVAL: fprintf(stderr, "EINVAL"); break;
case EPERM: fprintf(stderr, "EPERM"); break;
default: fprintf(stderr, "unexpected!"); break;
}
}
}
fprintf(stdout, ".. creating done\n");
fflush(stdout);
/* sleep(iSleepTime); */
for ( i = 0; i < iSleepTime; ++i )
{
sleep(1); /* wait 1 sec */
fprintf(stdout, ".");
fflush(stdout);
}
#else
fprintf(stdout, "creating threads with Win32 API calls\n");
fflush(stdout);
for ( i = 0; i < iNumThreads; ++i )
{
tId[i] = CreateThread( NULL /* default security attributes */
, 0 /* use default stack size */
, poster /* thread function name */
, &tArg[i]/* argument to thread function */
, 0 /* use default creation flags */
, NULL /* returns the thread identifier */
);
if ( NULL == tId[i] )
fprintf(stderr, "\nerror in CreateThread() for thread %d: ", i);
}
/* Sleep(iSleepTime*1000); */
for ( i =0; i < iSleepTime; ++i )
{
Sleep(1000); /* wait 1000 ms */
fprintf(stdout, ".");
fflush(stdout);
}
#endif
fprintf(stdout, "..done\n");
iKillThreads = 1;
fprintf(stdout, "wating threads to end ..");
fflush(stdout);
#ifdef HAVE_PTHREADS
for ( i = 0; i < iNumThreads; ++i )
{
pthread_t *pt = &tId[i];
int r = pthread_join( *pt, NULL );
if ( r )
{
fprintf(stderr, "\nerror in pthread_join() for thread %d: ", i);
switch(r)
{
case EINVAL: fprintf(stderr, "EINVAL"); break;
case ESRCH: fprintf(stderr, "ESRCH"); break;
case EDEADLK: fprintf(stderr, "EDEADLK"); break;
default: fprintf(stderr, "unexpected!"); break;
}
}
}
#else
// Wait until all threads have terminated.
WaitForMultipleObjects( iNumThreads, tId, TRUE, INFINITE);
for ( i = 0; i < iNumThreads; ++i )
CloseHandle(tId[i]);
#endif
fprintf(stdout, "..done\n");
fprintf(stdout, "state:\n");
for ( i = 0; i < iNumThreads; ++i )
fprintf(stdout, "Thread %d did %d (de)allocations\n", i, aiCounter[i]);
fflush(stdout);
return 0;
}
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