void destroy_threadpool(threadpool destroyme) {
_threadpool *pool = (_threadpool *) destroyme;
void* nothing;
int i = 0;
free(pool->threads);
mypthread_mutex_destroy(&(pool->mutex));
mypthread_cond_destroy(&(pool->cond));
mypthread_exit(NULL);
return;
}
int main( int argc, char **argv )
{
int i, *pList = 0, nListSize = LISTSIZE;
mypthread_t *threads, thrcheck;
mypthread_mutex_t *mutexes;
struct pthrarg *pthrargs, pthrargcheck;
if( argc == 2 )
nListSize = atoi( argv[1] );
nListSize = nListSize > 0 ? nListSize : LISTSIZE;
// Creating the List of numbers
printf( "Number of elements: %d\n", nListSize );
pList = (int *) malloc( sizeof( int ) * nListSize );
for( i = 0; i < nListSize; i++ )
pList[i] = random( ) % (nListSize<<1); // random list
// pList[i] = nListSize-i; // decreasing list (easier to debug)
printf( "[BEFORE] The list is NOT sorted:\n" );
printList( pList, nListSize );
threads = (mypthread_t *) malloc( sizeof(mypthread_t) * (nListSize-1) );
mutexes = (mypthread_mutex_t *)malloc( sizeof(mypthread_mutex_t) * nListSize );
pthrargs = (struct pthrarg *)malloc( sizeof(struct pthrarg) * (nListSize-1) );
mypthread_mutex_init( &mutexes[0], 0 );
for( i = 0; i < nListSize-1; i++ )
{
mypthread_mutex_init( &mutexes[i+1], 0 );
pthrargs[i].num = &pList[i];
pthrargs[i].mtx = &mutexes[i];
pthrargs[i].size = nListSize;
if( mypthread_create( &threads[i], 0, &fnsort, &pthrargs[i] ) != 0 )
{
printf( "[FATAL] Could not create thread: %d\n", i );
exit( 1 );
}
}
pthrargcheck.num = pList;
pthrargcheck.mtx = mutexes;
pthrargcheck.size = nListSize;
if( mypthread_create( &thrcheck, 0, &fncheck, &pthrargcheck ) != 0 )
{
printf( "[FATAL] Could not create thread: fncheck\n" );
exit( 1 );
}
///////////
// Waiting the threads to complete the sorting
//////////
printf( "waiting...\n" );
for( i = 0; i < nListSize-1; i++ )
mypthread_join( threads[i], 0 );
mypthread_join( thrcheck, 0 );
for( i = 0; i < nListSize; i++ )
mypthread_mutex_destroy( &mutexes[i] );
printf( "[AFTER] The list is sorted:\n" );
printList( pList, nListSize );
// Cleaning
free( pthrargs );
free( mutexes );
free( threads );
free( pList );
return 0;
}