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BSDI specific patches, inspired by Nigel Head and otto@mail.olympus.net. 

Also (non-BSDI specific):

- Change the CHECK_STATUS() macro so it tests for nonzero error codes
instead of negative error codes only (this was needed for BSDI, but
appears to be correct according to the PTHREADS spec).

- use memset() to zero out the allocated lock structure.  Again, this
was needed for BSDI, but can't hurt elsewhere either.
This commit is contained in:
Guido van Rossum 1998-10-07 16:39:47 +00:00
parent c501583dfa
commit 9e46e56264
1 changed files with 22 additions and 1 deletions
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23
Python/thread_pthread.h
View File

@ -32,6 +32,7 @@ PERFORMANCE OF THIS SOFTWARE.
/* Posix threads interface */
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
@ -113,11 +114,28 @@ typedef struct {
pthread_mutex_t mut;
} pthread_lock;
#define CHECK_STATUS(name) if (status < 0) { perror(name); error=1; }
#define CHECK_STATUS(name) if (status != 0) { perror(name); error = 1; }
/*
* Initialization.
*/
#ifdef _HAVE_BSDI
static void _noop()
{
}
static void _init_thread _P0()
{
/* DO AN INIT BY STARTING THE THREAD */
static int dummy = 0;
pthread_t thread1;
pthread_create(&thread1, NULL, (void *) _noop, &dummy);
pthread_join(thread1, NULL);
}
#else /* !_HAVE_BSDI */
static void _init_thread _P0()
{
#if defined(_AIX) && defined(__GNUC__)
@ -125,6 +143,8 @@ static void _init_thread _P0()
#endif
}
#endif /* !_HAVE_BSDI */
/*
* Thread support.
*/
@ -234,6 +254,7 @@ type_lock allocate_lock _P0()
init_thread();
lock = (pthread_lock *) malloc(sizeof(pthread_lock));
memset((void *)lock, '\0', sizeof(pthread_lock));
if (lock) {
lock->locked = 0;