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threaded resolver: Use pthread_t * for curl_thread_t

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... since pthread_t may be non-scalar and/or may represent a real thread
with scalar 0.

Bug: http://curl.haxx.se/bug/view.cgi?id=1314
This commit is contained in:
Luke Dashjr 2013-12-24 23:10:42 +00:00 committed by Daniel Stenberg
parent 7fd490732a
commit e8b57d1e84
2 changed files with 19 additions and 13 deletions
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28
lib/curl_threads.c
View File

@ -5,7 +5,7 @@
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
@ -63,32 +63,38 @@ static void *curl_thread_create_thunk(void *arg)
curl_thread_t Curl_thread_create(unsigned int (*func) (void*), void *arg)
{
curl_thread_t t;
curl_thread_t t = malloc(sizeof(pthread_t));
struct curl_actual_call *ac = malloc(sizeof(struct curl_actual_call));
if(!ac)
return curl_thread_t_null;
if(!(ac && t))
goto err;
ac->func = func;
ac->arg = arg;
if(pthread_create(&t, NULL, curl_thread_create_thunk, ac) != 0) {
free(ac);
return curl_thread_t_null;
}
if(pthread_create(t, NULL, curl_thread_create_thunk, ac) != 0)
goto err;
return t;
err:
free(t);
free(ac);
return curl_thread_t_null;
}
void Curl_thread_destroy(curl_thread_t hnd)
{
if(hnd != curl_thread_t_null)
pthread_detach(hnd);
if(hnd != curl_thread_t_null) {
pthread_detach(*hnd);
free(hnd);
}
}
int Curl_thread_join(curl_thread_t *hnd)
{
int ret = (pthread_join(*hnd, NULL) == 0);
int ret = (pthread_join(**hnd, NULL) == 0);
free(*hnd);
*hnd = curl_thread_t_null;
return ret;

4
lib/curl_threads.h
View File

@ -26,8 +26,8 @@
#if defined(USE_THREADS_POSIX)
# define CURL_STDCALL
# define curl_mutex_t pthread_mutex_t
# define curl_thread_t pthread_t
# define curl_thread_t_null (pthread_t)0
# define curl_thread_t pthread_t *
# define curl_thread_t_null (pthread_t *)0
# define Curl_mutex_init(m) pthread_mutex_init(m, NULL)
# define Curl_mutex_acquire(m) pthread_mutex_lock(m)
# define Curl_mutex_release(m) pthread_mutex_unlock(m)