diff options
Diffstat (limited to 'src/systhread.h')
| -rw-r--r-- | src/systhread.h | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/src/systhread.h b/src/systhread.h index 4745d220654..3805cb261f1 100644 --- a/src/systhread.h +++ b/src/systhread.h @@ -19,6 +19,18 @@ along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */ #ifndef SYSTHREAD_H #define SYSTHREAD_H +#include <stdbool.h> + +#ifndef __has_attribute +# define __has_attribute(a) false +#endif + +#if __has_attribute (__warn_unused_result__) +# define ATTRIBUTE_WARN_UNUSED_RESULT __attribute__ ((__warn_unused_result__)) +#else +# define ATTRIBUTE_WARN_UNUSED_RESULT +#endif + #ifdef THREADS_ENABLED #ifdef HAVE_PTHREAD @@ -99,11 +111,14 @@ extern void sys_cond_signal (sys_cond_t *); extern void sys_cond_broadcast (sys_cond_t *); extern void sys_cond_destroy (sys_cond_t *); -extern sys_thread_t sys_thread_self (void); +extern sys_thread_t sys_thread_self (void) + ATTRIBUTE_WARN_UNUSED_RESULT; +extern bool sys_thread_equal (sys_thread_t, sys_thread_t) + ATTRIBUTE_WARN_UNUSED_RESULT; -extern int sys_thread_create (sys_thread_t *, const char *, - thread_creation_function *, - void *); +extern bool sys_thread_create (sys_thread_t *, const char *, + thread_creation_function *, void *) + ATTRIBUTE_WARN_UNUSED_RESULT; extern void sys_thread_yield (void); |