diff options
Diffstat (limited to 'src/syssignal.h')
| -rw-r--r-- | src/syssignal.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/syssignal.h b/src/syssignal.h index cef71f7459a..04e84df1a3a 100644 --- a/src/syssignal.h +++ b/src/syssignal.h @@ -20,6 +20,11 @@ Boston, MA 02111-1307, USA. */ extern void init_signals P_ ((void)); +#ifdef HAVE_GTK_AND_PTHREAD +#include <pthread.h> +extern pthread_t main_thread; +#endif + #ifdef POSIX_SIGNALS /* Don't #include <signal.h>. That header should always be #included @@ -198,5 +203,27 @@ extern SIGMASKTYPE sigprocmask_set; char *strsignal (); #endif +#ifdef HAVE_GTK_AND_PTHREAD +#define SIGNAL_THREAD_CHECK(signo) \ + do { \ + if (pthread_self () != main_thread) \ + { \ + /* POSIX says any thread can receive the signal. On GNU/Linux \ + that is not true, but for other systems (FreeBSD at least) \ + it is. So direct the signal to the correct thread and block \ + it from this thread. */ \ + sigset_t new_mask; \ + \ + sigemptyset (&new_mask); \ + sigaddset (&new_mask, signo); \ + pthread_sigmask (SIG_BLOCK, &new_mask, 0); \ + pthread_kill (main_thread, signo); \ + return; \ + } \ + } while (0) + +#else /* not HAVE_GTK_AND_PTHREAD */ +#define SIGNAL_THREAD_CHECK(signo) +#endif /* not HAVE_GTK_AND_PTHREAD */ /* arch-tag: 4580e86a-340d-4574-9e11-a742b6e1a152 (do not change this comment) */ |