diff options
Diffstat (limited to 'include/apr_thread_proc.h')
| -rw-r--r-- | include/apr_thread_proc.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/apr_thread_proc.h b/include/apr_thread_proc.h index 6b171e9ab6390..ea3c43f905075 100644 --- a/include/apr_thread_proc.h +++ b/include/apr_thread_proc.h @@ -816,6 +816,13 @@ APR_DECLARE(apr_status_t) apr_setup_signal_thread(void); * functions should return 1 if the signal has been handled, 0 otherwise. * @param signal_handler The function to call when a signal is received * apr_status_t apr_signal_thread((int)(*signal_handler)(int signum)) + * @note Synchronous signals like SIGABRT/SIGSEGV/SIGBUS/... are ignored by + * apr_signal_thread() and thus can't be waited by this function (they remain + * handled by the operating system or its native signals interface). + * @remark In APR version 1.6 and ealier, SIGUSR2 was part of these ignored + * signals and thus was never passed in to the signal_handler. From APR 1.7 + * this is no more the case so SIGUSR2 can be handled in signal_handler and + * acted upon like the other asynchronous signals. */ APR_DECLARE(apr_status_t) apr_signal_thread(int(*signal_handler)(int signum)); |