diff options
Diffstat (limited to 'byterun/signals.c')
| -rw-r--r-- | byterun/signals.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/byterun/signals.c b/byterun/signals.c index 4b21b60e4..521ff3c0e 100644 --- a/byterun/signals.c +++ b/byterun/signals.c @@ -26,6 +26,8 @@ Volatile int pending_signal = 0; Volatile int something_to_do = 0; Volatile int force_major_slice = 0; value signal_handlers = 0; +void (*enter_blocking_section_hook)() = NULL; +void (*leave_blocking_section_hook)() = NULL; static void execute_signal(signal_number) int signal_number; @@ -72,11 +74,13 @@ void enter_blocking_section() if (!pending_signal) break; async_signal_mode = 0; } + if (enter_blocking_section_hook != NULL) enter_blocking_section_hook(); } /* This function may be called from outside a blocking section. */ void leave_blocking_section() { + if (leave_blocking_section_hook != NULL) leave_blocking_section_hook(); async_signal_mode = 0; } |