diff options
Diffstat (limited to 'manual/signal.texi')
| -rw-r--r-- | manual/signal.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/manual/signal.texi b/manual/signal.texi index bc69019e63..7948229871 100644 --- a/manual/signal.texi +++ b/manual/signal.texi @@ -2927,6 +2927,14 @@ The function was interrupted by delivery of a signal. If the signal causes program termination, @code{pause} doesn't return (obviously). +This function is a cancelation point in multi-threaded programs. This +is a problem if the thread allocates some resources (like memory, file +descriptors, semaphores or whatever) at the time @code{pause} is +called. If the thread gets canceled these resources stay allocated +until the program ends. To avoid this calls to @code{pause} should be +protected using cancelation handlers. +@c ref pthread_cleanup_push / pthread_cleanup_pop + The @code{pause} function is declared in @file{unistd.h}. @end deftypefun |