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| author | Jeff Trawick <trawick@apache.org> | 2002-03-20 21:47:55 +0000 |
|---|---|---|
| committer | Jeff Trawick <trawick@apache.org> | 2002-03-20 21:47:55 +0000 |
| commit | 45e14c6b8cf6ee020a1ebc65cc19b94112c49c9b (patch) | |
| tree | d6e216373db366480e0d36b9101ad3429d303181 /threadproc/unix | |
| parent | dc79c6186636afa9a6e1b841b6050fba6664e567 (diff) | |
| download | apr-45e14c6b8cf6ee020a1ebc65cc19b94112c49c9b.tar.gz apr-45e14c6b8cf6ee020a1ebc65cc19b94112c49c9b.zip | |
add a comment distinguishing between SIGUSR2 and the synchronous
signals which we absolutely must avoid blocking
git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@63170 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to 'threadproc/unix')
| -rw-r--r-- | threadproc/unix/signals.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/threadproc/unix/signals.c b/threadproc/unix/signals.c index e20cd9339..d53e60476 100644 --- a/threadproc/unix/signals.c +++ b/threadproc/unix/signals.c @@ -301,6 +301,14 @@ static void remove_sync_sigs(sigset_t *sig_mask) #ifdef SIGTRAP sigdelset(sig_mask, SIGTRAP); #endif + +/* the rest of the signals removed from the mask in this function + * absolutely must be removed; you cannot block synchronous signals + * (requirement of pthreads API) + * + * SIGUSR2 is being removed from the mask for the convenience of + * Purify users (Solaris, HP-UX, SGI) since Purify uses SIGUSR2 + */ #ifdef SIGUSR2 sigdelset(sig_mask, SIGUSR2); #endif |