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| author | Peter Stephenson <pws@users.sourceforge.net> | 2004-04-21 11:18:45 +0000 |
|---|---|---|
| committer | Peter Stephenson <pws@users.sourceforge.net> | 2004-04-21 11:18:45 +0000 |
| commit | 5747147afff8a991561a490eca38892c1971a901 (patch) | |
| tree | dad6c366403973811fe775a49922f3fa724a4eb4 /Src/signals.c | |
| parent | f34d9be61b047beadb24748163c1bc59a7eff9d3 (diff) | |
| download | zsh-5747147afff8a991561a490eca38892c1971a901.tar.gz zsh-5747147afff8a991561a490eca38892c1971a901.tar.xz zsh-5747147afff8a991561a490eca38892c1971a901.zip | |
19809: improve NO_TRAPS_ASYNC by queueing traps alone
Diffstat (limited to 'Src/signals.c')
| -rw-r--r-- | Src/signals.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/Src/signals.c b/Src/signals.c index 8939d1ba1..25febc85d 100644 --- a/Src/signals.c +++ b/Src/signals.c @@ -49,12 +49,19 @@ mod_export int nsigtrapped; /* Variables used by signal queueing */ /**/ -mod_export int queueing_enabled, queue_front, queue_rear, queue_not_sigchld; +mod_export int queueing_enabled, queue_front, queue_rear; /**/ mod_export int signal_queue[MAX_QUEUE_SIZE]; /**/ mod_export sigset_t signal_mask_queue[MAX_QUEUE_SIZE]; +/* Variables used by trap queueing */ + +/**/ +mod_export int trap_queueing_enabled, trap_queue_front, trap_queue_rear; +/**/ +mod_export int trap_queue[MAX_QUEUE_SIZE]; + /* This is only used on machines that don't understand signal sets. * * On SYSV machines this will represent the signals that are blocked * * (held) using sighold. On machines which can't block signals at * @@ -426,7 +433,7 @@ zhandler(int sig) #endif /* Are we queueing signals now? */ - if (queueing_enabled && (sig != SIGCHLD || !queue_not_sigchld)) { + if (queueing_enabled) { int temp_rear = ++queue_rear % MAX_QUEUE_SIZE; DPUTS(temp_rear == queue_front, "BUG: signal queue full"); @@ -1058,5 +1065,17 @@ dotrap(int sig) if ((sigtrapped[sig] & ZSIG_IGNORED) || !sigfuncs[sig] || errflag) return; + /* Adapted from signal queueing in zhandler */ + if (trap_queueing_enabled && !isset(TRAPSASYNC)) { + int temp_rear = ++trap_queue_rear % MAX_QUEUE_SIZE; + + DPUTS(temp_rear == trap_queue_front, "BUG: trap queue full"); + if (temp_rear != trap_queue_front) { + trap_queue_rear = temp_rear; + trap_queue[trap_queue_rear] = sig; + } + return; + } + dotrapargs(sig, sigtrapped+sig, sigfuncs[sig]); } |