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authorpaul <paul>2004-07-22 19:14:27 +0000
committerpaul <paul>2004-07-22 19:14:27 +0000
commit05c447dd2e3aab0d045889845da0be5c8d974d4b (patch)
tree062ca42a848dc0377d7a814d8570e77bc59a2eff /lib/sigevent.h
parent27eebb3e5713559379ac072d5f36e26044465ab0 (diff)
2004-07-14 Paul Jakma <paul@dishone.st>
* sigevent.c: (quagga_signal_handler) add a global caught flag, set the flags to a constant rather increment to be kinder. (quagga_sigevent_process) new function, to do core of what quagga_signal_timer did. dont block signals at all as sig->caught is volatile sig_atomic_t and should be safe to access from signal and normal contexts. The signal blocking is unneeded paranoia, but is left intact under an ifdef, should some platform require it. Check global caught flag before iterating through array. (quagga_signal_timer) nearly everything moved to quagga_sigevent_process. Left in under ifdef, in case some platform could use a regular timer check for signals. * sigevent.h: quagga_sigevent_process declaration. * thread.c: (thread_fetch) check for signals at beginning of scheduler loop, check for signals if select returns EINTR.
Diffstat (limited to 'lib/sigevent.h')
-rw-r--r--lib/sigevent.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/sigevent.h b/lib/sigevent.h
index 6296736a..20012aff 100644
--- a/lib/sigevent.h
+++ b/lib/sigevent.h
@@ -23,6 +23,7 @@
#ifndef _QUAGGA_SIGNAL_H
#define _QUAGGA_SIGNAL_H
+
#include <thread.h>
#define QUAGGA_SIGNAL_TIMER_INTERVAL 2L
@@ -46,4 +47,7 @@ struct quagga_signal_t
void signal_init (struct thread_master *m, int sigc,
struct quagga_signal_t *signals);
+/* check whether there are signals to handle, process any found */
+int quagga_sigevent_process (void);
+
#endif /* _QUAGGA_SIGNAL_H */