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lockfile.c: unlink locks on signal

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This commit is contained in:
Henrik Hautakoski 2011-08-16 19:31:02 +02:00
parent 45736b3845
commit 4c8c92b7f6
1 changed files with 18 additions and 0 deletions
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18
lockfile.c
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@ -23,6 +23,7 @@
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
@ -66,6 +67,22 @@ static void remove_from_list(struct lockfile *lock) {
}
}
static void register_signal_handl(void (*handl)(int)) {
signal(SIGINT, handl);
signal(SIGHUP, handl);
signal(SIGTERM, handl);
signal(SIGQUIT, handl);
signal(SIGPIPE, handl);
}
static void sig_remove_from_list(int signo) {
release_all_locks();
signal(signo, SIG_DFL);
raise(signo);
}
static inline void init(void) {
static int is_init = 0;
@ -73,6 +90,7 @@ static inline void init(void) {
if (is_init)
return;
register_signal_handl(sig_remove_from_list);
atexit(release_all_locks);
is_init = 1;
}