From: Peng Tao Date: Thu, 23 Aug 2012 17:03:34 +0000 (-0400) Subject: blkmapd: proper signal handling X-Git-Tag: debian/1%1.2.8-1~11^2^2~93 X-Git-Url: https://git.decadent.org.uk/gitweb/?a=commitdiff_plain;h=2e9210833f45821c66a849604ed8a9508b24a06f;p=nfs-utils.git blkmapd: proper signal handling Signed-off-by: Peng Tao Signed-off-by: Steve Dickson --- diff --git a/utils/blkmapd/device-discovery.c b/utils/blkmapd/device-discovery.c index 8eddf50..df4627e 100644 --- a/utils/blkmapd/device-discovery.c +++ b/utils/blkmapd/device-discovery.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include @@ -61,6 +62,7 @@ struct bl_disk *visible_disk_list; int bl_watch_fd, bl_pipe_fd, nfs_pipedir_wfd, rpc_pipedir_wfd; +int pidfd = -1; struct bl_disk_path *bl_get_path(const char *filepath, struct bl_disk_path *paths) @@ -431,10 +433,20 @@ static int bl_event_helper(void) return ret; } +void sig_die(int signal) +{ + if (pidfd >= 0) { + close(pidfd); + unlink(PID_FILE); + } + BL_LOG_ERR("exit on signal(%d)\n", signal); + exit(1); +} + /* Daemon */ int main(int argc, char **argv) { - int pidfd = -1, opt, dflag = 0, fg = 0, ret = 1; + int opt, dflag = 0, fg = 0, ret = 1; struct stat statbuf; char pidbuf[64]; @@ -479,6 +491,10 @@ int main(int argc, char **argv) write(pidfd, pidbuf, strlen(pidbuf)); } + signal(SIGINT, sig_die); + signal(SIGTERM, sig_die); + signal(SIGHUP, SIG_IGN); + if (dflag) { bl_discover_devices(); exit(0);