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Westermo service starter and supervisor, inspired by daemontools

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finit.c:
        o New service and shell_service stanzas for finit.conf
        o Run service_startup() before /etc/finit.d/ hooks
        o Run service_monitor() at end of startup

helpers.c:
        o Several new functions:
          - print_desc() displays a service starting up
          - print_result() shows if service started OK or not
          - start_process() is used by the services framework

svc.c:
        Generic API for managing svc_t structures

ipc.o:
        TIPC based framework for communicating with the service monitor.
        E.g., to relay (re)configuration signals from a Web/CLI
        front-end via finit to one or many setup daemons, and back.

services.c:
        Service monitor framework

strlcpy.c:
        Secure strncpy() replacement from OpenBSD under the free ISC License.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>
This commit is contained in:
Joachim Nilsson committed 2012-09-20 01:16:00 +02:00
1 parent c0356b5c7a
commit d21dc2b477
14 files changed
+1352 -28
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signal.c
+16 -5
View File
@@ -98,7 +98,8 @@ void do_shutdown (int sig)
*/
static void shutdown_handler(int sig, siginfo_t *info, void *UNUSED(ctx))
{
_d("Rebooting on signal %d from pid %d with code %d", sig, info->si_pid, info->si_code);
_d("Rebooting on signal %d from %s (PID %d) with code %d",
sig, get_pidname(info->si_pid, NULL, 0), info->si_pid, info->si_code);
do_shutdown(sig);
}
@@ -110,8 +111,8 @@ static void chld_handler(int sig, siginfo_t *info, void *UNUSED(ctx))
{
int status;
/* XXX: Add (procname) to debug output, add get_procname(pid) to helpers.c */
_d("Child died, harvesting. Signal %d from pid %d code %d", sig, info->si_pid, info->si_code);
_d("Child %s died, harvesting. Signal %d from pid %d code %d",
get_pidname(info->si_pid, NULL, 0), sig, info->si_pid, info->si_code);
while (waitpid(-1, &status, WNOHANG) != 0) {
if (errno == ECHILD)
break;
@@ -123,17 +124,27 @@ static void chld_handler(int sig, siginfo_t *info, void *UNUSED(ctx))
*/
static void sigstop_handler(int sig, siginfo_t *info, void *UNUSED(ctx))
{
_d("Received SIGSTOP(%d) from pid %d code %d", sig, info->si_pid, info->si_code);
_d("Received SIGSTOP(%d) from %s (PID %d) code %d",
sig, get_pidname(info->si_pid, NULL, 0), info->si_pid, info->si_code);
touch(SYNC_STOPPED);
stopped ++;
}
static void sigcont_handler(int sig, siginfo_t *info, void *UNUSED(ctx))
{
_d("Received SIGCONT(%d) from pid %d code %d", sig, info->si_pid, info->si_code);
_d("Received SIGCONT(%d) from %s (PID %d) code %d",
sig, get_pidname(info->si_pid, NULL, 0), info->si_pid, info->si_code);
stopped = 0;
remove(SYNC_STOPPED);
}
/*
* Is SIGSTOP asserted?
*/
int sig_stopped(void)
{
return stopped;
}
/*
* Inital signal setup - ignore everything until we're capable of responding
*/