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xbps-bin: use a signal handler for SIGINT, SIGTERM and SIGQUIT to

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free resources used by libxbps.

--HG--
extra : convert_revision : xtraeme%40gmail.com-20091023092025-gav4w23f1oc7mgjy
This commit is contained in:
Juan RP 2009-10-23 11:20:25 +02:00
parent 236b86ae50
commit ca39d1667e
1 changed files with 27 additions and 4 deletions
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31
bin/xbps-bin/main.c
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@ -28,11 +28,13 @@
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <errno.h> #include <errno.h>
#include <signal.h>
#include <xbps_api.h> #include <xbps_api.h>
#include "defs.h" #include "defs.h"
#include "../xbps-repo/util.h" #include "../xbps-repo/util.h"
static void cleanup(int);
static void usage(void); static void usage(void);
static int list_pkgs_in_dict(prop_object_t, void *, bool *); static int list_pkgs_in_dict(prop_object_t, void *, bool *);
@ -91,6 +93,7 @@ int
main(int argc, char **argv) main(int argc, char **argv)
{ {
prop_dictionary_t dict; prop_dictionary_t dict;
struct sigaction sa;
int c, flags = 0, rv = 0; int c, flags = 0, rv = 0;
bool force = false, verbose = false; bool force = false, verbose = false;
@ -126,6 +129,15 @@ main(int argc, char **argv)
if (flags != 0) if (flags != 0)
xbps_set_flags(flags); xbps_set_flags(flags);
/*
* Register a signal handler to clean up resources used by libxbps.
*/
memset(&sa, 0, sizeof(sa));
sa.sa_handler = cleanup;
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
sigaction(SIGQUIT, &sa, NULL);
if ((dict = xbps_prepare_regpkgdb_dict()) == NULL) { if ((dict = xbps_prepare_regpkgdb_dict()) == NULL) {
if (errno != ENOENT) { if (errno != ENOENT) {
rv = errno; rv = errno;
@ -271,10 +283,21 @@ main(int argc, char **argv)
} }
out: out:
cleanup(rv);
}
static void
cleanup(int signum)
{
switch (signum) {
case SIGINT:
case SIGTERM:
case SIGQUIT:
printf("\nSignal caught, cleaning up...\n");
break;
}
xbps_release_repolist_data(); xbps_release_repolist_data();
xbps_release_regpkgdb_dict(); xbps_release_regpkgdb_dict();
if (rv != 0)
exit(EXIT_FAILURE); _exit(signum);
exit(EXIT_SUCCESS);
} }