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https://github.com/sheumann/hush.git
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sv: fix "sv o SRV; ...; sv d SRV" (bug 461) + code shrink
function old new delta status 120 118 -2 control 159 126 -33 sv_main 1222 1183 -39 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
parent
e46601d8a3
commit
b3ba9e28e8
68
runit/sv.c
68
runit/sv.c
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@ -297,8 +297,8 @@ static int status(const char *unused UNUSED_PARAM)
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{
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int r;
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r = svstatus_get();
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switch (r) { case -1: case 0: return 0; }
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if (svstatus_get() <= 0)
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return 0;
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r = svstatus_print(*service);
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if (chdir("log") == -1) {
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@ -343,7 +343,7 @@ static int checkscript(void)
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static int check(const char *a)
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{
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int r;
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unsigned pid;
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unsigned pid_le32;
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uint64_t timestamp;
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r = svstatus_get();
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@ -354,29 +354,29 @@ static int check(const char *a)
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return 1;
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return -1;
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}
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pid = SWAP_LE32(svstatus.pid_le32);
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pid_le32 = svstatus.pid_le32;
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switch (*a) {
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case 'x':
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return 0;
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case 'u':
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if (!pid || svstatus.run_or_finish != 1) return 0;
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if (!pid_le32 || svstatus.run_or_finish != 1) return 0;
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if (!checkscript()) return 0;
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break;
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case 'd':
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if (pid) return 0;
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if (pid_le32) return 0;
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break;
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case 'c':
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if (pid && !checkscript()) return 0;
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if (pid_le32 && !checkscript()) return 0;
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break;
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case 't':
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if (!pid && svstatus.want == 'd') break;
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if (!pid_le32 && svstatus.want == 'd') break;
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timestamp = SWAP_BE64(svstatus.time_be64);
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if ((tstart > timestamp) || !pid || svstatus.got_term || !checkscript())
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if ((tstart > timestamp) || !pid_le32 || svstatus.got_term || !checkscript())
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return 0;
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break;
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case 'o':
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timestamp = SWAP_BE64(svstatus.time_be64);
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if ((!pid && tstart > timestamp) || (pid && svstatus.want != 'd'))
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if ((!pid_le32 && tstart > timestamp) || (pid_le32 && svstatus.want != 'd'))
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return 0;
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}
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printf(OK);
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@ -387,12 +387,16 @@ static int check(const char *a)
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static int control(const char *a)
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{
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int fd, r;
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int fd, r, l;
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/* Is it an optimization?
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It causes problems with "sv o SRV; ...; sv d SRV"
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('d' is not passed to SRV because its .want == 'd'):
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if (svstatus_get() <= 0)
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return -1;
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if (svstatus.want == *a)
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return 0;
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*/
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fd = open_write("supervise/control");
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if (fd == -1) {
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if (errno != ENODEV)
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@ -401,9 +405,10 @@ static int control(const char *a)
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*a == 'x' ? ok("runsv not running") : failx("runsv not running");
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return -1;
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}
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r = write(fd, a, strlen(a));
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l = strlen(a);
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r = write(fd, a, l);
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close(fd);
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if (r != strlen(a)) {
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if (r != l) {
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warn("cannot write to supervise/control");
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return -1;
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}
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@ -411,15 +416,12 @@ static int control(const char *a)
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}
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int sv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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int sv_main(int argc, char **argv)
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int sv_main(int argc UNUSED_PARAM, char **argv)
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{
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unsigned opt;
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unsigned i, want_exit;
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char *x;
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char *action;
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const char *varservice = CONFIG_SV_DEFAULT_SERVICE_DIR;
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unsigned services;
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char **servicex;
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unsigned waitsec = 7;
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smallint kll = 0;
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int verbose = 0;
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@ -438,12 +440,9 @@ int sv_main(int argc, char **argv)
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opt_complementary = "w+:vv"; /* -w N, -v is a counter */
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opt = getopt32(argv, "w:v", &waitsec, &verbose);
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argc -= optind;
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argv += optind;
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action = *argv++;
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if (!action || !*argv) bb_show_usage();
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service = argv;
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services = argc - 1;
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tnow = time(NULL) + 0x400000000000000aULL;
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tstart = tnow;
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@ -534,20 +533,20 @@ int sv_main(int argc, char **argv)
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bb_show_usage();
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}
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servicex = service;
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for (i = 0; i < services; ++i) {
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if ((**service != '/') && (**service != '.')) {
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service = argv;
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while ((x = *service) != NULL) {
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if (x[0] != '/' && x[0] != '.') {
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if (chdir(varservice) == -1)
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goto chdir_failed_0;
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}
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if (chdir(*service) == -1) {
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if (chdir(x) == -1) {
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chdir_failed_0:
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fail("cannot change to service directory");
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goto nullify_service_0;
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}
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if (act && (act(acts) == -1)) {
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nullify_service_0:
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*service = NULL;
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*service = (char*) -1L; /* "dead" */
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}
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if (fchdir(curdir) == -1)
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fatal_cannot("change to original directory");
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@ -555,19 +554,20 @@ int sv_main(int argc, char **argv)
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}
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if (cbk) while (1) {
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int want_exit;
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int diff;
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diff = tnow - tstart;
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service = servicex;
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service = argv;
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want_exit = 1;
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for (i = 0; i < services; ++i, ++service) {
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if (!*service)
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continue;
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if ((**service != '/') && (**service != '.')) {
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while ((x = *service) != NULL) {
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if (x == (char*) -1L) /* "dead" */
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goto next;
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if (x[0] != '/' && x[0] != '.') {
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if (chdir(varservice) == -1)
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goto chdir_failed;
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}
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if (chdir(*service) == -1) {
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if (chdir(x) == -1) {
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chdir_failed:
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fail("cannot change to service directory");
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goto nullify_service;
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@ -578,17 +578,19 @@ int sv_main(int argc, char **argv)
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if (diff >= waitsec) {
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printf(kll ? "kill: " : "timeout: ");
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if (svstatus_get() > 0) {
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svstatus_print(*service);
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svstatus_print(x);
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++rc;
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}
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bb_putchar('\n'); /* will also flush the output */
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if (kll)
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control("k");
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nullify_service:
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*service = NULL;
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*service = (char*) -1L; /* "dead" */
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}
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if (fchdir(curdir) == -1)
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fatal_cannot("change to original directory");
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next:
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service++;
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}
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if (want_exit) break;
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usleep(420000);
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