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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-01-02 19:55:04 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-01-02 19:55:04 +0000
commitfb0eba706cccd510d99c4c5339a76dd15bc8a628 (patch)
tree45122b93a1a5d628e4aa146251e34397094de817 /runit
parent27963980dbe1262fd6c447fc7d06839aea0861bc (diff)
downloadbusybox-fb0eba706cccd510d99c4c5339a76dd15bc8a628.tar.gz
busybox-fb0eba706cccd510d99c4c5339a76dd15bc8a628.tar.bz2
libbb: introduce and use safe_waitpid (loops in EINTR)
*: use more approproate (shorter) versions of wait() function old new delta safe_waitpid - 48 +48 wait_any_nohang - 17 +17 send_tree 365 369 +4 processorstop 432 435 +3 text_yank 110 108 -2 make_human_readable_str 202 200 -2 crond_main 1368 1366 -2 handle_sigchld 49 43 -6 reapchild 166 159 -7 custom 260 250 -10 checkscript 191 177 -14 wait_nohang 17 - -17 wait_pid 43 - -43 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 2/7 up/down: 72/-103) Total: -31 bytes
Diffstat (limited to 'runit')
-rw-r--r--runit/runsv.c5
-rw-r--r--runit/runsvdir.c2
-rw-r--r--runit/sv.c3
-rw-r--r--runit/svlogd.c4
4 files changed, 6 insertions, 8 deletions
diff --git a/runit/runsv.c b/runit/runsv.c
index 8c5a4d4ea..84f5193f5 100644
--- a/runit/runsv.c
+++ b/runit/runsv.c
@@ -282,8 +282,7 @@ static unsigned custom(struct svdir *s, char c)
execve(a, prog, environ);
fatal_cannot("run control/?");
}
- while (wait_pid(&w, pid) == -1) {
- if (errno == EINTR) continue;
+ while (safe_waitpid(pid, &w, 0) == -1) {
warn_cannot("wait for child control/?");
return 0;
}
@@ -593,7 +592,7 @@ int runsv_main(int argc, char **argv)
int child;
int wstat;
- child = wait_nohang(&wstat);
+ child = wait_any_nohang(&wstat);
if (!child)
break;
if ((child == -1) && (errno != EINTR))
diff --git a/runit/runsvdir.c b/runit/runsvdir.c
index 9e98ca6f8..838490376 100644
--- a/runit/runsvdir.c
+++ b/runit/runsvdir.c
@@ -252,7 +252,7 @@ int runsvdir_main(int argc, char **argv)
for (;;) {
/* collect children */
for (;;) {
- pid = wait_nohang(&wstat);
+ pid = wait_any_nohang(&wstat);
if (pid <= 0)
break;
for (i = 0; i < svnum; i++) {
diff --git a/runit/sv.c b/runit/sv.c
index e31adffed..a89e24439 100644
--- a/runit/sv.c
+++ b/runit/sv.c
@@ -333,8 +333,7 @@ static int checkscript(void)
bb_perror_msg(WARN"cannot %s child %s/check", "run", *service);
return 0;
}
- while (wait_pid(&w, pid) == -1) {
- if (errno == EINTR) continue;
+ while (safe_waitpid(pid, &w, 0) == -1) {
bb_perror_msg(WARN"cannot %s child %s/check", "wait for", *service);
return 0;
}
diff --git a/runit/svlogd.c b/runit/svlogd.c
index 2dc8cb987..1d679c972 100644
--- a/runit/svlogd.c
+++ b/runit/svlogd.c
@@ -265,7 +265,7 @@ static unsigned processorstop(struct logdir *ld)
if (ld->ppid) {
sig_unblock(SIGHUP);
- while (wait_pid(&wstat, ld->ppid) == -1)
+ while (safe_waitpid(ld->ppid, &wstat, 0) == -1)
pause2cannot("wait for processor", ld->name);
sig_block(SIGHUP);
ld->ppid = 0;
@@ -794,7 +794,7 @@ static void sig_child_handler(int sig_no)
if (verbose)
bb_error_msg(INFO"sig%s received", "child");
- while ((pid = wait_nohang(&wstat)) > 0) {
+ while ((pid = wait_any_nohang(&wstat)) > 0) {
for (l = 0; l < dirn; ++l) {
if (dir[l].ppid == pid) {
dir[l].ppid = 0;