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
diff --git a/runit/svlogd.c b/runit/svlogd.c
index 2dc8cb9..1d679c9 100644
--- a/runit/svlogd.c
+++ b/runit/svlogd.c
@@ -265,7 +265,7 @@
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 @@
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;