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libbb: introduce and use safe_waitpid (loops in EINTR)

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*: 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
This commit is contained in:
Denis Vlasenko
2008-01-02 19:55:04 +00:00
parent 27963980db
commit fb0eba706c
18 changed files with 51 additions and 55 deletions
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1
shell/hush.c
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@@ -1649,6 +1649,7 @@ static int checkjobs(struct pipe* fg_pipe)
// + killall -STOP cat
wait_more:
// TODO: safe_waitpid?
while ((childpid = waitpid(-1, &status, attributes)) > 0) {
const int dead = WIFEXITED(status) || WIFSIGNALED(status);