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*: introduce and use xfork() and xvfork()

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function                                             old     new   delta
launch_helper                                        170     169      -1
setup_heredoc                                        312     302     -10
handle_dir_common                                    367     354     -13
expand_vars_to_list                                 2456    2443     -13
open_transformer                                      89      74     -15
data_extract_to_command                              439     423     -16
do_ipaddr                                           1406    1389     -17
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(add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-85)             Total: -85 bytes

Signed-off-by: Pascal Bellard <pascal.bellard@ads-lu.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Pascal Bellard
2010-07-04 15:32:38 +02:00
committed by Denys Vlasenko
parent 243d1757d7
commit 926031b764
21 changed files with 56 additions and 95 deletions
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5
networking/ftpd.c
View File

@@ -632,10 +632,7 @@ popen_ls(const char *opt)
xpiped_pair(outfd);
/*fflush_all(); - so far we dont use stdio on output */
pid = BB_MMU ? fork() : vfork();
if (pid < 0)
bb_perror_msg_and_die(BB_MMU ? "fork" : "vfork");
pid = BB_MMU ? xfork() : xvfork();
if (pid == 0) {
/* child */
#if !BB_MMU

8
networking/ifupdown.c
View File

@@ -1041,12 +1041,10 @@ static int popen2(FILE **in, FILE **out, char *command, char *param)
xpiped_pair(outfd);
fflush_all();
pid = vfork();
pid = xvfork();
switch (pid) {
case -1: /* failure */
bb_perror_msg_and_die("vfork");
case 0: /* child */
if (pid == 0) {
/* Child */
/* NB: close _first_, then move fds! */
close(infd.wr);
close(outfd.rd);

2
networking/inetd.c
View File

@@ -1271,7 +1271,7 @@ int inetd_main(int argc UNUSED_PARAM, char **argv)
pid = vfork();
if (pid < 0) { /* fork error */
bb_perror_msg("fork");
bb_perror_msg("vfork"+1);
sleep(1);
restore_sigmask(&omask);
maybe_close(accepted_fd);

6
networking/nc.c
View File

@@ -216,10 +216,8 @@ int nc_main(int argc, char **argv)
if (execparam) {
pid_t pid;
/* With more than one -l, repeatedly act as server */
if (do_listen > 1 && (pid = vfork()) != 0) {
/* parent or error */
if (pid < 0)
bb_perror_msg_and_die("vfork");
if (do_listen > 1 && (pid = xvfork()) != 0) {
/* parent */
/* prevent zombies */
signal(SIGCHLD, SIG_IGN);
close(cfd);