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authorGravatar Pascal Bellard <pascal.bellard@ads-lu.com>2010-07-04 15:32:38 +0200
committerGravatar Denys Vlasenko <vda.linux@googlemail.com>2010-07-04 15:32:38 +0200
commit926031b7640bf5aad2ffcd54b096911743a47d97 (patch)
tree093e0e1bab2c905a97c5880e4942e2000ada7e72 /shell
parent243d1757d798a0cd43f51eb1db75cc1e81c65732 (diff)
downloadbusybox-926031b7640bf5aad2ffcd54b096911743a47d97.tar.gz
busybox-926031b7640bf5aad2ffcd54b096911743a47d97.tar.bz2
*: introduce and use xfork() and xvfork()
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 ------------------------------------------------------------------------------ (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>
Diffstat (limited to 'shell')
-rw-r--r--shell/hush.c15
1 files changed, 4 insertions, 11 deletions
diff --git a/shell/hush.c b/shell/hush.c
index 29ff3c442..831443e2e 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -3208,15 +3208,11 @@ static void setup_heredoc(struct redir_struct *redir)
#if !BB_MMU
to_free = NULL;
#endif
- pid = vfork();
- if (pid < 0)
- bb_perror_msg_and_die("vfork");
+ pid = xvfork();
if (pid == 0) {
/* child */
disable_restore_tty_pgrp_on_exit();
- 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)
_exit(0);
/* grandchild */
@@ -4450,7 +4446,7 @@ static NOINLINE int run_pipe(struct pipe *pi)
argv_expanded = NULL;
if (command->pid < 0) { /* [v]fork failed */
/* Clearly indicate, was it fork or vfork */
- bb_perror_msg(BB_MMU ? "fork" : "vfork");
+ bb_perror_msg(BB_MMU ? "vfork"+1 : "vfork");
} else {
pi->alive_cmds++;
#if ENABLE_HUSH_JOB
@@ -5586,10 +5582,7 @@ static FILE *generate_stream_from_string(const char *s, pid_t *pid_p)
# endif
xpipe(channel);
- 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 */
disable_restore_tty_pgrp_on_exit();
/* Process substitution is not considered to be usual