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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
------------------------------------------------------------------------------
(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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7
archival/libunarchive/data_extract_to_command.c
View File

@@ -82,11 +82,8 @@ void FAST_FUNC data_extract_to_command(archive_handle_t *archive_handle)
memset(tar_env, 0, sizeof(tar_env));
xpipe(p);
pid = BB_MMU ? fork() : vfork();
switch (pid) {
case -1:
bb_perror_msg_and_die(BB_MMU ? "fork" : "vfork");
case 0:
pid = BB_MMU ? xfork() : xvfork();
if (pid == 0) {
/* Child */
/* str2env(tar_env, TAR_FILETYPE, "f"); - parent should do it once */
oct2env(tar_env, TAR_MODE, file_header->mode);

14
archival/libunarchive/open_transformer.c
View File

@@ -19,19 +19,9 @@ void FAST_FUNC open_transformer(int fd,
int pid;
xpiped_pair(fd_pipe);
#if BB_MMU
pid = fork();
if (pid == -1)
bb_perror_msg_and_die("vfork" + 1);
#else
pid = vfork();
if (pid == -1)
bb_perror_msg_and_die("vfork");
#endif
pid = BB_MMU ? xfork() : xvfork();
if (pid == 0) {
/* child process */
/* Child */
close(fd_pipe.rd); /* we don't want to read from the parent */
// FIXME: error check?
#if BB_MMU

4
archival/tar.c
View File

@@ -514,9 +514,7 @@ static void NOINLINE vfork_compressor(int tar_fd, int gzip)
(void) &zip_exec;
# endif
gzipPid = vfork();
if (gzipPid < 0)
bb_perror_msg_and_die("vfork");
gzipPid = xvfork();
if (gzipPid == 0) {
/* child */