*: introduce and use xfork()

function                                             old     new   delta
xfork                                                  -      20     +20
msh_main                                            1377    1380      +3
mod_process                                          455     446      -9
forkexit_or_rexec                                     30      17     -13
expand_variables                                    1434    1421     -13
open_transformer                                      91      76     -15
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 1/4 up/down: 23/-50)            Total: -27 bytes
This commit is contained in:
Denis Vlasenko
2008-07-01 11:11:24 +00:00
parent 49b5c516b5
commit 58d60c3333
7 changed files with 19 additions and 18 deletions

View File

@@ -238,9 +238,7 @@ void FAST_FUNC forkexit_or_rexec(char **argv)
void FAST_FUNC forkexit_or_rexec(void)
{
pid_t pid;
pid = fork();
if (pid < 0) /* wtf? */
bb_perror_msg_and_die("fork");
pid = xfork();
if (pid) /* parent */
exit(EXIT_SUCCESS);
/* child */

View File

@@ -16,3 +16,13 @@ pid_t FAST_FUNC xvfork(void)
bb_perror_msg_and_die("vfork");
return pid;
}
#if BB_MMU
pid_t FAST_FUNC xfork(void)
{
pid_t pid = fork();
if (pid < 0)
bb_perror_msg_and_die("vfork" + 1);
return pid;
}
#endif