JehanneOS/jehanne
1
0
Fork 0
Code Issues Pull Requests Projects Releases Activity

libposix: allow custom translations of exit status

Browse Source
This commit is contained in:
Giacomo Tesio
2017-04-21 23:56:43 +02:00
parent 188a07782d
commit 4142b70d32
2 changed files with 39 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
sys/src/lib/posix/processes.c
View File

@ -23,17 +23,23 @@
extern char **environ;
static PosixSignalTrampoline __libposix_signal_trampoline;
static PosixExitStatusTranslator __libposix_exit_status_translator;
#define __POSIX_SIGNAL_PREFIX_LEN (sizeof(__POSIX_SIGNAL_PREFIX)-1)
void
POSIX_exit(int code)
{
char buf[64];
char buf[64], *s;
if(code == 0)
exits(nil);
snprint(buf, sizeof(buf), __POSIX_EXIT_PREFIX "%d", code);
if(__libposix_exit_status_translator != nil
&&(s = __libposix_exit_status_translator(code)) != nil){
snprint(buf, sizeof(buf), "%s", s);
} else {
if(code == 0)
exits(nil);
snprint(buf, sizeof(buf), __POSIX_EXIT_PREFIX "%d", code);
}
exits(buf);
}
@ -175,6 +181,17 @@ __libposix_note_handler(void *ureg, char *note)
return __libposix_signal_trampoline(sig);
}
int
libposix_translate_exit_status(PosixExitStatusTranslator translator)
{
if(__libposix_initialized())
return 0;
if(translator == nil)
return 0;
__libposix_exit_status_translator = translator;
return 1;
}
int
libposix_set_signal_trampoline(PosixSignalTrampoline trampoline)
{
@ -191,4 +208,5 @@ __libposix_processes_check_conf(void)
{
if(__libposix_signal_trampoline == nil)
sysfatal("libposix: no signal trampoline");
/* __libposix_exit_status_translator is optional */
}