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atexit() is now thread-safe.

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Now calls _IO_cleanup() instead of __cleanup() to be able to be compiled
against glibc stdio as well.
Renamed variables to be much nicer.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3148 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2003-05-03 14:47:56 +00:00
parent f57208999e
commit 6e5e43433e
1 changed files with 17 additions and 17 deletions
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src/kernel/libroot/posix/stdlib/exit.c
+17 -17
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@@ -14,21 +14,20 @@
* *
*/ */
#include <syscalls.h> #include <syscalls.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <signal.h> #include <signal.h>
#include <limits.h> #include <limits.h>
// ToDo: move this puppy to a more standard location
#include "../stdio/local.h" #include "../stdio/local.h"
//#include "stdio_private.h"
extern void _thread_do_exit_notification(void); extern void _thread_do_exit_notification(void);
static void (*_gExitStack[ATEXIT_MAX])(void) = {0};
static void (*_Exit_Stack[ATEXIT_MAX])(void) = {0}; static int32 _gExitStackIndex = 0;
static int _Exit_SP = 0;
void void
@@ -43,13 +42,13 @@ int
atexit(void (*func)(void)) atexit(void (*func)(void))
{ {
// push the function pointer onto the exit stack // push the function pointer onto the exit stack
int32 index = atomic_add(&_gExitStackIndex, 1);
if (_Exit_SP < ATEXIT_MAX) {
_Exit_Stack[_Exit_SP++] = func; if (index >= ATEXIT_MAX)
return 0; return -1;
}
_gExitStack[index] = func;
return -1; return 0;
} }
@@ -60,12 +59,13 @@ exit(int status)
_thread_do_exit_notification(); _thread_do_exit_notification();
// unwind the exit stack, calling the registered functions // unwind the exit stack, calling the registered functions
while (_Exit_SP > 0) while (_gExitStackIndex-- > 0)
(*_Exit_Stack[--_Exit_SP])(); (*_gExitStack[_gExitStackIndex])();
// close all open files // close all open files
(*__cleanup)(); _IO_cleanup();
// exit with status code // exit with status code
sys_exit(status); sys_exit(status);
} }