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Update.

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1998-06-29 12:27  Ulrich Drepper  <drepper@cygnus.com>

	* argp/argp.h: Use __PMT instead of __P for function pointer.
	* iconv/gconv.h: Likewise.
	* io/fts.h: Likewise.
	* io/ftw.h: Likewise.
	* libio/libio.h: Likewise.
	* malloc/mcheck.h: Likewise.
	* misc/search.h: Likewise.
	* posix/glob.h: Likewise.
	* resolv/resolv.h: Likewise.
	* signal/signal.h: Likewise.
	* stdlib/stdlib.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/sigaction.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/siginfo.h: Likewise.

1998-06-26  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* Makeconfig (CPPFLAGS): Use $($(subdir)-CPPFLAGS) only once.

1998-06-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* posix/wordexp.c (parse_param): Fix memory leak.

1998-06-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* libc.map: Export _IO_ftrylockfile.

1998-06-27  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/unix/sysv/linux/aio_sigqueue.c: Use get[pu]id instead of
	__get[pu]id.

1998-06-28  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* elf/dl-misc.c (_dl_debug_message): Don't cache the pid.

	* elf/dl-runtime.c (_dl_object_relocation_scope): Avoid adding the
	same search list twice.

1998-06-29  Andreas Jaeger  <aj@arthur.rhein-neckar.de>

	* login/programs/utmpd.c (handle_requests): Set and use maximal fd
	used to optimize loop/select.

1998-06-24  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* sysdeps/generic/init-first.c: Don't define __libc_pid.
	* sysdeps/unix/sysv/linux/init-first.c: Likewise.
	* sysdeps/mach/hurd/i386/init-first.c: Likewise.
	* sysdeps/mach/hurd/mips/init-first.c: Likewise.
	* sysdeps/arm/init-first.c: Likewise.
	* posix/getopt_init.c: Don't use __libc_pid.
	* sysdeps/unix/sysv/linux/aio_sigqueue.c: Likewise.
	* sysdeps/unix/sysv/linux/sigqueue.c: Likewise.
	* libc.map: Remove __libc_uid and __libc_pid.
This commit is contained in:
Ulrich Drepper
1998-06-29 12:44:22 +00:00
parent ba488034ea
commit fdacb17d48
37 changed files with 348 additions and 196 deletions
Download Patch File Download Diff File Expand all files Collapse all files

61
linuxthreads/manager.c
View File

@@ -37,12 +37,6 @@
struct pthread_handle_struct __pthread_handles[PTHREAD_THREADS_MAX] =
{ { LOCK_INITIALIZER, &__pthread_initial_thread, 0}, /* All NULLs */ };
/* This is a list of terminated, but not detached threads. This can happen
when pthread_join() is called and the pthread_reap_children() function
removes the thread from the live list before processing the FREE_REQ
request. */
static pthread_descr non_detached;
/* Indicate whether at least one thread has a user-defined stack (if 1),
or if all threads have stacks supplied by LinuxThreads (if 0). */
int __pthread_nonstandard_stacks = 0;
@@ -83,7 +77,7 @@ static pthread_t pthread_threads_counter = 0;
static int pthread_handle_create(pthread_t *thread, const pthread_attr_t *attr,
void * (*start_routine)(void *), void *arg,
sigset_t *mask, int father_pid);
static void pthread_handle_free(pthread_descr th);
static void pthread_handle_free(pthread_t th_id);
static void pthread_handle_exit(pthread_descr issuing_thread, int exitcode);
static void pthread_reap_children(void);
static void pthread_kill_all_threads(int sig, int main_thread_also);
@@ -149,7 +143,7 @@ int __pthread_manager(void *arg)
restart(request.req_thread);
break;
case REQ_FREE:
pthread_handle_free(request.req_args.free.thread);
pthread_handle_free(request.req_args.free.thread_id);
break;
case REQ_PROCESS_EXIT:
pthread_handle_exit(request.req_thread,
@@ -406,14 +400,6 @@ static void pthread_exited(pid_t pid)
__pthread_unlock(th->p_lock);
if (detached)
pthread_free(th);
else {
/* Enqueue in the detached list. */
th->p_nextlive = non_detached;
if (non_detached != NULL)
non_detached->p_prevlive = th;
th->p_prevlive = NULL;
non_detached = th;
}
break;
}
}
@@ -445,49 +431,28 @@ static void pthread_reap_children(void)
/* Try to free the resources of a thread when requested by pthread_join
or pthread_detach on a terminated thread. */
static void pthread_handle_free(pthread_descr th)
static void pthread_handle_free(pthread_t th_id)
{
pthread_descr t;
/* Check that the thread th is still there -- pthread_reap_children
might have deallocated it already */
t = __pthread_main_thread;
do {
if (t == th) break;
t = t->p_nextlive;
} while (t != __pthread_main_thread);
if (t != th) {
/* Hum, it might be that the thread already was dequeued but
wasn't detached. In the case the thread is already detached
and we cannot find it this is a user bug but we must be
gracious. */
t = non_detached;
while (t != NULL) {
if (t == th) break;
t = t->p_nextlive;
}
if (t == th) {
if (th->p_prevlive == NULL)
non_detached = th->p_nextlive;
else
th->p_prevlive->p_nextlive = th->p_nextlive;
if (th->p_nextlive != NULL)
th->p_nextlive->p_prevlive = th->p_prevlive;
pthread_handle handle = thread_handle(th_id);
pthread_descr th;
/* Finally free it. */
pthread_free (th);
}
__pthread_lock(&handle->h_lock);
if (invalid_handle(handle, th_id)) {
/* pthread_reap_children has deallocated the thread already,
nothing needs to be done */
__pthread_unlock(&handle->h_lock);
return;
}
__pthread_lock(th->p_lock);
th = handle->h_descr;
if (th->p_exited) {
__pthread_unlock(th->p_lock);
__pthread_unlock(&handle->h_lock);
pthread_free(th);
} else {
/* The Unix process of the thread is still running.
Mark the thread as detached so that the thread manager will
deallocate its resources when the Unix process exits. */
th->p_detached = 1;
__pthread_unlock(th->p_lock);
__pthread_unlock(&handle->h_lock);
}
}