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glibc/nptl/pthreadP.h
Ulrich Drepper 76a50749f7 Initial revision 
2002-11-26  Ulrich Drepper  <drepper@redhat.com>
	* allocatestack.c (queue_stack): Don't remove stack from list here.
	Do it in the caller.  Correct condition to prematurely terminate
	loop to free stacks.
	(__deallocate_stack): Remove stack from list here.
2002-11-26  Ulrich Drepper  <drepper@redhat.com>
	* Makefile (tests): Add tst-stack1.
	* tst-stack1.c: New file.
	* allocatestack.c (allocate_stack): Initialize the TCB on a user
	provided stack.
	* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25  Ulrich Drepper  <drepper@redhat.com>
	* Makefile (libpthread-routines): Add pt-allocrtsig and
	pthread_kill_other_threads.
	* pt-allocrtsig.c: New file.
	* pthread_kill_other_threads.c: New file.
	* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
	all three functions.
	* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
	allocrtsig.
	* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
	__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
	and __libc_allocate_rtsig_private.
	* Versions (libpthread): Export pthread_kill_other_threads_np,
	__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24  Ulrich Drepper  <drepper@redhat.com>

	* allocatestack.c (allocate_stack): stackaddr in attribute points to
	the end of the stack.  Adjust computations.
	When mprotect call fails dequeue stack and free it.
	* pthread_attr_setstack.c: Store top of the stack in stackaddr
	attribute.
	* pthread_getattr_np.c: Likewise.

	* descr.h (IS_DETACHED): Add some more parenthesis to prevent
	surprises.

2002-11-23  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
	attribute definitions.  Patch by Luca Barbieri <ldb@ldb.ods.org>.

2002-11-22  Ulrich Drepper  <drepper@redhat.com>

	* pthread_getspecific.c: Optimize access to first 2nd-level array.
	* pthread_setspecific.c: Likewise.

2002-11-21  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
	definitions.  Get them from the official place.
	* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.

	* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
	Use new CLONE_ flags in clone() calls.

	* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
	* sysdeps/unix/sysv/linux/i386/fork.c: New file.

	* Versions: Add pthread_* functions for libc.
	* forward.c: New file.

	* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
	errno-loc.
	* herrno.c: New file.
	* res.c: New file.

	* Makefile (libpthread-routines): Remove sem_post, sem_wait,
	sem_trywait, and sem_timedwait.  Add herrno and res.
	* sem_init.c: Don't initialize lock and waiters members.
	* sem_open.c: Likewise.
	* sem_post.c: Removed.
	* sem_wait.c: Removed.
	* sem_trywait.c: Removed.
	* sem_timedwait.c: Removed.
	* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
	Includes full implementations of sem_post, sem_wait, sem_trywait,
	and sem_timedwait.
	* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
	for new implementation.
	* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
	and waiters fields.

	* tst-sem3.c: Improve error message.
	* tst-signal3.c: Likewise.

	* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
	to tell the kernel about the termination futex and to initialize tid
	member.  Don't initialize main_thread.
	* descr.h (struct pthread): Remove main_thread member.
	* cancelllation.c (__do_cancel): Remove code handling main thread.
	The main thread is not special anymore.

	* allocatestack.c (__reclaim_stacks): Mark stacks as unused.  Add
	size of the stacks to stack_cache_actsize.

	* pt-readv.c: Add missing "defined".
	* pt-sigwait.c: Likewise.
	* pt-writev.c: Likewise.

2002-11-09  Ulrich Drepper  <drepper@redhat.com>

	* Versions: Export __connect from libpthread.
	Patch by Luca Barbieri <ldb@ldb.ods.org>.

	* Makefile (libpthread-routines): Add pt-raise.
	* sysdeps/unix/sysv/linux/raise.c: New file.
	* sysdeps/unix/sysv/linux/pt-raise.c: New file.
	* sysdeps/generic/pt-raise.c: New file.

	* pthread_cond_init.c: Initialize all data elements of the condvar
	structure.  Patch by Luca Barbieri <ldb@ldb.ods.org>.

	* pthread_attr_init.c: Actually implement 2.0 compatibility version.
	* pthread_create.c: Likewise.

	* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
	* tst-key1.c: New file.
	* tst-key2.c: New file.
	* tst-key3.c: New file.

	* Versions: Export pthread_detach for version GLIBC_2.0.
	Reported by Saurabh Desai <sdesai@austin.ibm.com>.

2002-11-08  Ulrich Drepper  <drepper@redhat.com>

	* pthread_key_create.c: Terminate search after an unused key was found.
	Patch by Luca Barbieri <ldb@ldb.ods.org>.

	* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
	Patch by Luca Barbieri <ldb@ldb.ods.org>.

2002-10-10  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
	dynamic lookup for errno in PIC.

	* allocatestack.c (get_cached_stack): Rearrange code slightly to
	release the stack lock as soon as possible.
	Call _dl_allocate_tls_init for TCB from the cache to re-initialize
	the static TLS block.
	(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.

	* cancellation.c: Renamed from cancelation.c.
	* Makefile: Adjust accordingly.
	* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
	* cleanup_defer.c: Use CANCELLATION_P.
	* pthread_testcancel.c: Likewise.
	* descr.h: Fix spelling in comments.
	* init.c: Likewise.
	* pthread_getattr_np.c: Likewise.
	* pthread_getschedparam.c: Likewise.
	* pthread_setschedparam.c: Likewise.
	* Versions: Likewise.

	* pt-pselect.c: New file.
	* Makefile (libpthread-routines): Add pt-pselect.
	* Versions: Add pselect.

	* tst-cancel4.c: New file.
	* Makefile (tests): Add tst-cancel4.

2002-10-09  Ulrich Drepper  <drepper@redhat.com>

	* pthread_mutex_lock.c: Always record lock ownership.
	* pthread_mutex_timedlock.c: Likewise.
	* pthread_mutex_trylock.c: Likewise.

	* pt-readv.c: New file.
	* pt-writev.c: New file.
	* pt-creat.c: New file.
	* pt-msgrcv.c: New file.
	* pt-msgsnd.c: New file.
	* pt-poll.c: New file.
	* pt-select.c: New file.
	* pt-sigpause.c: New file.
	* pt-sigsuspend.c: New file.
	* pt-sigwait.c: New file.
	* pt-sigwaitinfo.c: New file.
	* pt-waitid.c: New file.
	* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
	pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
	pt-sigwait, pt-sigwaitinfo, and pt-waitid.
	* Versions: Add all the new functions.

	* tst-exit1.c: New file.
	* Makefile (tests): Add tst-exit1.

	* sem_timedwait.c: Minor optimization for more optimal fastpath.

2002-10-08  Ulrich Drepper  <drepper@redhat.com>

	* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.

	* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
	call.  pthread_join is an official cancellation point.
	* pthread_timedjoin.c: Likewise.

	* pthread_cond_wait.c: Revert order in which internal lock are dropped
	and the condvar's mutex are retrieved.
	* pthread_cond_timedwait.c: Likewise.
	Reported by dice@saros.East.Sun.COM.

2002-10-07  Ulrich Drepper  <drepper@redhat.com>

	* pthreadP.h: Cut out all type definitions and move them...
	* sysdeps/unix/sysv/linux/internaltypes.h: ...here.  New file.
	* pthreadP.h: Include <internaltypes.h>.

	* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
	performance tweaks.

	* sem_trywait.c: Shuffle #includes around to get right order.
	* sem_timedwait.c: Likewise.
	* sem_post.c: Likewise.
	* sem_wait.c: Likewise.

	* nptl 0.3 released.

	* Makefile (tests): Add tst-signal3.
	* tst-signal3.c: New file.

2002-10-05  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
	the asms modify the sem object.
	(__lll_sem_timedwait): Now takes struct sem* as first parameter.

	* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
	the actual members.
	* pthreadP.h (struct sem): New type.  Actual semaphore type.
	* semaphoreP.h: Include pthreadP.h.
	* sem_getvalue.c: Adjust to sem_t change.
	* sem_init.c: Likewise.
	* sem_open.c: Likewise.
	* sem_post.c: Likewise.
	* sem_timedwait.c: Likewise.
	* sem_trywait.c: Likewise.
	* sem_wait.c: Likewise.

2002-10-04  Ulrich Drepper  <drepper@redhat.com>

	* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
	* tst-basic2.c: New file.
	* tst-exec1.c: New file.
	* tst-exec2.c: New file.
	* tst-exec3.c: New file.

	* tst-fork1.c: Remove extra */.

	* nptl 0.2 released.  The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00

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/* Copyright (C) 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _PTHREADP_H
#define _PTHREADP_H 1
#include <pthread.h>
#include <setjmp.h>
#include <stdint.h>
#include <sys/syscall.h>
#include "descr.h"
#include <tls.h>
#include <lowlevellock.h>
#include <stackinfo.h>
#include <internaltypes.h>
/* Internal variables. */
/* Default stack size. */
extern size_t __default_stacksize attribute_hidden;
/* Size and alignment of static TLS block. */
extern size_t __static_tls_size attribute_hidden;
extern size_t __static_tls_align attribute_hidden;
/* Thread descriptor handling. */
extern list_t __stack_user attribute_hidden;
/* Attribute handling. */
extern struct pthread_attr *__attr_list attribute_hidden;
extern lll_lock_t __attr_list_lock attribute_hidden;
/* First available RT signal. */
extern int __current_sigrtmin attribute_hidden;
/* Last available RT signal. */
extern int __current_sigrtmax attribute_hidden;
/* Concurrency handling. */
extern int __concurrency_level attribute_hidden;
/* Thread-local data key handling. */
extern struct pthread_key_struct __pthread_keys[PTHREAD_KEYS_MAX]
attribute_hidden;
/* The library can run in debugging mode where it performs a lot more
tests. */
extern int __pthread_debug attribute_hidden;
#define DEBUGGING_P __builtin_expect (__pthread_debug, 0)
/* Cancellation test. */
#define CANCELLATION_P(self) \
do { \
int cancelhandling = THREAD_GETMEM (self, cancelhandling); \
if (CANCEL_ENABLED_AND_CANCELED (cancelhandling)) \
{ \
THREAD_SETMEM (self, result, PTHREAD_CANCELED); \
__do_cancel (CURRENT_STACK_FRAME); \
} \
} while (0)
/* Set cancellation mode to asynchronous. */
#define CANCEL_ASYNC(oldtype) \
pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &oldtype)
/* Reset to previous cancellation mode. */
#define CANCEL_RESET(oldtype) \
pthread_setcanceltype (oldtype, NULL)
/* Function performing the cancellation. */
extern void __do_cancel (char *currentframe)
__attribute ((visibility ("hidden"), noreturn, regparm (1)));
extern void __cleanup_thread (struct pthread *self, char *currentframe)
__attribute ((visibility ("hidden"), regparm (2)));
/* Test whether stackframe is still active. */
#ifdef _STACK_GROWS_DOWN
# define FRAME_LEFT(frame, other) ((char *) frame >= (char *) other)
#elif _STACK_GROWS_UP
# define FRAME_LEFT(frame, other) ((char *) frame <= (char *) other)
#else
# error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP"
#endif
/* Internal prototypes. */
/* Thread list handling. */
extern struct pthread *__find_in_stack_list (struct pthread *pd)
attribute_hidden;
/* Deallocate a thread's stack after optionally making sure the thread
descriptor is still valid. */
extern void __free_tcb (struct pthread *pd) attribute_hidden;
/* Free allocated stack. */
extern void __deallocate_stack (struct pthread *pd) attribute_hidden;
/* Mark all the stacks except for the current one as available. This
function also re-initializes the lock for the stack cache. */
extern void __reclaim_stacks (void) attribute_hidden;
/* longjmp handling. */
extern void __pthread_cleanup_upto (__jmp_buf target, char *targetframe);
/* Functions with versioned interfaces. */
extern int __pthread_create_2_1 (pthread_t *newthread,
const pthread_attr_t *attr,
void *(*start_routine) (void *), void *arg);
extern int __pthread_create_2_0 (pthread_t *newthread,
const pthread_attr_t *attr,
void *(*start_routine) (void *), void *arg);
extern int __pthread_attr_init_2_1 (pthread_attr_t *attr);
extern int __pthread_attr_init_2_0 (pthread_attr_t *attr);
/* Event handlers for libthread_db interface. */
extern void __nptl_create_event (void) attribute_hidden;
extern void __nptl_death_event (void) attribute_hidden;
/* Namespace save aliases. */
extern int __pthread_mutex_init (pthread_mutex_t *__mutex,
__const pthread_mutexattr_t *__mutexattr);
extern int __pthread_mutex_destroy (pthread_mutex_t *__mutex);
extern int __pthread_mutex_trylock (pthread_mutex_t *_mutex);
extern int __pthread_mutex_lock (pthread_mutex_t *__mutex);
extern int __pthread_mutex_unlock (pthread_mutex_t *__mutex);
extern int __pthread_mutexattr_init (pthread_mutexattr_t *attr);
extern int __pthread_mutexattr_destroy (pthread_mutexattr_t *attr);
extern int __pthread_mutexattr_settype (pthread_mutexattr_t *attr, int kind);
extern int __pthread_attr_getstackaddr (__const pthread_attr_t *__restrict
__attr, void **__restrict __stackaddr);
extern int __pthread_attr_setstackaddr (pthread_attr_t *__attr,
void *__stackaddr);
extern int __pthread_attr_getstacksize (__const pthread_attr_t *__restrict
__attr,
size_t *__restrict __stacksize);
extern int __pthread_attr_setstacksize (pthread_attr_t *__attr,
size_t __stacksize);
extern int __pthread_attr_getstack (__const pthread_attr_t *__restrict __attr,
void **__restrict __stackaddr,
size_t *__restrict __stacksize);
extern int __pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr,
size_t __stacksize);
extern int __pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock,
__const pthread_rwlockattr_t *__restrict
__attr);
extern int __pthread_rwlock_destroy (pthread_rwlock_t *__rwlock);
extern int __pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock);
extern int __pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock);
extern int __pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock);
extern int __pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock);
extern int __pthread_rwlock_unlock (pthread_rwlock_t *__rwlock);
extern int __pthread_key_create (pthread_key_t *key, void (*destr) (void *));
extern void *__pthread_getspecific (pthread_key_t key);
extern int __pthread_setspecific (pthread_key_t key, const void *value);
extern int __pthread_once (pthread_once_t *once_control,
void (*init_routine) (void));
extern int __pthread_atfork (void (*prepare) (void), void (*parent) (void),
void (*child) (void));
#endif /* pthreadP.h */
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