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* hurd/Makefile (routines): Add hurdlock. * hurd/Versions (GLIBC_PRIVATE): Added new entry to export the above interface. (HURD_CTHREADS_0.3): Remove __libc_getspecific. * hurd/hurdpid.c: Include <lowlevellock.h> (_S_msg_proc_newids): Use lll_wait to synchronize. * hurd/hurdsig.c: (reauth_proc): Use __mutex_lock and __mutex_unlock. * hurd/setauth.c: Include <hurdlock.h>, use integer for synchronization. * mach/Makefile (lock-headers): Remove machine-lock.h. * mach/lock-intern.h: Include <lowlevellock.h> instead of <machine-lock.h>. (__spin_lock_t): New type. (__SPIN_LOCK_INITIALIZER): New macro. (__spin_lock, __spin_unlock, __spin_try_lock, __spin_lock_locked, __mutex_init, __mutex_lock_solid, __mutex_unlock_solid, __mutex_lock, __mutex_unlock, __mutex_trylock): Use lll to implement locks. * mach/mutex-init.c: Include <lowlevellock.h> instead of <cthreads.h>. (__mutex_init): Initialize with lll. * manual/errno.texi (EOWNERDEAD, ENOTRECOVERABLE): New errno values. * sysdeps/mach/Makefile: Add libmachuser as dependencies for libs needing lll. * sysdeps/mach/hurd/bits/errno.h: Regenerate. * sysdeps/mach/hurd/cthreads.c (__libc_getspecific): Remove function. * sysdeps/mach/hurd/bits/libc-lock.h: Remove file. * sysdeps/mach/hurd/setpgid.c: Include <lowlevellock.h>. (__setpgid): Use lll for synchronization. * sysdeps/mach/hurd/setsid.c: Likewise with __setsid. * sysdeps/mach/bits/libc-lock.h: Include <tls.h> and <lowlevellock.h> instead of <cthreads.h>. (_IO_lock_inexpensive): New macro (__libc_lock_recursive_t, __rtld_lock_recursive_t): New structures. (__libc_lock_self0): New declaration. (__libc_lock_owner_self): New macro. (__libc_key_t): Remove type. (_LIBC_LOCK_INITIALIZER): New macro. (__libc_lock_define_initialized, __libc_lock_init, __libc_lock_fini, __libc_lock_fini_recursive, __rtld_lock_fini_recursive, __libc_lock_lock, __libc_lock_trylock, __libc_lock_unlock, __libc_lock_define_initialized_recursive, __rtld_lock_define_initialized_recursive, __libc_lock_init_recursive, __libc_lock_trylock_recursive, __libc_lock_lock_recursive, __libc_lock_unlock_recursive, __rtld_lock_initialize, __rtld_lock_trylock_recursive, __rtld_lock_lock_recursive, __rtld_lock_unlock_recursive __libc_once_define, __libc_mutex_unlock): Reimplement with lll. (__libc_lock_define_recursive, __rtld_lock_define_recursive, _LIBC_LOCK_RECURSIVE_INITIALIZER, _RTLD_LOCK_RECURSIVE_INITIALIZER): New macros. Include <libc-lockP.h> to reimplement libc_key* with pthread_key*. * hurd/hurdlock.c: New file. * hurd/hurdlock.h: New file. * mach/lowlevellock.h: New file
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/* Copyright (C) 1991-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <hurd.h>
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#include <lowlevellock.h>
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pid_t _hurd_pid, _hurd_ppid, _hurd_pgrp;
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int _hurd_orphaned;
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static void
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init_pids (void)
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{
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__USEPORT (PROC,
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({
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__proc_getpids (port, &_hurd_pid, &_hurd_ppid, &_hurd_orphaned);
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__proc_getpgrp (port, _hurd_pid, &_hurd_pgrp);
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}));
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(void) &init_pids; /* Avoid "defined but not used" warning. */
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}
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text_set_element (_hurd_proc_subinit, init_pids);
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#include <hurd/msg_server.h>
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#include "set-hooks.h"
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#include <cthreads.h>
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DEFINE_HOOK (_hurd_pgrp_changed_hook, (pid_t));
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/* These let user threads synchronize with an operation which changes ids. */
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unsigned int _hurd_pids_changed_stamp;
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struct condition _hurd_pids_changed_sync;
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kern_return_t
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_S_msg_proc_newids (mach_port_t me,
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task_t task,
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pid_t ppid, pid_t pgrp, int orphaned)
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{
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int pgrp_changed;
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if (task != __mach_task_self ())
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return EPERM;
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__mach_port_deallocate (__mach_task_self (), task);
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pgrp_changed = pgrp != _hurd_pgrp;
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_hurd_ppid = ppid;
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_hurd_pgrp = pgrp;
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_hurd_orphaned = orphaned;
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if (pgrp_changed)
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/* Run things that want notification of a pgrp change. */
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RUN_HOOK (_hurd_pgrp_changed_hook, (pgrp));
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/* Notify any waiting user threads that the id change as been completed. */
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++_hurd_pids_changed_stamp;
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lll_wake (&_hurd_pids_changed_stamp, GSYNC_BROADCAST);
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return 0;
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}
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