diff -urN a/ports/sysdeps/unix/sysv/linux/hppa/internaltypes.h b/ports/sysdeps/unix/sysv/linux/hppa/internaltypes.h --- a/ports/sysdeps/unix/sysv/linux/hppa/internaltypes.h 1969-12-31 19:00:00.000000000 -0500 +++ b/ports/sysdeps/unix/sysv/linux/hppa/internaltypes.h 2009-09-03 16:01:13.000000000 -0400 @@ -0,0 +1,79 @@ +#include_next +#ifndef _INTERNAL_TYPES_H_HPPA_ +#define _INTERNAL_TYPES_H_HPPA_ 1 +#include + +/* In GLIBC 2.10 HPPA switched from Linuxthreads to NPTL, and in order +to maintain ABI compatibility with pthread_cond_t, some care had to be +taken. + +The NPTL pthread_cond_t grew in size. When HPPA switched to NPTL, we +dropped the use of ldcw, and switched to the kernel helper routine for +compare-and-swap. This allowed HPPA to use the 4-word 16-byte aligned +lock words, and alignment words to store the additional pthread_cond_t +data. Once organized properly the new NPTL pthread_cond_t was 1 word +smaller than the Linuxthreads version. + +However, we were faced with the case that users may have initialized the +pthread_cond_t with PTHREAD_COND_INITIALIZER. In this case, the first +four words were set to one, and must be cleared before any NPTL code +used these words. + +We didn't want to use LDCW, because it continues to be a source of bugs +when applications memset pthread_cond_t to all zeroes by accident. This +works on all other architectures where lock words are unlocked at zero. +Remember that because of the semantics of LDCW, a locked word is set to +zero, and an unlocked word is set to 1. + +Instead we used atomic_compare_and_exchange_val_acq, but we couldn't use +this on any of the pthread_cond_t words, otherwise it might interfere +with the current operation of the structure. To solve this problem we +used the left over word. + +If the stucture was initialized by a legacy Linuxthread +PTHREAD_COND_INITIALIZER it contained a 1, and this indicates that the +structure requires zeroing for NPTL. The first thread to come upon a +pthread_cond_t with a 1 in the __initializer field, will +compare-and-swap the value, placing a 2 there which will cause all other +threads using the same pthread_cond_t to wait for the completion of the +initialization. Lastly, we use a store (with memory barrier) to change +__initializer from 2 to 0. Note that the store is strongly ordered, but +we use the PA 1.1 compatible form which is ",ma" with zero offset. + +In the future, when the application is recompiled with NPTL +PTHREAD_COND_INITIALIZER it will be a quick compare-and-swap, which +fails because __initializer is zero, and the structure will be used as +is correctly. */ + +#define cond_compat_clear(var) \ +({ \ + int tmp = 0; \ + var->__data.__lock = 0; \ + var->__data.__futex = 0; \ + var->__data.__mutex = NULL; \ + /* Clear __initializer last, to indicate initialization is done. */ \ + __asm__ __volatile__ ("stw,ma %1,0(%0)" \ + : : "r" (&var->__data.__initializer), "r" (tmp) : "memory"); \ +}) + +#define cond_compat_check_and_clear(var) \ +({ \ + int ret; \ + volatile int *value = &var->__data.__initializer; \ + if ((ret = atomic_compare_and_exchange_val_acq(value, 2, 1))) \ + { \ + if (ret == 1) \ + { \ + /* Initialize structure. */ \ + cond_compat_clear (var); \ + } \ + else \ + { \ + /* Yield until structure is initialized. */ \ + while (*value == 2) sched_yield (); \ + } \ + } \ +}) + +#endif + diff -urN a/ports/sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h b/ports/sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h --- a/ports/sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h 2009-09-03 16:01:04.000000000 -0400 +++ b/ports/sysdeps/unix/sysv/linux/hppa/nptl/bits/pthreadtypes.h 2009-09-03 16:01:13.000000000 -0400 @@ -34,7 +34,7 @@ #define __SIZEOF_PTHREAD_ATTR_T 36 #define __SIZEOF_PTHREAD_BARRIER_T 48 #define __SIZEOF_PTHREAD_BARRIERATTR_T 4 -#define __SIZEOF_PTHREAD_COND_T 64 +#define __SIZEOF_PTHREAD_COND_T 48 #define __SIZEOF_PTHREAD_CONDATTR_T 4 #define __SIZEOF_PTHREAD_MUTEX_T 48 #define __SIZEOF_PTHREAD_MUTEXATTR_T 4 @@ -64,18 +64,31 @@ { struct __pthread_mutex_s { - int __lock; + /* Ensure that the entire structure when embedded in another + structure retains the same alignment requirements as it + did in LinuxThreads, thus add aligned 16 here. */ + int __lock __attribute__ ((aligned(16))); unsigned int __count; int __owner; /* KIND must stay at this position in the structure to maintain binary compatibility. */ int __kind; + /* The old 4-word 16-byte aligned lock. This is initalized + to all ones by the Linuxthreads PTHREAD_MUTEX_INITIALIZER. + Unused in NPTL. */ + int __compat_padding[4]; + /* In the old structure there are 4 words left due to alignment. + In NPTL two words are used. */ unsigned int __nusers; __extension__ union { int __spins; __pthread_slist_t __list; }; + /* Two more words are left before the NPTL + pthread_mutex_t is larger than Linuxthreads. */ + int __reserved1; + int __reserved2; } __data; char __size[__SIZEOF_PTHREAD_MUTEX_T]; long int __align; @@ -89,19 +102,37 @@ /* Data structure for conditional variable handling. The structure of - the attribute type is not exposed on purpose. */ + the attribute type is not exposed on purpose. However, this structure + is exposed via PTHREAD_COND_INITIALIZER, and because of this, the + Linuxthreads version sets the first four ints to one. In the NPTL + version we must check, in every function using pthread_cond_t, + for the static Linuxthreads initializer and clear the appropriate + words. */ typedef union { struct { - int __lock; + /* In the old Linuxthreads pthread_cond_t, this is the + start of the 4-word lock structure, the next four words + are set all to 1 by the Linuxthreads + PTHREAD_COND_INITIALIZER. */ + int __lock __attribute__ ((aligned(16))); + /* Tracks the initialization of this structure: + 0 initialized with NPTL PTHREAD_COND_INITIALIZER. + 1 initialized with Linuxthreads PTHREAD_COND_INITIALIZER. + 2 initialization in progress. */ + int __initializer; unsigned int __futex; + void *__mutex; + /* In the old Linuxthreads this would have been the start + of the pthread_fastlock status word. */ __extension__ unsigned long long int __total_seq; __extension__ unsigned long long int __wakeup_seq; __extension__ unsigned long long int __woken_seq; - void *__mutex; unsigned int __nwaiters; unsigned int __broadcast_seq; + /* The NPTL pthread_cond_t is exactly the same size as + the Linuxthreads version, there are no words to spare. */ } __data; char __size[__SIZEOF_PTHREAD_COND_T]; __extension__ long long int __align; @@ -129,19 +160,34 @@ { struct { + /* In the old Linuxthreads pthread_rwlock_t, this is the + start of the 4-word 16-byte algned lock structure. The + next four words are all set to 1 by the Linuxthreads + PTHREAD_RWLOCK_INITIALIZER. We ignore them in NPTL. */ + int __compat_padding[4] __attribute__ ((aligned(16))); int __lock; unsigned int __nr_readers; unsigned int __readers_wakeup; unsigned int __writer_wakeup; unsigned int __nr_readers_queued; unsigned int __nr_writers_queued; + int __writer; + /* An unused word, reserved for future use. It was added + to maintain the location of the flags from the Linuxthreads + layout of this structure. */ + int __reserved1; /* FLAGS must stay at this position in the structure to maintain binary compatibility. */ unsigned char __pad2; unsigned char __pad1; unsigned char __shared; unsigned char __flags; - int __writer; + /* The NPTL pthread_rwlock_t is 4 words smaller than the + Linuxthreads version. One word is in the middle of the + structure, the other three are at the end. */ + int __reserved2; + int __reserved3; + int __reserved4; } __data; char __size[__SIZEOF_PTHREAD_RWLOCK_T]; long int __align; diff -urN a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_broadcast.c b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_broadcast.c --- a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_broadcast.c 1969-12-31 19:00:00.000000000 -0500 +++ b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_broadcast.c 2009-09-03 16:01:13.000000000 -0400 @@ -0,0 +1,43 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + 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 INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_broadcast (cond) + pthread_cond_t *cond; +{ + cond_compat_check_and_clear (cond); + return __pthread_cond_broadcast_internal (cond); +} +versioned_symbol (libpthread, __pthread_cond_broadcast, pthread_cond_broadcast, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_broadcast +# define __pthread_cond_broadcast __pthread_cond_broadcast_internal +# include_next +#endif + diff -urN a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_destroy.c b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_destroy.c --- a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_destroy.c 1969-12-31 19:00:00.000000000 -0500 +++ b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_destroy.c 2009-09-03 16:01:13.000000000 -0400 @@ -0,0 +1,43 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + 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 INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_destroy (cond) + pthread_cond_t *cond; +{ + cond_compat_check_and_clear (cond); + return __pthread_cond_destroy_internal (cond); +} +versioned_symbol (libpthread, __pthread_cond_destroy, pthread_cond_destroy, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_destroy +# define __pthread_cond_destroy __pthread_cond_destroy_internal +# include_next +#endif + diff -urN a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_init.c b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_init.c --- a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_init.c 1969-12-31 19:00:00.000000000 -0500 +++ b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_init.c 2009-09-03 16:01:13.000000000 -0400 @@ -0,0 +1,44 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + 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 INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_init (cond, cond_attr) + pthread_cond_t *cond; + const pthread_condattr_t *cond_attr; +{ + cond_compat_clear (cond); + return __pthread_cond_init_internal (cond, cond_attr); +} +versioned_symbol (libpthread, __pthread_cond_init, pthread_cond_init, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_init +# define __pthread_cond_init __pthread_cond_init_internal +# include_next +#endif + diff -urN a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_signal.c b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_signal.c --- a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_signal.c 1969-12-31 19:00:00.000000000 -0500 +++ b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_signal.c 2009-09-03 16:01:13.000000000 -0400 @@ -0,0 +1,43 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + 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 INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_signal (cond) + pthread_cond_t *cond; +{ + cond_compat_check_and_clear (cond); + return __pthread_cond_signal_internal (cond); +} +versioned_symbol (libpthread, __pthread_cond_signal, pthread_cond_signal, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_signal +# define __pthread_cond_signal __pthread_cond_signal_internal +# include_next +#endif + diff -urN a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_timedwait.c b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_timedwait.c --- a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_timedwait.c 1969-12-31 19:00:00.000000000 -0500 +++ b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_timedwait.c 2009-09-03 16:01:13.000000000 -0400 @@ -0,0 +1,45 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + 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 INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_timedwait (cond, mutex, abstime) + pthread_cond_t *cond; + pthread_mutex_t *mutex; + const struct timespec *abstime; +{ + cond_compat_check_and_clear (cond); + return __pthread_cond_timedwait_internal (cond, mutex, abstime); +} +versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_timedwait +# define __pthread_cond_timedwait __pthread_cond_timedwait_internal +# include_next +#endif + diff -urN a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_wait.c b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_wait.c --- a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_wait.c 1969-12-31 19:00:00.000000000 -0500 +++ b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread_cond_wait.c 2009-09-03 16:01:13.000000000 -0400 @@ -0,0 +1,44 @@ +/* Copyright (C) 2009 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Carlos O'Donell , 2009. + + 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 INCLUDED_SELF +# define INCLUDED_SELF +# include +#else +# include +# include +# include +# include +int +__pthread_cond_wait (cond, mutex) + pthread_cond_t *cond; + pthread_mutex_t *mutex; +{ + cond_compat_check_and_clear (cond); + return __pthread_cond_wait_internal (cond, mutex); +} +versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait, + GLIBC_2_3_2); +# undef versioned_symbol +# define versioned_symbol(lib, local, symbol, version) +# undef __pthread_cond_wait +# define __pthread_cond_wait __pthread_cond_wait_internal +# include_next +#endif + diff -urN a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread.h b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread.h --- a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread.h 1969-12-31 19:00:00.000000000 -0500 +++ b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthread.h 2009-09-03 16:01:13.000000000 -0400 @@ -0,0 +1,1178 @@ +/* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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 _PTHREAD_H +#define _PTHREAD_H 1 + +#include +#include +#include +#include + +#define __need_sigset_t +#include +#include +#include +#include + + +/* Detach state. */ +enum +{ + PTHREAD_CREATE_JOINABLE, +#define PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_JOINABLE + PTHREAD_CREATE_DETACHED +#define PTHREAD_CREATE_DETACHED PTHREAD_CREATE_DETACHED +}; + + +/* Mutex types. */ +enum +{ + PTHREAD_MUTEX_TIMED_NP, + PTHREAD_MUTEX_RECURSIVE_NP, + PTHREAD_MUTEX_ERRORCHECK_NP, + PTHREAD_MUTEX_ADAPTIVE_NP +#ifdef __USE_UNIX98 + , + PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_TIMED_NP, + PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP, + PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP, + PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL +#endif +#ifdef __USE_GNU + /* For compatibility. */ + , PTHREAD_MUTEX_FAST_NP = PTHREAD_MUTEX_TIMED_NP +#endif +}; + + +#ifdef __USE_XOPEN2K +/* Robust mutex or not flags. */ +enum +{ + PTHREAD_MUTEX_STALLED, + PTHREAD_MUTEX_STALLED_NP = PTHREAD_MUTEX_STALLED, + PTHREAD_MUTEX_ROBUST, + PTHREAD_MUTEX_ROBUST_NP = PTHREAD_MUTEX_ROBUST +}; +#endif + + +#ifdef __USE_UNIX98 +/* Mutex protocols. */ +enum +{ + PTHREAD_PRIO_NONE, + PTHREAD_PRIO_INHERIT, + PTHREAD_PRIO_PROTECT +}; +#endif + + +/* Mutex initializers. */ +#if __WORDSIZE == 64 +# define PTHREAD_MUTEX_INITIALIZER \ + { { 0, 0, 0, 0, 0, 0, { 0, 0 } } } +# ifdef __USE_GNU +# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, { 0, 0 } } } +# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, 0, { 0, 0 } } } +# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, 0, { 0, 0 } } } +# endif +#else +# define PTHREAD_MUTEX_INITIALIZER \ + { { 0, 0, 0, 0, 0, { 0 } } } +# ifdef __USE_GNU +# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, 0, { 0 } } } +# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, 0, { 0 } } } +# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, 0, { 0 } } } +# endif +#endif + + +/* Read-write lock types. */ +#if defined __USE_UNIX98 || defined __USE_XOPEN2K +enum +{ + PTHREAD_RWLOCK_PREFER_READER_NP, + PTHREAD_RWLOCK_PREFER_WRITER_NP, + PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, + PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_READER_NP +}; + +/* Read-write lock initializers. */ +# define PTHREAD_RWLOCK_INITIALIZER \ + { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } } +# ifdef __USE_GNU +# if __WORDSIZE == 64 +# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ + { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ + PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP } } +# else +# if __BYTE_ORDER == __LITTLE_ENDIAN +# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ + { { 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, \ + 0, 0, 0, 0 } } +# else +# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ + { { 0, 0, 0, 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,\ + 0 } } +# endif +# endif +# endif +#endif /* Unix98 or XOpen2K */ + + +/* Scheduler inheritance. */ +enum +{ + PTHREAD_INHERIT_SCHED, +#define PTHREAD_INHERIT_SCHED PTHREAD_INHERIT_SCHED + PTHREAD_EXPLICIT_SCHED +#define PTHREAD_EXPLICIT_SCHED PTHREAD_EXPLICIT_SCHED +}; + + +/* Scope handling. */ +enum +{ + PTHREAD_SCOPE_SYSTEM, +#define PTHREAD_SCOPE_SYSTEM PTHREAD_SCOPE_SYSTEM + PTHREAD_SCOPE_PROCESS +#define PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_PROCESS +}; + + +/* Process shared or private flag. */ +enum +{ + PTHREAD_PROCESS_PRIVATE, +#define PTHREAD_PROCESS_PRIVATE PTHREAD_PROCESS_PRIVATE + PTHREAD_PROCESS_SHARED +#define PTHREAD_PROCESS_SHARED PTHREAD_PROCESS_SHARED +}; + + + +/* Conditional variable handling. */ +#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, 0, 0, (void *) 0, 0, 0 } } + + +/* Cleanup buffers */ +struct _pthread_cleanup_buffer +{ + void (*__routine) (void *); /* Function to call. */ + void *__arg; /* Its argument. */ + int __canceltype; /* Saved cancellation type. */ + struct _pthread_cleanup_buffer *__prev; /* Chaining of cleanup functions. */ +}; + +/* Cancellation */ +enum +{ + PTHREAD_CANCEL_ENABLE, +#define PTHREAD_CANCEL_ENABLE PTHREAD_CANCEL_ENABLE + PTHREAD_CANCEL_DISABLE +#define PTHREAD_CANCEL_DISABLE PTHREAD_CANCEL_DISABLE +}; +enum +{ + PTHREAD_CANCEL_DEFERRED, +#define PTHREAD_CANCEL_DEFERRED PTHREAD_CANCEL_DEFERRED + PTHREAD_CANCEL_ASYNCHRONOUS +#define PTHREAD_CANCEL_ASYNCHRONOUS PTHREAD_CANCEL_ASYNCHRONOUS +}; +#define PTHREAD_CANCELED ((void *) -1) + + +/* Single execution handling. */ +#define PTHREAD_ONCE_INIT 0 + + +#ifdef __USE_XOPEN2K +/* Value returned by 'pthread_barrier_wait' for one of the threads after + the required number of threads have called this function. + -1 is distinct from 0 and all errno constants */ +# define PTHREAD_BARRIER_SERIAL_THREAD -1 +#endif + + +__BEGIN_DECLS + +/* Create a new thread, starting with execution of START-ROUTINE + getting passed ARG. Creation attributed come from ATTR. The new + handle is stored in *NEWTHREAD. */ +extern int pthread_create (pthread_t *__restrict __newthread, + __const pthread_attr_t *__restrict __attr, + void *(*__start_routine) (void *), + void *__restrict __arg) __THROW __nonnull ((1, 3)); + +/* Terminate calling thread. + + The registered cleanup handlers are called via exception handling + so we cannot mark this function with __THROW.*/ +extern void pthread_exit (void *__retval) __attribute__ ((__noreturn__)); + +/* Make calling thread wait for termination of the thread TH. The + exit status of the thread is stored in *THREAD_RETURN, if THREAD_RETURN + is not NULL. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int pthread_join (pthread_t __th, void **__thread_return); + +#ifdef __USE_GNU +/* Check whether thread TH has terminated. If yes return the status of + the thread in *THREAD_RETURN, if THREAD_RETURN is not NULL. */ +extern int pthread_tryjoin_np (pthread_t __th, void **__thread_return) __THROW; + +/* Make calling thread wait for termination of the thread TH, but only + until TIMEOUT. The exit status of the thread is stored in + *THREAD_RETURN, if THREAD_RETURN is not NULL. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int pthread_timedjoin_np (pthread_t __th, void **__thread_return, + __const struct timespec *__abstime); +#endif + +/* Indicate that the thread TH is never to be joined with PTHREAD_JOIN. + The resources of TH will therefore be freed immediately when it + terminates, instead of waiting for another thread to perform PTHREAD_JOIN + on it. */ +extern int pthread_detach (pthread_t __th) __THROW; + + +/* Obtain the identifier of the current thread. */ +extern pthread_t pthread_self (void) __THROW __attribute__ ((__const__)); + +/* Compare two thread identifiers. */ +extern int pthread_equal (pthread_t __thread1, pthread_t __thread2) __THROW; + + +/* Thread attribute handling. */ + +/* Initialize thread attribute *ATTR with default attributes + (detachstate is PTHREAD_JOINABLE, scheduling policy is SCHED_OTHER, + no user-provided stack). */ +extern int pthread_attr_init (pthread_attr_t *__attr) __THROW __nonnull ((1)); + +/* Destroy thread attribute *ATTR. */ +extern int pthread_attr_destroy (pthread_attr_t *__attr) + __THROW __nonnull ((1)); + +/* Get detach state attribute. */ +extern int pthread_attr_getdetachstate (__const pthread_attr_t *__attr, + int *__detachstate) + __THROW __nonnull ((1, 2)); + +/* Set detach state attribute. */ +extern int pthread_attr_setdetachstate (pthread_attr_t *__attr, + int __detachstate) + __THROW __nonnull ((1)); + + +/* Get the size of the guard area created for stack overflow protection. */ +extern int pthread_attr_getguardsize (__const pthread_attr_t *__attr, + size_t *__guardsize) + __THROW __nonnull ((1, 2)); + +/* Set the size of the guard area created for stack overflow protection. */ +extern int pthread_attr_setguardsize (pthread_attr_t *__attr, + size_t __guardsize) + __THROW __nonnull ((1)); + + +/* Return in *PARAM the scheduling parameters of *ATTR. */ +extern int pthread_attr_getschedparam (__const pthread_attr_t *__restrict + __attr, + struct sched_param *__restrict __param) + __THROW __nonnull ((1, 2)); + +/* Set scheduling parameters (priority, etc) in *ATTR according to PARAM. */ +extern int pthread_attr_setschedparam (pthread_attr_t *__restrict __attr, + __const struct sched_param *__restrict + __param) __THROW __nonnull ((1, 2)); + +/* Return in *POLICY the scheduling policy of *ATTR. */ +extern int pthread_attr_getschedpolicy (__const pthread_attr_t *__restrict + __attr, int *__restrict __policy) + __THROW __nonnull ((1, 2)); + +/* Set scheduling policy in *ATTR according to POLICY. */ +extern int pthread_attr_setschedpolicy (pthread_attr_t *__attr, int __policy) + __THROW __nonnull ((1)); + +/* Return in *INHERIT the scheduling inheritance mode of *ATTR. */ +extern int pthread_attr_getinheritsched (__const pthread_attr_t *__restrict + __attr, int *__restrict __inherit) + __THROW __nonnull ((1, 2)); + +/* Set scheduling inheritance mode in *ATTR according to INHERIT. */ +extern int pthread_attr_setinheritsched (pthread_attr_t *__attr, + int __inherit) + __THROW __nonnull ((1)); + + +/* Return in *SCOPE the scheduling contention scope of *ATTR. */ +extern int pthread_attr_getscope (__const pthread_attr_t *__restrict __attr, + int *__restrict __scope) + __THROW __nonnull ((1, 2)); + +/* Set scheduling contention scope in *ATTR according to SCOPE. */ +extern int pthread_attr_setscope (pthread_attr_t *__attr, int __scope) + __THROW __nonnull ((1)); + +/* Return the previously set address for the stack. */ +extern int pthread_attr_getstackaddr (__const pthread_attr_t *__restrict + __attr, void **__restrict __stackaddr) + __THROW __nonnull ((1, 2)) __attribute_deprecated__; + +/* Set the starting address of the stack of the thread to be created. + Depending on whether the stack grows up or down the value must either + be higher or lower than all the address in the memory block. The + minimal size of the block must be PTHREAD_STACK_MIN. */ +extern int pthread_attr_setstackaddr (pthread_attr_t *__attr, + void *__stackaddr) + __THROW __nonnull ((1)) __attribute_deprecated__; + +/* Return the currently used minimal stack size. */ +extern int pthread_attr_getstacksize (__const pthread_attr_t *__restrict + __attr, size_t *__restrict __stacksize) + __THROW __nonnull ((1, 2)); + +/* Add information about the minimum stack size needed for the thread + to be started. This size must never be less than PTHREAD_STACK_MIN + and must also not exceed the system limits. */ +extern int pthread_attr_setstacksize (pthread_attr_t *__attr, + size_t __stacksize) + __THROW __nonnull ((1)); + +#ifdef __USE_XOPEN2K +/* Return the previously set address for the stack. */ +extern int pthread_attr_getstack (__const pthread_attr_t *__restrict __attr, + void **__restrict __stackaddr, + size_t *__restrict __stacksize) + __THROW __nonnull ((1, 2, 3)); + +/* The following two interfaces are intended to replace the last two. They + require setting the address as well as the size since only setting the + address will make the implementation on some architectures impossible. */ +extern int pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr, + size_t __stacksize) __THROW __nonnull ((1)); +#endif + +#ifdef __USE_GNU +/* Thread created with attribute ATTR will be limited to run only on + the processors represented in CPUSET. */ +extern int pthread_attr_setaffinity_np (pthread_attr_t *__attr, + size_t __cpusetsize, + __const cpu_set_t *__cpuset) + __THROW __nonnull ((1, 3)); + +/* Get bit set in CPUSET representing the processors threads created with + ATTR can run on. */ +extern int pthread_attr_getaffinity_np (__const pthread_attr_t *__attr, + size_t __cpusetsize, + cpu_set_t *__cpuset) + __THROW __nonnull ((1, 3)); + + +/* Initialize thread attribute *ATTR with attributes corresponding to the + already running thread TH. It shall be called on uninitialized ATTR + and destroyed with pthread_attr_destroy when no longer needed. */ +extern int pthread_getattr_np (pthread_t __th, pthread_attr_t *__attr) + __THROW __nonnull ((2)); +#endif + + +/* Functions for scheduling control. */ + +/* Set the scheduling parameters for TARGET_THREAD according to POLICY + and *PARAM. */ +extern int pthread_setschedparam (pthread_t __target_thread, int __policy, + __const struct sched_param *__param) + __THROW __nonnull ((3)); + +/* Return in *POLICY and *PARAM the scheduling parameters for TARGET_THREAD. */ +extern int pthread_getschedparam (pthread_t __target_thread, + int *__restrict __policy, + struct sched_param *__restrict __param) + __THROW __nonnull ((2, 3)); + +/* Set the scheduling priority for TARGET_THREAD. */ +extern int pthread_setschedprio (pthread_t __target_thread, int __prio) + __THROW; + + +#ifdef __USE_UNIX98 +/* Determine level of concurrency. */ +extern int pthread_getconcurrency (void) __THROW; + +/* Set new concurrency level to LEVEL. */ +extern int pthread_setconcurrency (int __level) __THROW; +#endif + +#ifdef __USE_GNU +/* Yield the processor to another thread or process. + This function is similar to the POSIX `sched_yield' function but + might be differently implemented in the case of a m-on-n thread + implementation. */ +extern int pthread_yield (void) __THROW; + + +/* Limit specified thread TH to run only on the processors represented + in CPUSET. */ +extern int pthread_setaffinity_np (pthread_t __th, size_t __cpusetsize, + __const cpu_set_t *__cpuset) + __THROW __nonnull ((3)); + +/* Get bit set in CPUSET representing the processors TH can run on. */ +extern int pthread_getaffinity_np (pthread_t __th, size_t __cpusetsize, + cpu_set_t *__cpuset) + __THROW __nonnull ((3)); +#endif + + +/* Functions for handling initialization. */ + +/* Guarantee that the initialization function INIT_ROUTINE will be called + only once, even if pthread_once is executed several times with the + same ONCE_CONTROL argument. ONCE_CONTROL must point to a static or + extern variable initialized to PTHREAD_ONCE_INIT. + + The initialization functions might throw exception which is why + this function is not marked with __THROW. */ +extern int pthread_once (pthread_once_t *__once_control, + void (*__init_routine) (void)) __nonnull ((1, 2)); + + +/* Functions for handling cancellation. + + Note that these functions are explicitly not marked to not throw an + exception in C++ code. If cancellation is implemented by unwinding + this is necessary to have the compiler generate the unwind information. */ + +/* Set cancelability state of current thread to STATE, returning old + state in *OLDSTATE if OLDSTATE is not NULL. */ +extern int pthread_setcancelstate (int __state, int *__oldstate); + +/* Set cancellation state of current thread to TYPE, returning the old + type in *OLDTYPE if OLDTYPE is not NULL. */ +extern int pthread_setcanceltype (int __type, int *__oldtype); + +/* Cancel THREAD immediately or at the next possibility. */ +extern int pthread_cancel (pthread_t __th); + +/* Test for pending cancellation for the current thread and terminate + the thread as per pthread_exit(PTHREAD_CANCELED) if it has been + cancelled. */ +extern void pthread_testcancel (void); + + +/* Cancellation handling with integration into exception handling. */ + +typedef struct +{ + struct + { + __jmp_buf __cancel_jmp_buf; + int __mask_was_saved; + } __cancel_jmp_buf[1]; + void *__pad[4]; +} __pthread_unwind_buf_t __attribute__ ((__aligned__)); + +/* No special attributes by default. */ +#ifndef __cleanup_fct_attribute +# define __cleanup_fct_attribute +#endif + + +/* Structure to hold the cleanup handler information. */ +struct __pthread_cleanup_frame +{ + void (*__cancel_routine) (void *); + void *__cancel_arg; + int __do_it; + int __cancel_type; +}; + +#if defined __GNUC__ && defined __EXCEPTIONS +# ifdef __cplusplus +/* Class to handle cancellation handler invocation. */ +class __pthread_cleanup_class +{ + void (*__cancel_routine) (void *); + void *__cancel_arg; + int __do_it; + int __cancel_type; + + public: + __pthread_cleanup_class (void (*__fct) (void *), void *__arg) + : __cancel_routine (__fct), __cancel_arg (__arg), __do_it (1) { } + ~__pthread_cleanup_class () { if (__do_it) __cancel_routine (__cancel_arg); } + void __setdoit (int __newval) { __do_it = __newval; } + void __defer () { pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, + &__cancel_type); } + void __restore () const { pthread_setcanceltype (__cancel_type, 0); } +}; + +/* Install a cleanup handler: ROUTINE will be called with arguments ARG + when the thread is canceled or calls pthread_exit. ROUTINE will also + be called with arguments ARG when the matching pthread_cleanup_pop + is executed with non-zero EXECUTE argument. + + pthread_cleanup_push and pthread_cleanup_pop are macros and must always + be used in matching pairs at the same nesting level of braces. */ +# define pthread_cleanup_push(routine, arg) \ + do { \ + __pthread_cleanup_class __clframe (routine, arg) + +/* Remove a cleanup handler installed by the matching pthread_cleanup_push. + If EXECUTE is non-zero, the handler function is called. */ +# define pthread_cleanup_pop(execute) \ + __clframe.__setdoit (execute); \ + } while (0) + +# ifdef __USE_GNU +/* Install a cleanup handler as pthread_cleanup_push does, but also + saves the current cancellation type and sets it to deferred + cancellation. */ +# define pthread_cleanup_push_defer_np(routine, arg) \ + do { \ + __pthread_cleanup_class __clframe (routine, arg); \ + __clframe.__defer () + +/* Remove a cleanup handler as pthread_cleanup_pop does, but also + restores the cancellation type that was in effect when the matching + pthread_cleanup_push_defer was called. */ +# define pthread_cleanup_pop_restore_np(execute) \ + __clframe.__restore (); \ + __clframe.__setdoit (execute); \ + } while (0) +# endif +# else +/* Function called to call the cleanup handler. As an extern inline + function the compiler is free to decide inlining the change when + needed or fall back on the copy which must exist somewhere + else. */ +__extern_inline void +__pthread_cleanup_routine (struct __pthread_cleanup_frame *__frame) +{ + if (__frame->__do_it) + __frame->__cancel_routine (__frame->__cancel_arg); +} + +/* Install a cleanup handler: ROUTINE will be called with arguments ARG + when the thread is canceled or calls pthread_exit. ROUTINE will also + be called with arguments ARG when the matching pthread_cleanup_pop + is executed with non-zero EXECUTE argument. + + pthread_cleanup_push and pthread_cleanup_pop are macros and must always + be used in matching pairs at the same nesting level of braces. */ +# define pthread_cleanup_push(routine, arg) \ + do { \ + struct __pthread_cleanup_frame __clframe \ + __attribute__ ((__cleanup__ (__pthread_cleanup_routine))) \ + = { .__cancel_routine = (routine), .__cancel_arg = (arg), \ + .__do_it = 1 }; + +/* Remove a cleanup handler installed by the matching pthread_cleanup_push. + If EXECUTE is non-zero, the handler function is called. */ +# define pthread_cleanup_pop(execute) \ + __clframe.__do_it = (execute); \ + } while (0) + +# ifdef __USE_GNU +/* Install a cleanup handler as pthread_cleanup_push does, but also + saves the current cancellation type and sets it to deferred + cancellation. */ +# define pthread_cleanup_push_defer_np(routine, arg) \ + do { \ + struct __pthread_cleanup_frame __clframe \ + __attribute__ ((__cleanup__ (__pthread_cleanup_routine))) \ + = { .__cancel_routine = (routine), .__cancel_arg = (arg), \ + .__do_it = 1 }; \ + (void) pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, \ + &__clframe.__cancel_type) + +/* Remove a cleanup handler as pthread_cleanup_pop does, but also + restores the cancellation type that was in effect when the matching + pthread_cleanup_push_defer was called. */ +# define pthread_cleanup_pop_restore_np(execute) \ + (void) pthread_setcanceltype (__clframe.__cancel_type, NULL); \ + __clframe.__do_it = (execute); \ + } while (0) +# endif +# endif +#else +/* Install a cleanup handler: ROUTINE will be called with arguments ARG + when the thread is canceled or calls pthread_exit. ROUTINE will also + be called with arguments ARG when the matching pthread_cleanup_pop + is executed with non-zero EXECUTE argument. + + pthread_cleanup_push and pthread_cleanup_pop are macros and must always + be used in matching pairs at the same nesting level of braces. */ +# define pthread_cleanup_push(routine, arg) \ + do { \ + __pthread_unwind_buf_t __cancel_buf; \ + void (*__cancel_routine) (void *) = (routine); \ + void *__cancel_arg = (arg); \ + int not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *) \ + __cancel_buf.__cancel_jmp_buf, 0); \ + if (__builtin_expect (not_first_call, 0)) \ + { \ + __cancel_routine (__cancel_arg); \ + __pthread_unwind_next (&__cancel_buf); \ + /* NOTREACHED */ \ + } \ + \ + __pthread_register_cancel (&__cancel_buf); \ + do { +extern void __pthread_register_cancel (__pthread_unwind_buf_t *__buf) + __cleanup_fct_attribute; + +/* Remove a cleanup handler installed by the matching pthread_cleanup_push. + If EXECUTE is non-zero, the handler function is called. */ +# define pthread_cleanup_pop(execute) \ + do { } while (0);/* Empty to allow label before pthread_cleanup_pop. */\ + } while (0); \ + __pthread_unregister_cancel (&__cancel_buf); \ + if (execute) \ + __cancel_routine (__cancel_arg); \ + } while (0) +extern void __pthread_unregister_cancel (__pthread_unwind_buf_t *__buf) + __cleanup_fct_attribute; + +# ifdef __USE_GNU +/* Install a cleanup handler as pthread_cleanup_push does, but also + saves the current cancellation type and sets it to deferred + cancellation. */ +# define pthread_cleanup_push_defer_np(routine, arg) \ + do { \ + __pthread_unwind_buf_t __cancel_buf; \ + void (*__cancel_routine) (void *) = (routine); \ + void *__cancel_arg = (arg); \ + int not_first_call = __sigsetjmp ((struct __jmp_buf_tag *) (void *) \ + __cancel_buf.__cancel_jmp_buf, 0); \ + if (__builtin_expect (not_first_call, 0)) \ + { \ + __cancel_routine (__cancel_arg); \ + __pthread_unwind_next (&__cancel_buf); \ + /* NOTREACHED */ \ + } \ + \ + __pthread_register_cancel_defer (&__cancel_buf); \ + do { +extern void __pthread_register_cancel_defer (__pthread_unwind_buf_t *__buf) + __cleanup_fct_attribute; + +/* Remove a cleanup handler as pthread_cleanup_pop does, but also + restores the cancellation type that was in effect when the matching + pthread_cleanup_push_defer was called. */ +# define pthread_cleanup_pop_restore_np(execute) \ + do { } while (0);/* Empty to allow label before pthread_cleanup_pop. */\ + } while (0); \ + __pthread_unregister_cancel_restore (&__cancel_buf); \ + if (execute) \ + __cancel_routine (__cancel_arg); \ + } while (0) +extern void __pthread_unregister_cancel_restore (__pthread_unwind_buf_t *__buf) + __cleanup_fct_attribute; +# endif + +/* Internal interface to initiate cleanup. */ +extern void __pthread_unwind_next (__pthread_unwind_buf_t *__buf) + __cleanup_fct_attribute __attribute__ ((__noreturn__)) +# ifndef SHARED + __attribute__ ((__weak__)) +# endif + ; +#endif + +/* Function used in the macros. */ +struct __jmp_buf_tag; +extern int __sigsetjmp (struct __jmp_buf_tag *__env, int __savemask) __THROW; + + +/* Mutex handling. */ + +/* Initialize a mutex. */ +extern int pthread_mutex_init (pthread_mutex_t *__mutex, + __const pthread_mutexattr_t *__mutexattr) + __THROW __nonnull ((1)); + +/* Destroy a mutex. */ +extern int pthread_mutex_destroy (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); + +/* Try locking a mutex. */ +extern int pthread_mutex_trylock (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); + +/* Lock a mutex. */ +extern int pthread_mutex_lock (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); + +#ifdef __USE_XOPEN2K +/* Wait until lock becomes available, or specified time passes. */ +extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex, + __const struct timespec *__restrict + __abstime) __THROW __nonnull ((1, 2)); +#endif + +/* Unlock a mutex. */ +extern int pthread_mutex_unlock (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); + + +#ifdef __USE_UNIX98 +/* Get the priority ceiling of MUTEX. */ +extern int pthread_mutex_getprioceiling (__const pthread_mutex_t * + __restrict __mutex, + int *__restrict __prioceiling) + __THROW __nonnull ((1, 2)); + +/* Set the priority ceiling of MUTEX to PRIOCEILING, return old + priority ceiling value in *OLD_CEILING. */ +extern int pthread_mutex_setprioceiling (pthread_mutex_t *__restrict __mutex, + int __prioceiling, + int *__restrict __old_ceiling) + __THROW __nonnull ((1, 3)); +#endif + + +#ifdef __USE_XOPEN2K8 +/* Declare the state protected by MUTEX as consistent. */ +extern int pthread_mutex_consistent_np (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); +# ifdef __USE_GNU +extern int pthread_mutex_consistent_np (pthread_mutex_t *__mutex) + __THROW __nonnull ((1)); +# endif +#endif + + +/* Functions for handling mutex attributes. */ + +/* Initialize mutex attribute object ATTR with default attributes + (kind is PTHREAD_MUTEX_TIMED_NP). */ +extern int pthread_mutexattr_init (pthread_mutexattr_t *__attr) + __THROW __nonnull ((1)); + +/* Destroy mutex attribute object ATTR. */ +extern int pthread_mutexattr_destroy (pthread_mutexattr_t *__attr) + __THROW __nonnull ((1)); + +/* Get the process-shared flag of the mutex attribute ATTR. */ +extern int pthread_mutexattr_getpshared (__const pthread_mutexattr_t * + __restrict __attr, + int *__restrict __pshared) + __THROW __nonnull ((1, 2)); + +/* Set the process-shared flag of the mutex attribute ATTR. */ +extern int pthread_mutexattr_setpshared (pthread_mutexattr_t *__attr, + int __pshared) + __THROW __nonnull ((1)); + +#ifdef __USE_UNIX98 +/* Return in *KIND the mutex kind attribute in *ATTR. */ +extern int pthread_mutexattr_gettype (__const pthread_mutexattr_t *__restrict + __attr, int *__restrict __kind) + __THROW __nonnull ((1, 2)); + +/* Set the mutex kind attribute in *ATTR to KIND (either PTHREAD_MUTEX_NORMAL, + PTHREAD_MUTEX_RECURSIVE, PTHREAD_MUTEX_ERRORCHECK, or + PTHREAD_MUTEX_DEFAULT). */ +extern int pthread_mutexattr_settype (pthread_mutexattr_t *__attr, int __kind) + __THROW __nonnull ((1)); + +/* Return in *PROTOCOL the mutex protocol attribute in *ATTR. */ +extern int pthread_mutexattr_getprotocol (__const pthread_mutexattr_t * + __restrict __attr, + int *__restrict __protocol) + __THROW __nonnull ((1, 2)); + +/* Set the mutex protocol attribute in *ATTR to PROTOCOL (either + PTHREAD_PRIO_NONE, PTHREAD_PRIO_INHERIT, or PTHREAD_PRIO_PROTECT). */ +extern int pthread_mutexattr_setprotocol (pthread_mutexattr_t *__attr, + int __protocol) + __THROW __nonnull ((1)); + +/* Return in *PRIOCEILING the mutex prioceiling attribute in *ATTR. */ +extern int pthread_mutexattr_getprioceiling (__const pthread_mutexattr_t * + __restrict __attr, + int *__restrict __prioceiling) + __THROW __nonnull ((1, 2)); + +/* Set the mutex prioceiling attribute in *ATTR to PRIOCEILING. */ +extern int pthread_mutexattr_setprioceiling (pthread_mutexattr_t *__attr, + int __prioceiling) + __THROW __nonnull ((1)); +#endif + +#ifdef __USE_XOPEN2K +/* Get the robustness flag of the mutex attribute ATTR. */ +extern int pthread_mutexattr_getrobust (__const pthread_mutexattr_t *__attr, + int *__robustness) + __THROW __nonnull ((1, 2)); +# ifdef __USE_GNU +extern int pthread_mutexattr_getrobust_np (__const pthread_mutexattr_t *__attr, + int *__robustness) + __THROW __nonnull ((1, 2)); +# endif + +/* Set the robustness flag of the mutex attribute ATTR. */ +extern int pthread_mutexattr_setrobust (pthread_mutexattr_t *__attr, + int __robustness) + __THROW __nonnull ((1)); +# ifdef __USE_GNU +extern int pthread_mutexattr_setrobust_np (pthread_mutexattr_t *__attr, + int __robustness) + __THROW __nonnull ((1)); +# endif +#endif + + +#if defined __USE_UNIX98 || defined __USE_XOPEN2K +/* Functions for handling read-write locks. */ + +/* Initialize read-write lock RWLOCK using attributes ATTR, or use + the default values if later is NULL. */ +extern int pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock, + __const pthread_rwlockattr_t *__restrict + __attr) __THROW __nonnull ((1)); + +/* Destroy read-write lock RWLOCK. */ +extern int pthread_rwlock_destroy (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + +/* Acquire read lock for RWLOCK. */ +extern int pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + +/* Try to acquire read lock for RWLOCK. */ +extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + +# ifdef __USE_XOPEN2K +/* Try to acquire read lock for RWLOCK or return after specfied time. */ +extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock, + __const struct timespec *__restrict + __abstime) __THROW __nonnull ((1, 2)); +# endif + +/* Acquire write lock for RWLOCK. */ +extern int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + +/* Try to acquire write lock for RWLOCK. */ +extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + +# ifdef __USE_XOPEN2K +/* Try to acquire write lock for RWLOCK or return after specfied time. */ +extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock, + __const struct timespec *__restrict + __abstime) __THROW __nonnull ((1, 2)); +# endif + +/* Unlock RWLOCK. */ +extern int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock) + __THROW __nonnull ((1)); + + +/* Functions for handling read-write lock attributes. */ + +/* Initialize attribute object ATTR with default values. */ +extern int pthread_rwlockattr_init (pthread_rwlockattr_t *__attr) + __THROW __nonnull ((1)); + +/* Destroy attribute object ATTR. */ +extern int pthread_rwlockattr_destroy (pthread_rwlockattr_t *__attr) + __THROW __nonnull ((1)); + +/* Return current setting of process-shared attribute of ATTR in PSHARED. */ +extern int pthread_rwlockattr_getpshared (__const pthread_rwlockattr_t * + __restrict __attr, + int *__restrict __pshared) + __THROW __nonnull ((1, 2)); + +/* Set process-shared attribute of ATTR to PSHARED. */ +extern int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *__attr, + int __pshared) + __THROW __nonnull ((1)); + +/* Return current setting of reader/writer preference. */ +extern int pthread_rwlockattr_getkind_np (__const pthread_rwlockattr_t * + __restrict __attr, + int *__restrict __pref) + __THROW __nonnull ((1, 2)); + +/* Set reader/write preference. */ +extern int pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *__attr, + int __pref) __THROW __nonnull ((1)); +#endif + + +/* Functions for handling conditional variables. */ + +/* Initialize condition variable COND using attributes ATTR, or use + the default values if later is NULL. */ +extern int pthread_cond_init (pthread_cond_t *__restrict __cond, + __const pthread_condattr_t *__restrict + __cond_attr) __THROW __nonnull ((1)); + +/* Destroy condition variable COND. */ +extern int pthread_cond_destroy (pthread_cond_t *__cond) + __THROW __nonnull ((1)); + +/* Wake up one thread waiting for condition variable COND. */ +extern int pthread_cond_signal (pthread_cond_t *__cond) + __THROW __nonnull ((1)); + +/* Wake up all threads waiting for condition variables COND. */ +extern int pthread_cond_broadcast (pthread_cond_t *__cond) + __THROW __nonnull ((1)); + +/* Wait for condition variable COND to be signaled or broadcast. + MUTEX is assumed to be locked before. + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int pthread_cond_wait (pthread_cond_t *__restrict __cond, + pthread_mutex_t *__restrict __mutex) + __nonnull ((1, 2)); + +/* Wait for condition variable COND to be signaled or broadcast until + ABSTIME. MUTEX is assumed to be locked before. ABSTIME is an + absolute time specification; zero is the beginning of the epoch + (00:00:00 GMT, January 1, 1970). + + This function is a cancellation point and therefore not marked with + __THROW. */ +extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond, + pthread_mutex_t *__restrict __mutex, + __const struct timespec *__restrict + __abstime) __nonnull ((1, 2, 3)); + +/* Functions for handling condition variable attributes. */ + +/* Initialize condition variable attribute ATTR. */ +extern int pthread_condattr_init (pthread_condattr_t *__attr) + __THROW __nonnull ((1)); + +/* Destroy condition variable attribute ATTR. */ +extern int pthread_condattr_destroy (pthread_condattr_t *__attr) + __THROW __nonnull ((1)); + +/* Get the process-shared flag of the condition variable attribute ATTR. */ +extern int pthread_condattr_getpshared (__const pthread_condattr_t * + __restrict __attr, + int *__restrict __pshared) + __THROW __nonnull ((1, 2)); + +/* Set the process-shared flag of the condition variable attribute ATTR. */ +extern int pthread_condattr_setpshared (pthread_condattr_t *__attr, + int __pshared) __THROW __nonnull ((1)); + +#ifdef __USE_XOPEN2K +/* Get the clock selected for the conditon variable attribute ATTR. */ +extern int pthread_condattr_getclock (__const pthread_condattr_t * + __restrict __attr, + __clockid_t *__restrict __clock_id) + __THROW __nonnull ((1, 2)); + +/* Set the clock selected for the conditon variable attribute ATTR. */ +extern int pthread_condattr_setclock (pthread_condattr_t *__attr, + __clockid_t __clock_id) + __THROW __nonnull ((1)); +#endif + + +#ifdef __USE_XOPEN2K +/* Functions to handle spinlocks. */ + +/* Initialize the spinlock LOCK. If PSHARED is nonzero the spinlock can + be shared between different processes. */ +extern int pthread_spin_init (pthread_spinlock_t *__lock, int __pshared) + __THROW __nonnull ((1)); + +/* Destroy the spinlock LOCK. */ +extern int pthread_spin_destroy (pthread_spinlock_t *__lock) + __THROW __nonnull ((1)); + +/* Wait until spinlock LOCK is retrieved. */ +extern int pthread_spin_lock (pthread_spinlock_t *__lock) + __THROW __nonnull ((1)); + +/* Try to lock spinlock LOCK. */ +extern int pthread_spin_trylock (pthread_spinlock_t *__lock) + __THROW __nonnull ((1)); + +/* Release spinlock LOCK. */ +extern int pthread_spin_unlock (pthread_spinlock_t *__lock) + __THROW __nonnull ((1)); + + +/* Functions to handle barriers. */ + +/* Initialize BARRIER with the attributes in ATTR. The barrier is + opened when COUNT waiters arrived. */ +extern int pthread_barrier_init (pthread_barrier_t *__restrict __barrier, + __const pthread_barrierattr_t *__restrict + __attr, unsigned int __count) + __THROW __nonnull ((1)); + +/* Destroy a previously dynamically initialized barrier BARRIER. */ +extern int pthread_barrier_destroy (pthread_barrier_t *__barrier) + __THROW __nonnull ((1)); + +/* Wait on barrier BARRIER. */ +extern int pthread_barrier_wait (pthread_barrier_t *__barrier) + __THROW __nonnull ((1)); + + +/* Initialize barrier attribute ATTR. */ +extern int pthread_barrierattr_init (pthread_barrierattr_t *__attr) + __THROW __nonnull ((1)); + +/* Destroy previously dynamically initialized barrier attribute ATTR. */ +extern int pthread_barrierattr_destroy (pthread_barrierattr_t *__attr) + __THROW __nonnull ((1)); + +/* Get the process-shared flag of the barrier attribute ATTR. */ +extern int pthread_barrierattr_getpshared (__const pthread_barrierattr_t * + __restrict __attr, + int *__restrict __pshared) + __THROW __nonnull ((1, 2)); + +/* Set the process-shared flag of the barrier attribute ATTR. */ +extern int pthread_barrierattr_setpshared (pthread_barrierattr_t *__attr, + int __pshared) + __THROW __nonnull ((1)); +#endif + + +/* Functions for handling thread-specific data. */ + +/* Create a key value identifying a location in the thread-specific + data area. Each thread maintains a distinct thread-specific data + area. DESTR_FUNCTION, if non-NULL, is called with the value + associated to that key when the key is destroyed. + DESTR_FUNCTION is not called if the value associated is NULL when + the key is destroyed. */ +extern int pthread_key_create (pthread_key_t *__key, + void (*__destr_function) (void *)) + __THROW __nonnull ((1)); + +/* Destroy KEY. */ +extern int pthread_key_delete (pthread_key_t __key) __THROW; + +/* Return current value of the thread-specific data slot identified by KEY. */ +extern void *pthread_getspecific (pthread_key_t __key) __THROW; + +/* Store POINTER in the thread-specific data slot identified by KEY. */ +extern int pthread_setspecific (pthread_key_t __key, + __const void *__pointer) __THROW ; + + +#ifdef __USE_XOPEN2K +/* Get ID of CPU-time clock for thread THREAD_ID. */ +extern int pthread_getcpuclockid (pthread_t __thread_id, + __clockid_t *__clock_id) + __THROW __nonnull ((2)); +#endif + + +/* Install handlers to be called when a new process is created with FORK. + The PREPARE handler is called in the parent process just before performing + FORK. The PARENT handler is called in the parent process just after FORK. + The CHILD handler is called in the child process. Each of the three + handlers can be NULL, meaning that no handler needs to be called at that + point. + PTHREAD_ATFORK can be called several times, in which case the PREPARE + handlers are called in LIFO order (last added with PTHREAD_ATFORK, + first called before FORK), and the PARENT and CHILD handlers are called + in FIFO (first added, first called). */ + +extern int pthread_atfork (void (*__prepare) (void), + void (*__parent) (void), + void (*__child) (void)) __THROW; + + +#ifdef __USE_EXTERN_INLINES +/* Optimizations. */ +__extern_inline int +__NTH (pthread_equal (pthread_t __thread1, pthread_t __thread2)) +{ + return __thread1 == __thread2; +} +#endif + +__END_DECLS + +#endif /* pthread.h */ + +#ifndef _PTHREAD_H_HPPA_ +#define _PTHREAD_H_HPPA_ 1 + +/* The pthread_cond_t initializer is compatible only with NPTL. We do not + want to be forwards compatible, we eventually want to drop the code + that has to clear the old LT initializer. */ +#undef PTHREAD_COND_INITIALIZER +#define PTHREAD_COND_INITIALIZER { { 0, 0, 0, (void *) 0, 0, 0, 0, 0, 0 } } + +/* The pthread_mutex_t and pthread_rwlock_t initializers are compatible + only with NPTL. NPTL assumes pthread_rwlock_t is all zero. */ +#undef PTHREAD_MUTEX_INITIALIZER +#undef PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP +#undef PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP +#undef PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP +/* Mutex initializers. */ +#define PTHREAD_MUTEX_INITIALIZER \ + { { 0, 0, 0, 0, { 0, 0, 0, 0 }, 0, { 0 }, 0, 0 } } +#ifdef __USE_GNU +# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, { 0, 0, 0, 0 }, 0, { 0 }, 0, 0 } } +# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, { 0, 0, 0, 0 }, 0, { 0 }, 0, 0 } } +# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \ + { { 0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, { 0, 0, 0, 0 }, 0, { 0 }, 0, 0 } } +#endif + +#undef PTHREAD_RWLOCK_INITIALIZER +#undef PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP +/* Read-write lock initializers. */ +#define PTHREAD_RWLOCK_INITIALIZER \ + { { { 0, 0, 0, 0 }, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } } +#ifdef __USE_GNU +# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \ + { { { 0, 0, 0, 0 }, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,\ + 0, 0, 0 } } +#endif /* Unix98 or XOpen2K */ + +#endif + diff -urN a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthreadP.h b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthreadP.h --- a/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthreadP.h 1969-12-31 19:00:00.000000000 -0500 +++ b/ports/sysdeps/unix/sysv/linux/hppa/nptl/pthreadP.h 2009-09-03 16:01:13.000000000 -0400 @@ -0,0 +1,17 @@ +#include_next +#ifndef _PTHREADP_H_HPPA_ +#define _PTHREADP_H_HPPA_ 1 + +/* Internal cond functions. */ +extern int __pthread_cond_broadcast_internal (pthread_cond_t *cond); +extern int __pthread_cond_destroy_internal (pthread_cond_t *cond); +extern int __pthread_cond_init_internal (pthread_cond_t *cond, + const pthread_condattr_t *cond_attr); +extern int __pthread_cond_signal_internal (pthread_cond_t *cond); +extern int __pthread_cond_timedwait_internal (pthread_cond_t *cond, + pthread_mutex_t *mutex, + const struct timespec *abstime); +extern int __pthread_cond_wait_internal (pthread_cond_t *cond, + pthread_mutex_t *mutex); +#endif +