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- /* Linuxthreads - a simple clone()-based implementation of Posix */
- /* threads for Linux. */
- /* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */
- /* */
- /* This program is free software; you can redistribute it and/or */
- /* modify it under the terms of the GNU Library General Public License */
- /* as published by the Free Software Foundation; either version 2 */
- /* of the License, or (at your option) any later version. */
- /* */
- /* This program 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 Library General Public License for more details. */
- #if !defined _BITS_TYPES_H && !defined _PTHREAD_H
- # error "Never include <bits/pthreadtypes.h> directly; use <sys/types.h> instead."
- #endif
- #ifndef _BITS_PTHREADTYPES_H
- #define _BITS_PTHREADTYPES_H 1
- #define __need_schedparam
- #include <bits/sched.h>
- /* Fast locks (not abstract because mutexes and conditions aren't abstract). */
- struct _pthread_fastlock
- {
- long int __status; /* "Free" or "taken" or head of waiting list */
- int __spinlock; /* Used by compare_and_swap emulation. Also,
- adaptive SMP lock stores spin count here. */
- };
- #ifndef _PTHREAD_DESCR_DEFINED
- /* Thread descriptors */
- typedef struct _pthread_descr_struct *_pthread_descr;
- # define _PTHREAD_DESCR_DEFINED
- #endif
- /* Attributes for threads. */
- typedef struct __pthread_attr_s
- {
- int __detachstate;
- int __schedpolicy;
- struct __sched_param __schedparam;
- int __inheritsched;
- int __scope;
- size_t __guardsize;
- int __stackaddr_set;
- void *__stackaddr;
- size_t __stacksize;
- } pthread_attr_t;
- /* Conditions (not abstract because of PTHREAD_COND_INITIALIZER */
- typedef struct
- {
- struct _pthread_fastlock __c_lock; /* Protect against concurrent access */
- _pthread_descr __c_waiting; /* Threads waiting on this condition */
- } pthread_cond_t;
- /* Attribute for conditionally variables. */
- typedef struct
- {
- int __dummy;
- } pthread_condattr_t;
- /* Keys for thread-specific data */
- typedef unsigned int pthread_key_t;
- /* Mutexes (not abstract because of PTHREAD_MUTEX_INITIALIZER). */
- /* (The layout is unnatural to maintain binary compatibility
- with earlier releases of LinuxThreads.) */
- typedef struct
- {
- int __m_reserved; /* Reserved for future use */
- int __m_count; /* Depth of recursive locking */
- _pthread_descr __m_owner; /* Owner thread (if recursive or errcheck) */
- int __m_kind; /* Mutex kind: fast, recursive or errcheck */
- struct _pthread_fastlock __m_lock; /* Underlying fast lock */
- } pthread_mutex_t;
- /* Attribute for mutex. */
- typedef struct
- {
- int __mutexkind;
- } pthread_mutexattr_t;
- /* Once-only execution */
- typedef int pthread_once_t;
- #ifdef __USE_UNIX98
- /* Read-write locks. */
- typedef struct _pthread_rwlock_t
- {
- struct _pthread_fastlock __rw_lock; /* Lock to guarantee mutual exclusion */
- int __rw_readers; /* Number of readers */
- _pthread_descr __rw_writer; /* Identity of writer, or NULL if none */
- _pthread_descr __rw_read_waiting; /* Threads waiting for reading */
- _pthread_descr __rw_write_waiting; /* Threads waiting for writing */
- int __rw_kind; /* Reader/Writer preference selection */
- int __rw_pshared; /* Shared between processes or not */
- } pthread_rwlock_t;
- /* Attribute for read-write locks. */
- typedef struct
- {
- int __lockkind;
- int __pshared;
- } pthread_rwlockattr_t;
- #endif
- #ifdef __USE_XOPEN2K
- /* POSIX spinlock data type. */
- typedef volatile int pthread_spinlock_t;
- /* POSIX barrier. */
- typedef struct {
- struct _pthread_fastlock __ba_lock; /* Lock to guarantee mutual exclusion */
- int __ba_required; /* Threads needed for completion */
- int __ba_present; /* Threads waiting */
- _pthread_descr __ba_waiting; /* Queue of waiting threads */
- } pthread_barrier_t;
- /* barrier attribute */
- typedef struct {
- int __pshared;
- } pthread_barrierattr_t;
- #endif
- /* Thread identifiers */
- typedef unsigned long int pthread_t;
- #endif /* bits/pthreadtypes.h */
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