/* * Written by Joel Sherrill . * * COPYRIGHT (c) 1989-2013, 2015. * On-Line Applications Research Corporation (OAR). * * Permission to use, copy, modify, and distribute this software for any * purpose without fee is hereby granted, provided that this entire notice * is included in all copies of any software which is or includes a copy * or modification of this software. * * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED * WARRANTY. IN PARTICULAR, THE AUTHOR MAKES NO REPRESENTATION * OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS * SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. */ #ifndef _SYS__PTHREADTYPES_H_ #define _SYS__PTHREADTYPES_H_ #if defined(_POSIX_THREADS) || __POSIX_VISIBLE >= 199506 #include /* * 2.5 Primitive System Data Types, P1003.1c/D10, p. 19. */ #if defined(__XMK__) typedef unsigned int pthread_t; /* identify a thread */ #else typedef __uint32_t pthread_t; /* identify a thread */ #endif /* P1003.1c/D10, p. 118-119 */ #define PTHREAD_SCOPE_PROCESS 0 #define PTHREAD_SCOPE_SYSTEM 1 /* P1003.1c/D10, p. 111 */ #define PTHREAD_INHERIT_SCHED 1 /* scheduling policy and associated */ /* attributes are inherited from */ /* the calling thread. */ #define PTHREAD_EXPLICIT_SCHED 2 /* set from provided attribute object */ /* P1003.1c/D10, p. 141 */ #define PTHREAD_CREATE_DETACHED 0 #define PTHREAD_CREATE_JOINABLE 1 #if defined(__XMK__) typedef struct pthread_attr_s { int contentionscope; struct sched_param schedparam; int detachstate; void *stackaddr; size_t stacksize; } pthread_attr_t; #define PTHREAD_STACK_MIN 200 #else /* !defined(__XMK__) */ typedef struct { int is_initialized; void *stackaddr; int stacksize; int contentionscope; int inheritsched; int schedpolicy; struct sched_param schedparam; /* P1003.4b/D8, p. 54 adds cputime_clock_allowed attribute. */ #if defined(_POSIX_THREAD_CPUTIME) int cputime_clock_allowed; /* see time.h */ #endif int detachstate; } pthread_attr_t; #endif /* !defined(__XMK__) */ #if defined(_POSIX_THREAD_PROCESS_SHARED) /* NOTE: P1003.1c/D10, p. 81 defines following values for process_shared. */ #define PTHREAD_PROCESS_PRIVATE 0 /* visible within only the creating process */ #define PTHREAD_PROCESS_SHARED 1 /* visible too all processes with access to */ /* the memory where the resource is */ /* located */ #endif #if defined(_POSIX_THREAD_PRIO_PROTECT) /* Mutexes */ /* Values for blocking protocol. */ #define PTHREAD_PRIO_NONE 0 #define PTHREAD_PRIO_INHERIT 1 #define PTHREAD_PRIO_PROTECT 2 #endif #if defined(_UNIX98_THREAD_MUTEX_ATTRIBUTES) /* Values for mutex type */ /* The following defines are part of the X/Open System Interface (XSI). */ /* * This type of mutex does not detect deadlock. A thread attempting to * relock this mutex without first unlocking it shall deadlock. Attempting * to unlock a mutex locked by a different thread results in undefined * behavior. Attempting to unlock an unlocked mutex results in undefined * behavior. */ #define PTHREAD_MUTEX_NORMAL 0 /* * A thread attempting to relock this mutex without first unlocking * it shall succeed in locking the mutex. The relocking deadlock which * can occur with mutexes of type PTHREAD_MUTEX_NORMAL cannot occur with * this type of mutex. Multiple locks of this mutex shall require the * same number of unlocks to release the mutex before another thread can * acquire the mutex. A thread attempting to unlock a mutex which another * thread has locked shall return with an error. A thread attempting to * unlock an unlocked mutex shall return with an error. */ #define PTHREAD_MUTEX_RECURSIVE 1 /* * This type of mutex provides error checking. A thread attempting * to relock this mutex without first unlocking it shall return with an * error. A thread attempting to unlock a mutex which another thread has * locked shall return with an error. A thread attempting to unlock an * unlocked mutex shall return with an error. */ #define PTHREAD_MUTEX_ERRORCHECK 2 /* * Attempting to recursively lock a mutex of this type results * in undefined behavior. Attempting to unlock a mutex of this type * which was not locked by the calling thread results in undefined * behavior. Attempting to unlock a mutex of this type which is not locked * results in undefined behavior. An implementation may map this mutex to * one of the other mutex types. */ #define PTHREAD_MUTEX_DEFAULT 3 #endif /* !defined(_UNIX98_THREAD_MUTEX_ATTRIBUTES) */ #if defined(__XMK__) typedef unsigned int pthread_mutex_t; /* identify a mutex */ typedef struct { int type; } pthread_mutexattr_t; #else /* !defined(__XMK__) */ typedef __uint32_t pthread_mutex_t; /* identify a mutex */ typedef struct { int is_initialized; #if defined(_POSIX_THREAD_PROCESS_SHARED) int process_shared; /* allow mutex to be shared amongst processes */ #endif #if defined(_POSIX_THREAD_PRIO_PROTECT) int prio_ceiling; int protocol; #endif #if defined(_UNIX98_THREAD_MUTEX_ATTRIBUTES) int type; #endif int recursive; } pthread_mutexattr_t; #endif /* !defined(__XMK__) */ #define _PTHREAD_MUTEX_INITIALIZER ((pthread_mutex_t) 0xFFFFFFFF) /* Condition Variables */ typedef __uint32_t pthread_cond_t; /* identify a condition variable */ #define _PTHREAD_COND_INITIALIZER ((pthread_cond_t) 0xFFFFFFFF) typedef struct { int is_initialized; clock_t clock; /* specifiy clock for timeouts */ #if defined(_POSIX_THREAD_PROCESS_SHARED) int process_shared; /* allow this to be shared amongst processes */ #endif } pthread_condattr_t; /* a condition attribute object */ /* Keys */ typedef __uint32_t pthread_key_t; /* thread-specific data keys */ typedef struct { int is_initialized; /* is this structure initialized? */ int init_executed; /* has the initialization routine been run? */ } pthread_once_t; /* dynamic package initialization */ #define _PTHREAD_ONCE_INIT { 1, 0 } /* is initialized and not run */ #endif /* defined(_POSIX_THREADS) || __POSIX_VISIBLE >= 199506 */ /* POSIX Barrier Types */ #if defined(_POSIX_BARRIERS) typedef __uint32_t pthread_barrier_t; /* POSIX Barrier Object */ typedef struct { int is_initialized; /* is this structure initialized? */ #if defined(_POSIX_THREAD_PROCESS_SHARED) int process_shared; /* allow this to be shared amongst processes */ #endif } pthread_barrierattr_t; #endif /* defined(_POSIX_BARRIERS) */ /* POSIX Spin Lock Types */ #if defined(_POSIX_SPIN_LOCKS) typedef __uint32_t pthread_spinlock_t; /* POSIX Spin Lock Object */ #endif /* defined(_POSIX_SPIN_LOCKS) */ /* POSIX Reader/Writer Lock Types */ #if defined(_POSIX_READER_WRITER_LOCKS) typedef __uint32_t pthread_rwlock_t; /* POSIX RWLock Object */ #define _PTHREAD_RWLOCK_INITIALIZER ((pthread_rwlock_t) 0xFFFFFFFF) typedef struct { int is_initialized; /* is this structure initialized? */ #if defined(_POSIX_THREAD_PROCESS_SHARED) int process_shared; /* allow this to be shared amongst processes */ #endif } pthread_rwlockattr_t; #endif /* defined(_POSIX_READER_WRITER_LOCKS) */ #endif /* ! _SYS__PTHREADTYPES_H_ */