diff options
author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-11-16 16:51:31 +0300 |
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committer | Corinna Vinschen <corinna@vinschen.de> | 2016-11-17 13:33:15 +0300 |
commit | e655d3d34be6922158bf7c8256c1d3ad8544957d (patch) | |
tree | 5db74a3797b60f37920828b20a2cdf1ce5be3fd3 /newlib/libc/sys/rtems | |
parent | ba49de472f7ec17df8189c3c011dbf90a576e04b (diff) |
Move pthread types to <sys/_pthreadtypes.h>
This makes it possible provide operating system specific types for
<pthread.h>. It is in line with the FreeBSD header file structure and
allows a future cleanup of <pthread.h> to not expose unrelated things
via <sys/types.h> and <unistd.h>. Glibc uses the similar
<bits/pthreadtypes.h> for this purpose.
Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>
Diffstat (limited to 'newlib/libc/sys/rtems')
-rw-r--r-- | newlib/libc/sys/rtems/include/sys/_pthreadtypes.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/newlib/libc/sys/rtems/include/sys/_pthreadtypes.h b/newlib/libc/sys/rtems/include/sys/_pthreadtypes.h new file mode 100644 index 000000000..e1a88e9cd --- /dev/null +++ b/newlib/libc/sys/rtems/include/sys/_pthreadtypes.h @@ -0,0 +1,211 @@ +/* + * Written by Joel Sherrill <joel.sherrill@OARcorp.com>. + * + * 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) + +#include <sys/sched.h> +#include <sys/cpuset.h> + +/* + * 2.5 Primitive System Data Types, P1003.1c/D10, p. 19. + */ + +typedef __uint32_t pthread_t; /* identify a thread */ + +/* 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 + +typedef struct { + int is_initialized; + void *stackaddr; + int stacksize; + int contentionscope; + int inheritsched; + int schedpolicy; + struct sched_param schedparam; + size_t guardsize; + + /* 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; + size_t affinitysetsize; + cpu_set_t *affinityset; + cpu_set_t affinitysetpreallocated; +} pthread_attr_t; + +#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) */ + +typedef __uint32_t pthread_mutex_t; /* identify a mutex */ + +#define _PTHREAD_MUTEX_INITIALIZER ((pthread_mutex_t) 0xFFFFFFFF) + +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; + +/* 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 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_ */ |