mcu_hi3321_watch/open_source/musl/include/pthread.h
2025-05-26 20:15:20 +08:00

1248 lines
41 KiB
C

/**
* @defgroup posix POSIX
* @defgroup pthread Thread
* @ingroup posix
*/
#ifndef _PTHREAD_H
#define _PTHREAD_H
#ifdef __cplusplus
extern "C" {
#endif
#include "pthread_adapt.h"
#include <features.h>
#define __NEED_time_t
#define __NEED_clockid_t
#define __NEED_struct_timespec
#define __NEED_sigset_t
#define __NEED_pthread_t
#define __NEED_pthread_attr_t
#define __NEED_pthread_mutexattr_t
#define __NEED_pthread_condattr_t
#define __NEED_pthread_rwlockattr_t
#define __NEED_pthread_barrierattr_t
#define __NEED_pthread_mutex_t
#define __NEED_pthread_cond_t
#define __NEED_pthread_rwlock_t
#define __NEED_pthread_barrier_t
#define __NEED_pthread_spinlock_t
#define __NEED_pthread_key_t
#define __NEED_pthread_once_t
#define __NEED_size_t
#include <bits/alltypes.h>
#include <sched.h>
#include <time.h>
/* General thread operations */
/* Thread creation and management. */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to create a thread according to input parameters.
*
* @param pthread [OUT] ID of the created thread.
* @param attr [IN] Pointer to a thread attributes object. If the parameter value is NULL, the default thread attributes are applied.
* @param start_routine [IN] Function entry of the thread.
* @param arg [IN] Parameter of the thread entrance function.
*
* @attention
* <ul>
* <li>The parameter value and return value of the thread entrance function must be void *.</li>
* <li>A smaller priority value indicates a higher priority.</li>
* <li>POSIX issue7 defined pthread has the signal status in pthread, Huawei LiteOS pthread don't have signal status.</li>
* </ul>
*
* @retval #int If successful, the pthread_create() function shall return zero; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL The thread fails to be created due to incorrect parameters.
* @retval #ENOSPC The thread fails to be created because No free task control block is available ,or the SEM control block is not enough.
* @retval #ENOMEM The thread fails to be created because the maximum number of threads is exceeded, or memory allocation fails, or an interrupt in underway.
* @retval #ENOERR The thread is successfully created.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_exit | pthread_join
* @since Huawei LiteOS V100R001C00
*/
int pthread_create(pthread_t *__restrict, const pthread_attr_t *__restrict, void *(*)(void *), void *__restrict);
/**
* @ingroup pthread
*
* @par Description:
* This API is used to mark a thread as detached. When a detached thread terminates, its resources are automatically released back to Huawei LiteOS without the need for another thread to join with the terminated thread.
*
* @param pthread [IN] ID of the thread to be marked as detached.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #int If the call succeeds, pthread_detach() shall return 0; otherwise, an error number shall be returned to indicate the error.
*
* @retval #ESRCH The target thread cannot be marked (the thread does not exist or has exited).
* @retval #EINVAL The target thread is already marked as detached.
* @retval #ENOERR The thread is successfully marked.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_join
* @since Huawei LiteOS V100R001C00
*/
int pthread_detach(pthread_t);
#ifndef __XLT_OS__
_Noreturn void pthread_exit(void *);
#else
/**
* @ingroup pthread
*
* @par Description:
* This API is used to terminate the current thread, and the return value contains only one parameter.
*
* @param retval [OUT] Pointer to the thread return value.
*
* @attention
* <ul>
* <li>Thread termination does not release any application visible process resources, including, but not limited to,
* mutexes and file descriptors.</li>
* </ul>
*
* @retval #void None.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_create | pthread_join
* @since Huawei LiteOS V100R001C00
*/
void pthread_exit(void *);
#endif
/* Wait for the thread to terminate. If thread_return is not NULL then
* the retval from the thread's call to pthread_exit() is stored at thread_return.
*/
/**
* @ingroup pthread
*
* @par Description:
* This API is used to wait for a thread to terminate and reclaim its resources.
*
* @param pthread [IN] ID of the target thread (the waited thread).
* @param thread_return [OUT] Return value sent to the waiting thread.
*
* @attention
* <ul>
* <li>A thread cannot be waited for by multiple threads. If a thread is waited for by multiple threads, ESRCH will be returned.</li>
* </ul>
*
* @retval #int If successful, the pthread_join() function shall return zero; otherwise, an error number shall be returned to indicate the error.
*
* @retval #ESRCH The target thread is not joinable (the thread does not exist, or has exited, or is waited for by another thread).
* @retval #EDEADLK A deadlock results because a thread is waiting for itself to terminate.
* @retval #EINVAL The target thread is not joinable.
* @retval #ENOERR The target thread is successfully joined with.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_detach
* @since Huawei LiteOS V100R001C00
*/
int pthread_join(pthread_t, void **);
#ifdef __GNUC__
__attribute__((const))
#endif
/**
* @ingroup pthread
*
* @par Description:
* This API is used to acquire the thread identifier of the calling thread.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval pthread_t Thread ID [0,LOSCFG_BASE_CORE_TSK_LIMIT].
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see None
* @since Huawei LiteOS V100R001C00
*/
pthread_t pthread_self(void);
/* Compare two thread identifiers. */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to compare whether two thread IDs belong to the same thread.
*
* @param thread1 [IN] ID of the thread 1 being compared.
* @param thread2 [IN] ID of the thread 2 being compared.
*
* @attention
* <ul>
* <li>Just compare the thread ID, not judge the validity of the thread ID.</li>
* </ul>
*
* @retval #int Any value other than 0 mean that two threads are equal.
* @retval #0 The two threads are unequal.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see None
* @since Huawei LiteOS V100R001C00
*/
int pthread_equal(pthread_t, pthread_t);
#ifndef __XLT_OS__
#ifndef __cplusplus
#define pthread_equal(x,y) ((x)==(y))
#endif
#endif
int pthread_setcancelstate(int, int *);
int pthread_setcanceltype(int, int *);
void pthread_testcancel(void);
int pthread_cancel(pthread_t);
/* Get scheduling policy and parameters for the thread */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to acquire the scheduling policy and priority of a thread.
*
* @param pthread [IN] ID of the thread whose scheduling policy is to be read.
* @param policy [OUT] Acquired scheduling policy.
* @param param [OUT] Acquired scheduling priority.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #int If successful, the pthread_getschedparam() function shall return zero; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The scheduling policy and priority of the thread is successfully acquired.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_setschedparam
* @since Huawei LiteOS V100R001C00
*/
int pthread_getschedparam(pthread_t, int *__restrict, struct sched_param *__restrict);
/* Set scheduling policy and parameters for the thread */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to set the scheduling policy and priority of a thread.
*
* @param pthread [IN] ID of the thread whose scheduling policy is to be set.
* @param policy [IN] Specified scheduling policy.
* @param param [IN] Pointer to the scheduling priority.
*
* @attention
* <ul>
* <li>The scheduling policy must be SCHED_OTHER, SCHED_FIFO, or SCHED_RR.</li>
* <li>Only SCHED_RR is supported now. An error code will be returned if the value is set to the other two scheduling policies.</li>
* <li>The content priority specified by the param parameter must fall within the OS priority range[0,31].</li>
* <li>A smaller priority value indicates a higher priority.</li>
* </ul>
*
* @retval #int If successful, the pthread_setschedparam() function shall return zero; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The scheduling policy and priority of the thread is successfully set.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_getschedparam
* @since Huawei LiteOS V100R001C00
*/
int pthread_setschedparam(pthread_t, int, const struct sched_param *);
int pthread_setschedprio(pthread_t, int);
/* Call init_routine just the once per control variable. */
/**
* @ingroup pthread
*
* @par Decription:
* This API is used to call the initialization routine at most once.
*
* @param once_control [IN/OUT] Once-control parameter.
* @param init_routine [IN] Initialization routine function.
*
* @attention
* <ul>
* <li>The control variable once_control must be statically initialized using PTHREAD_ONCE_INIT. Otherwise, this API will not work as expected.</li>
* </ul>
*
* @retval #int Upon successful completion, pthread_once() shall return zero; otherwise, an error number shall be returned to indicate the error.
* @retval #EINVAL One or more parameters are invalid.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see None
* @since Huawei LiteOS V100R001C00
*/
int pthread_once(pthread_once_t *, void (*)(void));
int pthread_mutex_init(pthread_mutex_t *__restrict, const pthread_mutexattr_t *__restrict);
int pthread_mutex_lock(pthread_mutex_t *);
int pthread_mutex_unlock(pthread_mutex_t *);
int pthread_mutex_trylock(pthread_mutex_t *);
int pthread_mutex_timedlock(pthread_mutex_t *__restrict, const struct timespec *__restrict);
int pthread_mutex_destroy(pthread_mutex_t *);
int pthread_mutex_consistent(pthread_mutex_t *);
int pthread_mutex_getprioceiling(const pthread_mutex_t *__restrict, int *__restrict);
int pthread_mutex_setprioceiling(pthread_mutex_t *__restrict, int, int *__restrict);
/**
* @ingroup pthread
* @par Description:
* This API is used to initialize a condition variable.
*
* @param cond [OUT] Condition variable object.
* @param attr [IN] Condition variable attribute. The passed value and the default value of this parameter can be only set to PTHREAD_PROCESS_PRIVATE.
*
* @attention
* <ul>
* <li>A condition variable cannot be initialized by multiple threads. When a condition variable needs to be reinitialized, it must not have been used.</li>
* </ul>
*
* @retval #EINVAL One or more parameters are invalid.
* @retval #ENOERR The condition variable is successfully initialized.
* @retval #ENOMEM Failed to allocate in-memory resources for the operation.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_cond_destroy
*
* @since Huawei LiteOS V100R001C00
*/
int pthread_cond_init(pthread_cond_t *__restrict, const pthread_condattr_t *__restrict);
/**
* @ingroup pthread
* @par Description:
* This API is used to destroy a condition variable.
*
* @param cond [IN] Condition variable object.
*
* @attention
* <ul>
* <li>The condition variable is using memory and not destroyed.</li>
* </ul>
*
* @retval #ENVAIL The parameter is invalid.
* @retval #EBUSY The condition variable is being in use.
* @retval #ENOERR The condition variable is successfully destroyed.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_cond_init
*
* @since Huawei LiteOS V100R001C00
*/
int pthread_cond_destroy(pthread_cond_t *);
/**
* @ingroup pthread
* @par Description:
* A thread has been being blocked on a condition variable and waits to be awoken by the condition variable.
*
* @param cond [IN] Condition variable object.
* @param mutex [IN] Mutex object.
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #ENVAIL One or more parameters are invalid.
* @retval #ENOERR The thread is successfully awoken.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_cond_signal | pthread_cond_broadcast
*
* @since Huawei LiteOS V100R001C00
*/
int pthread_cond_wait(pthread_cond_t *__restrict, pthread_mutex_t *__restrict);
/**
* @ingroup pthread
* @par Description:
* A thread has been being blocked on a condition variable and is awoken until the set relative time has passed or the thread obtains a condition variable.
*
* @param cond [IN] Condition variable object.
* @param mutex [IN] Mutex object.
* @param abstime [IN] Time object.
*
* @attention
* <ul>
* <li>The waiting time is a relative time.</li>
* <li> Setting the timeout interval to a past time period is not supported.</li>
* </ul>
*
* @retval #ENOERR The thread receives a signal and is successfully awoken.
* @retval #ENVAIL One or more parameters are invalid.
* @retval #ETIMEDOUT The waiting time has passed.
* @retval #ENOMEM Failed to allocate in-memory resources for the operation.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_cond_wait
*
* @since Huawei LiteOS V100R001C00
*/
int pthread_cond_timedwait(pthread_cond_t *__restrict, pthread_mutex_t *__restrict, const struct timespec *__restrict);
/**
* @ingroup pthread
* @par Description:
* This API is used to unblock all threads blocked on a condition variable and wake all these threads.
*
* @param cond [IN] Condition variable object.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #ENVAIL The parameter is invalid.
* @retval #ENOERR All threads blocked on this condition variable are successfully unblocked.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_cond_wait
*
* @since Huawei LiteOS V100R001C00
*/
int pthread_cond_broadcast(pthread_cond_t *);
/**
* @ingroup pthread
* @par Description:
* This API is used to unblock a thread blocked on a condition variable and wakes this thread.
*
* @param cond [IN] Condition variable object.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #ENVAIL The parameter is invalid.
* @retval #ENOERR The thread is successfully unlocked.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_cond_wait
*
* @since Huawei LiteOS V100R001C00
*/
int pthread_cond_signal(pthread_cond_t *);
int pthread_rwlock_init(pthread_rwlock_t *__restrict, const pthread_rwlockattr_t *__restrict);
int pthread_rwlock_destroy(pthread_rwlock_t *);
int pthread_rwlock_rdlock(pthread_rwlock_t *);
int pthread_rwlock_tryrdlock(pthread_rwlock_t *);
int pthread_rwlock_timedrdlock(pthread_rwlock_t *__restrict, const struct timespec *__restrict);
int pthread_rwlock_wrlock(pthread_rwlock_t *);
int pthread_rwlock_trywrlock(pthread_rwlock_t *);
int pthread_rwlock_timedwrlock(pthread_rwlock_t *__restrict, const struct timespec *__restrict);
int pthread_rwlock_unlock(pthread_rwlock_t *);
int pthread_spin_init(pthread_spinlock_t *, int);
int pthread_spin_destroy(pthread_spinlock_t *);
int pthread_spin_lock(pthread_spinlock_t *);
int pthread_spin_trylock(pthread_spinlock_t *);
int pthread_spin_unlock(pthread_spinlock_t *);
int pthread_barrier_init(pthread_barrier_t *__restrict, const pthread_barrierattr_t *__restrict, unsigned);
int pthread_barrier_destroy(pthread_barrier_t *);
int pthread_barrier_wait(pthread_barrier_t *);
int pthread_key_create(pthread_key_t *, void (*)(void *));
int pthread_key_delete(pthread_key_t);
void *pthread_getspecific(pthread_key_t);
int pthread_setspecific(pthread_key_t, const void *);
/* Thread attribute handling. */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to initialize a thread attributes object into default attributes.
*
* @param attr [IN] Pointer to the thread attributes object to be initialized.
*
* @attention
* <ul>
* <li>Default thread attributes</li>
* <li>detachstate = PTHREAD_CREATE_JOINABLE</li>
* <li>schedpolicy = SCHED_RR</li>
* <li>schedparam.sched_priority = LOSCFG_BASE_CORE_TSK_DEFAULT_PRIO</li>
* <li>inheritsched = PTHREAD_INHERIT_SCHED</li>
* <li>scope = PTHREAD_SCOPE_SYSTEM</li>
* <li>stackaddr_set = 0</li>
* <li>stackaddr = NULL</li>
* <li>stacksize_set = 1</li>
* <li>stacksize = LOSCFG_BASE_CORE_TSK_DEFAULT_STACK_SIZE</li>
* </ul>
*
* @retval #int Upon successful completion, pthread_attr_init() shall return a value of 0; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL The input parameter is NULL.
* @retval #ENOERR The thread attributes object is successfully initialized.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_destroy
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_init(pthread_attr_t *);
/* Destroy thread attributes object */
/**
* @ingroup pthread
*
* @par Dependency:
* This API is used to destroy a thread attributes object.
*
* @param attr [IN] Pointer to the thread attributes object to be destroyed.
*
* @attention
* <ul>
* <li>This API does not take effect on Huawei LiteOS. In fact, nothing has been done in this API.</li>
* </ul>
*
* @retval #int Upon successful completion, pthread_attr_destroy() shall return a value of 0; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL The input parameter is NULL.
* @retval #ENOERR The thread attributes object is successfully destroyed.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_init
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_destroy(pthread_attr_t *);
int pthread_attr_getguardsize(const pthread_attr_t *__restrict, size_t *__restrict);
int pthread_attr_setguardsize(pthread_attr_t *, size_t);
/* Get current minimal stack size. */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to acquire the stack size attribute of a thread attribute object.
*
* @param attr [IN] Pointer to the thread attributes object to be read.
* @param stacksize [OUT] Pointer to the acquired stack size.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #int Upon successful completion, pthread_attr_getstacksize() shall return a value of 0; otherwise, an error number shall be returned to indicate the error.
* The pthread_attr_getstacksize() function stores the stacksize attribute value in stacksize if successful.
*
* @retval #EINVAL invalid parameter, or the stack size left unspecified.
* @retval #ENOERR The stack size attribute is successfully acquired.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_setstacksize
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_getstacksize(const pthread_attr_t *__restrict, size_t *__restrict);
/* Set minimum creation stack size. */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to set the stack size attribute of a thread attribute object.
*
* @param attr [OUT] Pointer to the thread attributes object to be set.
* @param stacksize [IN] Specified stack size.
*
* @attention
* <ul>
* <li>The stack size must fall within an appropriate range and be greater than PTHREAD_STACK_MIN.
* If the stack size attribute is left unspecified, the default stack size will be used.</li>
* </ul>
*
* @retval #int Upon successful completion, pthread_attr_setstacksize() shall return a value of 0; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The stack size attribute is successfully set.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_getstacksize
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_setstacksize(pthread_attr_t *, size_t);
/* Get the detachstate attribute */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to acquire the detach state attribute of a thread attributes object.
*
* @param attr [IN] Pointer to the thread attributes object to be read.
* @param detachstate [OUT] Pointer to the acquired detach state attribute.
*
* @attention
* <ul>
* <li>Detachstate shall be set to either PTHREAD_CREATE_DETACHED or PTHREAD_CREATE_JOINABLE.</li>
* </ul>
*
* @retval int Upon successful completion, pthread_attr_getdetachstate() shall return a value of 0; otherwise, an error number shall be returned to indicate the error.
* The pthread_attr_getdetachstate() function stores the value of the detachstate attribute in detachstate if successful.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The detach state attribute is successfully acquired.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_setdetachstate
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_getdetachstate(const pthread_attr_t *, int *);
/* Set the detachstate attribute */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to set the detach state attribute of a thread attributes object.
*
* @param attr [OUT] Pointer to the thread attributes object to be set.
* @param detachstate [IN] Detach state attribute.
*
* @attention
* <ul>
* <li>The detach state attribute must be either PTHREAD_CREATE_JOINABLE or PTHREAD_CREATE_DETACHED. Otherwise, the attempt to set the detach state attribute will fail.</li>
* </ul>
*
* @retval #int Upon successful completion, pthread_attr_setdetachstate() shall return a value of 0; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The detach state attribute is successfully set.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_getdetachstate
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_setdetachstate(pthread_attr_t *, int);
int pthread_attr_getstack(const pthread_attr_t *__restrict, void **__restrict, size_t *__restrict);
int pthread_attr_setstack(pthread_attr_t *, void *, size_t);
#ifdef __XLT_OS__
/* Set starting address of stack. Whether this is at the start or end of
* the memory block allocated for the stack depends on whether the stack
* grows up or down.
*/
/**
* @ingroup pthread
*
* @par Description:
* This API is used to set the stack address attribute of a thread attributes object. This attribute specifies the start address of a stack.
*
* @param attr [OUT] Pointer to the thread attributes object to be set.
* @param stackaddr [IN] Specified stack address.
*
* @attention
* <ul>
* <li>This API does not take effect on Huawei LiteOS Kernel.</li>
* </ul>
*
* @retval #int Upon successful completion, pthread_attr_setstackaddr() shall return a value of 0; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The stack address attribute is successfully set.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_getstackaddr
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_setstackaddr(pthread_attr_t *, void *);
/* Get any previously set stack address. */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to acquire the stack address attribute of a thread attributes object. This attribute specifies the starting address of a stack.
*
* @param attr [IN] Pointer to the thread attributes object to be read.
* @param stackaddr [OUT] Pointer to the acquired starting address of stack.
*
* @attention
* <ul>
* <li>This API does not take effect on Huawei LiteOS Kernel.</li>
* </ul>
*
* @retval #int Upon successful completion, pthread_attr_getstackaddr() shall return a value of 0; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The stack address attribute is successfully acquired.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_setstackaddr
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_getstackaddr(const pthread_attr_t *, void **);
#endif
/* Get scheduling contention scope */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to acquire the contention scope attribute of a thread attributes object.
*
* @param attr [IN] Pointer to the thread attributes object to be read.
* @param scope [OUT] Pointer to the acquired contention scope attribute.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #int If successful, the pthread_attr_getscope() function shall return zero; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The contention scope attribute is successfully acquired.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_setscope
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_getscope(const pthread_attr_t *__restrict, int *__restrict);
/* Set scheduling contention scope */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to set the contention scope attribute of a thread attributes object.
*
* @param attr [OUT] Pointer to the thread attributes object to be set.
* @param scope [IN] Contention scope attribute.
*
* @attention
* <ul>
* <li>The contention scope attribute can only be PTHREAD_SCOPE_SYSTEM. PTHREAD_SCOPE_PROCES is not supported.</li>
* </ul>
*
* @retval #int If successful, the pthread_attr_setscope() function shall return zero; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOTSUP The specified contention scope attribute value is not supported.
* @retval #ENOERR The contention scope attribute is successfully set.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_getscope
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_setscope(pthread_attr_t *, int);
/* Get scheduling policy */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to acquire the scheduling policy attribute of a thread attributes object.
*
* @param attr [IN] Pointer to the thread attributes object to be read.
* @param policy [OUT] Pointer to the acquired scheduling policy attribute.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #int If successful, the pthread_attr_getschedpolicy() function shall return zero; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The scheduling policy attribute is successfully obtained.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_setschedpolicy
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_getschedpolicy(const pthread_attr_t *__restrict, int *__restrict);
/* Set scheduling policy */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to set the scheduling policy attribute of a thread attributes object.
*
* @param attr [OUT] Pointer to the thread attributes object to be set.
* @param policy [IN] Scheduling policy attribute.
*
* @attention
* <ul>
* <li>The scheduling policy attribute is SCHED_OTHER, SCHED_FIFO, or SCHED_RR.</li>
* <li>Only SCHED_RR is supported now. An error code will be returned if the value is set to the other two scheduling policies.</li>
* </ul>
*
* @retval #int If successful, the pthread_attr_setschedpolicy() function shall return zero; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The scheduling policy attribute is successfully set.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_getschedpolicy
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_setschedpolicy(pthread_attr_t *, int);
/* Get scheduling parameters */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to acquire the scheduling parameter attributes of a thread attributes object. The scheduling parameter attributes indicate the thread priorities.
*
* @param attr [IN] Pointer to the thread attributes object to be read.
* @param param [OUT] Pointer to the acquired scheduling parameter attributes object.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #int If successful, the pthread_attr_getschedparam() function shall return zero; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The scheduling parameter attributes are successfully acquired.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_setschedparam
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_getschedparam(const pthread_attr_t *__restrict, struct sched_param *__restrict);
/* Set scheduling parameters */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to set the scheduling parameter attributes of a thread attributes object. The scheduling parameter attributes indicate thread priorities.
*
* @param attr [OUT] Pointer to the thread attributes object to be set.
* @param param [IN] Pointer to the scheduling parameter attributes object.
*
*@attention
* <ul>
* <li>The priority of the scheduling parameter attributes must be in the range of [0, 31].</li>
* </ul>
*
* @retval #int If successful, the pthread_attr_setschedparam() function shall return zero; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOTSUP made to set the attribute to an unsupported value.
* @retval #ENOERR The scheduling parameter attributes are successfully set.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_getschedparam
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_setschedparam(pthread_attr_t *__restrict, const struct sched_param *__restrict);
/* Get scheduling inheritance attribute */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to acquire the inherit scheduler attribute of a thread attributes object.
*
* @param attr [IN] Pointer to the thread attributes object to be read.
* @param inherit [OUT] Pointer to the acquired inherit scheduler attribute.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #int If successful, the pthread_attr_getinheritsched() function shall return zero; otherwise, an error number shall be returned to indicate the error.
*
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The inherit scheduler attribute is successfully acquired.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_setinheritsched
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_getinheritsched(const pthread_attr_t *__restrict, int *__restrict);
/* Set scheduling inheritance attribute */
/**
* @ingroup pthread
*
* @par Description:
* This API is used to set the inherit scheduler attribute of a thread attributes object.
*
* @param attr [OUT] Pointer to the thread attributes object to be set.
* @param inherit [IN] Inherit scheduler attribute.
*
* @attention
* <ul>
* <li>The inherit scheduler attribute must be either PTHREAD_INHERIT_SCHED or PTHREAD_EXPLICIT_SCHED.</li>
* </ul>
*
* @retval #int If successful, the pthread_attr_setinheritsched() function shall return zero; otherwise, an error number shall be returned to indicate the error.
* @retval #EINVAL invalid parameter.
* @retval #ENOERR The inherit scheduler attribute is successfully set.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
* @see pthread_attr_getinheritsched
* @since Huawei LiteOS V100R001C00
*/
int pthread_attr_setinheritsched(pthread_attr_t *, int);
int pthread_mutexattr_destroy(pthread_mutexattr_t *);
int pthread_mutexattr_getprioceiling(const pthread_mutexattr_t *__restrict, int *__restrict);
int pthread_mutexattr_getprotocol(const pthread_mutexattr_t *__restrict, int *__restrict);
int pthread_mutexattr_getpshared(const pthread_mutexattr_t *__restrict, int *__restrict);
int pthread_mutexattr_getrobust(const pthread_mutexattr_t *__restrict, int *__restrict);
int pthread_mutexattr_gettype(const pthread_mutexattr_t *__restrict, int *__restrict);
int pthread_mutexattr_init(pthread_mutexattr_t *);
int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *, int);
int pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int);
int pthread_mutexattr_setpshared(pthread_mutexattr_t *, int);
int pthread_mutexattr_setrobust(pthread_mutexattr_t *, int);
int pthread_mutexattr_settype(pthread_mutexattr_t *, int);
/**
* @ingroup pthread
* @par Description:
* This API is used to initialize the condition variable attribute.
* This API does not task effect on Huawei LiteOS Kernel.
*
* @param attr [OUT] Condition variable attribute.
*
* @attention
* <ul>
* <li>The condition variable attribute can be only set to PTHREAD_PROCESS_PRIVATE.</li>
* </ul>
*
* @retval #ENVAIL The parameter is invalid.
* @retval #ENOERR The condition variable attribute is successfully initialized.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_condattr_setpshared | pthread_condattr_getpshared
*
* @since Huawei LiteOS V100R001C00
*/
int pthread_condattr_init(pthread_condattr_t *);
/**
* @ingroup pthread
* @par Description:
* This API is used to destroy the condition variable attribute.
*
* @param attr [IN] Condition variable attribute.
*
* @attention
* <ul>
* <li>The condition variable attribute can be only set to PTHREAD_PROCESS_PRIVATE.</li>
* <li>This API does not task effect on Huawei LiteOS Kernel.</li>
* </ul>
*
* @retval #ENVAIL The parameter is invalid.
* @retval #ENOERR The condition variable attribute is successfully destroied.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_condattr_init
*
* @since Huawei LiteOS V100R001C00
*/
int pthread_condattr_destroy(pthread_condattr_t *);
int pthread_condattr_setclock(pthread_condattr_t *, clockid_t);
/**
* @ingroup pthread
* @par Description:
* This API is used to set the condition variable attribute.
*
* @param attr [IN] Condition variable attribute.
* @param pshared [OUT] Condition variable attribute, which is always PTHREAD_PROCESS_PRIVATE.
*
* @attention
* <ul>
* <li>The condition variable attribute can be only set to PTHREAD_PROCESS_PRIVATE.</li>
* <li>This API does not task effect on Huawei LiteOS Kernel.</li>
* </ul>
*
* @retval #ENVAIL One or more parameters are invalid.
* @retval #ENOERR The condition variable attribute is successfully set.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_condattr_getpshared
*
* @since Huawei LiteOS V100R001C00
*/
int pthread_condattr_setpshared(pthread_condattr_t *, int);
int pthread_condattr_getclock(const pthread_condattr_t *__restrict, clockid_t *__restrict);
/**
* @ingroup pthread
* @par Description:
* This API is used to obtain the condition variable attribute.
*
* @param attr [IN] Condition variable attribute.
* @param pshared [OUT] Obtained condition variable attribute, which is always PTHREAD_PROCESS_PRIVATE.
*
* @attention
* <ul>
* <li>The condition variable attribute can be only set to PTHREAD_PROCESS_PRIVATE.</li>
* <li>This API does not task effect on Huawei LiteOS Kernel.</li>
* </ul>
*
* @retval #ENVAIL One or more parameters are invalid.
* @retval #ENOERR The condition variable attribute is successfully obtained.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_condattr_setpshared
*
* @since Huawei LiteOS V100R001C00
*/
int pthread_condattr_getpshared(const pthread_condattr_t *__restrict, int *__restrict);
int pthread_rwlockattr_init(pthread_rwlockattr_t *);
int pthread_rwlockattr_destroy(pthread_rwlockattr_t *);
int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *, int);
int pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *__restrict, int *__restrict);
int pthread_barrierattr_destroy(pthread_barrierattr_t *);
int pthread_barrierattr_getpshared(const pthread_barrierattr_t *__restrict, int *__restrict);
int pthread_barrierattr_init(pthread_barrierattr_t *);
int pthread_barrierattr_setpshared(pthread_barrierattr_t *, int);
/**
* @ingroup pthread
* @par Description:
* The function is not supported.
*
* @attention
* <ul>
* <li>The function is not supported.</li>
* </ul>
*
* @retval #int zero.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see None
*
* @since Huawei LiteOS V100R001C00
*/
int pthread_atfork(void (*)(void), void (*)(void), void (*)(void));
int pthread_getconcurrency(void);
int pthread_setconcurrency(int);
int pthread_getcpuclockid(pthread_t, clockid_t *);
#ifndef __XLT_OS__
struct __ptcb {
void (*__f)(void *);
void *__x;
struct __ptcb *__next;
};
void _pthread_cleanup_push(struct __ptcb *, void (*)(void *), void *);
void _pthread_cleanup_pop(struct __ptcb *, int);
#endif
struct pthread_cleanup_buffer {
void (*routine)(void *);
void *arg;
struct pthread_cleanup_buffer *next;
};
#define pthread_cleanup_push(routine, arg) do { struct pthread_cleanup_buffer cb; pthread_cleanup_push_inner(&cb, routine, arg);
#define pthread_cleanup_pop(arg) pthread_cleanup_pop_inner(&cb, (arg)); } while(0)
#ifdef _GNU_SOURCE
struct cpu_set_t;
/**
* @ingroup pthread
*
* @par Description:
* This API is used to get the cpu affinity mask from the thread.
*
* @param pthread [IN] ID of the thread whose affinity mask is to be read.
* @param cpusetsize [IN] Size of cpuset in bytes.
* @param cpuset [OUT] Pointer to the cpu affinity mask.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #EINVAL Invalid parameter.
* @retval #ENOERR The cpu affinity mask of the thread is successfully acquired.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_setaffinity_np
*
* @since Huawei LiteOS V200R003C00
*/
int pthread_getaffinity_np(pthread_t, size_t, struct cpu_set_t *);
/**
* @ingroup pthread
*
* @par Description:
* This API is used to set the cpu affinity mask for the thread.
*
* @param pthread [IN] ID of the thread whose affinity mask is to be set.
* @param cpusetsize [IN] Size of cpuset in bytes.
* @param cpuset [IN] Pointer to the cpu affinity mask.
*
* @attention
* <ul>
* <li>The cpu affinity mask attributes must be in the range of [1, LOSCFG_KERNEL_CPU_MASK].</li>
* </ul>
*
* @retval #EINVAL Invalid parameter.
* @retval #ENOERR The cpu affinity mask of the thread is successfully set.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_getaffinity_np
*
* @since Huawei LiteOS V200R003C00
*/
int pthread_setaffinity_np(pthread_t, size_t, const struct cpu_set_t *);
#ifdef __XLT_OS__
/**
* @ingroup pthread
*
* @par Description:
* This API is used to set the cpu affinity mask attributes of a thread attributes object.
*
* @param attr [OUT] Pointer to the thread attributes object to be set.
* @param cpusetsize [IN] Size of cpuset in bytes.
* @param cpuset [IN] Pointer to the cpu affinity mask.
*
* @attention
* <ul>
* <li>The cpu affinity mask attributes must be in the range of [1, LOSCFG_KERNEL_CPU_MASK].</li>
* </ul>
*
* @retval #EINVAL Invalid parameter.
* @retval #ENOERR The cpu affinity mask attributes are successfully set.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_attr_getaffinity_np
*
* @since Huawei LiteOS V200R003C00
*/
int pthread_attr_setaffinity_np(pthread_attr_t *attr, size_t cpusetsize, const cpu_set_t *cpuset);
/**
* @ingroup pthread
*
* @par Description:
* This API is used to get the cpu affinity mask attributes of a thread attributes object.
*
* @param attr [IN] Pointer to the thread attributes object to be read.
* @param cpusetsize [IN] Size of cpuset in bytes.
* @param cpuset [OUT] Pointer to the cpu affinity mask.
*
* @attention
* <ul>
* <li>None.</li>
* </ul>
*
* @retval #EINVAL Invalid parameter.
* @retval #ENOERR The cpu affinity mask attributes are successfully acquired.
*
* @par Dependency:
* <ul><li>pthread.h</li></ul>
*
* @see pthread_attr_setaffinity_np
*
* @since Huawei LiteOS V200R003C00
*/
int pthread_attr_getaffinity_np(const pthread_attr_t *attr, size_t cpusetsize, cpu_set_t *cpuset);
#endif
int pthread_getattr_np(pthread_t, pthread_attr_t *);
int pthread_setname_np(pthread_t, const char *);
int pthread_getattr_default_np(pthread_attr_t *);
int pthread_setattr_default_np(const pthread_attr_t *);
int pthread_tryjoin_np(pthread_t, void **);
int pthread_timedjoin_np(pthread_t, void **, const struct timespec *);
#endif
#if _REDIR_TIME64
__REDIR(pthread_mutex_timedlock, __pthread_mutex_timedlock_time64);
__REDIR(pthread_cond_timedwait, __pthread_cond_timedwait_time64);
__REDIR(pthread_rwlock_timedrdlock, __pthread_rwlock_timedrdlock_time64);
__REDIR(pthread_rwlock_timedwrlock, __pthread_rwlock_timedwrlock_time64);
#ifdef _GNU_SOURCE
__REDIR(pthread_timedjoin_np, __pthread_timedjoin_np_time64);
#endif
#endif
#ifdef __cplusplus
}
#endif
#endif