#ifndef _PTHREAD_H
#define _PTHREAD_H

#include <abi-bits/clockid_t.h>
#include <bits/cpu_set.h>
// TODO: pthread is not required to define size_t.
#include <bits/size_t.h>
#include <bits/posix/pthread_t.h>
#include <bits/threads.h>
#include <mlibc-config.h>

#include <signal.h>
#include <stdint.h>

// pthread.h is required to include sched.h and time.h
#include <sched.h>
#include <time.h>

#ifdef __cplusplus
extern "C" {
#endif

#define PTHREAD_CREATE_JOINABLE __MLIBC_THREAD_CREATE_JOINABLE
#define PTHREAD_CREATE_DETACHED __MLIBC_THREAD_CREATE_DETACHED

// Values for pthread_attr_{get,set}scope
#define PTHREAD_SCOPE_SYSTEM 0
#define PTHREAD_SCOPE_PROCESS 1

// Values for pthread_attr_{get,set}inheritsched
#define PTHREAD_INHERIT_SCHED 0
#define PTHREAD_EXPLICIT_SCHED 1

// values for pthread_{get,set}canceltype().
#define PTHREAD_CANCEL_DEFERRED 0
#define PTHREAD_CANCEL_ASYNCHRONOUS 1

// values for pthread_{get,set}cancelstate().
#define PTHREAD_CANCEL_ENABLE 0
#define PTHREAD_CANCEL_DISABLE 1

// values for pthread_mutexattr_{get,set}type().
#define PTHREAD_MUTEX_DEFAULT __MLIBC_THREAD_MUTEX_DEFAULT
#define PTHREAD_MUTEX_NORMAL __MLIBC_THREAD_MUTEX_NORMAL
#define PTHREAD_MUTEX_ERRORCHECK __MLIBC_THREAD_MUTEX_ERRORCHECK
#define PTHREAD_MUTEX_RECURSIVE __MLIBC_THREAD_MUTEX_RECURSIVE

// values for pthread_mutexattr_{get,set}robust().
#define PTHREAD_MUTEX_STALLED __MLIBC_THREAD_MUTEX_STALLED
#define PTHREAD_MUTEX_ROBUST __MLIBC_THREAD_MUTEX_ROBUST

// values for pthread_mutexattr_{get,set}pshared().
#define PTHREAD_PROCESS_PRIVATE __MLIBC_THREAD_PROCESS_PRIVATE
#define PTHREAD_PROCESS_SHARED __MLIBC_THREAD_PROCESS_SHARED

// Values for pthread_mutexattr_{get,set}protocol()
#define PTHREAD_PRIO_NONE __MLIBC_THREAD_PRIO_NONE
#define PTHREAD_PRIO_INHERIT __MLIBC_THREAD_PRIO_INHERIT
#define PTHREAD_PRIO_PROTECT __MLIBC_THREAD_PRIO_PROTECT

#define PTHREAD_ONCE_INIT {0}
#define PTHREAD_COND_INITIALIZER {0}
#define PTHREAD_MUTEX_INITIALIZER {0, 0, 0, 0}
#define PTHREAD_RWLOCK_INITIALIZER {0, 0, 0}

#define PTHREAD_CANCELED ((void*) -1)

#define PTHREAD_BARRIER_SERIAL_THREAD -1

// values for pthread_key
#define PTHREAD_DESTRUCTOR_ITERATIONS 8

#define PTHREAD_INHERIT_SCHED 0
#define PTHREAD_EXPLICIT_SCHED 1

#define PTHREAD_STACK_MIN 16384

#define PTHREAD_ATTR_NO_SIGMASK_NP (-1)

// TODO: move to own file and include in sys/types.h
typedef struct __mlibc_threadattr pthread_attr_t;

typedef uintptr_t pthread_key_t;

struct __mlibc_once {
	unsigned int __mlibc_done;
};
typedef struct __mlibc_once pthread_once_t;

typedef struct __mlibc_mutexattr pthread_mutexattr_t;

typedef struct __mlibc_mutex pthread_mutex_t;

typedef struct __mlibc_condattr pthread_condattr_t;

typedef struct __mlibc_cond pthread_cond_t;

struct  __mlibc_barrierattr_struct {
	int __mlibc_pshared;
};
typedef struct __mlibc_barrierattr_struct pthread_barrierattr_t;

struct __mlibc_barrier {
	unsigned int __mlibc_waiting;
	unsigned int __mlibc_inside;
	unsigned int __mlibc_count;
	unsigned int __mlibc_seq;
	unsigned int __mlibc_flags;
};
typedef struct __mlibc_barrier pthread_barrier_t;

struct __mlibc_fair_rwlock {
	unsigned int __mlibc_m; // Mutex.
	unsigned int __mlibc_rc; // Reader count (not reference count).
	unsigned int __mlibc_flags;
};
typedef struct __mlibc_fair_rwlock pthread_rwlock_t;

struct __mlibc_rwlockattr {
	int __mlibc_pshared;
};
typedef struct __mlibc_rwlockattr pthread_rwlockattr_t;

#ifndef __MLIBC_ABI_ONLY

// ----------------------------------------------------------------------------
// pthread_attr and pthread functions.
// ----------------------------------------------------------------------------

// pthread_attr functions.
int pthread_attr_init(pthread_attr_t *);
int pthread_attr_destroy(pthread_attr_t *);

int pthread_attr_getdetachstate(const pthread_attr_t *, int *);
int pthread_attr_setdetachstate(pthread_attr_t *, int);

int pthread_attr_getstacksize(const pthread_attr_t *__restrict, size_t *__restrict);
int pthread_attr_setstacksize(pthread_attr_t *, size_t);

int pthread_attr_getstackaddr(const pthread_attr_t *, void **);
int pthread_attr_setstackaddr(pthread_attr_t *, void *);

int pthread_attr_getstack(const pthread_attr_t *, void **, size_t*);
int pthread_attr_setstack(pthread_attr_t *, void *, size_t);

int pthread_attr_getguardsize(const pthread_attr_t *__restrict, size_t *__restrict);
int pthread_attr_setguardsize(pthread_attr_t *, size_t);

int pthread_attr_getscope(const pthread_attr_t *, int*);
int pthread_attr_setscope(pthread_attr_t *, int);

int pthread_attr_getschedparam(const pthread_attr_t *__restrict, struct sched_param *__restrict);
int pthread_attr_setschedparam(pthread_attr_t *__restrict, const struct sched_param *__restrict);

int pthread_attr_getschedpolicy(const pthread_attr_t *__restrict, int *__restrict);
int pthread_attr_setschedpolicy(pthread_attr_t *__restrict, int);

int pthread_attr_getinheritsched(const pthread_attr_t *__restrict, int *__restrict);
int pthread_attr_setinheritsched(pthread_attr_t *__restrict, int);

int pthread_attr_getschedparam(const pthread_attr_t *__restrict, struct sched_param *__restrict);
int pthread_attr_setschedparam(pthread_attr_t *__restrict, const struct sched_param *__restrict);

#if __MLIBC_LINUX_OPTION
int pthread_attr_getaffinity_np(const pthread_attr_t *__restrict, size_t, cpu_set_t *__restrict);
int pthread_attr_setaffinity_np(pthread_attr_t *__restrict, size_t, const cpu_set_t *__restrict);

int pthread_attr_getsigmask_np(const pthread_attr_t *__restrict, sigset_t *__restrict);
int pthread_attr_setsigmask_np(pthread_attr_t *__restrict, const sigset_t *__restrict);

int pthread_getattr_np(pthread_t, pthread_attr_t *);

int pthread_getaffinity_np(pthread_t thread, size_t cpusetsize, cpu_set_t *cpuset);
int pthread_setaffinity_np(pthread_t thread, size_t cpusetsize, const cpu_set_t *cpuset);
#endif /* __MLIBC_LINUX_OPTION */

// pthread functions.
int pthread_create(pthread_t *__restrict, const pthread_attr_t *__restrict,
		void *(*) (void *), void *__restrict);
pthread_t pthread_self(void);
int pthread_equal(pthread_t, pthread_t);
__attribute__ ((__noreturn__)) void pthread_exit(void *);

int pthread_join(pthread_t, void **);
int pthread_detach(pthread_t);

void pthread_cleanup_push(void (*) (void *), void *);
void pthread_cleanup_pop(int);

int pthread_setname_np(pthread_t, const char *);
int pthread_getname_np(pthread_t, char *, size_t);

int pthread_attr_setstack(pthread_attr_t *, void *, size_t);
int pthread_attr_getstack(const pthread_attr_t *, void **, size_t *);

int pthread_getattr_np(pthread_t, pthread_attr_t *);

int pthread_setschedparam(pthread_t, int, const struct sched_param *);
int pthread_getschedparam(pthread_t, int *, struct sched_param *);

int pthread_setcanceltype(int, int *);
int pthread_setcancelstate(int, int *);
void pthread_testcancel(void);
int pthread_cancel(pthread_t);

int pthread_atfork(void (*) (void), void (*) (void), void (*) (void));

// ----------------------------------------------------------------------------
// pthread_key functions.
// ----------------------------------------------------------------------------

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 *);

// ----------------------------------------------------------------------------
// pthread_once functions.
// ----------------------------------------------------------------------------

int pthread_once(pthread_once_t *, void (*) (void));

// ----------------------------------------------------------------------------
// pthread_mutexattr and pthread_mutex functions.
// ----------------------------------------------------------------------------

// pthread_mutexattr functions
int pthread_mutexattr_init(pthread_mutexattr_t *);
int pthread_mutexattr_destroy(pthread_mutexattr_t *);

int pthread_mutexattr_gettype(const pthread_mutexattr_t *__restrict, int *__restrict);
int pthread_mutexattr_settype(pthread_mutexattr_t *, int);

int pthread_mutexattr_getrobust(const pthread_mutexattr_t *__restrict, int *__restrict);
int pthread_mutexattr_setrobust(pthread_mutexattr_t *, int);

int pthread_mutexattr_getpshared(const pthread_mutexattr_t *, int *);
int pthread_mutexattr_setpshared(pthread_mutexattr_t *, int);

int pthread_mutexattr_getprotocol(const pthread_mutexattr_t *__restrict, int *__restrict);
int pthread_mutexattr_setprotocol(pthread_mutexattr_t *, int);

int pthread_mutexattr_getprioceiling(const pthread_mutexattr_t *, int *);
int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *, int);

// pthread_mutex functions
int pthread_mutex_init(pthread_mutex_t *__restrict, const pthread_mutexattr_t *__restrict);
int pthread_mutex_destroy(pthread_mutex_t *);

int pthread_mutex_lock(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_unlock(pthread_mutex_t *);

int pthread_mutex_consistent(pthread_mutex_t *);

// ----------------------------------------------------------------------------
// pthread_condattr and pthread_cond functions.
// ----------------------------------------------------------------------------

int pthread_condattr_init(pthread_condattr_t *);
int pthread_condattr_destroy(pthread_condattr_t *);

int pthread_condattr_getclock(const pthread_condattr_t *__restrict, clockid_t *__restrict);
int pthread_condattr_setclock(pthread_condattr_t *, clockid_t);

int pthread_condattr_getpshared(const pthread_condattr_t *__restrict, int *__restrict);
int pthread_condattr_setpshared(pthread_condattr_t *, int);

int pthread_cond_init(pthread_cond_t *__restrict, const pthread_condattr_t *__restrict);
int pthread_cond_destroy(pthread_cond_t *);

int pthread_cond_wait(pthread_cond_t *__restrict, pthread_mutex_t *__restrict);
int pthread_cond_timedwait(pthread_cond_t *__restrict, pthread_mutex_t *__restrict,
		const struct timespec *__restrict);
int pthread_cond_signal(pthread_cond_t *);
int pthread_cond_broadcast(pthread_cond_t *);

// ----------------------------------------------------------------------------
// pthread_barrierattr and pthread_barrier functions.
// ----------------------------------------------------------------------------

int pthread_barrierattr_init(pthread_barrierattr_t *);
int pthread_barrierattr_destroy(pthread_barrierattr_t *);
int pthread_barrierattr_setpshared(pthread_barrierattr_t *, int);
int pthread_barrierattr_getpshared(const pthread_barrierattr_t *__restrict,
		int *__restrict);

int pthread_barrier_init(pthread_barrier_t *__restrict, const pthread_barrierattr_t *__restrict,
		unsigned int);
int pthread_barrier_destroy(pthread_barrier_t *);

int pthread_barrier_wait(pthread_barrier_t *);

// ----------------------------------------------------------------------------
// pthread_wrlockattr and pthread_rwlock functions.
// ----------------------------------------------------------------------------

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_rwlock_init(pthread_rwlock_t *__restrict, const pthread_rwlockattr_t *__restrict);
int pthread_rwlock_destroy(pthread_rwlock_t *);
int pthread_rwlock_trywrlock(pthread_rwlock_t *);
int pthread_rwlock_wrlock(pthread_rwlock_t *);
int pthread_rwlock_tryrdlock(pthread_rwlock_t *);
int pthread_rwlock_rdlock(pthread_rwlock_t *);
int pthread_rwlock_unlock(pthread_rwlock_t *);

int pthread_getcpuclockid(pthread_t, clockid_t *);

#endif /* !__MLIBC_ABI_ONLY */

#ifdef __cplusplus
}
#endif

#endif // _PTHREAD_H