{
    This file is part of the Free Pascal run time library.
    Copyright (c) 1999-2000 by Peter Vreman
    member of the Free Pascal development team.

    See the file COPYING.FPC, included in this distribution,
    for details about the copyright.

    This file contains a pthread.h headerconversion,
    and should contain an interface to the threading library to be
    used by systhrd, preferably in a somewhat compatible notation
    (compared to the other OSes).

    As a start, I simply used libc_r

    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.

 **********************************************************************}

  const
    PTHREAD_EXPLICIT_SCHED       = 0;
    PTHREAD_INHERIT_SCHED        = 1;
    PTHREAD_CREATE_DETACHED      = $40;
    PTHREAD_SCOPE_PROCESS        = 0;

    _PTHREAD_MUTEX_NORMAL        = 0;
    _PTHREAD_MUTEX_ERRORCHECK    = 2;
    _PTHREAD_MUTEX_RECURSIVE     = 4;
    
  type
    sched_param = record
      __sched_priority: cint;
    end;

    sem_t = record
      sem_count : uint32_t;
      sem_type : uint16_t;
      sem_magic : uint16_t;
      sem_pad1 : array[0..2] of upad64_t;
      sem_pad2 : array[0..1] of upad64_t;
    end;

    psem_t      = ^sem_t;
    TSemaphore  = sem_t;
    PSemaphore  = ^TSemaphore;


    ppthread_t           = ^pthread_t;
    ppthread_key_t       = ^pthread_key_t;
    ppthread_mutex_t     = ^pthread_mutex_t;
    ppthread_attr_t      = ^pthread_attr_t;
    __destr_func_t       = procedure (p :pointer);cdecl;
    __startroutine_t     = function (p :pointer):pointer;cdecl;
    ppthread_mutexattr_t = ^pthread_mutexattr_t;
    ppthread_cond_t      = ^pthread_cond_t;
    ppthread_condattr_t  = ^pthread_condattr_t;

    pthread_spinlock_t = pthread_mutex_t;

    _once = record
       __pthread_once_pad : array[0..3] of upad64_t;
    end;

    pthread_once_t = _once;

    pthread_barrier_t = record
       __pthread_barrier_count : uint32_t;
       __pthread_barrier_current : uint32_t;
       __pthread_barrier_cycle : upad64_t;
       __pthread_barrier_reserved : upad64_t;
       __pthread_barrier_lock : pthread_mutex_t;
       __pthread_barrier_cond : pthread_cond_t;
    end;

    pthread_barrierattr_t = record
       __pthread_barrierattrp : pointer;
    end;

function  pthread_getspecific      (t : pthread_key_t):pointer; cdecl; external 'c';
function  pthread_setspecific      (t : pthread_key_t;p:pointer):cint; cdecl; external 'c';
function  pthread_key_create       (p : ppthread_key_t;f: __destr_func_t):cint; cdecl;external 'c';
function  pthread_attr_init           (p : ppthread_key_t):cint; cdecl; external 'c';
function  pthread_attr_setinheritsched(p : ppthread_attr_t;i:cint):cint; cdecl; external 'c';
function  pthread_attr_setscope      (p : ppthread_attr_t;i:cint):cint;cdecl;external 'c';
function  pthread_attr_setdetachstate (p : ppthread_attr_t;i:cint):cint;cdecl;external 'c';
function  pthread_attr_setstacksize(p: ppthread_attr_t; stacksize: size_t):cint;cdecl;external 'c';
function  pthread_attr_destroy       (p : ppthread_attr_t):cint;cdecl;external 'c';
function  pthread_create ( p: ppthread_t;attr : ppthread_attr_t;f:__startroutine_t;arg:pointer):cint;cdecl;external 'c';
procedure pthread_exit  ( p: pointer); cdecl;external 'c';
function  pthread_self:pthread_t; cdecl;external 'c';
function  pthread_mutex_init (p:ppthread_mutex_t;o:ppthread_mutexattr_t):cint; cdecl;external 'c';
function  pthread_mutex_destroy (p:ppthread_mutex_t):cint; cdecl;external 'c';
function  pthread_mutex_lock    (p:ppthread_mutex_t):cint; cdecl;external 'c';
function  pthread_mutex_trylock (p:ppthread_mutex_t):cint; cdecl;external 'c';
function  pthread_mutex_unlock  (p:ppthread_mutex_t):cint; cdecl;external 'c';
function  pthread_cancel(_para1:pthread_t):cint;cdecl;external 'c';
function  pthread_detach(_para1:pthread_t):cint;cdecl;external 'c';
function  pthread_join(_para1:pthread_t; _para2:Ppointer):cint;cdecl;external 'c';
function  pthread_cond_destroy(_para1:Ppthread_cond_t):cint;cdecl;external 'c' name 'pthread_cond_destroy';
function  pthread_cond_init(_para1:Ppthread_cond_t;_para2:Ppthread_condattr_t):cint;cdecl;external  'c' name 'pthread_cond_init';
function  pthread_cond_signal(_para1:Ppthread_cond_t):cint;cdecl;external 'c' name 'pthread_cond_signal';
function  pthread_cond_broadcast(_para1:Ppthread_cond_t):cint;cdecl;external 'c' name 'pthread_cond_broadcast';
function  pthread_cond_wait(_para1:Ppthread_cond_t;_para2:Ppthread_mutex_t):cint;cdecl;external 'c' name 'pthread_cond_wait';
function pthread_kill(__thread:pthread_t; __signo:cint):cint;cdecl;external 'c';
function pthread_sigmask(how: cint; nset: psigset; oset: psigset): cint; cdecl; external 'c';

function sem_init(__sem:Psem_t; __pshared:cint;__value:cuint):cint;cdecl; external 'c' name 'sem_init';
function sem_destroy(__sem:Psem_t):cint;cdecl;external 'c' name 'sem_destroy';
function sem_close(__sem:Psem_t):cint;cdecl;external 'c'  name 'sem_close';
function sem_unlink(__name:Pchar):cint;cdecl;external 'c' name 'sem_unlink';
function sem_wait(__sem:Psem_t):cint;cdecl;external 'c'  name 'sem_wait';
function sem_trywait(__sem:Psem_t):cint;cdecl;external 'c'  name 'sem_trywait';
function sem_post(__sem:Psem_t):cint;cdecl;external 'c'  name 'sem_post';
function sem_getvalue(__sem:Psem_t; __sval:Pcint):cint;cdecl;external 'c'  name 'sem_getvalue';

function pthread_mutexattr_init(_para1:Ppthread_mutexattr_t):cint;cdecl;external 'c' name 'pthread_mutexattr_init';
function pthread_mutexattr_destroy(_para1:Ppthread_mutexattr_t):cint;cdecl;external 'c' name 'pthread_mutexattr_destroy';
function pthread_mutexattr_gettype(_para1:Ppthread_mutexattr_t; _para2:Pcint):cint;cdecl;external 'c' name 'pthread_mutexattr_gettype';
function pthread_mutexattr_settype(_para1:Ppthread_mutexattr_t; _para2:cint):cint;cdecl;external 'c' name 'pthread_mutexattr_settype';
function pthread_cond_timedwait(__cond:ppthread_cond_t; __mutex:ppthread_mutex_t; __abstime:ptimespec):cint; cdecl;external 'c' name 'pthread_cond_timedwait';

