posix/lib/psxdll/pthread/exit.c

   1 /* $Id: exit.c,v 1.2 2002/02/20 09:17:57 hyperion Exp $
   2  */
   3 /*
   4  * COPYRIGHT:   See COPYING in the top level directory
   5  * PROJECT:     ReactOS POSIX+ Subsystem
   6  * FILE:        subsys/psx/lib/psxdll/pthread/exit.c
   7  * PURPOSE:     Thread termination
   8  * PROGRAMMER:  KJK::Hyperion <noog@libero.it>
   9  * UPDATE HISTORY:
  10  *              19/12/2001: Created
  11  */
  12
  13 #include <ddk/ntddk.h>
  14 #include <ntdll/ldr.h>
  15 #include <errno.h>
  16 #include <stdlib.h>
  17 #include <pthread.h>
  18 #include <psx/debug.h>
  19
  20 void pthread_exit(void *value_ptr)
  21 {
  22  NTSTATUS nErrCode;
  23  BOOLEAN fLastThread;
  24
  25  /* terminate process if this is the last thread of the current process */
  26  nErrCode = NtQueryInformationThread
  27  (
  28   NtCurrentThread(),
  29   ThreadAmILastThread,
  30   &fLastThread,
  31   sizeof(BOOLEAN),
  32   NULL
  33  );
  34
  35  if(NT_SUCCESS(nErrCode))
  36  {
  37   if(fLastThread)
  38   {
  39    INFO("this thread is the last in the current process - about to call exit(0)");
  40    exit(0);
  41   }
  42  }
  43  else
  44  {
  45   WARN
  46   (
  47    "NtQueryInformationThread(ThreadAmILastThread) failed with status %#x. \
  48 Can't determine if the current thread is the last in the process. The process \
  49 could hang",
  50    nErrCode
  51   );
  52
  53  }
  54
  55  TODO("Notify psxss of thread termination");
  56
  57  LdrShutdownThread(); /* detach DLLs */
  58
  59  /* kill this thread */
  60
  61  WARNIF(
  62   sizeof(ULONG) < sizeof(typeof(value_ptr)),
  63   "\
  64 the value returned from the current thread will be truncated (pointers shorter \
  65 than long integers on this architecture?) - expect trouble"
  66  );
  67
  68  INFO("bye bye. Current thread about to die");
  69
  70  NtTerminateThread(NtCurrentThread(), (ULONG)value_ptr);
  71
  72  /* "The pthread_exit() function cannot return to its caller." */
  73  NtDelayExecution(FALSE, NULL);
  74
  75 }
  76
  77 /* EOF */
  78