golgotha/i4/threads/win32/threads.cc

/********************************************************************** <BR>
  This file is part of Crack dot Com's free source code release of
  Golgotha. <a href="http://www.crack.com/golgotha_release"> <BR> for
  information about compiling & licensing issues visit this URL</a> 
  <PRE> If that doesn't help, contact Jonathan Clark at 
  golgotha_source@usa.net (Subject should have "GOLG" in it) 
***********************************************************************/

#include "threads/threads.hh"
#include "error/error.hh"

#include <windows.h>
#include <process.h>

static w32 i4_thread_count=0;
static i4_critical_section_class i4_thread_lock;
int i4_main_thread_id;

void i4_wait_threads()  // waits for all threads to terminate (don't call from a thread!)
{
  while (i4_thread_count!=0)
    i4_thread_yield();
}

static i4_critical_section_class i4_thread_start_lock;
static i4_thread_func_type i4_thread_to_start;

void i4_thread_starter(void *arg)
{
  i4_thread_func_type start=i4_thread_to_start;
  i4_thread_start_lock.unlock();
  start(arg);

  i4_thread_lock.lock();
  i4_thread_count--;
  i4_thread_lock.unlock();

  _endthread();
}

void i4_add_thread(i4_thread_func_type fun, w32 stack_size, void *arg_list)

{
  i4_thread_start_lock.lock();
  i4_thread_to_start=fun;
 
  i4_thread_lock.lock();
  i4_thread_count++;
  i4_thread_lock.unlock();

  _beginthread(i4_thread_starter, stack_size, arg_list);
}

void i4_thread_yield()
{
  Sleep(0);
}


int i4_get_thread_id()
{
  return GetCurrentThreadId();
}