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/* Time-stamp: <01/08/01 21:00:29 keuchel@w2k> */
#include "EXTERN.h"
#include "perl.h"
#ifdef USE_DECLSPEC_THREAD
__declspec(thread) void *PL_current_context = NULL;
#endif
void
Perl_set_context(void *t)
{
#if defined(USE_5005THREADS) || defined(USE_ITHREADS)
# ifdef USE_DECLSPEC_THREAD
Perl_current_context = t;
# else
DWORD err = GetLastError();
TlsSetValue(PL_thr_key,t);
SetLastError(err);
# endif
#endif
}
void *
Perl_get_context(void)
{
#if defined(USE_5005THREADS) || defined(USE_ITHREADS)
# ifdef USE_DECLSPEC_THREAD
return Perl_current_context;
# else
DWORD err = GetLastError();
void *result = TlsGetValue(PL_thr_key);
SetLastError(err);
return result;
# endif
#else
return NULL;
#endif
}
#ifdef USE_5005THREADS
void
Perl_init_thread_intern(struct perl_thread *athr)
{
#ifndef USE_DECLSPEC_THREAD
/*
* Initialize port-specific per-thread data in thr->i
* as only things we have there are just static areas for
* return values we don't _need_ to do anything but
* this is good practice:
*/
memset(&athr->i,0,sizeof(athr->i));
#endif
}
void
Perl_set_thread_self(struct perl_thread *thr)
{
/* Set thr->self. GetCurrentThread() retrurns a pseudo handle, need
this to convert it into a handle another thread can use.
*/
DuplicateHandle(GetCurrentProcess(),
GetCurrentThread(),
GetCurrentProcess(),
&thr->self,
0,
FALSE,
DUPLICATE_SAME_ACCESS);
}
int
Perl_thread_create(struct perl_thread *thr, thread_func_t *fn)
{
DWORD junk;
unsigned long th;
DEBUG_S(PerlIO_printf(Perl_debug_log,
"%p: create OS thread\n", thr));
#ifdef USE_RTL_THREAD_API
/* See comment about USE_RTL_THREAD_API in win32thread.h */
#if defined(__BORLANDC__)
th = _beginthreadNT(fn, /* start address */
0, /* stack size */
(void *)thr, /* parameters */
(void *)NULL, /* security attrib */
0, /* creation flags */
(unsigned long *)&junk); /* tid */
if (th == (unsigned long)-1)
th = 0;
#elif defined(_MSC_VER_)
th = _beginthreadex((void *)NULL, /* security attrib */
0, /* stack size */
fn, /* start address */
(void*)thr, /* parameters */
0, /* creation flags */
(unsigned *)&junk); /* tid */
#else /* compilers using CRTDLL.DLL only have _beginthread() */
th = _beginthread(fn, /* start address */
0, /* stack size */
(void*)thr); /* parameters */
if (th == (unsigned long)-1)
th = 0;
#endif
thr->self = (HANDLE)th;
#else /* !USE_RTL_THREAD_API */
thr->self = CreateThread(NULL, 0, fn, (void*)thr, 0, &junk);
#endif /* !USE_RTL_THREAD_API */
DEBUG_S(PerlIO_printf(Perl_debug_log,
"%p: OS thread = %p, id=%ld\n", thr, thr->self, junk));
return thr->self ? 0 : -1;
}
#endif
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