Minor tweaks to add a thread_intern struct that should ultimately
[p5sagit/p5-mst-13.2.git] / win32 / win32thread.c
1 #include "EXTERN.h"
2 #include "perl.h"
3
4 void
5 Perl_alloc_thread_key(void)
6 {
7 #ifdef USE_THREADS
8     static int key_allocated = 0;
9     if (!key_allocated) {
10         if ((thr_key = TlsAlloc()) == TLS_OUT_OF_INDEXES)
11             croak("panic: TlsAlloc");
12         key_allocated = 1;
13     }
14 #endif
15 }
16
17 void
18 init_thread_intern(struct thread *thr)
19 {
20 #ifdef USE_THREADS
21     /* Set thr->self.  GetCurrentThread() retrurns a pseudo handle, need
22        this to convert it into a handle another thread can use.
23      */
24     DuplicateHandle(GetCurrentProcess(),
25                     GetCurrentThread(),
26                     GetCurrentProcess(),
27                     &thr->self,
28                     0,
29                     FALSE,
30                     DUPLICATE_SAME_ACCESS);
31     /* XXX init thr->i here */
32 #endif
33 }
34
35 #ifdef USE_THREADS
36 int
37 Perl_thread_create(struct thread *thr, thread_func_t *fn)
38 {
39     DWORD junk;
40
41     MUTEX_LOCK(&thr->mutex);
42     DEBUG_L(PerlIO_printf(PerlIO_stderr(),
43                           "%p: create OS thread\n", thr));
44     thr->self = CreateThread(NULL, 0, fn, (void*)thr, 0, &junk);
45     DEBUG_L(PerlIO_printf(PerlIO_stderr(),
46                           "%p: OS thread = %p, id=%ld\n", thr, thr->self, junk));
47     MUTEX_UNLOCK(&thr->mutex);
48     return thr->self ? 0 : -1;
49 }
50 #endif