| 1 | #include "EXTERN.h"
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| 2 | #include "perl.h"
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| 3 |
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| 4 | #ifdef USE_DECLSPEC_THREAD
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| 5 | __declspec(thread) void *PL_current_context = NULL;
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| 6 | #endif
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| 7 |
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| 8 | void
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| 9 | Perl_set_context(void *t)
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| 10 | {
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| 11 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS)
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| 12 | # ifdef USE_DECLSPEC_THREAD
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| 13 | Perl_current_context = t;
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| 14 | # else
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| 15 | DWORD err = GetLastError();
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| 16 | TlsSetValue(PL_thr_key,t);
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| 17 | SetLastError(err);
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| 18 | # endif
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| 19 | #endif
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| 20 | }
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| 21 |
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| 22 | void *
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| 23 | Perl_get_context(void)
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| 24 | {
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| 25 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS)
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| 26 | # ifdef USE_DECLSPEC_THREAD
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| 27 | return Perl_current_context;
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| 28 | # else
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| 29 | DWORD err = GetLastError();
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| 30 | void *result = TlsGetValue(PL_thr_key);
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| 31 | SetLastError(err);
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| 32 | return result;
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| 33 | # endif
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| 34 | #else
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| 35 | return NULL;
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| 36 | #endif
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| 37 | }
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| 38 |
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| 39 | #ifdef USE_5005THREADS
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| 40 | void
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| 41 | Perl_init_thread_intern(struct perl_thread *athr)
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| 42 | {
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| 43 | #ifndef USE_DECLSPEC_THREAD
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| 44 |
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| 45 | /*
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| 46 | * Initialize port-specific per-thread data in thr->i
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| 47 | * as only things we have there are just static areas for
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| 48 | * return values we don't _need_ to do anything but
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| 49 | * this is good practice:
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| 50 | */
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| 51 | memset(&athr->i,0,sizeof(athr->i));
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| 52 |
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| 53 | #endif
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| 54 | }
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| 55 |
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| 56 | void
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| 57 | Perl_set_thread_self(struct perl_thread *thr)
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| 58 | {
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| 59 | /* Set thr->self. GetCurrentThread() retrurns a pseudo handle, need
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| 60 | this to convert it into a handle another thread can use.
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| 61 | */
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| 62 | DuplicateHandle(GetCurrentProcess(),
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| 63 | GetCurrentThread(),
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| 64 | GetCurrentProcess(),
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| 65 | &thr->self,
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| 66 | 0,
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| 67 | FALSE,
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| 68 | DUPLICATE_SAME_ACCESS);
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| 69 | }
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| 70 |
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| 71 | int
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| 72 | Perl_thread_create(struct perl_thread *thr, thread_func_t *fn)
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| 73 | {
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| 74 | DWORD junk;
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| 75 | unsigned long th;
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| 76 |
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| 77 | DEBUG_S(PerlIO_printf(Perl_debug_log,
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| 78 | "%p: create OS thread\n", thr));
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| 79 | #ifdef USE_RTL_THREAD_API
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| 80 | /* See comment about USE_RTL_THREAD_API in win32thread.h */
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| 81 | #if defined(__BORLANDC__)
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| 82 | th = _beginthreadNT(fn, /* start address */
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| 83 | 0, /* stack size */
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| 84 | (void *)thr, /* parameters */
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| 85 | (void *)NULL, /* security attrib */
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| 86 | 0, /* creation flags */
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| 87 | (unsigned long *)&junk); /* tid */
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| 88 | if (th == (unsigned long)-1)
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| 89 | th = 0;
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| 90 | #elif defined(_MSC_VER_)
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| 91 | th = _beginthreadex((void *)NULL, /* security attrib */
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| 92 | 0, /* stack size */
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| 93 | fn, /* start address */
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| 94 | (void*)thr, /* parameters */
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| 95 | 0, /* creation flags */
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| 96 | (unsigned *)&junk); /* tid */
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| 97 | #else /* compilers using CRTDLL.DLL only have _beginthread() */
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| 98 | th = _beginthread(fn, /* start address */
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| 99 | 0, /* stack size */
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| 100 | (void*)thr); /* parameters */
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| 101 | if (th == (unsigned long)-1)
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| 102 | th = 0;
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| 103 | #endif
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| 104 | thr->self = (HANDLE)th;
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| 105 | #else /* !USE_RTL_THREAD_API */
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| 106 | thr->self = CreateThread(NULL, 0, fn, (void*)thr, 0, &junk);
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| 107 | #endif /* !USE_RTL_THREAD_API */
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| 108 | DEBUG_S(PerlIO_printf(Perl_debug_log,
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| 109 | "%p: OS thread = %p, id=%ld\n", thr, thr->self, junk));
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| 110 | return thr->self ? 0 : -1;
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| 111 | }
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| 112 | #endif
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| 113 |
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