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1 | // Time-stamp: <01/08/01 21:00:29 keuchel@w2k> |
2 | |
3 | #include "EXTERN.h" |
4 | #include "perl.h" |
5 | |
6 | #if defined(PERL_OBJECT) |
7 | #define NO_XSLOCKS |
8 | extern CPerlObj* pPerl; |
9 | #include "XSUB.h" |
10 | #endif |
11 | |
12 | #ifdef USE_DECLSPEC_THREAD |
13 | __declspec(thread) void *PL_current_context = NULL; |
14 | #endif |
15 | |
16 | void |
17 | Perl_set_context(void *t) |
18 | { |
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19 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS) |
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20 | # ifdef USE_DECLSPEC_THREAD |
21 | Perl_current_context = t; |
22 | # else |
23 | DWORD err = GetLastError(); |
24 | TlsSetValue(PL_thr_key,t); |
25 | SetLastError(err); |
26 | # endif |
27 | #endif |
28 | } |
29 | |
30 | void * |
31 | Perl_get_context(void) |
32 | { |
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33 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS) |
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34 | # ifdef USE_DECLSPEC_THREAD |
35 | return Perl_current_context; |
36 | # else |
37 | DWORD err = GetLastError(); |
38 | void *result = TlsGetValue(PL_thr_key); |
39 | SetLastError(err); |
40 | return result; |
41 | # endif |
42 | #else |
43 | return NULL; |
44 | #endif |
45 | } |
46 | |
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47 | #ifdef USE_5005THREADS |
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48 | void |
49 | Perl_init_thread_intern(struct perl_thread *athr) |
50 | { |
51 | #ifndef USE_DECLSPEC_THREAD |
52 | |
53 | /* |
54 | * Initialize port-specific per-thread data in thr->i |
55 | * as only things we have there are just static areas for |
56 | * return values we don't _need_ to do anything but |
57 | * this is good practice: |
58 | */ |
59 | memset(&athr->i,0,sizeof(athr->i)); |
60 | |
61 | #endif |
62 | } |
63 | |
64 | void |
65 | Perl_set_thread_self(struct perl_thread *thr) |
66 | { |
67 | /* Set thr->self. GetCurrentThread() retrurns a pseudo handle, need |
68 | this to convert it into a handle another thread can use. |
69 | */ |
70 | DuplicateHandle(GetCurrentProcess(), |
71 | GetCurrentThread(), |
72 | GetCurrentProcess(), |
73 | &thr->self, |
74 | 0, |
75 | FALSE, |
76 | DUPLICATE_SAME_ACCESS); |
77 | } |
78 | |
79 | int |
80 | Perl_thread_create(struct perl_thread *thr, thread_func_t *fn) |
81 | { |
82 | DWORD junk; |
83 | unsigned long th; |
84 | |
85 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
86 | "%p: create OS thread\n", thr)); |
87 | #ifdef USE_RTL_THREAD_API |
88 | /* See comment about USE_RTL_THREAD_API in win32thread.h */ |
89 | #if defined(__BORLANDC__) |
90 | th = _beginthreadNT(fn, /* start address */ |
91 | 0, /* stack size */ |
92 | (void *)thr, /* parameters */ |
93 | (void *)NULL, /* security attrib */ |
94 | 0, /* creation flags */ |
95 | (unsigned long *)&junk); /* tid */ |
96 | if (th == (unsigned long)-1) |
97 | th = 0; |
98 | #elif defined(_MSC_VER_) |
99 | th = _beginthreadex((void *)NULL, /* security attrib */ |
100 | 0, /* stack size */ |
101 | fn, /* start address */ |
102 | (void*)thr, /* parameters */ |
103 | 0, /* creation flags */ |
104 | (unsigned *)&junk); /* tid */ |
105 | #else /* compilers using CRTDLL.DLL only have _beginthread() */ |
106 | th = _beginthread(fn, /* start address */ |
107 | 0, /* stack size */ |
108 | (void*)thr); /* parameters */ |
109 | if (th == (unsigned long)-1) |
110 | th = 0; |
111 | #endif |
112 | thr->self = (HANDLE)th; |
113 | #else /* !USE_RTL_THREAD_API */ |
114 | thr->self = CreateThread(NULL, 0, fn, (void*)thr, 0, &junk); |
115 | #endif /* !USE_RTL_THREAD_API */ |
116 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
117 | "%p: OS thread = %p, id=%ld\n", thr, thr->self, junk)); |
118 | return thr->self ? 0 : -1; |
119 | } |
120 | #endif |
121 | |