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