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1 | #include "EXTERN.h" |
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 | |
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 |
13 | Perl_current_context = t; |
14 | # else |
15 | DWORD err = GetLastError(); |
16 | TlsSetValue(PL_thr_key,t); |
17 | SetLastError(err); |
18 | # endif |
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19 | #endif |
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20 | } |
21 | |
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22 | void * |
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 |
27 | return Perl_current_context; |
28 | # else |
29 | DWORD err = GetLastError(); |
30 | void *result = TlsGetValue(PL_thr_key); |
31 | SetLastError(err); |
32 | return result; |
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 | } |
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 |
44 | |
45 | /* |
46 | * Initialize port-specific per-thread data in thr->i |
47 | * as only things we have there are just static areas for |
48 | * return values we don't _need_ to do anything but |
49 | * this is good practice: |
50 | */ |
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51 | memset(&athr->i,0,sizeof(athr->i)); |
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52 | |
53 | #endif |
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54 | } |
55 | |
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 |
60 | this to convert it into a handle another thread can use. |
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61 | */ |
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62 | DuplicateHandle(GetCurrentProcess(), |
63 | GetCurrentThread(), |
64 | GetCurrentProcess(), |
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65 | &thr->self, |
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66 | 0, |
67 | FALSE, |
68 | DUPLICATE_SAME_ACCESS); |
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69 | } |
70 | |
71 | int |
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72 | Perl_thread_create(struct perl_thread *thr, thread_func_t *fn) |
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73 | { |
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 |
80 | /* See comment about USE_RTL_THREAD_API in win32thread.h */ |
81 | #if defined(__BORLANDC__) |
82 | th = _beginthreadNT(fn, /* start address */ |
83 | 0, /* stack size */ |
84 | (void *)thr, /* parameters */ |
85 | (void *)NULL, /* security attrib */ |
86 | 0, /* creation flags */ |
87 | (unsigned long *)&junk); /* tid */ |
88 | if (th == (unsigned long)-1) |
89 | th = 0; |
90 | #elif defined(_MSC_VER_) |
91 | th = _beginthreadex((void *)NULL, /* security attrib */ |
92 | 0, /* stack size */ |
93 | fn, /* start address */ |
94 | (void*)thr, /* parameters */ |
95 | 0, /* creation flags */ |
96 | (unsigned *)&junk); /* tid */ |
97 | #else /* compilers using CRTDLL.DLL only have _beginthread() */ |
98 | th = _beginthread(fn, /* start address */ |
99 | 0, /* stack size */ |
100 | (void*)thr); /* parameters */ |
101 | if (th == (unsigned long)-1) |
102 | th = 0; |
103 | #endif |
104 | thr->self = (HANDLE)th; |
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 | |