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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) struct perl_thread *Perl_current_thread = NULL; |
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12 | #endif |
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13 | |
14 | void |
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15 | Perl_setTHR(struct perl_thread *t) |
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16 | { |
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17 | #ifdef USE_THREADS |
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18 | #ifdef USE_DECLSPEC_THREAD |
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19 | Perl_current_thread = t; |
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20 | #else |
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21 | TlsSetValue(PL_thr_key,t); |
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22 | #endif |
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23 | #endif |
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24 | } |
25 | |
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26 | struct perl_thread * |
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27 | Perl_getTHR(void) |
28 | { |
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29 | #ifdef USE_THREADS |
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30 | #ifdef USE_DECLSPEC_THREAD |
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31 | return Perl_current_thread; |
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32 | #else |
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33 | return (struct perl_thread *) TlsGetValue(PL_thr_key); |
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34 | #endif |
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35 | #else |
36 | return NULL; |
37 | #endif |
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38 | } |
39 | |
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40 | void |
41 | Perl_alloc_thread_key(void) |
42 | { |
43 | #ifdef USE_THREADS |
44 | static int key_allocated = 0; |
45 | if (!key_allocated) { |
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46 | if ((PL_thr_key = TlsAlloc()) == TLS_OUT_OF_INDEXES) |
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47 | Perl_croak_nocontext("panic: TlsAlloc"); |
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48 | key_allocated = 1; |
49 | } |
50 | #endif |
51 | } |
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52 | |
53 | void |
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54 | Perl_init_thread_intern(struct perl_thread *athr) |
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55 | { |
56 | #ifdef USE_THREADS |
57 | #ifndef USE_DECLSPEC_THREAD |
58 | |
59 | /* |
60 | * Initialize port-specific per-thread data in thr->i |
61 | * as only things we have there are just static areas for |
62 | * return values we don't _need_ to do anything but |
63 | * this is good practice: |
64 | */ |
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65 | memset(&athr->i,0,sizeof(athr->i)); |
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66 | |
67 | #endif |
68 | #endif |
69 | } |
70 | |
71 | void |
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72 | Perl_set_thread_self(struct perl_thread *thr) |
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73 | { |
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74 | #ifdef USE_THREADS |
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75 | /* Set thr->self. GetCurrentThread() retrurns a pseudo handle, need |
76 | this to convert it into a handle another thread can use. |
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77 | */ |
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78 | DuplicateHandle(GetCurrentProcess(), |
79 | GetCurrentThread(), |
80 | GetCurrentProcess(), |
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81 | &thr->self, |
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82 | 0, |
83 | FALSE, |
84 | DUPLICATE_SAME_ACCESS); |
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85 | #endif |
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86 | } |
87 | |
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88 | #ifdef USE_THREADS |
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89 | int |
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90 | Perl_thread_create(struct perl_thread *thr, thread_func_t *fn) |
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91 | { |
92 | DWORD junk; |
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93 | unsigned long th; |
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94 | |
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95 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
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96 | "%p: create OS thread\n", thr)); |
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97 | #ifdef USE_RTL_THREAD_API |
98 | /* See comment about USE_RTL_THREAD_API in win32thread.h */ |
99 | #if defined(__BORLANDC__) |
100 | th = _beginthreadNT(fn, /* start address */ |
101 | 0, /* stack size */ |
102 | (void *)thr, /* parameters */ |
103 | (void *)NULL, /* security attrib */ |
104 | 0, /* creation flags */ |
105 | (unsigned long *)&junk); /* tid */ |
106 | if (th == (unsigned long)-1) |
107 | th = 0; |
108 | #elif defined(_MSC_VER_) |
109 | th = _beginthreadex((void *)NULL, /* security attrib */ |
110 | 0, /* stack size */ |
111 | fn, /* start address */ |
112 | (void*)thr, /* parameters */ |
113 | 0, /* creation flags */ |
114 | (unsigned *)&junk); /* tid */ |
115 | #else /* compilers using CRTDLL.DLL only have _beginthread() */ |
116 | th = _beginthread(fn, /* start address */ |
117 | 0, /* stack size */ |
118 | (void*)thr); /* parameters */ |
119 | if (th == (unsigned long)-1) |
120 | th = 0; |
121 | #endif |
122 | thr->self = (HANDLE)th; |
123 | #else /* !USE_RTL_THREAD_API */ |
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124 | thr->self = CreateThread(NULL, 0, fn, (void*)thr, 0, &junk); |
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125 | #endif /* !USE_RTL_THREAD_API */ |
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126 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
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127 | "%p: OS thread = %p, id=%ld\n", thr, thr->self, junk)); |
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128 | return thr->self ? 0 : -1; |
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129 | } |
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130 | #endif |
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131 | |