xref: /openbsd-src/gnu/usr.bin/perl/win32/perllib.c (revision 850e275390052b330d93020bf619a739a3c277ac)
1 /*
2  * "The Road goes ever on and on, down from the door where it began."
3  */
4 #define PERLIO_NOT_STDIO 0
5 #include "EXTERN.h"
6 #include "perl.h"
7 
8 #include "XSUB.h"
9 
10 #ifdef PERL_IMPLICIT_SYS
11 #include "win32iop.h"
12 #include <fcntl.h>
13 #endif /* PERL_IMPLICIT_SYS */
14 
15 
16 /* Register any extra external extensions */
17 char *staticlinkmodules[] = {
18     "DynaLoader",
19     /* other similar records will be included from "perllibst.h" */
20 #define STATIC1
21 #include "perllibst.h"
22     NULL,
23 };
24 
25 EXTERN_C void boot_DynaLoader (pTHX_ CV* cv);
26 /* other similar records will be included from "perllibst.h" */
27 #define STATIC2
28 #include "perllibst.h"
29 
30 static void
31 xs_init(pTHX)
32 {
33     char *file = __FILE__;
34     dXSUB_SYS;
35     newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
36     /* other similar records will be included from "perllibst.h" */
37 #define STATIC3
38 #include "perllibst.h"
39 }
40 
41 #ifdef PERL_IMPLICIT_SYS
42 
43 #include "perlhost.h"
44 
45 void
46 win32_checkTLS(PerlInterpreter *host_perl)
47 {
48     dTHX;
49     if (host_perl != my_perl) {
50 	int *nowhere = NULL;
51         *nowhere = 0;
52 	abort();
53     }
54 }
55 
56 EXTERN_C void
57 perl_get_host_info(struct IPerlMemInfo* perlMemInfo,
58 		   struct IPerlMemInfo* perlMemSharedInfo,
59 		   struct IPerlMemInfo* perlMemParseInfo,
60 		   struct IPerlEnvInfo* perlEnvInfo,
61 		   struct IPerlStdIOInfo* perlStdIOInfo,
62 		   struct IPerlLIOInfo* perlLIOInfo,
63 		   struct IPerlDirInfo* perlDirInfo,
64 		   struct IPerlSockInfo* perlSockInfo,
65 		   struct IPerlProcInfo* perlProcInfo)
66 {
67     if (perlMemInfo) {
68 	Copy(&perlMem, &perlMemInfo->perlMemList, perlMemInfo->nCount, void*);
69 	perlMemInfo->nCount = (sizeof(struct IPerlMem)/sizeof(void*));
70     }
71     if (perlMemSharedInfo) {
72 	Copy(&perlMem, &perlMemSharedInfo->perlMemList, perlMemSharedInfo->nCount, void*);
73 	perlMemSharedInfo->nCount = (sizeof(struct IPerlMem)/sizeof(void*));
74     }
75     if (perlMemParseInfo) {
76 	Copy(&perlMem, &perlMemParseInfo->perlMemList, perlMemParseInfo->nCount, void*);
77 	perlMemParseInfo->nCount = (sizeof(struct IPerlMem)/sizeof(void*));
78     }
79     if (perlEnvInfo) {
80 	Copy(&perlEnv, &perlEnvInfo->perlEnvList, perlEnvInfo->nCount, void*);
81 	perlEnvInfo->nCount = (sizeof(struct IPerlEnv)/sizeof(void*));
82     }
83     if (perlStdIOInfo) {
84 	Copy(&perlStdIO, &perlStdIOInfo->perlStdIOList, perlStdIOInfo->nCount, void*);
85 	perlStdIOInfo->nCount = (sizeof(struct IPerlStdIO)/sizeof(void*));
86     }
87     if (perlLIOInfo) {
88 	Copy(&perlLIO, &perlLIOInfo->perlLIOList, perlLIOInfo->nCount, void*);
89 	perlLIOInfo->nCount = (sizeof(struct IPerlLIO)/sizeof(void*));
90     }
91     if (perlDirInfo) {
92 	Copy(&perlDir, &perlDirInfo->perlDirList, perlDirInfo->nCount, void*);
93 	perlDirInfo->nCount = (sizeof(struct IPerlDir)/sizeof(void*));
94     }
95     if (perlSockInfo) {
96 	Copy(&perlSock, &perlSockInfo->perlSockList, perlSockInfo->nCount, void*);
97 	perlSockInfo->nCount = (sizeof(struct IPerlSock)/sizeof(void*));
98     }
99     if (perlProcInfo) {
100 	Copy(&perlProc, &perlProcInfo->perlProcList, perlProcInfo->nCount, void*);
101 	perlProcInfo->nCount = (sizeof(struct IPerlProc)/sizeof(void*));
102     }
103 }
104 
105 EXTERN_C PerlInterpreter*
106 perl_alloc_override(struct IPerlMem** ppMem, struct IPerlMem** ppMemShared,
107 		 struct IPerlMem** ppMemParse, struct IPerlEnv** ppEnv,
108 		 struct IPerlStdIO** ppStdIO, struct IPerlLIO** ppLIO,
109 		 struct IPerlDir** ppDir, struct IPerlSock** ppSock,
110 		 struct IPerlProc** ppProc)
111 {
112     PerlInterpreter *my_perl = NULL;
113     CPerlHost* pHost = new CPerlHost(ppMem, ppMemShared, ppMemParse, ppEnv,
114 				     ppStdIO, ppLIO, ppDir, ppSock, ppProc);
115 
116     if (pHost) {
117 	my_perl = perl_alloc_using(pHost->m_pHostperlMem,
118 				   pHost->m_pHostperlMemShared,
119 				   pHost->m_pHostperlMemParse,
120 				   pHost->m_pHostperlEnv,
121 				   pHost->m_pHostperlStdIO,
122 				   pHost->m_pHostperlLIO,
123 				   pHost->m_pHostperlDir,
124 				   pHost->m_pHostperlSock,
125 				   pHost->m_pHostperlProc);
126 	if (my_perl) {
127 	    w32_internal_host = pHost;
128 	    pHost->host_perl  = my_perl;
129 	}
130     }
131     return my_perl;
132 }
133 
134 EXTERN_C PerlInterpreter*
135 perl_alloc(void)
136 {
137     PerlInterpreter* my_perl = NULL;
138     CPerlHost* pHost = new CPerlHost();
139     if (pHost) {
140 	my_perl = perl_alloc_using(pHost->m_pHostperlMem,
141 				   pHost->m_pHostperlMemShared,
142 				   pHost->m_pHostperlMemParse,
143 				   pHost->m_pHostperlEnv,
144 				   pHost->m_pHostperlStdIO,
145 				   pHost->m_pHostperlLIO,
146 				   pHost->m_pHostperlDir,
147 				   pHost->m_pHostperlSock,
148 				   pHost->m_pHostperlProc);
149 	if (my_perl) {
150 	    w32_internal_host = pHost;
151             pHost->host_perl  = my_perl;
152 	}
153     }
154     return my_perl;
155 }
156 
157 EXTERN_C void
158 win32_delete_internal_host(void *h)
159 {
160     CPerlHost *host = (CPerlHost*)h;
161     delete host;
162 }
163 
164 #endif /* PERL_IMPLICIT_SYS */
165 
166 EXTERN_C HANDLE w32_perldll_handle;
167 
168 EXTERN_C DllExport int
169 RunPerl(int argc, char **argv, char **env)
170 {
171     int exitstatus;
172     PerlInterpreter *my_perl, *new_perl = NULL;
173 
174 #ifndef __BORLANDC__
175     /* XXX this _may_ be a problem on some compilers (e.g. Borland) that
176      * want to free() argv after main() returns.  As luck would have it,
177      * Borland's CRT does the right thing to argv[0] already. */
178     char szModuleName[MAX_PATH];
179 
180     GetModuleFileName(NULL, szModuleName, sizeof(szModuleName));
181     (void)win32_longpath(szModuleName);
182     argv[0] = szModuleName;
183 #endif
184 
185 #ifdef PERL_GLOBAL_STRUCT
186 #define PERLVAR(var,type) /**/
187 #define PERLVARA(var,type) /**/
188 #define PERLVARI(var,type,init) PL_Vars.var = init;
189 #define PERLVARIC(var,type,init) PL_Vars.var = init;
190 #include "perlvars.h"
191 #undef PERLVAR
192 #undef PERLVARA
193 #undef PERLVARI
194 #undef PERLVARIC
195 #endif
196 
197     PERL_SYS_INIT(&argc,&argv);
198 
199     if (!(my_perl = perl_alloc()))
200 	return (1);
201     perl_construct(my_perl);
202     PL_perl_destruct_level = 0;
203 
204     exitstatus = perl_parse(my_perl, xs_init, argc, argv, env);
205     if (!exitstatus) {
206 #if defined(TOP_CLONE) && defined(USE_ITHREADS)		/* XXXXXX testing */
207 	new_perl = perl_clone(my_perl, 1);
208 	exitstatus = perl_run(new_perl);
209 	PERL_SET_THX(my_perl);
210 #else
211 	exitstatus = perl_run(my_perl);
212 #endif
213     }
214 
215     perl_destruct(my_perl);
216     perl_free(my_perl);
217 #ifdef USE_ITHREADS
218     if (new_perl) {
219 	PERL_SET_THX(new_perl);
220 	perl_destruct(new_perl);
221 	perl_free(new_perl);
222     }
223 #endif
224 
225     PERL_SYS_TERM();
226 
227     return (exitstatus);
228 }
229 
230 EXTERN_C void
231 set_w32_module_name(void);
232 
233 EXTERN_C void
234 EndSockets(void);
235 
236 
237 #ifdef __MINGW32__
238 EXTERN_C		/* GCC in C++ mode mangles the name, otherwise */
239 #endif
240 BOOL APIENTRY
241 DllMain(HANDLE hModule,		/* DLL module handle */
242 	DWORD fdwReason,	/* reason called */
243 	LPVOID lpvReserved)	/* reserved */
244 {
245     switch (fdwReason) {
246 	/* The DLL is attaching to a process due to process
247 	 * initialization or a call to LoadLibrary.
248 	 */
249     case DLL_PROCESS_ATTACH:
250 /* #define DEFAULT_BINMODE */
251 #ifdef DEFAULT_BINMODE
252 	setmode( fileno( stdin  ), O_BINARY );
253 	setmode( fileno( stdout ), O_BINARY );
254 	setmode( fileno( stderr ), O_BINARY );
255 	_fmode = O_BINARY;
256 #endif
257 	DisableThreadLibraryCalls((HMODULE)hModule);
258 	w32_perldll_handle = hModule;
259 	set_w32_module_name();
260 	break;
261 
262 	/* The DLL is detaching from a process due to
263 	 * process termination or call to FreeLibrary.
264 	 */
265     case DLL_PROCESS_DETACH:
266         /* As long as we use TerminateProcess()/TerminateThread() etc. for mimicing kill()
267            anything here had better be harmless if:
268             A. Not called at all.
269             B. Called after memory allocation for Heap has been forcibly removed by OS.
270             PerlIO_cleanup() was done here but fails (B).
271          */
272 	EndSockets();
273 #if defined(USE_5005THREADS) || defined(USE_ITHREADS)
274 	if (PL_curinterp)
275 	    FREE_THREAD_KEY;
276 #endif
277 	break;
278 
279 	/* The attached process creates a new thread. */
280     case DLL_THREAD_ATTACH:
281 	break;
282 
283 	/* The thread of the attached process terminates. */
284     case DLL_THREAD_DETACH:
285 	break;
286 
287     default:
288 	break;
289     }
290     return TRUE;
291 }
292 
293 #if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
294 EXTERN_C PerlInterpreter *
295 perl_clone_host(PerlInterpreter* proto_perl, UV flags) {
296     dTHX;
297     CPerlHost *h;
298     h = new CPerlHost(*(CPerlHost*)PL_sys_intern.internal_host);
299     proto_perl = perl_clone_using(proto_perl, flags,
300                         h->m_pHostperlMem,
301                         h->m_pHostperlMemShared,
302                         h->m_pHostperlMemParse,
303                         h->m_pHostperlEnv,
304                         h->m_pHostperlStdIO,
305                         h->m_pHostperlLIO,
306                         h->m_pHostperlDir,
307                         h->m_pHostperlSock,
308                         h->m_pHostperlProc
309     );
310     proto_perl->Isys_intern.internal_host = h;
311     h->host_perl  = proto_perl;
312     return proto_perl;
313 
314 }
315 #endif
316