xref: /openbsd-src/gnu/usr.bin/perl/win32/perllib.c (revision 897fc685943471cf985a0fe38ba076ea6fe74fa5)
1 /*
2  *      The Road goes ever on and on
3  *          Down from the door where it began.
4  *
5  *     [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"]
6  *     [Frodo on p.73 of _The Lord of the Rings_, I/iii: "Three Is Company"]
7  */
8 #define PERLIO_NOT_STDIO 0
9 #include "EXTERN.h"
10 #include "perl.h"
11 
12 #include "XSUB.h"
13 
14 #ifdef PERL_IMPLICIT_SYS
15 #include "win32iop.h"
16 #include <fcntl.h>
17 #endif /* PERL_IMPLICIT_SYS */
18 
19 
20 /* Register any extra external extensions */
21 const char * const staticlinkmodules[] = {
22     "DynaLoader",
23     /* other similar records will be included from "perllibst.h" */
24 #define STATIC1
25 #include "perllibst.h"
26     NULL,
27 };
28 
29 EXTERN_C void boot_DynaLoader (pTHX_ CV* cv);
30 /* other similar records will be included from "perllibst.h" */
31 #define STATIC2
32 #include "perllibst.h"
33 
34 static void
35 xs_init(pTHX)
36 {
37     char *file = __FILE__;
38     dXSUB_SYS;
39     newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
40     /* other similar records will be included from "perllibst.h" */
41 #define STATIC3
42 #include "perllibst.h"
43 }
44 
45 #ifdef PERL_IMPLICIT_SYS
46 
47 /* WINCE: include replaced by:
48 extern "C" void win32_checkTLS(PerlInterpreter *host_perl);
49 */
50 #include "perlhost.h"
51 
52 void
53 win32_checkTLS(PerlInterpreter *host_perl)
54 {
55     dTHX;
56     if (host_perl != my_perl) {
57 	int *nowhere = NULL;
58 #ifdef UNDER_CE
59 	printf(" ... bad in win32_checkTLS\n");
60 	printf("  %08X ne %08X\n",host_perl,my_perl);
61 #endif
62 	abort();
63     }
64 }
65 
66 #ifdef UNDER_CE
67 int GetLogicalDrives() {
68     return 0; /* no logical drives on CE */
69 }
70 int GetLogicalDriveStrings(int size, char addr[]) {
71     return 0; /* no logical drives on CE */
72 }
73 /* TBD */
74 DWORD GetFullPathNameA(LPCSTR fn, DWORD blen, LPTSTR buf,  LPSTR *pfile) {
75     return 0;
76 }
77 /* TBD */
78 DWORD GetFullPathNameW(CONST WCHAR *fn, DWORD blen, WCHAR * buf,  WCHAR **pfile) {
79     return 0;
80 }
81 /* TBD */
82 DWORD SetCurrentDirectoryA(LPSTR pPath) {
83     return 0;
84 }
85 /* TBD */
86 DWORD SetCurrentDirectoryW(CONST WCHAR *pPath) {
87     return 0;
88 }
89 int xcesetuid(uid_t id){return 0;}
90 int xceseteuid(uid_t id){  return 0;}
91 int xcegetuid() {return 0;}
92 int xcegeteuid(){ return 0;}
93 #endif
94 
95 /* WINCE??: include "perlhost.h" */
96 
97 EXTERN_C void
98 perl_get_host_info(struct IPerlMemInfo* perlMemInfo,
99 		   struct IPerlMemInfo* perlMemSharedInfo,
100 		   struct IPerlMemInfo* perlMemParseInfo,
101 		   struct IPerlEnvInfo* perlEnvInfo,
102 		   struct IPerlStdIOInfo* perlStdIOInfo,
103 		   struct IPerlLIOInfo* perlLIOInfo,
104 		   struct IPerlDirInfo* perlDirInfo,
105 		   struct IPerlSockInfo* perlSockInfo,
106 		   struct IPerlProcInfo* perlProcInfo)
107 {
108     if (perlMemInfo) {
109 	Copy(&perlMem, &perlMemInfo->perlMemList, perlMemInfo->nCount, void*);
110 	perlMemInfo->nCount = (sizeof(struct IPerlMem)/sizeof(void*));
111     }
112     if (perlMemSharedInfo) {
113 	Copy(&perlMem, &perlMemSharedInfo->perlMemList, perlMemSharedInfo->nCount, void*);
114 	perlMemSharedInfo->nCount = (sizeof(struct IPerlMem)/sizeof(void*));
115     }
116     if (perlMemParseInfo) {
117 	Copy(&perlMem, &perlMemParseInfo->perlMemList, perlMemParseInfo->nCount, void*);
118 	perlMemParseInfo->nCount = (sizeof(struct IPerlMem)/sizeof(void*));
119     }
120     if (perlEnvInfo) {
121 	Copy(&perlEnv, &perlEnvInfo->perlEnvList, perlEnvInfo->nCount, void*);
122 	perlEnvInfo->nCount = (sizeof(struct IPerlEnv)/sizeof(void*));
123     }
124     if (perlStdIOInfo) {
125 	Copy(&perlStdIO, &perlStdIOInfo->perlStdIOList, perlStdIOInfo->nCount, void*);
126 	perlStdIOInfo->nCount = (sizeof(struct IPerlStdIO)/sizeof(void*));
127     }
128     if (perlLIOInfo) {
129 	Copy(&perlLIO, &perlLIOInfo->perlLIOList, perlLIOInfo->nCount, void*);
130 	perlLIOInfo->nCount = (sizeof(struct IPerlLIO)/sizeof(void*));
131     }
132     if (perlDirInfo) {
133 	Copy(&perlDir, &perlDirInfo->perlDirList, perlDirInfo->nCount, void*);
134 	perlDirInfo->nCount = (sizeof(struct IPerlDir)/sizeof(void*));
135     }
136     if (perlSockInfo) {
137 	Copy(&perlSock, &perlSockInfo->perlSockList, perlSockInfo->nCount, void*);
138 	perlSockInfo->nCount = (sizeof(struct IPerlSock)/sizeof(void*));
139     }
140     if (perlProcInfo) {
141 	Copy(&perlProc, &perlProcInfo->perlProcList, perlProcInfo->nCount, void*);
142 	perlProcInfo->nCount = (sizeof(struct IPerlProc)/sizeof(void*));
143     }
144 }
145 
146 EXTERN_C PerlInterpreter*
147 perl_alloc_override(struct IPerlMem** ppMem, struct IPerlMem** ppMemShared,
148 		 struct IPerlMem** ppMemParse, struct IPerlEnv** ppEnv,
149 		 struct IPerlStdIO** ppStdIO, struct IPerlLIO** ppLIO,
150 		 struct IPerlDir** ppDir, struct IPerlSock** ppSock,
151 		 struct IPerlProc** ppProc)
152 {
153     PerlInterpreter *my_perl = NULL;
154     CPerlHost* pHost = new CPerlHost(ppMem, ppMemShared, ppMemParse, ppEnv,
155 				     ppStdIO, ppLIO, ppDir, ppSock, ppProc);
156 
157     if (pHost) {
158 	my_perl = perl_alloc_using(pHost->m_pHostperlMem,
159 				   pHost->m_pHostperlMemShared,
160 				   pHost->m_pHostperlMemParse,
161 				   pHost->m_pHostperlEnv,
162 				   pHost->m_pHostperlStdIO,
163 				   pHost->m_pHostperlLIO,
164 				   pHost->m_pHostperlDir,
165 				   pHost->m_pHostperlSock,
166 				   pHost->m_pHostperlProc);
167 	if (my_perl) {
168 	    w32_internal_host = pHost;
169 	    pHost->host_perl  = my_perl;
170 	}
171     }
172     return my_perl;
173 }
174 
175 EXTERN_C PerlInterpreter*
176 perl_alloc(void)
177 {
178     PerlInterpreter* my_perl = NULL;
179     CPerlHost* pHost = new CPerlHost();
180     if (pHost) {
181 	my_perl = perl_alloc_using(pHost->m_pHostperlMem,
182 				   pHost->m_pHostperlMemShared,
183 				   pHost->m_pHostperlMemParse,
184 				   pHost->m_pHostperlEnv,
185 				   pHost->m_pHostperlStdIO,
186 				   pHost->m_pHostperlLIO,
187 				   pHost->m_pHostperlDir,
188 				   pHost->m_pHostperlSock,
189 				   pHost->m_pHostperlProc);
190 	if (my_perl) {
191 	    w32_internal_host = pHost;
192             pHost->host_perl  = my_perl;
193 	}
194     }
195     return my_perl;
196 }
197 
198 EXTERN_C void
199 win32_delete_internal_host(void *h)
200 {
201     CPerlHost *host = (CPerlHost*)h;
202     delete host;
203 }
204 
205 #endif /* PERL_IMPLICIT_SYS */
206 
207 EXTERN_C HANDLE w32_perldll_handle;
208 
209 EXTERN_C DllExport int
210 RunPerl(int argc, char **argv, char **env)
211 {
212     int exitstatus;
213     PerlInterpreter *my_perl, *new_perl = NULL;
214     bool use_environ = (env == environ);
215 
216 #ifdef PERL_GLOBAL_STRUCT
217 #define PERLVAR(prefix,var,type) /**/
218 #define PERLVARA(prefix,var,type) /**/
219 #define PERLVARI(prefix,var,type,init) PL_Vars.prefix##var = init;
220 #define PERLVARIC(prefix,var,type,init) PL_Vars.prefix##var = init;
221 #include "perlvars.h"
222 #undef PERLVAR
223 #undef PERLVARA
224 #undef PERLVARI
225 #undef PERLVARIC
226 #endif
227 
228     PERL_SYS_INIT(&argc,&argv);
229 
230     if (!(my_perl = perl_alloc()))
231 	return (1);
232     perl_construct(my_perl);
233     PL_perl_destruct_level = 0;
234 
235     /* PERL_SYS_INIT() may update the environment, e.g. via ansify_path().
236      * This may reallocate the RTL environment block. Therefore we need
237      * to make sure that `env` continues to have the same value as `environ`
238      * if we have been called this way.  If we have been called with any
239      * other value for `env` then all environment munging by PERL_SYS_INIT()
240      * will be lost again.
241      */
242     if (use_environ)
243         env = environ;
244 
245     exitstatus = perl_parse(my_perl, xs_init, argc, argv, env);
246     if (!exitstatus) {
247 #if defined(TOP_CLONE) && defined(USE_ITHREADS)		/* XXXXXX testing */
248 	new_perl = perl_clone(my_perl, 1);
249 	exitstatus = perl_run(new_perl);
250 	PERL_SET_THX(my_perl);
251 #else
252 	exitstatus = perl_run(my_perl);
253 #endif
254     }
255 
256     perl_destruct(my_perl);
257     perl_free(my_perl);
258 #ifdef USE_ITHREADS
259     if (new_perl) {
260 	PERL_SET_THX(new_perl);
261 	perl_destruct(new_perl);
262 	perl_free(new_perl);
263     }
264 #endif
265 
266     PERL_SYS_TERM();
267 
268     return (exitstatus);
269 }
270 
271 EXTERN_C void
272 set_w32_module_name(void);
273 
274 EXTERN_C void
275 EndSockets(void);
276 
277 
278 #ifdef __MINGW32__
279 EXTERN_C		/* GCC in C++ mode mangles the name, otherwise */
280 #endif
281 BOOL APIENTRY
282 DllMain(HINSTANCE hModule,	/* DLL module handle */
283 	DWORD fdwReason,	/* reason called */
284 	LPVOID lpvReserved)	/* reserved */
285 {
286     switch (fdwReason) {
287 	/* The DLL is attaching to a process due to process
288 	 * initialization or a call to LoadLibrary.
289 	 */
290     case DLL_PROCESS_ATTACH:
291 #ifndef UNDER_CE
292 	DisableThreadLibraryCalls((HMODULE)hModule);
293 #endif
294 
295 	w32_perldll_handle = hModule;
296 	set_w32_module_name();
297 	break;
298 
299 	/* The DLL is detaching from a process due to
300 	 * process termination or call to FreeLibrary.
301 	 */
302     case DLL_PROCESS_DETACH:
303         /* As long as we use TerminateProcess()/TerminateThread() etc. for mimicing kill()
304            anything here had better be harmless if:
305             A. Not called at all.
306             B. Called after memory allocation for Heap has been forcibly removed by OS.
307             PerlIO_cleanup() was done here but fails (B).
308          */
309 	EndSockets();
310 #if defined(USE_ITHREADS)
311 	if (PL_curinterp)
312 	    FREE_THREAD_KEY;
313 #endif
314 	break;
315 
316 	/* The attached process creates a new thread. */
317     case DLL_THREAD_ATTACH:
318 	break;
319 
320 	/* The thread of the attached process terminates. */
321     case DLL_THREAD_DETACH:
322 	break;
323 
324     default:
325 	break;
326     }
327     return TRUE;
328 }
329 
330 
331 #if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
332 EXTERN_C PerlInterpreter *
333 perl_clone_host(PerlInterpreter* proto_perl, UV flags) {
334     dTHX;
335     CPerlHost *h;
336     h = new CPerlHost(*(CPerlHost*)PL_sys_intern.internal_host);
337     proto_perl = perl_clone_using(proto_perl, flags,
338                         h->m_pHostperlMem,
339                         h->m_pHostperlMemShared,
340                         h->m_pHostperlMemParse,
341                         h->m_pHostperlEnv,
342                         h->m_pHostperlStdIO,
343                         h->m_pHostperlLIO,
344                         h->m_pHostperlDir,
345                         h->m_pHostperlSock,
346                         h->m_pHostperlProc
347     );
348     proto_perl->Isys_intern.internal_host = h;
349     h->host_perl  = proto_perl;
350     return proto_perl;
351 
352 }
353 #endif
354