|
380
|
1 /* Asynchronous subprocess implementation for Win32
|
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274
|
2 Copyright (C) 1985, 1986, 1987, 1988, 1992, 1993, 1994, 1995
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|
|
3 Free Software Foundation, Inc.
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|
4 Copyright (C) 1995 Sun Microsystems, Inc.
|
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404
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5 Copyright (C) 1995, 1996, 2000 Ben Wing.
|
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274
|
6
|
|
|
7 This file is part of XEmacs.
|
|
|
8
|
|
|
9 XEmacs is free software; you can redistribute it and/or modify it
|
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|
10 under the terms of the GNU General Public License as published by the
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|
|
11 Free Software Foundation; either version 2, or (at your option) any
|
|
|
12 later version.
|
|
|
13
|
|
|
14 XEmacs is distributed in the hope that it will be useful, but WITHOUT
|
|
|
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
17 for more details.
|
|
|
18
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|
|
19 You should have received a copy of the GNU General Public License
|
|
|
20 along with XEmacs; see the file COPYING. If not, write to
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21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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|
22 Boston, MA 02111-1307, USA. */
|
|
|
23
|
|
|
24 /* Written by Kirill M. Katsnelson <kkm@kis.ru>, April 1998 */
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25
|
|
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26 #include <config.h>
|
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27 #include "lisp.h"
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|
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28
|
|
408
|
29 #include "buffer.h"
|
|
404
|
30 #include "console-msw.h"
|
|
274
|
31 #include "hash.h"
|
|
|
32 #include "lstream.h"
|
|
408
|
33 #include "nt.h"
|
|
274
|
34 #include "process.h"
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|
|
35 #include "procimpl.h"
|
|
278
|
36 #include "sysdep.h"
|
|
274
|
37
|
|
278
|
38 #include <shellapi.h>
|
|
404
|
39 #ifdef __MINGW32__
|
|
398
|
40 #include <errno.h>
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|
|
41 #endif
|
|
280
|
42 #include <signal.h>
|
|
282
|
43 #ifdef HAVE_SOCKETS
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|
|
44 #include <winsock.h>
|
|
|
45 #endif
|
|
274
|
46
|
|
373
|
47 /* Arbitrary size limit for code fragments passed to run_in_other_process */
|
|
|
48 #define FRAGMENT_CODE_SIZE 32
|
|
|
49
|
|
380
|
50 /* Implementation-specific data. Pointed to by Lisp_Process->process_data */
|
|
274
|
51 struct nt_process_data
|
|
|
52 {
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|
|
53 HANDLE h_process;
|
|
404
|
54 DWORD dwProcessId;
|
|
|
55 HWND hwnd; /* console window */
|
|
398
|
56 int need_enable_child_signals;
|
|
274
|
57 };
|
|
|
58
|
|
408
|
59 /* Control how args are quoted to ensure correct parsing by child
|
|
|
60 process. */
|
|
|
61 Lisp_Object Vmswindows_quote_process_args;
|
|
|
62
|
|
404
|
63 /* Control whether create_child causes the process to inherit Emacs'
|
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|
64 console window, or be given a new one of its own. The default is
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65 nil, to allow multiple DOS programs to run on Win95. Having separate
|
|
|
66 consoles also allows Emacs to cleanly terminate process groups. */
|
|
|
67 Lisp_Object Vmswindows_start_process_share_console;
|
|
|
68
|
|
|
69 /* Control whether create_child cause the process to inherit Emacs'
|
|
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70 error mode setting. The default is t, to minimize the possibility of
|
|
|
71 subprocesses blocking when accessing unmounted drives. */
|
|
|
72 Lisp_Object Vmswindows_start_process_inherit_error_mode;
|
|
|
73
|
|
274
|
74 #define NT_DATA(p) ((struct nt_process_data*)((p)->process_data))
|
|
|
75
|
|
|
76 /*-----------------------------------------------------------------------*/
|
|
|
77 /* Process helpers */
|
|
|
78 /*-----------------------------------------------------------------------*/
|
|
|
79
|
|
276
|
80 /* This one breaks process abstraction. Prototype is in console-msw.h,
|
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|
81 used by select_process method in event-msw.c */
|
|
|
82 HANDLE
|
|
398
|
83 get_nt_process_handle (Lisp_Process *p)
|
|
276
|
84 {
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|
|
85 return (NT_DATA (p)->h_process);
|
|
|
86 }
|
|
404
|
87
|
|
|
88 static struct Lisp_Process *
|
|
|
89 find_process_from_pid (DWORD pid)
|
|
|
90 {
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|
|
91 Lisp_Object tail, proc;
|
|
|
92
|
|
|
93 for (tail = Vprocess_list; CONSP (tail); tail = XCDR (tail))
|
|
|
94 {
|
|
|
95 proc = XCAR (tail);
|
|
|
96 if (NT_DATA (XPROCESS (proc))->dwProcessId == pid)
|
|
|
97 return XPROCESS (proc);
|
|
|
98 }
|
|
|
99 return 0;
|
|
|
100 }
|
|
|
101
|
|
280
|
102
|
|
|
103 /*-----------------------------------------------------------------------*/
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|
104 /* Running remote threads. See Microsoft Systems Journal 1994 Number 5 */
|
|
|
105 /* Jeffrey Richter, Load Your 32-bit DLL into Another Process's Address..*/
|
|
|
106 /*-----------------------------------------------------------------------*/
|
|
274
|
107
|
|
280
|
108 typedef struct
|
|
|
109 {
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|
|
110 HANDLE h_process;
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|
|
111 HANDLE h_thread;
|
|
|
112 LPVOID address;
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|
|
113 } process_memory;
|
|
|
114
|
|
|
115 /*
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|
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116 * Allocate SIZE bytes in H_PROCESS address space. Fill in PMC used
|
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117 * further by other routines. Return nonzero if successful.
|
|
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118 *
|
|
|
119 * The memory in other process is allocated by creating a suspended
|
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120 * thread. Initial stack of that thread is used as the memory
|
|
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121 * block. The thread entry point is the routine ExitThread in
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122 * kernel32.dll, so the allocated memory is freed just by resuming the
|
|
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123 * thread, which immediately terminates after that.
|
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|
124 */
|
|
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125
|
|
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126 static int
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|
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127 alloc_process_memory (HANDLE h_process, size_t size,
|
|
|
128 process_memory* pmc)
|
|
|
129 {
|
|
|
130 LPTHREAD_START_ROUTINE adr_ExitThread =
|
|
|
131 (LPTHREAD_START_ROUTINE)
|
|
|
132 GetProcAddress (GetModuleHandle ("kernel32"), "ExitThread");
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|
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133 DWORD dw_unused;
|
|
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134 CONTEXT context;
|
|
|
135 MEMORY_BASIC_INFORMATION mbi;
|
|
|
136
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|
|
137 pmc->h_process = h_process;
|
|
|
138 pmc->h_thread = CreateRemoteThread (h_process, NULL, size,
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139 adr_ExitThread, NULL,
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|
|
140 CREATE_SUSPENDED, &dw_unused);
|
|
|
141 if (pmc->h_thread == NULL)
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|
142 return 0;
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143
|
|
|
144 /* Get context, for thread's stack pointer */
|
|
|
145 context.ContextFlags = CONTEXT_CONTROL;
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|
|
146 if (!GetThreadContext (pmc->h_thread, &context))
|
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|
147 goto failure;
|
|
|
148
|
|
|
149 /* Determine base address of the committed range */
|
|
|
150 if (sizeof(mbi) != VirtualQueryEx (h_process,
|
|
|
151 #if defined (_X86_)
|
|
|
152 (LPDWORD)context.Esp - 1,
|
|
|
153 #elif defined (_ALPHA_)
|
|
|
154 (LPDWORD)context.IntSp - 1,
|
|
|
155 #else
|
|
|
156 #error Unknown processor architecture
|
|
|
157 #endif
|
|
|
158 &mbi, sizeof(mbi)))
|
|
|
159 goto failure;
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|
160
|
|
|
161 /* Change the page protection of the allocated memory to executable,
|
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162 read, and write. */
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|
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163 if (!VirtualProtectEx (h_process, mbi.BaseAddress, size,
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|
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164 PAGE_EXECUTE_READWRITE, &dw_unused))
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|
165 goto failure;
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|
|
166
|
|
|
167 pmc->address = mbi.BaseAddress;
|
|
|
168 return 1;
|
|
|
169
|
|
|
170 failure:
|
|
|
171 ResumeThread (pmc->h_thread);
|
|
|
172 pmc->address = 0;
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|
|
173 return 0;
|
|
|
174 }
|
|
|
175
|
|
|
176 static void
|
|
|
177 free_process_memory (process_memory* pmc)
|
|
|
178 {
|
|
|
179 ResumeThread (pmc->h_thread);
|
|
|
180 }
|
|
|
181
|
|
|
182 /*
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|
|
183 * Run ROUTINE in the context of process determined by H_PROCESS. The
|
|
373
|
184 * routine is passed the address of DATA as parameter. The ROUTINE must
|
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185 * not be longer than ROUTINE_CODE_SIZE bytes. DATA_SIZE is the size of
|
|
280
|
186 * DATA structure.
|
|
|
187 *
|
|
|
188 * Note that the code must be positionally independent, and compiled
|
|
|
189 * without stack checks (they cause implicit calls into CRT so will
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|
|
190 * fail). DATA should not refer any data in calling process, as both
|
|
|
191 * routine and its data are copied into remote process. Size of data
|
|
|
192 * and code together should not exceed one page (4K on x86 systems).
|
|
|
193 *
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|
|
194 * Return the value returned by ROUTINE, or (DWORD)-1 if call failed.
|
|
|
195 */
|
|
|
196 static DWORD
|
|
|
197 run_in_other_process (HANDLE h_process,
|
|
373
|
198 LPTHREAD_START_ROUTINE routine,
|
|
280
|
199 LPVOID data, size_t data_size)
|
|
|
200 {
|
|
|
201 process_memory pm;
|
|
398
|
202 const size_t code_size = FRAGMENT_CODE_SIZE;
|
|
280
|
203 /* Need at most 3 extra bytes of memory, for data alignment */
|
|
|
204 size_t total_size = code_size + data_size + 3;
|
|
|
205 LPVOID remote_data;
|
|
|
206 HANDLE h_thread;
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|
|
207 DWORD dw_unused;
|
|
|
208
|
|
|
209 /* Allocate memory */
|
|
|
210 if (!alloc_process_memory (h_process, total_size, &pm))
|
|
|
211 return (DWORD)-1;
|
|
|
212
|
|
|
213 /* Copy code */
|
|
|
214 if (!WriteProcessMemory (h_process, pm.address, (LPVOID)routine,
|
|
|
215 code_size, NULL))
|
|
|
216 goto failure;
|
|
|
217
|
|
|
218 /* Copy data */
|
|
|
219 if (data_size)
|
|
|
220 {
|
|
|
221 remote_data = (LPBYTE)pm.address + ((code_size + 4) & ~3);
|
|
|
222 if (!WriteProcessMemory (h_process, remote_data, data, data_size, NULL))
|
|
|
223 goto failure;
|
|
|
224 }
|
|
|
225 else
|
|
|
226 remote_data = NULL;
|
|
|
227
|
|
|
228 /* Execute the remote copy of code, passing it remote data */
|
|
|
229 h_thread = CreateRemoteThread (h_process, NULL, 0,
|
|
|
230 (LPTHREAD_START_ROUTINE) pm.address,
|
|
|
231 remote_data, 0, &dw_unused);
|
|
|
232 if (h_thread == NULL)
|
|
|
233 goto failure;
|
|
|
234
|
|
|
235 /* Wait till thread finishes */
|
|
|
236 WaitForSingleObject (h_thread, INFINITE);
|
|
|
237
|
|
|
238 /* Free remote memory */
|
|
|
239 free_process_memory (&pm);
|
|
|
240
|
|
|
241 /* Return thread's exit code */
|
|
|
242 {
|
|
|
243 DWORD exit_code;
|
|
|
244 GetExitCodeThread (h_thread, &exit_code);
|
|
|
245 CloseHandle (h_thread);
|
|
|
246 return exit_code;
|
|
|
247 }
|
|
|
248
|
|
|
249 failure:
|
|
|
250 free_process_memory (&pm);
|
|
|
251 return (DWORD)-1;
|
|
|
252 }
|
|
|
253
|
|
|
254 /*-----------------------------------------------------------------------*/
|
|
|
255 /* Sending signals */
|
|
|
256 /*-----------------------------------------------------------------------*/
|
|
|
257
|
|
404
|
258 /* ---------------------------- the NT way ------------------------------- */
|
|
|
259
|
|
280
|
260 /*
|
|
|
261 * We handle the following signals:
|
|
|
262 *
|
|
288
|
263 * SIGKILL, SIGTERM, SIGQUIT, SIGHUP - These four translate to ExitProcess
|
|
280
|
264 * executed by the remote process
|
|
|
265 * SIGINT - The remote process is sent CTRL_BREAK_EVENT
|
|
373
|
266 *
|
|
|
267 * The MSVC5.0 compiler feels free to re-order functions within a
|
|
|
268 * compilation unit, so we have no way of finding out the size of the
|
|
|
269 * following functions. Therefore these functions must not be larger than
|
|
|
270 * FRAGMENT_CODE_SIZE.
|
|
280
|
271 */
|
|
|
272
|
|
|
273 /*
|
|
|
274 * Sending SIGKILL
|
|
|
275 */
|
|
|
276 typedef struct
|
|
|
277 {
|
|
|
278 void (WINAPI *adr_ExitProcess) (UINT);
|
|
|
279 } sigkill_data;
|
|
|
280
|
|
|
281 static DWORD WINAPI
|
|
|
282 sigkill_proc (sigkill_data* data)
|
|
|
283 {
|
|
|
284 (*data->adr_ExitProcess)(255);
|
|
|
285 return 1;
|
|
|
286 }
|
|
|
287
|
|
|
288 /*
|
|
|
289 * Sending break or control c
|
|
|
290 */
|
|
|
291 typedef struct
|
|
|
292 {
|
|
|
293 BOOL (WINAPI *adr_GenerateConsoleCtrlEvent) (DWORD, DWORD);
|
|
|
294 DWORD event;
|
|
|
295 } sigint_data;
|
|
|
296
|
|
|
297 static DWORD WINAPI
|
|
|
298 sigint_proc (sigint_data* data)
|
|
|
299 {
|
|
|
300 return (*data->adr_GenerateConsoleCtrlEvent) (data->event, 0);
|
|
|
301 }
|
|
|
302
|
|
|
303 /*
|
|
|
304 * Enabling signals
|
|
|
305 */
|
|
|
306 typedef struct
|
|
|
307 {
|
|
|
308 BOOL (WINAPI *adr_SetConsoleCtrlHandler) (LPVOID, BOOL);
|
|
|
309 } sig_enable_data;
|
|
|
310
|
|
|
311 static DWORD WINAPI
|
|
|
312 sig_enable_proc (sig_enable_data* data)
|
|
|
313 {
|
|
|
314 (*data->adr_SetConsoleCtrlHandler) (NULL, FALSE);
|
|
|
315 return 1;
|
|
|
316 }
|
|
|
317
|
|
|
318 /*
|
|
|
319 * Send signal SIGNO to process H_PROCESS.
|
|
|
320 * Return nonzero if successful.
|
|
|
321 */
|
|
|
322
|
|
|
323 static int
|
|
404
|
324 send_signal_the_nt_way (struct nt_process_data *cp, int pid, int signo)
|
|
280
|
325 {
|
|
404
|
326 HANDLE h_process;
|
|
280
|
327 HMODULE h_kernel = GetModuleHandle ("kernel32");
|
|
404
|
328 int close_process = 0;
|
|
280
|
329 DWORD retval;
|
|
|
330
|
|
|
331 assert (h_kernel != NULL);
|
|
|
332
|
|
404
|
333 if (cp)
|
|
|
334 {
|
|
|
335 pid = cp->dwProcessId;
|
|
|
336 h_process = cp->h_process;
|
|
|
337 }
|
|
|
338 else
|
|
|
339 {
|
|
|
340 close_process = 1;
|
|
|
341 /* Try to open the process with required privileges */
|
|
|
342 h_process = OpenProcess (PROCESS_CREATE_THREAD
|
|
|
343 | PROCESS_QUERY_INFORMATION
|
|
|
344 | PROCESS_VM_OPERATION
|
|
|
345 | PROCESS_VM_WRITE,
|
|
|
346 FALSE, pid);
|
|
|
347 if (!h_process)
|
|
|
348 return 0;
|
|
|
349 }
|
|
|
350
|
|
280
|
351 switch (signo)
|
|
|
352 {
|
|
|
353 case SIGKILL:
|
|
|
354 case SIGTERM:
|
|
|
355 case SIGQUIT:
|
|
288
|
356 case SIGHUP:
|
|
280
|
357 {
|
|
|
358 sigkill_data d;
|
|
404
|
359
|
|
|
360 d.adr_ExitProcess =
|
|
|
361 (void (WINAPI *) (UINT)) GetProcAddress (h_kernel, "ExitProcess");
|
|
280
|
362 assert (d.adr_ExitProcess);
|
|
398
|
363 retval = run_in_other_process (h_process,
|
|
|
364 (LPTHREAD_START_ROUTINE)sigkill_proc,
|
|
280
|
365 &d, sizeof (d));
|
|
|
366 break;
|
|
|
367 }
|
|
|
368 case SIGINT:
|
|
|
369 {
|
|
|
370 sigint_data d;
|
|
|
371 d.adr_GenerateConsoleCtrlEvent =
|
|
404
|
372 (BOOL (WINAPI *) (DWORD, DWORD))
|
|
280
|
373 GetProcAddress (h_kernel, "GenerateConsoleCtrlEvent");
|
|
|
374 assert (d.adr_GenerateConsoleCtrlEvent);
|
|
|
375 d.event = CTRL_C_EVENT;
|
|
398
|
376 retval = run_in_other_process (h_process,
|
|
|
377 (LPTHREAD_START_ROUTINE)sigint_proc,
|
|
280
|
378 &d, sizeof (d));
|
|
|
379 break;
|
|
|
380 }
|
|
|
381 default:
|
|
|
382 assert (0);
|
|
|
383 }
|
|
|
384
|
|
404
|
385 if (close_process)
|
|
|
386 CloseHandle (h_process);
|
|
280
|
387 return (int)retval > 0 ? 1 : 0;
|
|
|
388 }
|
|
|
389
|
|
|
390 /*
|
|
|
391 * Enable CTRL_C_EVENT handling in a new child process
|
|
|
392 */
|
|
|
393 static void
|
|
|
394 enable_child_signals (HANDLE h_process)
|
|
|
395 {
|
|
|
396 HMODULE h_kernel = GetModuleHandle ("kernel32");
|
|
|
397 sig_enable_data d;
|
|
|
398
|
|
|
399 assert (h_kernel != NULL);
|
|
|
400 d.adr_SetConsoleCtrlHandler =
|
|
404
|
401 (BOOL (WINAPI *) (LPVOID, BOOL))
|
|
280
|
402 GetProcAddress (h_kernel, "SetConsoleCtrlHandler");
|
|
|
403 assert (d.adr_SetConsoleCtrlHandler);
|
|
398
|
404 run_in_other_process (h_process, (LPTHREAD_START_ROUTINE)sig_enable_proc,
|
|
280
|
405 &d, sizeof (d));
|
|
|
406 }
|
|
|
407
|
|
|
408 #pragma warning (default : 4113)
|
|
|
409
|
|
404
|
410 /* ---------------------------- the 95 way ------------------------------- */
|
|
|
411
|
|
|
412 static BOOL CALLBACK
|
|
|
413 find_child_console (HWND hwnd, struct nt_process_data *cp)
|
|
|
414 {
|
|
|
415 DWORD thread_id;
|
|
|
416 DWORD process_id;
|
|
|
417
|
|
|
418 thread_id = GetWindowThreadProcessId (hwnd, &process_id);
|
|
|
419 if (process_id == cp->dwProcessId)
|
|
|
420 {
|
|
|
421 char window_class[32];
|
|
|
422
|
|
|
423 GetClassName (hwnd, window_class, sizeof (window_class));
|
|
|
424 if (strcmp (window_class,
|
|
|
425 msw_windows9x_p ()
|
|
|
426 ? "tty"
|
|
|
427 : "ConsoleWindowClass") == 0)
|
|
|
428 {
|
|
|
429 cp->hwnd = hwnd;
|
|
|
430 return FALSE;
|
|
|
431 }
|
|
|
432 }
|
|
|
433 /* keep looking */
|
|
|
434 return TRUE;
|
|
|
435 }
|
|
|
436
|
|
|
437 static int
|
|
|
438 send_signal_the_95_way (struct nt_process_data *cp, int pid, int signo)
|
|
|
439 {
|
|
|
440 HANDLE h_process;
|
|
|
441 int close_process = 0;
|
|
|
442 int rc = 1;
|
|
|
443
|
|
|
444 if (cp)
|
|
|
445 {
|
|
|
446 pid = cp->dwProcessId;
|
|
|
447 h_process = cp->h_process;
|
|
|
448
|
|
|
449 /* Try to locate console window for process. */
|
|
|
450 EnumWindows (find_child_console, (LPARAM) cp);
|
|
|
451 }
|
|
|
452 else
|
|
|
453 {
|
|
|
454 close_process = 1;
|
|
|
455 /* Try to open the process with required privileges */
|
|
|
456 h_process = OpenProcess (PROCESS_TERMINATE, FALSE, pid);
|
|
|
457 if (!h_process)
|
|
|
458 return 0;
|
|
|
459 }
|
|
|
460
|
|
|
461 if (signo == SIGINT)
|
|
|
462 {
|
|
|
463 if (NILP (Vmswindows_start_process_share_console) && cp && cp->hwnd)
|
|
|
464 {
|
|
|
465 BYTE control_scan_code = (BYTE) MapVirtualKey (VK_CONTROL, 0);
|
|
|
466 BYTE vk_break_code = VK_CANCEL;
|
|
|
467 BYTE break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
|
|
|
468 HWND foreground_window;
|
|
|
469
|
|
|
470 if (break_scan_code == 0)
|
|
|
471 {
|
|
|
472 /* Fake Ctrl-C if we can't manage Ctrl-Break. */
|
|
|
473 vk_break_code = 'C';
|
|
|
474 break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
|
|
|
475 }
|
|
|
476
|
|
|
477 foreground_window = GetForegroundWindow ();
|
|
|
478 if (foreground_window)
|
|
|
479 {
|
|
|
480 /* NT 5.0, and apparently also Windows 98, will not allow
|
|
|
481 a Window to be set to foreground directly without the
|
|
|
482 user's involvement. The workaround is to attach
|
|
|
483 ourselves to the thread that owns the foreground
|
|
|
484 window, since that is the only thread that can set the
|
|
|
485 foreground window. */
|
|
|
486 DWORD foreground_thread, child_thread;
|
|
|
487 foreground_thread =
|
|
|
488 GetWindowThreadProcessId (foreground_window, NULL);
|
|
|
489 if (foreground_thread == GetCurrentThreadId ()
|
|
|
490 || !AttachThreadInput (GetCurrentThreadId (),
|
|
|
491 foreground_thread, TRUE))
|
|
|
492 foreground_thread = 0;
|
|
|
493
|
|
|
494 child_thread = GetWindowThreadProcessId (cp->hwnd, NULL);
|
|
|
495 if (child_thread == GetCurrentThreadId ()
|
|
|
496 || !AttachThreadInput (GetCurrentThreadId (),
|
|
|
497 child_thread, TRUE))
|
|
|
498 child_thread = 0;
|
|
|
499
|
|
|
500 /* Set the foreground window to the child. */
|
|
|
501 if (SetForegroundWindow (cp->hwnd))
|
|
|
502 {
|
|
|
503 /* Generate keystrokes as if user had typed Ctrl-Break or
|
|
|
504 Ctrl-C. */
|
|
|
505 keybd_event (VK_CONTROL, control_scan_code, 0, 0);
|
|
|
506 keybd_event (vk_break_code, break_scan_code,
|
|
|
507 (vk_break_code == 'C' ? 0 : KEYEVENTF_EXTENDEDKEY), 0);
|
|
|
508 keybd_event (vk_break_code, break_scan_code,
|
|
|
509 (vk_break_code == 'C' ? 0 : KEYEVENTF_EXTENDEDKEY)
|
|
|
510 | KEYEVENTF_KEYUP, 0);
|
|
|
511 keybd_event (VK_CONTROL, control_scan_code,
|
|
|
512 KEYEVENTF_KEYUP, 0);
|
|
|
513
|
|
|
514 /* Sleep for a bit to give time for Emacs frame to respond
|
|
|
515 to focus change events (if Emacs was active app). */
|
|
|
516 Sleep (100);
|
|
|
517
|
|
|
518 SetForegroundWindow (foreground_window);
|
|
|
519 }
|
|
|
520 /* Detach from the foreground and child threads now that
|
|
|
521 the foreground switching is over. */
|
|
|
522 if (foreground_thread)
|
|
|
523 AttachThreadInput (GetCurrentThreadId (),
|
|
|
524 foreground_thread, FALSE);
|
|
|
525 if (child_thread)
|
|
|
526 AttachThreadInput (GetCurrentThreadId (),
|
|
|
527 child_thread, FALSE);
|
|
|
528 }
|
|
|
529 }
|
|
|
530 /* Ctrl-Break is NT equivalent of SIGINT. */
|
|
|
531 else if (!GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, pid))
|
|
|
532 {
|
|
|
533 #if 0 /* FSF Emacs */
|
|
|
534 DebPrint (("sys_kill.GenerateConsoleCtrlEvent return %d "
|
|
|
535 "for pid %lu\n", GetLastError (), pid));
|
|
|
536 errno = EINVAL;
|
|
|
537 #endif
|
|
|
538 rc = 0;
|
|
|
539 }
|
|
|
540 }
|
|
|
541 else
|
|
|
542 {
|
|
|
543 if (NILP (Vmswindows_start_process_share_console) && cp && cp->hwnd)
|
|
|
544 {
|
|
|
545 #if 1
|
|
|
546 if (msw_windows9x_p ())
|
|
|
547 {
|
|
|
548 /*
|
|
|
549 Another possibility is to try terminating the VDM out-right by
|
|
|
550 calling the Shell VxD (id 0x17) V86 interface, function #4
|
|
|
551 "SHELL_Destroy_VM", ie.
|
|
|
552
|
|
|
553 mov edx,4
|
|
|
554 mov ebx,vm_handle
|
|
|
555 call shellapi
|
|
|
556
|
|
|
557 First need to determine the current VM handle, and then arrange for
|
|
|
558 the shellapi call to be made from the system vm (by using
|
|
|
559 Switch_VM_and_callback).
|
|
|
560
|
|
|
561 Could try to invoke DestroyVM through CallVxD.
|
|
|
562
|
|
|
563 */
|
|
|
564 #if 0
|
|
|
565 /* On Win95, posting WM_QUIT causes the 16-bit subsystem
|
|
|
566 to hang when cmdproxy is used in conjunction with
|
|
|
567 command.com for an interactive shell. Posting
|
|
|
568 WM_CLOSE pops up a dialog that, when Yes is selected,
|
|
|
569 does the same thing. TerminateProcess is also less
|
|
|
570 than ideal in that subprocesses tend to stick around
|
|
|
571 until the machine is shutdown, but at least it
|
|
|
572 doesn't freeze the 16-bit subsystem. */
|
|
|
573 PostMessage (cp->hwnd, WM_QUIT, 0xff, 0);
|
|
|
574 #endif
|
|
|
575 if (!TerminateProcess (h_process, 0xff))
|
|
|
576 {
|
|
|
577 #if 0 /* FSF Emacs */
|
|
|
578 DebPrint (("sys_kill.TerminateProcess returned %d "
|
|
|
579 "for pid %lu\n", GetLastError (), pid));
|
|
|
580 errno = EINVAL;
|
|
|
581 #endif
|
|
|
582 rc = 0;
|
|
|
583 }
|
|
|
584 }
|
|
|
585 else
|
|
|
586 #endif
|
|
|
587 PostMessage (cp->hwnd, WM_CLOSE, 0, 0);
|
|
|
588 }
|
|
|
589 /* Kill the process. On W32 this doesn't kill child processes
|
|
|
590 so it doesn't work very well for shells which is why it's not
|
|
|
591 used in every case. */
|
|
|
592 else if (!TerminateProcess (h_process, 0xff))
|
|
|
593 {
|
|
|
594 #if 0 /* FSF Emacs */
|
|
|
595 DebPrint (("sys_kill.TerminateProcess returned %d "
|
|
|
596 "for pid %lu\n", GetLastError (), pid));
|
|
|
597 errno = EINVAL;
|
|
|
598 #endif
|
|
|
599 rc = 0;
|
|
|
600 }
|
|
|
601 }
|
|
|
602
|
|
|
603 if (close_process)
|
|
|
604 CloseHandle (h_process);
|
|
|
605
|
|
|
606 return rc;
|
|
|
607 }
|
|
|
608
|
|
|
609 /* -------------------------- all-OS functions ---------------------------- */
|
|
|
610
|
|
|
611 static int
|
|
|
612 send_signal (struct nt_process_data *cp, int pid, int signo)
|
|
|
613 {
|
|
|
614 return send_signal_the_nt_way (cp, pid, signo)
|
|
|
615 || send_signal_the_95_way (cp, pid, signo);
|
|
|
616 }
|
|
|
617
|
|
280
|
618 /*
|
|
|
619 * Signal error if SIGNO is not supported
|
|
|
620 */
|
|
|
621 static void
|
|
|
622 validate_signal_number (int signo)
|
|
|
623 {
|
|
|
624 if (signo != SIGKILL && signo != SIGTERM
|
|
288
|
625 && signo != SIGQUIT && signo != SIGINT
|
|
|
626 && signo != SIGHUP)
|
|
286
|
627 signal_simple_error ("Signal number not supported", make_int (signo));
|
|
280
|
628 }
|
|
|
629
|
|
274
|
630 /*-----------------------------------------------------------------------*/
|
|
|
631 /* Process methods */
|
|
|
632 /*-----------------------------------------------------------------------*/
|
|
|
633
|
|
|
634 /*
|
|
|
635 * Allocate and initialize Lisp_Process->process_data
|
|
|
636 */
|
|
|
637
|
|
|
638 static void
|
|
398
|
639 nt_alloc_process_data (Lisp_Process *p)
|
|
274
|
640 {
|
|
282
|
641 p->process_data = xnew_and_zero (struct nt_process_data);
|
|
274
|
642 }
|
|
|
643
|
|
|
644 static void
|
|
398
|
645 nt_finalize_process_data (Lisp_Process *p, int for_disksave)
|
|
274
|
646 {
|
|
|
647 assert (!for_disksave);
|
|
404
|
648 if (NT_DATA (p)->h_process)
|
|
|
649 CloseHandle (NT_DATA (p)->h_process);
|
|
274
|
650 }
|
|
|
651
|
|
|
652 /*
|
|
380
|
653 * Initialize XEmacs process implementation once
|
|
274
|
654 */
|
|
|
655 static void
|
|
|
656 nt_init_process (void)
|
|
|
657 {
|
|
282
|
658 /* Initialize winsock */
|
|
|
659 WSADATA wsa_data;
|
|
|
660 /* Request Winsock v1.1 Note the order: (minor=1, major=1) */
|
|
|
661 WSAStartup (MAKEWORD (1,1), &wsa_data);
|
|
274
|
662 }
|
|
|
663
|
|
|
664 /*
|
|
|
665 * Fork off a subprocess. P is a pointer to newly created subprocess
|
|
|
666 * object. If this function signals, the caller is responsible for
|
|
|
667 * deleting (and finalizing) the process object.
|
|
|
668 *
|
|
380
|
669 * The method must return PID of the new process, a (positive??? ####) number
|
|
274
|
670 * which fits into Lisp_Int. No return value indicates an error, the method
|
|
|
671 * must signal an error instead.
|
|
|
672 */
|
|
|
673
|
|
278
|
674 static void
|
|
288
|
675 signal_cannot_launch (Lisp_Object image_file, DWORD err)
|
|
278
|
676 {
|
|
|
677 mswindows_set_errno (err);
|
|
290
|
678 signal_simple_error_2 ("Error starting", image_file, lisp_strerror (errno));
|
|
278
|
679 }
|
|
|
680
|
|
404
|
681 static void
|
|
408
|
682 ensure_console_window_exists (void)
|
|
404
|
683 {
|
|
|
684 if (msw_windows9x_p ())
|
|
|
685 msw_hide_console ();
|
|
|
686 }
|
|
|
687
|
|
408
|
688 int
|
|
|
689 compare_env (const void *strp1, const void *strp2)
|
|
|
690 {
|
|
|
691 const char *str1 = *(const char**)strp1, *str2 = *(const char**)strp2;
|
|
|
692
|
|
|
693 while (*str1 && *str2 && *str1 != '=' && *str2 != '=')
|
|
|
694 {
|
|
|
695 if ((*str1) > (*str2))
|
|
|
696 return 1;
|
|
|
697 else if ((*str1) < (*str2))
|
|
|
698 return -1;
|
|
|
699 str1++, str2++;
|
|
|
700 }
|
|
|
701
|
|
|
702 if (*str1 == '=' && *str2 == '=')
|
|
|
703 return 0;
|
|
|
704 else if (*str1 == '=')
|
|
|
705 return -1;
|
|
|
706 else
|
|
|
707 return 1;
|
|
|
708 }
|
|
|
709
|
|
274
|
710 static int
|
|
398
|
711 nt_create_process (Lisp_Process *p,
|
|
288
|
712 Lisp_Object *argv, int nargv,
|
|
|
713 Lisp_Object program, Lisp_Object cur_dir)
|
|
274
|
714 {
|
|
408
|
715 /* Synched up with sys_spawnve in FSF 20.6. Significantly different
|
|
|
716 but still synchable. */
|
|
398
|
717 HANDLE hmyshove, hmyslurp, hprocin, hprocout, hprocerr;
|
|
408
|
718 Extbyte *command_line;
|
|
278
|
719 BOOL do_io, windowed;
|
|
398
|
720 char *proc_env;
|
|
278
|
721
|
|
408
|
722 /* No need to DOS-ize the filename; expand-file-name (called prior)
|
|
|
723 already does this. */
|
|
|
724
|
|
278
|
725 /* Find out whether the application is windowed or not */
|
|
274
|
726 {
|
|
278
|
727 /* SHGetFileInfo tends to return ERROR_FILE_NOT_FOUND on most
|
|
|
728 errors. This leads to bogus error message. */
|
|
298
|
729 DWORD image_type;
|
|
|
730 char *p = strrchr ((char *)XSTRING_DATA (program), '.');
|
|
|
731 if (p != NULL &&
|
|
|
732 (stricmp (p, ".exe") == 0 ||
|
|
|
733 stricmp (p, ".com") == 0 ||
|
|
|
734 stricmp (p, ".bat") == 0 ||
|
|
|
735 stricmp (p, ".cmd") == 0))
|
|
|
736 {
|
|
|
737 image_type = SHGetFileInfo ((char *)XSTRING_DATA (program), 0,NULL,
|
|
|
738 0, SHGFI_EXETYPE);
|
|
|
739 }
|
|
|
740 else
|
|
|
741 {
|
|
|
742 char progname[MAX_PATH];
|
|
|
743 sprintf (progname, "%s.exe", (char *)XSTRING_DATA (program));
|
|
|
744 image_type = SHGetFileInfo (progname, 0, NULL, 0, SHGFI_EXETYPE);
|
|
|
745 }
|
|
278
|
746 if (image_type == 0)
|
|
288
|
747 signal_cannot_launch (program, (GetLastError () == ERROR_FILE_NOT_FOUND
|
|
278
|
748 ? ERROR_BAD_FORMAT : GetLastError ()));
|
|
|
749 windowed = HIWORD (image_type) != 0;
|
|
|
750 }
|
|
274
|
751
|
|
278
|
752 /* Decide whether to do I/O on process handles, or just mark the
|
|
|
753 process exited immediately upon successful launching. We do I/O if the
|
|
|
754 process is a console one, or if it is windowed but windowed_process_io
|
|
|
755 is non-zero */
|
|
|
756 do_io = !windowed || windowed_process_io ;
|
|
|
757
|
|
|
758 if (do_io)
|
|
|
759 {
|
|
|
760 /* Create two unidirectional named pipes */
|
|
|
761 HANDLE htmp;
|
|
|
762 SECURITY_ATTRIBUTES sa;
|
|
274
|
763
|
|
278
|
764 sa.nLength = sizeof(sa);
|
|
|
765 sa.bInheritHandle = TRUE;
|
|
|
766 sa.lpSecurityDescriptor = NULL;
|
|
|
767
|
|
|
768 CreatePipe (&hprocin, &hmyshove, &sa, 0);
|
|
|
769 CreatePipe (&hmyslurp, &hprocout, &sa, 0);
|
|
|
770
|
|
398
|
771 /* Duplicate the stdout handle for use as stderr */
|
|
408
|
772 DuplicateHandle(GetCurrentProcess(), hprocout, GetCurrentProcess(),
|
|
|
773 &hprocerr, 0, TRUE, DUPLICATE_SAME_ACCESS);
|
|
398
|
774
|
|
278
|
775 /* Stupid Win32 allows to create a pipe with *both* ends either
|
|
|
776 inheritable or not. We need process ends inheritable, and local
|
|
|
777 ends not inheritable. */
|
|
408
|
778 DuplicateHandle (GetCurrentProcess(), hmyshove, GetCurrentProcess(),
|
|
|
779 &htmp, 0, FALSE,
|
|
|
780 DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS);
|
|
278
|
781 hmyshove = htmp;
|
|
408
|
782 DuplicateHandle (GetCurrentProcess(), hmyslurp, GetCurrentProcess(),
|
|
|
783 &htmp, 0, FALSE,
|
|
|
784 DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS);
|
|
278
|
785 hmyslurp = htmp;
|
|
|
786 }
|
|
274
|
787
|
|
408
|
788 /* Convert an argv vector into Win32 style command line. */
|
|
274
|
789 {
|
|
288
|
790 int i;
|
|
408
|
791 Bufbyte **quoted_args;
|
|
|
792 int is_dos_app, is_cygnus_app;
|
|
|
793 int do_quoting = 0;
|
|
|
794 char escape_char = 0;
|
|
|
795
|
|
|
796 nargv++; /* include program; we access argv offset by 1 below */
|
|
|
797 quoted_args = alloca_array (Bufbyte *, nargv);
|
|
|
798
|
|
|
799 /* Determine whether program is a 16-bit DOS executable, or a Win32
|
|
|
800 executable that is implicitly linked to the Cygnus dll (implying it
|
|
|
801 was compiled with the Cygnus GNU toolchain and hence relies on
|
|
|
802 cygwin.dll to parse the command line - we use this to decide how to
|
|
|
803 escape quote chars in command line args that must be quoted). */
|
|
|
804 mswindows_executable_type (XSTRING_DATA (program),
|
|
|
805 &is_dos_app, &is_cygnus_app);
|
|
|
806
|
|
|
807 #if 0
|
|
|
808 /* #### we need to port this. */
|
|
|
809 /* On Windows 95, if cmdname is a DOS app, we invoke a helper
|
|
|
810 application to start it by specifying the helper app as cmdname,
|
|
|
811 while leaving the real app name as argv[0]. */
|
|
|
812 if (is_dos_app)
|
|
|
813 {
|
|
|
814 cmdname = (char*) alloca (MAXPATHLEN);
|
|
|
815 if (egetenv ("CMDPROXY"))
|
|
|
816 strcpy ((char*)cmdname, egetenv ("CMDPROXY"));
|
|
|
817 else
|
|
|
818 {
|
|
|
819 strcpy ((char*)cmdname, XSTRING_DATA (Vinvocation_directory));
|
|
|
820 strcat ((char*)cmdname, "cmdproxy.exe");
|
|
|
821 }
|
|
|
822 }
|
|
|
823 #endif
|
|
|
824
|
|
|
825 /* we have to do some conjuring here to put argv and envp into the
|
|
|
826 form CreateProcess wants... argv needs to be a space separated/null
|
|
|
827 terminated list of parameters, and envp is a null
|
|
|
828 separated/double-null terminated list of parameters.
|
|
|
829
|
|
|
830 Additionally, zero-length args and args containing whitespace or
|
|
|
831 quote chars need to be wrapped in double quotes - for this to work,
|
|
|
832 embedded quotes need to be escaped as well. The aim is to ensure
|
|
|
833 the child process reconstructs the argv array we start with
|
|
|
834 exactly, so we treat quotes at the beginning and end of arguments
|
|
|
835 as embedded quotes.
|
|
|
836
|
|
|
837 The Win32 GNU-based library from Cygnus doubles quotes to escape
|
|
|
838 them, while MSVC uses backslash for escaping. (Actually the MSVC
|
|
|
839 startup code does attempt to recognize doubled quotes and accept
|
|
|
840 them, but gets it wrong and ends up requiring three quotes to get a
|
|
|
841 single embedded quote!) So by default we decide whether to use
|
|
|
842 quote or backslash as the escape character based on whether the
|
|
|
843 binary is apparently a Cygnus compiled app.
|
|
288
|
844
|
|
408
|
845 Note that using backslash to escape embedded quotes requires
|
|
|
846 additional special handling if an embedded quote is already
|
|
|
847 preceded by backslash, or if an arg requiring quoting ends with
|
|
|
848 backslash. In such cases, the run of escape characters needs to be
|
|
|
849 doubled. For consistency, we apply this special handling as long
|
|
|
850 as the escape character is not quote.
|
|
|
851
|
|
|
852 Since we have no idea how large argv and envp are likely to be we
|
|
|
853 figure out list lengths on the fly and allocate them. */
|
|
|
854
|
|
|
855 if (!NILP (Vmswindows_quote_process_args))
|
|
|
856 {
|
|
|
857 do_quoting = 1;
|
|
|
858 /* Override escape char by binding mswindows-quote-process-args to
|
|
|
859 desired character, or use t for auto-selection. */
|
|
|
860 if (INTP (Vmswindows_quote_process_args))
|
|
|
861 escape_char = (char) XINT (Vmswindows_quote_process_args);
|
|
|
862 else
|
|
|
863 escape_char = is_cygnus_app ? '"' : '\\';
|
|
|
864 }
|
|
|
865
|
|
|
866 /* do argv... */
|
|
|
867 for (i = 0; i < nargv; ++i)
|
|
|
868 {
|
|
|
869 Bufbyte *targ = XSTRING_DATA (i == 0 ? program : argv[i - 1]);
|
|
|
870 Bufbyte *p = targ;
|
|
|
871 int need_quotes = 0;
|
|
|
872 int escape_char_run = 0;
|
|
|
873 int arglen = 0;
|
|
|
874
|
|
|
875 if (*p == 0)
|
|
|
876 need_quotes = 1;
|
|
|
877 for ( ; *p; p++)
|
|
|
878 {
|
|
|
879 if (*p == '"')
|
|
|
880 {
|
|
|
881 /* allow for embedded quotes to be escaped */
|
|
|
882 arglen++;
|
|
|
883 need_quotes = 1;
|
|
|
884 /* handle the case where the embedded quote is already escaped */
|
|
|
885 if (escape_char_run > 0)
|
|
|
886 {
|
|
|
887 /* To preserve the arg exactly, we need to double the
|
|
|
888 preceding escape characters (plus adding one to
|
|
|
889 escape the quote character itself). */
|
|
|
890 arglen += escape_char_run;
|
|
|
891 }
|
|
|
892 }
|
|
|
893 else if (*p == ' ' || *p == '\t')
|
|
|
894 {
|
|
|
895 need_quotes = 1;
|
|
|
896 }
|
|
|
897
|
|
|
898 if (*p == escape_char && escape_char != '"')
|
|
|
899 escape_char_run++;
|
|
|
900 else
|
|
|
901 escape_char_run = 0;
|
|
|
902 }
|
|
|
903 if (need_quotes)
|
|
|
904 {
|
|
|
905 arglen += 2;
|
|
|
906 /* handle the case where the arg ends with an escape char - we
|
|
|
907 must not let the enclosing quote be escaped. */
|
|
|
908 if (escape_char_run > 0)
|
|
|
909 arglen += escape_char_run;
|
|
|
910 }
|
|
|
911 arglen += strlen (targ) + 1;
|
|
|
912
|
|
|
913 quoted_args[i] = alloca_array (Bufbyte, arglen);
|
|
|
914 }
|
|
274
|
915
|
|
288
|
916 for (i = 0; i < nargv; ++i)
|
|
408
|
917 {
|
|
|
918 Bufbyte *targ = XSTRING_DATA (i == 0 ? program : argv[i - 1]);
|
|
|
919 Bufbyte *p = targ;
|
|
|
920 int need_quotes = 0;
|
|
|
921 Bufbyte *parg = quoted_args[i];
|
|
|
922
|
|
|
923 if (*p == 0)
|
|
|
924 need_quotes = 1;
|
|
274
|
925
|
|
408
|
926 if (do_quoting)
|
|
|
927 {
|
|
|
928 for ( ; *p; p++)
|
|
|
929 if (*p == ' ' || *p == '\t' || *p == '"')
|
|
|
930 need_quotes = 1;
|
|
|
931 }
|
|
|
932 if (need_quotes)
|
|
|
933 {
|
|
|
934 int escape_char_run = 0;
|
|
|
935 Bufbyte * first;
|
|
|
936 Bufbyte * last;
|
|
286
|
937
|
|
408
|
938 p = targ;
|
|
|
939 first = p;
|
|
|
940 last = p + strlen (p) - 1;
|
|
|
941 *parg++ = '"';
|
|
|
942 #if 0
|
|
|
943 /* This version does not escape quotes if they occur at the
|
|
|
944 beginning or end of the arg - this could lead to incorrect
|
|
|
945 behavior when the arg itself represents a command line
|
|
|
946 containing quoted args. I believe this was originally done
|
|
|
947 as a hack to make some things work, before
|
|
|
948 `mswindows-quote-process-args' was added. */
|
|
|
949 while (*p)
|
|
|
950 {
|
|
|
951 if (*p == '"' && p > first && p < last)
|
|
|
952 *parg++ = escape_char; /* escape embedded quotes */
|
|
|
953 *parg++ = *p++;
|
|
|
954 }
|
|
|
955 #else
|
|
|
956 for ( ; *p; p++)
|
|
|
957 {
|
|
|
958 if (*p == '"')
|
|
|
959 {
|
|
|
960 /* double preceding escape chars if any */
|
|
|
961 while (escape_char_run > 0)
|
|
|
962 {
|
|
|
963 *parg++ = escape_char;
|
|
|
964 escape_char_run--;
|
|
|
965 }
|
|
|
966 /* escape all quote chars, even at beginning or end */
|
|
|
967 *parg++ = escape_char;
|
|
|
968 }
|
|
|
969 *parg++ = *p;
|
|
286
|
970
|
|
408
|
971 if (*p == escape_char && escape_char != '"')
|
|
|
972 escape_char_run++;
|
|
|
973 else
|
|
|
974 escape_char_run = 0;
|
|
|
975 }
|
|
|
976 /* double escape chars before enclosing quote */
|
|
|
977 while (escape_char_run > 0)
|
|
|
978 {
|
|
|
979 *parg++ = escape_char;
|
|
|
980 escape_char_run--;
|
|
|
981 }
|
|
|
982 #endif
|
|
|
983 *parg++ = '"';
|
|
|
984 }
|
|
|
985 else
|
|
|
986 {
|
|
|
987 strcpy (parg, targ);
|
|
|
988 parg += strlen (targ);
|
|
|
989 }
|
|
|
990 *parg = '\0';
|
|
|
991 }
|
|
|
992
|
|
|
993 {
|
|
|
994 int total_cmdline_len = 0;
|
|
|
995 Extcount *extargcount = (Extcount *) alloca_array (Extcount, nargv);
|
|
|
996 Extbyte **extarg = (Extbyte **) alloca_array (Extbyte *, nargv);
|
|
|
997 Extbyte *command_ptr;
|
|
|
998
|
|
|
999 for (i = 0; i < nargv; ++i)
|
|
|
1000 {
|
|
|
1001 TO_EXTERNAL_FORMAT (C_STRING, quoted_args[i], ALLOCA,
|
|
|
1002 (extarg[i], extargcount[i]), Qmswindows_tstr);
|
|
|
1003 /* account for space and terminating null */
|
|
|
1004 total_cmdline_len += extargcount[i] + EITCHAR_SIZE;
|
|
|
1005 }
|
|
|
1006
|
|
|
1007 command_line = alloca_array (char, total_cmdline_len);
|
|
|
1008 command_ptr = command_line;
|
|
|
1009 for (i = 0; i < nargv; ++i)
|
|
|
1010 {
|
|
|
1011 memcpy (command_ptr, extarg[i], extargcount[i]);
|
|
|
1012 command_ptr += extargcount[i];
|
|
|
1013 EICOPY_TCHAR (command_ptr, ' ');
|
|
|
1014 command_ptr += EITCHAR_SIZE;
|
|
|
1015 }
|
|
|
1016 EICOPY_TCHAR (command_ptr, '\0');
|
|
|
1017 command_ptr += EITCHAR_SIZE;
|
|
|
1018 }
|
|
274
|
1019 }
|
|
398
|
1020 /* Set `proc_env' to a nul-separated array of the strings in
|
|
|
1021 Vprocess_environment terminated by 2 nuls. */
|
|
|
1022
|
|
|
1023 {
|
|
|
1024 char **env;
|
|
|
1025 REGISTER Lisp_Object tem;
|
|
|
1026 REGISTER char **new_env;
|
|
|
1027 REGISTER int new_length = 0, i, new_space;
|
|
|
1028 char *penv;
|
|
|
1029
|
|
|
1030 for (tem = Vprocess_environment;
|
|
|
1031 (CONSP (tem)
|
|
|
1032 && STRINGP (XCAR (tem)));
|
|
|
1033 tem = XCDR (tem))
|
|
|
1034 new_length++;
|
|
408
|
1035
|
|
|
1036 /* FSF adds an extra env var to hold the current process ID of the
|
|
|
1037 Emacs process. Apparently this is used only by emacsserver.c,
|
|
|
1038 which we have superseded to gnuserv.c. (#### Does it work under
|
|
|
1039 MS Windows?)
|
|
|
1040
|
|
|
1041 sprintf (ppid_env_var_buffer, "EM_PARENT_PROCESS_ID=%d",
|
|
|
1042 GetCurrentProcessId ());
|
|
|
1043 arglen += strlen (ppid_env_var_buffer) + 1;
|
|
|
1044 numenv++;
|
|
|
1045 */
|
|
398
|
1046
|
|
|
1047 /* new_length + 1 to include terminating 0. */
|
|
|
1048 env = new_env = alloca_array (char *, new_length + 1);
|
|
|
1049
|
|
|
1050 /* Copy the Vprocess_environment strings into new_env. */
|
|
|
1051 for (tem = Vprocess_environment;
|
|
|
1052 (CONSP (tem)
|
|
|
1053 && STRINGP (XCAR (tem)));
|
|
|
1054 tem = XCDR (tem))
|
|
|
1055 {
|
|
|
1056 char **ep = env;
|
|
|
1057 char *string = (char *) XSTRING_DATA (XCAR (tem));
|
|
|
1058 /* See if this string duplicates any string already in the env.
|
|
|
1059 If so, don't put it in.
|
|
|
1060 When an env var has multiple definitions,
|
|
|
1061 we keep the definition that comes first in process-environment. */
|
|
|
1062 for (; ep != new_env; ep++)
|
|
|
1063 {
|
|
|
1064 char *p = *ep, *q = string;
|
|
|
1065 while (1)
|
|
|
1066 {
|
|
|
1067 if (*q == 0)
|
|
|
1068 /* The string is malformed; might as well drop it. */
|
|
|
1069 goto duplicate;
|
|
|
1070 if (*q != *p)
|
|
|
1071 break;
|
|
|
1072 if (*q == '=')
|
|
|
1073 goto duplicate;
|
|
|
1074 p++, q++;
|
|
|
1075 }
|
|
|
1076 }
|
|
|
1077 *new_env++ = string;
|
|
|
1078 duplicate: ;
|
|
|
1079 }
|
|
|
1080 *new_env = 0;
|
|
|
1081
|
|
|
1082 /* Sort the environment variables */
|
|
|
1083 new_length = new_env - env;
|
|
|
1084 qsort (env, new_length, sizeof (char *), compare_env);
|
|
|
1085
|
|
|
1086 /* Work out how much space to allocate */
|
|
|
1087 new_space = 0;
|
|
|
1088 for (i = 0; i < new_length; i++)
|
|
|
1089 {
|
|
|
1090 new_space += strlen(env[i]) + 1;
|
|
|
1091 }
|
|
|
1092 new_space++;
|
|
|
1093
|
|
|
1094 /* Allocate space and copy variables into it */
|
|
400
|
1095 penv = proc_env = (char*) alloca(new_space);
|
|
398
|
1096 for (i = 0; i < new_length; i++)
|
|
|
1097 {
|
|
|
1098 strcpy(penv, env[i]);
|
|
|
1099 penv += strlen(env[i]) + 1;
|
|
|
1100 }
|
|
|
1101 *penv = 0;
|
|
|
1102 }
|
|
|
1103
|
|
274
|
1104 /* Create process */
|
|
|
1105 {
|
|
|
1106 STARTUPINFO si;
|
|
|
1107 PROCESS_INFORMATION pi;
|
|
|
1108 DWORD err;
|
|
404
|
1109 DWORD flags;
|
|
274
|
1110
|
|
|
1111 xzero (si);
|
|
278
|
1112 si.dwFlags = STARTF_USESHOWWINDOW;
|
|
|
1113 si.wShowWindow = windowed ? SW_SHOWNORMAL : SW_HIDE;
|
|
|
1114 if (do_io)
|
|
274
|
1115 {
|
|
278
|
1116 si.hStdInput = hprocin;
|
|
|
1117 si.hStdOutput = hprocout;
|
|
398
|
1118 si.hStdError = hprocerr;
|
|
278
|
1119 si.dwFlags |= STARTF_USESTDHANDLES;
|
|
274
|
1120 }
|
|
|
1121
|
|
404
|
1122 flags = CREATE_SUSPENDED;
|
|
|
1123 if (msw_windows9x_p ())
|
|
|
1124 flags |= (!NILP (Vmswindows_start_process_share_console)
|
|
|
1125 ? CREATE_NEW_PROCESS_GROUP
|
|
|
1126 : CREATE_NEW_CONSOLE);
|
|
|
1127 else
|
|
|
1128 flags |= CREATE_NEW_CONSOLE | CREATE_NEW_PROCESS_GROUP;
|
|
|
1129 if (NILP (Vmswindows_start_process_inherit_error_mode))
|
|
|
1130 flags |= CREATE_DEFAULT_ERROR_MODE;
|
|
|
1131
|
|
|
1132 ensure_console_window_exists ();
|
|
|
1133
|
|
|
1134 err = (CreateProcess (NULL, command_line, NULL, NULL, TRUE, flags,
|
|
398
|
1135 proc_env, (char *) XSTRING_DATA (cur_dir), &si, &pi)
|
|
278
|
1136 ? 0 : GetLastError ());
|
|
|
1137
|
|
|
1138 if (do_io)
|
|
274
|
1139 {
|
|
278
|
1140 /* These just have been inherited; we do not need a copy */
|
|
|
1141 CloseHandle (hprocin);
|
|
|
1142 CloseHandle (hprocout);
|
|
398
|
1143 CloseHandle (hprocerr);
|
|
278
|
1144 }
|
|
|
1145
|
|
|
1146 /* Handle process creation failure */
|
|
|
1147 if (err)
|
|
|
1148 {
|
|
|
1149 if (do_io)
|
|
274
|
1150 {
|
|
278
|
1151 CloseHandle (hmyshove);
|
|
|
1152 CloseHandle (hmyslurp);
|
|
274
|
1153 }
|
|
288
|
1154 signal_cannot_launch (program, GetLastError ());
|
|
278
|
1155 }
|
|
274
|
1156
|
|
278
|
1157 /* The process started successfully */
|
|
|
1158 if (do_io)
|
|
|
1159 {
|
|
|
1160 NT_DATA(p)->h_process = pi.hProcess;
|
|
404
|
1161 NT_DATA(p)->dwProcessId = pi.dwProcessId;
|
|
278
|
1162 init_process_io_handles (p, (void*)hmyslurp, (void*)hmyshove, 0);
|
|
274
|
1163 }
|
|
|
1164 else
|
|
|
1165 {
|
|
278
|
1166 /* Indicate as if the process has exited immediately. */
|
|
|
1167 p->status_symbol = Qexit;
|
|
|
1168 CloseHandle (pi.hProcess);
|
|
274
|
1169 }
|
|
|
1170
|
|
280
|
1171 ResumeThread (pi.hThread);
|
|
278
|
1172 CloseHandle (pi.hThread);
|
|
|
1173
|
|
398
|
1174 /* Remember to enable child signals later if this is not a windowed
|
|
|
1175 app. Can't do it right now because that screws up the MKS Toolkit
|
|
|
1176 shell. */
|
|
|
1177 if (!windowed)
|
|
|
1178 {
|
|
|
1179 NT_DATA(p)->need_enable_child_signals = 10;
|
|
|
1180 kick_status_notify ();
|
|
|
1181 }
|
|
|
1182
|
|
|
1183 return ((int)pi.dwProcessId);
|
|
274
|
1184 }
|
|
|
1185 }
|
|
|
1186
|
|
|
1187 /*
|
|
|
1188 * This method is called to update status fields of the process
|
|
|
1189 * structure. If the process has not existed, this method is expected
|
|
|
1190 * to do nothing.
|
|
|
1191 *
|
|
|
1192 * The method is called only for real child processes.
|
|
|
1193 */
|
|
|
1194
|
|
|
1195 static void
|
|
398
|
1196 nt_update_status_if_terminated (Lisp_Process* p)
|
|
274
|
1197 {
|
|
|
1198 DWORD exit_code;
|
|
398
|
1199
|
|
|
1200 if (NT_DATA(p)->need_enable_child_signals > 1)
|
|
|
1201 {
|
|
|
1202 NT_DATA(p)->need_enable_child_signals -= 1;
|
|
|
1203 kick_status_notify ();
|
|
|
1204 }
|
|
|
1205 else if (NT_DATA(p)->need_enable_child_signals == 1)
|
|
|
1206 {
|
|
|
1207 enable_child_signals(NT_DATA(p)->h_process);
|
|
|
1208 NT_DATA(p)->need_enable_child_signals = 0;
|
|
|
1209 }
|
|
|
1210
|
|
274
|
1211 if (GetExitCodeProcess (NT_DATA(p)->h_process, &exit_code)
|
|
|
1212 && exit_code != STILL_ACTIVE)
|
|
|
1213 {
|
|
|
1214 p->tick++;
|
|
|
1215 p->core_dumped = 0;
|
|
|
1216 /* The exit code can be a code returned by process, or an
|
|
|
1217 NTSTATUS value. We cannot accurately handle the latter since
|
|
|
1218 it is a full 32 bit integer */
|
|
|
1219 if (exit_code & 0xC0000000)
|
|
|
1220 {
|
|
|
1221 p->status_symbol = Qsignal;
|
|
|
1222 p->exit_code = exit_code & 0x1FFFFFFF;
|
|
|
1223 }
|
|
|
1224 else
|
|
|
1225 {
|
|
|
1226 p->status_symbol = Qexit;
|
|
|
1227 p->exit_code = exit_code;
|
|
|
1228 }
|
|
|
1229 }
|
|
|
1230 }
|
|
|
1231
|
|
|
1232 /*
|
|
380
|
1233 * Stuff the entire contents of LSTREAM to the process output pipe
|
|
274
|
1234 */
|
|
|
1235
|
|
|
1236 /* #### If only this function could be somehow merged with
|
|
|
1237 unix_send_process... */
|
|
|
1238
|
|
|
1239 static void
|
|
|
1240 nt_send_process (Lisp_Object proc, struct lstream* lstream)
|
|
|
1241 {
|
|
398
|
1242 volatile Lisp_Object vol_proc = proc;
|
|
|
1243 Lisp_Process *volatile p = XPROCESS (proc);
|
|
274
|
1244
|
|
|
1245 /* use a reasonable-sized buffer (somewhere around the size of the
|
|
|
1246 stream buffer) so as to avoid inundating the stream with blocked
|
|
|
1247 data. */
|
|
406
|
1248 Bufbyte chunkbuf[512];
|
|
274
|
1249 Bytecount chunklen;
|
|
|
1250
|
|
|
1251 while (1)
|
|
|
1252 {
|
|
398
|
1253 ssize_t writeret;
|
|
274
|
1254
|
|
406
|
1255 chunklen = Lstream_read (lstream, chunkbuf, 512);
|
|
274
|
1256 if (chunklen <= 0)
|
|
|
1257 break; /* perhaps should abort() if < 0?
|
|
|
1258 This should never happen. */
|
|
|
1259
|
|
|
1260 /* Lstream_write() will never successfully write less than the
|
|
|
1261 amount sent in. In the worst case, it just buffers the
|
|
|
1262 unwritten data. */
|
|
|
1263 writeret = Lstream_write (XLSTREAM (DATA_OUTSTREAM(p)), chunkbuf,
|
|
|
1264 chunklen);
|
|
286
|
1265 Lstream_flush (XLSTREAM (DATA_OUTSTREAM(p)));
|
|
274
|
1266 if (writeret < 0)
|
|
|
1267 {
|
|
|
1268 p->status_symbol = Qexit;
|
|
|
1269 p->exit_code = ERROR_BROKEN_PIPE;
|
|
|
1270 p->core_dumped = 0;
|
|
|
1271 p->tick++;
|
|
|
1272 process_tick++;
|
|
398
|
1273 deactivate_process (*((Lisp_Object *) (&vol_proc)));
|
|
274
|
1274 error ("Broken pipe error sending to process %s; closed it",
|
|
|
1275 XSTRING_DATA (p->name));
|
|
|
1276 }
|
|
|
1277
|
|
286
|
1278 {
|
|
|
1279 int wait_ms = 25;
|
|
|
1280 while (Lstream_was_blocked_p (XLSTREAM (p->pipe_outstream)))
|
|
|
1281 {
|
|
|
1282 /* Buffer is full. Wait, accepting input; that may allow
|
|
|
1283 the program to finish doing output and read more. */
|
|
|
1284 Faccept_process_output (Qnil, Qzero, make_int (wait_ms));
|
|
|
1285 Lstream_flush (XLSTREAM (p->pipe_outstream));
|
|
|
1286 wait_ms = min (1000, 2 * wait_ms);
|
|
|
1287 }
|
|
|
1288 }
|
|
274
|
1289 }
|
|
|
1290 }
|
|
|
1291
|
|
280
|
1292 /*
|
|
|
1293 * Send a signal number SIGNO to PROCESS.
|
|
|
1294 * CURRENT_GROUP means send to the process group that currently owns
|
|
|
1295 * the terminal being used to communicate with PROCESS.
|
|
|
1296 * This is used for various commands in shell mode.
|
|
|
1297 * If NOMSG is zero, insert signal-announcements into process's buffers
|
|
|
1298 * right away.
|
|
|
1299 *
|
|
|
1300 * If we can, we try to signal PROCESS by sending control characters
|
|
|
1301 * down the pty. This allows us to signal inferiors who have changed
|
|
|
1302 * their uid, for which killpg would return an EPERM error.
|
|
|
1303 *
|
|
|
1304 * The method signals an error if the given SIGNO is not valid
|
|
|
1305 */
|
|
|
1306
|
|
|
1307 static void
|
|
|
1308 nt_kill_child_process (Lisp_Object proc, int signo,
|
|
|
1309 int current_group, int nomsg)
|
|
|
1310 {
|
|
398
|
1311 Lisp_Process *p = XPROCESS (proc);
|
|
|
1312
|
|
|
1313 /* Enable child signals if necessary. This may lose the first
|
|
|
1314 but it's better than nothing. */
|
|
404
|
1315 if (NT_DATA (p)->need_enable_child_signals > 0)
|
|
398
|
1316 {
|
|
404
|
1317 enable_child_signals (NT_DATA(p)->h_process);
|
|
|
1318 NT_DATA (p)->need_enable_child_signals = 0;
|
|
398
|
1319 }
|
|
280
|
1320
|
|
|
1321 /* Signal error if SIGNO cannot be sent */
|
|
|
1322 validate_signal_number (signo);
|
|
|
1323
|
|
|
1324 /* Send signal */
|
|
404
|
1325 if (!send_signal (NT_DATA (p), 0, signo))
|
|
|
1326 signal_simple_error ("Cannot send signal to process", proc);
|
|
280
|
1327 }
|
|
|
1328
|
|
|
1329 /*
|
|
408
|
1330 * Kill any process in the system given its PID
|
|
280
|
1331 *
|
|
|
1332 * Returns zero if a signal successfully sent, or
|
|
|
1333 * negative number upon failure
|
|
|
1334 */
|
|
|
1335 static int
|
|
|
1336 nt_kill_process_by_pid (int pid, int signo)
|
|
|
1337 {
|
|
404
|
1338 struct Lisp_Process *p;
|
|
|
1339
|
|
280
|
1340 /* Signal error if SIGNO cannot be sent */
|
|
|
1341 validate_signal_number (signo);
|
|
|
1342
|
|
404
|
1343 p = find_process_from_pid (pid);
|
|
|
1344 return send_signal (p ? NT_DATA (p) : 0, pid, signo) ? 0 : -1;
|
|
280
|
1345 }
|
|
282
|
1346
|
|
|
1347 /*-----------------------------------------------------------------------*/
|
|
|
1348 /* Sockets connections */
|
|
|
1349 /*-----------------------------------------------------------------------*/
|
|
|
1350 #ifdef HAVE_SOCKETS
|
|
280
|
1351
|
|
282
|
1352 /* #### Hey MS, how long Winsock 2 for '95 will be in beta? */
|
|
|
1353
|
|
|
1354 #define SOCK_TIMER_ID 666
|
|
|
1355 #define XM_SOCKREPLY (WM_USER + 666)
|
|
|
1356
|
|
|
1357 static int
|
|
|
1358 get_internet_address (Lisp_Object host, struct sockaddr_in *address,
|
|
|
1359 Error_behavior errb)
|
|
|
1360 {
|
|
|
1361 char buf [MAXGETHOSTSTRUCT];
|
|
|
1362 HWND hwnd;
|
|
|
1363 HANDLE hasync;
|
|
|
1364 int success = 0;
|
|
|
1365
|
|
|
1366 address->sin_family = AF_INET;
|
|
|
1367
|
|
|
1368 /* First check if HOST is already a numeric address */
|
|
|
1369 {
|
|
|
1370 unsigned long inaddr = inet_addr (XSTRING_DATA (host));
|
|
|
1371 if (inaddr != INADDR_NONE)
|
|
|
1372 {
|
|
|
1373 address->sin_addr.s_addr = inaddr;
|
|
|
1374 return 1;
|
|
|
1375 }
|
|
|
1376 }
|
|
|
1377
|
|
|
1378 /* Create a window which will receive completion messages */
|
|
|
1379 hwnd = CreateWindow ("STATIC", NULL, WS_OVERLAPPED, 0, 0, 1, 1,
|
|
|
1380 NULL, NULL, NULL, NULL);
|
|
|
1381 assert (hwnd);
|
|
|
1382
|
|
|
1383 /* Post name resolution request */
|
|
|
1384 hasync = WSAAsyncGetHostByName (hwnd, XM_SOCKREPLY, XSTRING_DATA (host),
|
|
|
1385 buf, sizeof (buf));
|
|
|
1386 if (hasync == NULL)
|
|
|
1387 goto done;
|
|
|
1388
|
|
|
1389 /* Set a timer to poll for quit every 250 ms */
|
|
|
1390 SetTimer (hwnd, SOCK_TIMER_ID, 250, NULL);
|
|
|
1391
|
|
|
1392 while (1)
|
|
|
1393 {
|
|
|
1394 MSG msg;
|
|
|
1395 GetMessage (&msg, hwnd, 0, 0);
|
|
|
1396 if (msg.message == XM_SOCKREPLY)
|
|
|
1397 {
|
|
|
1398 /* Ok, got an answer */
|
|
|
1399 if (WSAGETASYNCERROR(msg.lParam) == NO_ERROR)
|
|
|
1400 success = 1;
|
|
398
|
1401 else
|
|
|
1402 {
|
|
|
1403 warn_when_safe(Qstream, Qwarning,
|
|
|
1404 "cannot get IP address for host \"%s\"",
|
|
|
1405 XSTRING_DATA (host));
|
|
|
1406 }
|
|
282
|
1407 goto done;
|
|
|
1408 }
|
|
|
1409 else if (msg.message == WM_TIMER && msg.wParam == SOCK_TIMER_ID)
|
|
|
1410 {
|
|
|
1411 if (QUITP)
|
|
|
1412 {
|
|
|
1413 WSACancelAsyncRequest (hasync);
|
|
|
1414 KillTimer (hwnd, SOCK_TIMER_ID);
|
|
|
1415 DestroyWindow (hwnd);
|
|
|
1416 REALLY_QUIT;
|
|
|
1417 }
|
|
|
1418 }
|
|
|
1419 DispatchMessage (&msg);
|
|
|
1420 }
|
|
|
1421
|
|
|
1422 done:
|
|
|
1423 KillTimer (hwnd, SOCK_TIMER_ID);
|
|
|
1424 DestroyWindow (hwnd);
|
|
|
1425 if (success)
|
|
|
1426 {
|
|
|
1427 /* BUF starts with struct hostent */
|
|
|
1428 struct hostent* he = (struct hostent*) buf;
|
|
|
1429 address->sin_addr.s_addr = *(unsigned long*)he->h_addr_list[0];
|
|
|
1430 }
|
|
|
1431 return success;
|
|
|
1432 }
|
|
|
1433
|
|
|
1434 static Lisp_Object
|
|
|
1435 nt_canonicalize_host_name (Lisp_Object host)
|
|
|
1436 {
|
|
|
1437 struct sockaddr_in address;
|
|
|
1438
|
|
|
1439 if (!get_internet_address (host, &address, ERROR_ME_NOT))
|
|
|
1440 return host;
|
|
|
1441
|
|
|
1442 if (address.sin_family == AF_INET)
|
|
|
1443 return build_string (inet_ntoa (address.sin_addr));
|
|
|
1444 else
|
|
|
1445 return host;
|
|
|
1446 }
|
|
|
1447
|
|
|
1448 /* open a TCP network connection to a given HOST/SERVICE. Treated
|
|
|
1449 exactly like a normal process when reading and writing. Only
|
|
|
1450 differences are in status display and process deletion. A network
|
|
|
1451 connection has no PID; you cannot signal it. All you can do is
|
|
|
1452 deactivate and close it via delete-process */
|
|
|
1453
|
|
|
1454 static void
|
|
404
|
1455 nt_open_network_stream (Lisp_Object name, Lisp_Object host,
|
|
|
1456 Lisp_Object service,
|
|
398
|
1457 Lisp_Object protocol, void** vinfd, void** voutfd)
|
|
282
|
1458 {
|
|
404
|
1459 /* !!#### not Mule-ized */
|
|
282
|
1460 struct sockaddr_in address;
|
|
|
1461 SOCKET s;
|
|
|
1462 int port;
|
|
|
1463 int retval;
|
|
|
1464
|
|
|
1465 CHECK_STRING (host);
|
|
|
1466
|
|
398
|
1467 if (!EQ (protocol, Qtcp))
|
|
404
|
1468 signal_simple_error ("Unsupported protocol", protocol);
|
|
282
|
1469
|
|
|
1470 if (INTP (service))
|
|
|
1471 port = htons ((unsigned short) XINT (service));
|
|
|
1472 else
|
|
|
1473 {
|
|
|
1474 struct servent *svc_info;
|
|
|
1475 CHECK_STRING (service);
|
|
|
1476 svc_info = getservbyname ((char *) XSTRING_DATA (service), "tcp");
|
|
|
1477 if (svc_info == 0)
|
|
404
|
1478 signal_simple_error ("Unknown service", service);
|
|
282
|
1479 port = svc_info->s_port;
|
|
|
1480 }
|
|
|
1481
|
|
|
1482 get_internet_address (host, &address, ERROR_ME);
|
|
|
1483 address.sin_port = port;
|
|
|
1484
|
|
|
1485 s = socket (address.sin_family, SOCK_STREAM, 0);
|
|
|
1486 if (s < 0)
|
|
|
1487 report_file_error ("error creating socket", list1 (name));
|
|
|
1488
|
|
|
1489 /* We don't want to be blocked on connect */
|
|
|
1490 {
|
|
398
|
1491 unsigned long nonblock = 1;
|
|
282
|
1492 ioctlsocket (s, FIONBIO, &nonblock);
|
|
|
1493 }
|
|
|
1494
|
|
|
1495 retval = connect (s, (struct sockaddr *) &address, sizeof (address));
|
|
|
1496 if (retval != NO_ERROR && WSAGetLastError() != WSAEWOULDBLOCK)
|
|
|
1497 goto connect_failed;
|
|
|
1498 /* Wait while connection is established */
|
|
|
1499 while (1)
|
|
|
1500 {
|
|
|
1501 fd_set fdset;
|
|
|
1502 struct timeval tv;
|
|
|
1503 int nsel;
|
|
|
1504
|
|
|
1505 if (QUITP)
|
|
|
1506 {
|
|
|
1507 closesocket (s);
|
|
|
1508 REALLY_QUIT;
|
|
|
1509 }
|
|
|
1510
|
|
|
1511 /* Poll for quit every 250 ms */
|
|
|
1512 tv.tv_sec = 0;
|
|
|
1513 tv.tv_usec = 250 * 1000;
|
|
|
1514
|
|
|
1515 FD_ZERO (&fdset);
|
|
|
1516 FD_SET (s, &fdset);
|
|
|
1517 nsel = select (0, NULL, &fdset, &fdset, &tv);
|
|
|
1518
|
|
|
1519 if (nsel > 0)
|
|
|
1520 {
|
|
380
|
1521 /* Check: was connection successful or not? */
|
|
282
|
1522 tv.tv_usec = 0;
|
|
|
1523 nsel = select (0, NULL, NULL, &fdset, &tv);
|
|
|
1524 if (nsel > 0)
|
|
|
1525 goto connect_failed;
|
|
|
1526 else
|
|
|
1527 break;
|
|
|
1528 }
|
|
|
1529 }
|
|
|
1530
|
|
|
1531 /* We are connected at this point */
|
|
|
1532 *vinfd = (void*)s;
|
|
|
1533 DuplicateHandle (GetCurrentProcess(), (HANDLE)s,
|
|
|
1534 GetCurrentProcess(), (LPHANDLE)voutfd,
|
|
|
1535 0, FALSE, DUPLICATE_SAME_ACCESS);
|
|
|
1536 return;
|
|
|
1537
|
|
|
1538 connect_failed:
|
|
|
1539 closesocket (s);
|
|
404
|
1540 if (INTP (service))
|
|
|
1541 {
|
|
|
1542 warn_when_safe (Qstream, Qwarning,
|
|
|
1543 "failure to open network stream to host \"%s\" for service \"%d\"",
|
|
|
1544 XSTRING_DATA (host),
|
|
|
1545 (unsigned short) XINT (service));
|
|
|
1546 }
|
|
|
1547 else
|
|
|
1548 {
|
|
|
1549 warn_when_safe (Qstream, Qwarning,
|
|
|
1550 "failure to open network stream to host \"%s\" for service \"%s\"",
|
|
|
1551 XSTRING_DATA (host),
|
|
|
1552 XSTRING_DATA (service));
|
|
|
1553 }
|
|
282
|
1554 report_file_error ("connection failed", list2 (host, name));
|
|
|
1555 }
|
|
|
1556
|
|
|
1557 #endif
|
|
280
|
1558
|
|
274
|
1559 /*-----------------------------------------------------------------------*/
|
|
|
1560 /* Initialization */
|
|
|
1561 /*-----------------------------------------------------------------------*/
|
|
|
1562
|
|
|
1563 void
|
|
|
1564 process_type_create_nt (void)
|
|
|
1565 {
|
|
|
1566 PROCESS_HAS_METHOD (nt, alloc_process_data);
|
|
|
1567 PROCESS_HAS_METHOD (nt, finalize_process_data);
|
|
282
|
1568 PROCESS_HAS_METHOD (nt, init_process);
|
|
274
|
1569 PROCESS_HAS_METHOD (nt, create_process);
|
|
|
1570 PROCESS_HAS_METHOD (nt, update_status_if_terminated);
|
|
|
1571 PROCESS_HAS_METHOD (nt, send_process);
|
|
280
|
1572 PROCESS_HAS_METHOD (nt, kill_child_process);
|
|
|
1573 PROCESS_HAS_METHOD (nt, kill_process_by_pid);
|
|
274
|
1574 #ifdef HAVE_SOCKETS
|
|
|
1575 PROCESS_HAS_METHOD (nt, canonicalize_host_name);
|
|
|
1576 PROCESS_HAS_METHOD (nt, open_network_stream);
|
|
|
1577 #ifdef HAVE_MULTICAST
|
|
282
|
1578 #error I won't do this until '95 has winsock2
|
|
274
|
1579 PROCESS_HAS_METHOD (nt, open_multicast_group);
|
|
|
1580 #endif
|
|
|
1581 #endif
|
|
|
1582 }
|
|
|
1583
|
|
|
1584 void
|
|
286
|
1585 syms_of_process_nt (void)
|
|
|
1586 {
|
|
|
1587 }
|
|
|
1588
|
|
|
1589 void
|
|
274
|
1590 vars_of_process_nt (void)
|
|
|
1591 {
|
|
408
|
1592 DEFVAR_LISP ("mswindows-quote-process-args",
|
|
|
1593 &Vmswindows_quote_process_args /*
|
|
|
1594 Non-nil enables quoting of process arguments to ensure correct parsing.
|
|
|
1595 Because Windows does not directly pass argv arrays to child processes,
|
|
|
1596 programs have to reconstruct the argv array by parsing the command
|
|
|
1597 line string. For an argument to contain a space, it must be enclosed
|
|
|
1598 in double quotes or it will be parsed as multiple arguments.
|
|
|
1599
|
|
|
1600 If the value is a character, that character will be used to escape any
|
|
|
1601 quote characters that appear, otherwise a suitable escape character
|
|
|
1602 will be chosen based on the type of the program (normal or Cygwin).
|
|
|
1603 */ );
|
|
|
1604 Vmswindows_quote_process_args = Qt;
|
|
|
1605
|
|
404
|
1606 DEFVAR_LISP ("mswindows-start-process-share-console",
|
|
|
1607 &Vmswindows_start_process_share_console /*
|
|
|
1608 When nil, new child processes are given a new console.
|
|
|
1609 When non-nil, they share the Emacs console; this has the limitation of
|
|
|
1610 allowing only only DOS subprocess to run at a time (whether started directly
|
|
|
1611 or indirectly by Emacs), and preventing Emacs from cleanly terminating the
|
|
|
1612 subprocess group, but may allow Emacs to interrupt a subprocess that doesn't
|
|
|
1613 otherwise respond to interrupts from Emacs.
|
|
|
1614 */ );
|
|
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1615 Vmswindows_start_process_share_console = Qnil;
|
|
|
1616
|
|
|
1617 DEFVAR_LISP ("mswindows-start-process-inherit-error-mode",
|
|
|
1618 &Vmswindows_start_process_inherit_error_mode /*
|
|
|
1619 "When nil, new child processes revert to the default error mode.
|
|
|
1620 When non-nil, they inherit their error mode setting from Emacs, which stops
|
|
|
1621 them blocking when trying to access unmounted drives etc.
|
|
|
1622 */ );
|
|
|
1623 Vmswindows_start_process_inherit_error_mode = Qt;
|
|
274
|
1624 }
|
