Commit | Line | Data |
6ad90ad2 |
1 | /* |
0198fd3c |
2 | * os_win32.c -- |
3 | * |
4 | * |
5 | * Copyright (c) 1995 Open Market, Inc. |
6 | * All rights reserved. |
7 | * |
8 | * This file contains proprietary and confidential information and |
6ad90ad2 |
9 | * remains the unpublished property of Open Market, Inc. Use, |
10 | * disclosure, or reproduction is prohibited except as permitted by |
11 | * express written license agreement with Open Market, Inc. |
0198fd3c |
12 | * |
13 | * Bill Snapper |
14 | * snapper@openmarket.com |
15 | * |
16 | * (Special thanks to Karen and Bill. They made my job much easier and |
17 | * significantly more enjoyable.) |
18 | */ |
0198fd3c |
19 | #ifndef lint |
a2252853 |
20 | static const char rcsid[] = "$Id: os_win32.c,v 1.21 2001/08/27 19:54:30 robs Exp $"; |
0198fd3c |
21 | #endif /* not lint */ |
22 | |
9bbd33f9 |
23 | #define WIN32_LEAN_AND_MEAN |
24 | #include <windows.h> |
25 | #include <winsock2.h> |
26 | #include <stdlib.h> |
0198fd3c |
27 | #include <assert.h> |
6ad90ad2 |
28 | #include <stdio.h> |
0198fd3c |
29 | #include <sys/timeb.h> |
30 | |
9bbd33f9 |
31 | #define DLLAPI __declspec(dllexport) |
33c47d40 |
32 | |
9bbd33f9 |
33 | #include "fcgimisc.h" |
33c47d40 |
34 | #include "fcgios.h" |
0198fd3c |
35 | |
87abe107 |
36 | #define WIN32_OPEN_MAX 128 /* XXX: Small hack */ |
a6b4e4d4 |
37 | |
9bbd33f9 |
38 | /* |
39 | * millisecs to wait for a client connection before checking the |
40 | * shutdown flag (then go back to waiting for a connection, etc). |
41 | */ |
42 | #define ACCEPT_TIMEOUT 1000 |
43 | |
6ad90ad2 |
44 | #define MUTEX_VARNAME "_FCGI_MUTEX_" |
87abe107 |
45 | #define SHUTDOWN_EVENT_NAME "_FCGI_SHUTDOWN_EVENT_" |
a6b4e4d4 |
46 | #define LOCALHOST "localhost" |
6ad90ad2 |
47 | |
0198fd3c |
48 | static HANDLE hIoCompPort = INVALID_HANDLE_VALUE; |
49 | static HANDLE hStdinCompPort = INVALID_HANDLE_VALUE; |
50 | static HANDLE hStdinThread = INVALID_HANDLE_VALUE; |
51 | |
52 | static HANDLE stdioHandles[3] = {INVALID_HANDLE_VALUE, INVALID_HANDLE_VALUE, |
53 | INVALID_HANDLE_VALUE}; |
54 | |
87abe107 |
55 | static HANDLE acceptMutex = INVALID_HANDLE_VALUE; |
56 | |
57 | static BOOLEAN shutdownPending = FALSE; |
0198fd3c |
58 | |
6ad90ad2 |
59 | /* |
0198fd3c |
60 | * An enumeration of the file types |
61 | * supported by the FD_TABLE structure. |
62 | * |
63 | * XXX: Not all currently supported. This allows for future |
64 | * functionality. |
65 | */ |
66 | typedef enum { |
67 | FD_UNUSED, |
68 | FD_FILE_SYNC, |
69 | FD_FILE_ASYNC, |
70 | FD_SOCKET_SYNC, |
71 | FD_SOCKET_ASYNC, |
72 | FD_PIPE_SYNC, |
73 | FD_PIPE_ASYNC |
74 | } FILE_TYPE; |
75 | |
76 | typedef union { |
77 | HANDLE fileHandle; |
78 | SOCKET sock; |
79 | unsigned int value; |
80 | } DESCRIPTOR; |
81 | |
6ad90ad2 |
82 | /* |
0198fd3c |
83 | * Structure used to map file handle and socket handle |
84 | * values into values that can be used to create unix-like |
85 | * select bitmaps, read/write for both sockets/files. |
86 | */ |
87 | struct FD_TABLE { |
88 | DESCRIPTOR fid; |
89 | FILE_TYPE type; |
90 | char *path; |
91 | DWORD Errno; |
92 | unsigned long instance; |
93 | int status; |
94 | int offset; /* only valid for async file writes */ |
95 | LPDWORD offsetHighPtr; /* pointers to offset high and low words */ |
96 | LPDWORD offsetLowPtr; /* only valid for async file writes (logs) */ |
97 | HANDLE hMapMutex; /* mutex handle for multi-proc offset update */ |
98 | LPVOID ovList; /* List of associated OVERLAPPED_REQUESTs */ |
99 | }; |
100 | |
364045ff |
101 | /* |
102 | * XXX Note there is no dyanmic sizing of this table, so if the |
103 | * number of open file descriptors exceeds WIN32_OPEN_MAX the |
104 | * app will blow up. |
105 | */ |
0198fd3c |
106 | static struct FD_TABLE fdTable[WIN32_OPEN_MAX]; |
107 | |
73389ec2 |
108 | static CRITICAL_SECTION fdTableCritical; |
109 | |
0198fd3c |
110 | struct OVERLAPPED_REQUEST { |
111 | OVERLAPPED overlapped; |
112 | unsigned long instance; /* file instance (won't match after a close) */ |
113 | OS_AsyncProc procPtr; /* callback routine */ |
114 | ClientData clientData; /* callback argument */ |
115 | ClientData clientData1; /* additional clientData */ |
116 | }; |
117 | typedef struct OVERLAPPED_REQUEST *POVERLAPPED_REQUEST; |
118 | |
119 | static const char *bindPathPrefix = "\\\\.\\pipe\\FastCGI\\"; |
120 | |
a2252853 |
121 | static FILE_TYPE listenType = FD_UNUSED; |
87abe107 |
122 | |
123 | // XXX This should be a DESCRIPTOR |
0198fd3c |
124 | static HANDLE hListen = INVALID_HANDLE_VALUE; |
87abe107 |
125 | |
126 | static OVERLAPPED listenOverlapped; |
127 | static BOOLEAN libInitialized = FALSE; |
0198fd3c |
128 | |
0198fd3c |
129 | /* |
130 | *-------------------------------------------------------------- |
131 | * |
132 | * Win32NewDescriptor -- |
133 | * |
134 | * Set up for I/O descriptor masquerading. |
135 | * |
136 | * Results: |
137 | * Returns "fake id" which masquerades as a UNIX-style "small |
138 | * non-negative integer" file/socket descriptor. |
139 | * Win32_* routine below will "do the right thing" based on the |
140 | * descriptor's actual type. -1 indicates failure. |
141 | * |
142 | * Side effects: |
143 | * Entry in fdTable is reserved to represent the socket/file. |
144 | * |
145 | *-------------------------------------------------------------- |
146 | */ |
147 | static int Win32NewDescriptor(FILE_TYPE type, int fd, int desiredFd) |
148 | { |
73389ec2 |
149 | int index = -1; |
150 | |
151 | EnterCriticalSection(&fdTableCritical); |
0198fd3c |
152 | |
153 | /* |
73389ec2 |
154 | * If desiredFd is set, try to get this entry (this is used for |
155 | * mapping stdio handles). Otherwise try to get the fd entry. |
156 | * If this is not available, find a the first empty slot. . |
0198fd3c |
157 | */ |
87abe107 |
158 | if (desiredFd >= 0 && desiredFd < WIN32_OPEN_MAX) |
159 | { |
73389ec2 |
160 | if (fdTable[desiredFd].type == FD_UNUSED) |
87abe107 |
161 | { |
73389ec2 |
162 | index = desiredFd; |
87abe107 |
163 | } |
0198fd3c |
164 | } |
26c9b575 |
165 | else if (fd > 0) |
87abe107 |
166 | { |
26c9b575 |
167 | if (fd < WIN32_OPEN_MAX && fdTable[fd].type == FD_UNUSED) |
87abe107 |
168 | { |
26c9b575 |
169 | index = fd; |
170 | } |
171 | else |
172 | { |
173 | int i; |
73389ec2 |
174 | |
26c9b575 |
175 | for (i = 1; i < WIN32_OPEN_MAX; ++i) |
176 | { |
177 | if (fdTable[i].type == FD_UNUSED) |
73389ec2 |
178 | { |
26c9b575 |
179 | index = i; |
180 | break; |
73389ec2 |
181 | } |
87abe107 |
182 | } |
183 | } |
0198fd3c |
184 | } |
73389ec2 |
185 | |
186 | if (index != -1) |
187 | { |
188 | fdTable[index].fid.value = fd; |
189 | fdTable[index].type = type; |
190 | fdTable[index].path = NULL; |
191 | fdTable[index].Errno = NO_ERROR; |
192 | fdTable[index].status = 0; |
193 | fdTable[index].offset = -1; |
194 | fdTable[index].offsetHighPtr = fdTable[index].offsetLowPtr = NULL; |
195 | fdTable[index].hMapMutex = NULL; |
196 | fdTable[index].ovList = NULL; |
197 | } |
0198fd3c |
198 | |
73389ec2 |
199 | LeaveCriticalSection(&fdTableCritical); |
0198fd3c |
200 | return index; |
201 | } |
62e100c7 |
202 | |
0198fd3c |
203 | /* |
204 | *-------------------------------------------------------------- |
205 | * |
206 | * StdinThread-- |
207 | * |
208 | * This thread performs I/O on stadard input. It is needed |
209 | * because you can't guarantee that all applications will |
210 | * create standard input with sufficient access to perform |
211 | * asynchronous I/O. Since we don't want to block the app |
6ad90ad2 |
212 | * reading from stdin we make it look like it's using I/O |
0198fd3c |
213 | * completion ports to perform async I/O. |
214 | * |
215 | * Results: |
216 | * Data is read from stdin and posted to the io completion |
217 | * port. |
218 | * |
219 | * Side effects: |
220 | * None. |
221 | * |
222 | *-------------------------------------------------------------- |
223 | */ |
224 | static void StdinThread(LPDWORD startup){ |
225 | |
226 | int doIo = TRUE; |
bf00339b |
227 | unsigned long fd; |
228 | unsigned long bytesRead; |
0198fd3c |
229 | POVERLAPPED_REQUEST pOv; |
6ad90ad2 |
230 | |
bf00339b |
231 | // Touch the arg to prevent warning |
232 | startup = NULL; |
233 | |
0198fd3c |
234 | while(doIo) { |
235 | /* |
236 | * Block until a request to read from stdin comes in or a |
237 | * request to terminate the thread arrives (fd = -1). |
238 | */ |
239 | if (!GetQueuedCompletionStatus(hStdinCompPort, &bytesRead, &fd, |
240 | (LPOVERLAPPED *)&pOv, (DWORD)-1) && !pOv) { |
241 | doIo = 0; |
242 | break; |
243 | } |
6ad90ad2 |
244 | |
0198fd3c |
245 | ASSERT((fd == STDIN_FILENO) || (fd == -1)); |
246 | if(fd == -1) { |
247 | doIo = 0; |
248 | break; |
249 | } |
250 | ASSERT(pOv->clientData1 != NULL); |
251 | |
252 | if(ReadFile(stdioHandles[STDIN_FILENO], pOv->clientData1, bytesRead, |
253 | &bytesRead, NULL)) { |
6ad90ad2 |
254 | PostQueuedCompletionStatus(hIoCompPort, bytesRead, |
0198fd3c |
255 | STDIN_FILENO, (LPOVERLAPPED)pOv); |
256 | } else { |
257 | doIo = 0; |
258 | break; |
259 | } |
260 | } |
261 | |
262 | ExitThread(0); |
263 | } |
264 | |
87abe107 |
265 | static DWORD WINAPI ShutdownRequestThread(LPVOID arg) |
266 | { |
267 | HANDLE shutdownEvent = (HANDLE) arg; |
268 | |
269 | if (WaitForSingleObject(shutdownEvent, INFINITE) == WAIT_FAILED) |
270 | { |
271 | // Assuming it will happen again, all we can do is exit the thread |
bf00339b |
272 | return 1; |
87abe107 |
273 | } |
274 | else |
275 | { |
276 | // "Simple reads and writes to properly-aligned 32-bit variables are atomic" |
277 | shutdownPending = TRUE; |
278 | |
279 | // Before an accept() is entered the shutdownPending flag is checked. |
280 | // If set, OS_Accept() will return -1. If not, it waits |
281 | // on a connection request for one second, checks the flag, & repeats. |
282 | // Only one process/thread is allowed to do this at time by |
283 | // wrapping the accept() with mutex. |
284 | return 0; |
285 | } |
286 | } |
287 | |
0198fd3c |
288 | /* |
289 | *-------------------------------------------------------------- |
290 | * |
291 | * OS_LibInit -- |
292 | * |
293 | * Set up the OS library for use. |
294 | * |
295 | * Results: |
296 | * Returns 0 if success, -1 if not. |
297 | * |
298 | * Side effects: |
299 | * Sockets initialized, pseudo file descriptors setup, etc. |
300 | * |
301 | *-------------------------------------------------------------- |
302 | */ |
303 | int OS_LibInit(int stdioFds[3]) |
304 | { |
305 | WORD wVersion; |
306 | WSADATA wsaData; |
307 | int err; |
308 | int fakeFd; |
0198fd3c |
309 | DWORD threadId; |
310 | char *cLenPtr = NULL; |
87abe107 |
311 | char *val = NULL; |
312 | |
0198fd3c |
313 | if(libInitialized) |
314 | return 0; |
315 | |
73389ec2 |
316 | InitializeCriticalSection(&fdTableCritical); |
317 | |
0198fd3c |
318 | /* |
319 | * Initialize windows sockets library. |
320 | */ |
87abe107 |
321 | wVersion = MAKEWORD(2,0); |
0198fd3c |
322 | err = WSAStartup( wVersion, &wsaData ); |
323 | if (err) { |
324 | fprintf(stderr, "Error starting Windows Sockets. Error: %d", |
325 | WSAGetLastError()); |
326 | exit(111); |
327 | } |
328 | |
329 | /* |
330 | * Create the I/O completion port to be used for our I/O queue. |
331 | */ |
332 | if (hIoCompPort == INVALID_HANDLE_VALUE) { |
333 | hIoCompPort = CreateIoCompletionPort (INVALID_HANDLE_VALUE, NULL, |
334 | 0, 1); |
335 | if(hIoCompPort == INVALID_HANDLE_VALUE) { |
336 | printf("<H2>OS_LibInit Failed CreateIoCompletionPort! ERROR: %d</H2>\r\n\r\n", |
337 | GetLastError()); |
338 | return -1; |
339 | } |
340 | } |
341 | |
342 | /* |
87abe107 |
343 | * If a shutdown event is in the env, save it (I don't see any to |
344 | * remove it from the environment out from under the application). |
345 | * Spawn a thread to wait on the shutdown request. |
346 | */ |
347 | val = getenv(SHUTDOWN_EVENT_NAME); |
348 | if (val != NULL) |
349 | { |
350 | HANDLE shutdownEvent = (HANDLE) atoi(val); |
351 | |
87abe107 |
352 | if (! CreateThread(NULL, 0, ShutdownRequestThread, |
353 | shutdownEvent, 0, NULL)) |
354 | { |
355 | return -1; |
356 | } |
357 | } |
358 | |
359 | /* |
360 | * If an accept mutex is in the env, save it and remove it. |
361 | */ |
362 | val = getenv(MUTEX_VARNAME); |
363 | if (val != NULL) |
364 | { |
365 | acceptMutex = (HANDLE) atoi(val); |
366 | } |
367 | |
368 | |
369 | /* |
0198fd3c |
370 | * Determine if this library is being used to listen for FastCGI |
371 | * connections. This is communicated by STDIN containing a |
372 | * valid handle to a listener object. In this case, both the |
373 | * "stdout" and "stderr" handles will be INVALID (ie. closed) by |
374 | * the starting process. |
375 | * |
376 | * The trick is determining if this is a pipe or a socket... |
377 | * |
378 | * XXX: Add the async accept test to determine socket or handle to a |
379 | * pipe!!! |
380 | */ |
381 | if((GetStdHandle(STD_OUTPUT_HANDLE) == INVALID_HANDLE_VALUE) && |
382 | (GetStdHandle(STD_ERROR_HANDLE) == INVALID_HANDLE_VALUE) && |
87abe107 |
383 | (GetStdHandle(STD_INPUT_HANDLE) != INVALID_HANDLE_VALUE) ) |
384 | { |
385 | DWORD pipeMode = PIPE_READMODE_BYTE | PIPE_WAIT; |
386 | HANDLE oldStdIn = GetStdHandle(STD_INPUT_HANDLE); |
387 | |
388 | // Move the handle to a "low" number |
389 | if (! DuplicateHandle(GetCurrentProcess(), oldStdIn, |
390 | GetCurrentProcess(), &hListen, |
391 | 0, TRUE, DUPLICATE_SAME_ACCESS)) |
392 | { |
393 | return -1; |
394 | } |
0198fd3c |
395 | |
87abe107 |
396 | if (! SetStdHandle(STD_INPUT_HANDLE, hListen)) |
397 | { |
398 | return -1; |
399 | } |
400 | |
401 | CloseHandle(oldStdIn); |
0198fd3c |
402 | |
403 | /* |
404 | * Set the pipe handle state so that it operates in wait mode. |
405 | * |
406 | * NOTE: The listenFd is not mapped to a pseudo file descriptor |
407 | * as all work done on it is contained to the OS library. |
408 | * |
409 | * XXX: Initial assumption is that SetNamedPipeHandleState will |
410 | * fail if this is an IP socket... |
411 | */ |
87abe107 |
412 | if (SetNamedPipeHandleState(hListen, &pipeMode, NULL, NULL)) |
413 | { |
0198fd3c |
414 | listenType = FD_PIPE_SYNC; |
87abe107 |
415 | listenOverlapped.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
416 | } |
417 | else |
418 | { |
0198fd3c |
419 | listenType = FD_SOCKET_SYNC; |
420 | } |
421 | } |
422 | |
423 | /* |
424 | * If there are no stdioFds passed in, we're done. |
425 | */ |
426 | if(stdioFds == NULL) { |
427 | libInitialized = 1; |
428 | return 0; |
429 | } |
6ad90ad2 |
430 | |
0198fd3c |
431 | /* |
432 | * Setup standard input asynchronous I/O. There is actually a separate |
433 | * thread spawned for this purpose. The reason for this is that some |
434 | * web servers use anonymous pipes for the connection between itself |
435 | * and a CGI application. Anonymous pipes can't perform asynchronous |
436 | * I/O or use I/O completion ports. Therefore in order to present a |
437 | * consistent I/O dispatch model to an application we emulate I/O |
438 | * completion port behavior by having the standard input thread posting |
439 | * messages to the hIoCompPort which look like a complete overlapped |
440 | * I/O structure. This keeps the event dispatching simple from the |
441 | * application perspective. |
442 | */ |
443 | stdioHandles[STDIN_FILENO] = GetStdHandle(STD_INPUT_HANDLE); |
444 | |
445 | if(!SetHandleInformation(stdioHandles[STDIN_FILENO], |
446 | HANDLE_FLAG_INHERIT, 0)) { |
447 | /* |
448 | * XXX: Causes error when run from command line. Check KB |
449 | err = GetLastError(); |
450 | DebugBreak(); |
451 | exit(99); |
452 | */ |
453 | } |
454 | |
455 | if ((fakeFd = Win32NewDescriptor(FD_PIPE_SYNC, |
456 | (int)stdioHandles[STDIN_FILENO], |
457 | STDIN_FILENO)) == -1) { |
458 | return -1; |
459 | } else { |
460 | /* |
461 | * Set stdin equal to our pseudo FD and create the I/O completion |
462 | * port to be used for async I/O. |
463 | */ |
464 | stdioFds[STDIN_FILENO] = fakeFd; |
465 | } |
466 | |
467 | /* |
468 | * Create the I/O completion port to be used for communicating with |
469 | * the thread doing I/O on standard in. This port will carry read |
470 | * and possibly thread termination requests to the StdinThread. |
471 | */ |
472 | if (hStdinCompPort == INVALID_HANDLE_VALUE) { |
473 | hStdinCompPort = CreateIoCompletionPort (INVALID_HANDLE_VALUE, NULL, |
474 | 0, 1); |
475 | if(hStdinCompPort == INVALID_HANDLE_VALUE) { |
476 | printf("<H2>OS_LibInit Failed CreateIoCompletionPort: STDIN! ERROR: %d</H2>\r\n\r\n", |
477 | GetLastError()); |
478 | return -1; |
479 | } |
480 | } |
481 | |
6ad90ad2 |
482 | /* |
0198fd3c |
483 | * Create the thread that will read stdin if the CONTENT_LENGTH |
484 | * is non-zero. |
485 | */ |
486 | if((cLenPtr = getenv("CONTENT_LENGTH")) != NULL && |
487 | atoi(cLenPtr) > 0) { |
488 | hStdinThread = CreateThread(NULL, 8192, |
489 | (LPTHREAD_START_ROUTINE)&StdinThread, |
490 | NULL, 0, &threadId); |
491 | if (hStdinThread == NULL) { |
492 | printf("<H2>OS_LibInit Failed to create STDIN thread! ERROR: %d</H2>\r\n\r\n", |
493 | GetLastError()); |
494 | return -1; |
495 | } |
496 | } |
497 | |
498 | /* |
499 | * STDOUT will be used synchronously. |
500 | * |
501 | * XXX: May want to convert this so that it could be used for OVERLAPPED |
502 | * I/O later. If so, model it after the Stdin I/O as stdout is |
503 | * also incapable of async I/O on some servers. |
504 | */ |
505 | stdioHandles[STDOUT_FILENO] = GetStdHandle(STD_OUTPUT_HANDLE); |
506 | if(!SetHandleInformation(stdioHandles[STDOUT_FILENO], |
507 | HANDLE_FLAG_INHERIT, FALSE)) { |
508 | DebugBreak(); |
509 | exit(99); |
510 | } |
511 | |
512 | if ((fakeFd = Win32NewDescriptor(FD_PIPE_SYNC, |
513 | (int)stdioHandles[STDOUT_FILENO], |
514 | STDOUT_FILENO)) == -1) { |
515 | return -1; |
516 | } else { |
517 | /* |
518 | * Set stdout equal to our pseudo FD |
519 | */ |
520 | stdioFds[STDOUT_FILENO] = fakeFd; |
521 | } |
522 | |
523 | stdioHandles[STDERR_FILENO] = GetStdHandle(STD_ERROR_HANDLE); |
524 | if(!SetHandleInformation(stdioHandles[STDERR_FILENO], |
525 | HANDLE_FLAG_INHERIT, FALSE)) { |
526 | DebugBreak(); |
527 | exit(99); |
528 | } |
529 | if ((fakeFd = Win32NewDescriptor(FD_PIPE_SYNC, |
530 | (int)stdioHandles[STDERR_FILENO], |
531 | STDERR_FILENO)) == -1) { |
532 | return -1; |
533 | } else { |
534 | /* |
535 | * Set stderr equal to our pseudo FD |
536 | */ |
537 | stdioFds[STDERR_FILENO] = fakeFd; |
538 | } |
539 | |
540 | return 0; |
541 | } |
542 | |
0198fd3c |
543 | /* |
544 | *-------------------------------------------------------------- |
545 | * |
546 | * OS_LibShutdown -- |
547 | * |
548 | * Shutdown the OS library. |
549 | * |
550 | * Results: |
551 | * None. |
552 | * |
553 | * Side effects: |
554 | * Memory freed, handles closed. |
555 | * |
556 | *-------------------------------------------------------------- |
557 | */ |
558 | void OS_LibShutdown() |
559 | { |
560 | |
9bbd33f9 |
561 | if (hIoCompPort != INVALID_HANDLE_VALUE) |
562 | { |
0198fd3c |
563 | CloseHandle(hIoCompPort); |
9bbd33f9 |
564 | hIoCompPort = INVALID_HANDLE_VALUE; |
0198fd3c |
565 | } |
566 | |
9bbd33f9 |
567 | if (hStdinCompPort != INVALID_HANDLE_VALUE) |
568 | { |
0198fd3c |
569 | CloseHandle(hStdinCompPort); |
9bbd33f9 |
570 | hStdinCompPort = INVALID_HANDLE_VALUE; |
0198fd3c |
571 | } |
572 | |
9bbd33f9 |
573 | if (acceptMutex != INVALID_HANDLE_VALUE) |
574 | { |
575 | ReleaseMutex(acceptMutex); |
576 | } |
577 | |
578 | DisconnectNamedPipe(hListen); |
579 | |
580 | CancelIo(hListen); |
581 | |
582 | |
0198fd3c |
583 | WSACleanup(); |
0198fd3c |
584 | } |
585 | |
0198fd3c |
586 | /* |
587 | *-------------------------------------------------------------- |
588 | * |
589 | * Win32FreeDescriptor -- |
590 | * |
591 | * Free I/O descriptor entry in fdTable. |
592 | * |
593 | * Results: |
594 | * Frees I/O descriptor entry in fdTable. |
595 | * |
596 | * Side effects: |
597 | * None. |
598 | * |
599 | *-------------------------------------------------------------- |
600 | */ |
601 | static void Win32FreeDescriptor(int fd) |
602 | { |
603 | /* Catch it if fd is a bogus value */ |
604 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
0198fd3c |
605 | |
73389ec2 |
606 | EnterCriticalSection(&fdTableCritical); |
607 | |
608 | if (fdTable[fd].type != FD_UNUSED) |
609 | { |
610 | switch (fdTable[fd].type) |
611 | { |
612 | case FD_FILE_SYNC: |
613 | case FD_FILE_ASYNC: |
614 | |
615 | /* Free file path string */ |
616 | ASSERT(fdTable[fd].path != NULL); |
617 | free(fdTable[fd].path); |
618 | fdTable[fd].path = NULL; |
619 | break; |
620 | |
621 | default: |
622 | break; |
623 | } |
624 | |
625 | ASSERT(fdTable[fd].path == NULL); |
626 | |
627 | fdTable[fd].type = FD_UNUSED; |
628 | fdTable[fd].path = NULL; |
629 | fdTable[fd].Errno = NO_ERROR; |
630 | fdTable[fd].offsetHighPtr = fdTable[fd].offsetLowPtr = NULL; |
631 | |
632 | if (fdTable[fd].hMapMutex != NULL) |
633 | { |
634 | CloseHandle(fdTable[fd].hMapMutex); |
635 | fdTable[fd].hMapMutex = NULL; |
636 | } |
0198fd3c |
637 | } |
73389ec2 |
638 | |
639 | LeaveCriticalSection(&fdTableCritical); |
640 | |
0198fd3c |
641 | return; |
642 | } |
643 | |
a6b4e4d4 |
644 | static short getPort(const char * bindPath) |
645 | { |
646 | short port = 0; |
647 | char * p = strchr(bindPath, ':'); |
648 | |
649 | if (p && *++p) |
650 | { |
651 | char buf[6]; |
652 | |
653 | strncpy(buf, p, 6); |
654 | buf[5] = '\0'; |
655 | |
bf00339b |
656 | port = (short) atoi(buf); |
a6b4e4d4 |
657 | } |
658 | |
659 | return port; |
660 | } |
661 | |
0198fd3c |
662 | /* |
663 | * OS_CreateLocalIpcFd -- |
664 | * |
665 | * This procedure is responsible for creating the listener pipe |
666 | * on Windows NT for local process communication. It will create a |
667 | * named pipe and return a file descriptor to it to the caller. |
668 | * |
669 | * Results: |
670 | * Listener pipe created. This call returns either a valid |
671 | * pseudo file descriptor or -1 on error. |
672 | * |
673 | * Side effects: |
674 | * Listener pipe and IPC address are stored in the FCGI info |
675 | * structure. |
676 | * 'errno' will set on errors (-1 is returned). |
677 | * |
678 | *---------------------------------------------------------------------- |
679 | */ |
0b7c9662 |
680 | int OS_CreateLocalIpcFd(const char *bindPath, int backlog) |
0198fd3c |
681 | { |
a6b4e4d4 |
682 | int pseudoFd = -1; |
683 | short port = getPort(bindPath); |
87abe107 |
684 | HANDLE mutex = CreateMutex(NULL, FALSE, NULL); |
a6b4e4d4 |
685 | char * mutexEnvString; |
6ad90ad2 |
686 | |
87abe107 |
687 | if (mutex == NULL) |
688 | { |
689 | return -1; |
690 | } |
691 | |
692 | if (! SetHandleInformation(mutex, HANDLE_FLAG_INHERIT, TRUE)) |
693 | { |
694 | return -1; |
695 | } |
696 | |
697 | // This is a nail for listening to more than one port.. |
698 | // This should really be handled by the caller. |
87abe107 |
699 | |
a6b4e4d4 |
700 | mutexEnvString = malloc(strlen(MUTEX_VARNAME) + 7); |
701 | sprintf(mutexEnvString, MUTEX_VARNAME "=%d", (int) mutex); |
702 | putenv(mutexEnvString); |
87abe107 |
703 | |
a6b4e4d4 |
704 | // There's nothing to be gained (at the moment) by a shutdown Event |
87abe107 |
705 | |
a6b4e4d4 |
706 | if (port && *bindPath != ':' && strncmp(bindPath, LOCALHOST, strlen(LOCALHOST))) |
707 | { |
708 | fprintf(stderr, "To start a service on a TCP port can not " |
709 | "specify a host name.\n" |
710 | "You should either use \"localhost:<port>\" or " |
711 | " just use \":<port>.\"\n"); |
712 | exit(1); |
0198fd3c |
713 | } |
a6b4e4d4 |
714 | |
715 | listenType = (port) ? FD_SOCKET_SYNC : FD_PIPE_ASYNC; |
87abe107 |
716 | |
a6b4e4d4 |
717 | if (port) |
718 | { |
719 | SOCKET listenSock; |
720 | struct sockaddr_in sockAddr; |
721 | int sockLen = sizeof(sockAddr); |
722 | |
723 | memset(&sockAddr, 0, sizeof(sockAddr)); |
724 | sockAddr.sin_family = AF_INET; |
725 | sockAddr.sin_addr.s_addr = htonl(INADDR_ANY); |
726 | sockAddr.sin_port = htons(port); |
0198fd3c |
727 | |
a6b4e4d4 |
728 | listenSock = socket(AF_INET, SOCK_STREAM, 0); |
729 | if (listenSock == INVALID_SOCKET) |
730 | { |
731 | return -1; |
732 | } |
0198fd3c |
733 | |
a6b4e4d4 |
734 | if (! bind(listenSock, (struct sockaddr *) &sockAddr, sockLen) |
735 | || ! listen(listenSock, backlog)) |
736 | { |
737 | return -1; |
738 | } |
739 | |
740 | pseudoFd = Win32NewDescriptor(listenType, listenSock, -1); |
741 | |
742 | if (pseudoFd == -1) |
743 | { |
744 | closesocket(listenSock); |
745 | return -1; |
746 | } |
747 | |
748 | hListen = (HANDLE) listenSock; |
0198fd3c |
749 | } |
a6b4e4d4 |
750 | else |
751 | { |
752 | HANDLE hListenPipe = INVALID_HANDLE_VALUE; |
753 | char *pipePath = malloc(strlen(bindPathPrefix) + strlen(bindPath) + 1); |
754 | |
755 | if (! pipePath) |
756 | { |
757 | return -1; |
758 | } |
0198fd3c |
759 | |
a6b4e4d4 |
760 | strcpy(pipePath, bindPathPrefix); |
761 | strcat(pipePath, bindPath); |
6ad90ad2 |
762 | |
a6b4e4d4 |
763 | hListenPipe = CreateNamedPipe(pipePath, |
764 | PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
765 | PIPE_TYPE_BYTE | PIPE_WAIT | PIPE_READMODE_BYTE, |
766 | PIPE_UNLIMITED_INSTANCES, |
767 | 4096, 4096, 0, NULL); |
768 | |
769 | free(pipePath); |
6ad90ad2 |
770 | |
a6b4e4d4 |
771 | if (hListenPipe == INVALID_HANDLE_VALUE) |
772 | { |
773 | return -1; |
774 | } |
775 | |
776 | if (! SetHandleInformation(hListenPipe, HANDLE_FLAG_INHERIT, TRUE)) |
777 | { |
778 | return -1; |
779 | } |
780 | |
781 | pseudoFd = Win32NewDescriptor(listenType, (int) hListenPipe, -1); |
782 | |
783 | if (pseudoFd == -1) |
784 | { |
785 | CloseHandle(hListenPipe); |
786 | return -1; |
787 | } |
788 | |
789 | hListen = (HANDLE) hListenPipe; |
0198fd3c |
790 | } |
791 | |
a6b4e4d4 |
792 | return pseudoFd; |
0198fd3c |
793 | } |
794 | |
0198fd3c |
795 | /* |
796 | *---------------------------------------------------------------------- |
797 | * |
798 | * OS_FcgiConnect -- |
799 | * |
800 | * Create the pipe pathname connect to the remote application if |
801 | * possible. |
802 | * |
803 | * Results: |
804 | * -1 if fail or a valid handle if connection succeeds. |
805 | * |
806 | * Side effects: |
807 | * Remote connection established. |
808 | * |
809 | *---------------------------------------------------------------------- |
810 | */ |
811 | int OS_FcgiConnect(char *bindPath) |
812 | { |
a6b4e4d4 |
813 | short port = getPort(bindPath); |
814 | int pseudoFd = -1; |
87abe107 |
815 | |
a6b4e4d4 |
816 | if (port) |
817 | { |
818 | struct hostent *hp; |
819 | char *host = NULL; |
820 | struct sockaddr_in sockAddr; |
821 | int sockLen = sizeof(sockAddr); |
822 | SOCKET sock; |
823 | |
824 | if (*bindPath != ':') |
825 | { |
826 | char * p = strchr(bindPath, ':'); |
827 | int len = p - bindPath + 1; |
6ad90ad2 |
828 | |
a6b4e4d4 |
829 | host = malloc(len); |
830 | strncpy(host, bindPath, len); |
831 | host[len] = '\0'; |
832 | } |
833 | |
834 | hp = gethostbyname(host ? host : LOCALHOST); |
835 | |
836 | if (host) |
837 | { |
838 | free(host); |
839 | } |
840 | |
841 | if (hp == NULL) |
842 | { |
843 | fprintf(stderr, "Unknown host: %s\n", bindPath); |
844 | return -1; |
845 | } |
846 | |
847 | memset(&sockAddr, 0, sizeof(sockAddr)); |
848 | sockAddr.sin_family = AF_INET; |
849 | memcpy(&sockAddr.sin_addr, hp->h_addr, hp->h_length); |
850 | sockAddr.sin_port = htons(port); |
851 | |
852 | sock = socket(AF_INET, SOCK_STREAM, 0); |
853 | if (sock == INVALID_SOCKET) |
854 | { |
855 | return -1; |
856 | } |
857 | |
858 | if (! connect(sock, (struct sockaddr *) &sockAddr, sockLen)) |
859 | { |
860 | closesocket(sock); |
861 | return -1; |
862 | } |
863 | |
864 | pseudoFd = Win32NewDescriptor(FD_SOCKET_SYNC, sock, -1); |
865 | if (pseudoFd == -1) |
866 | { |
867 | closesocket(sock); |
868 | return -1; |
869 | } |
0198fd3c |
870 | } |
a6b4e4d4 |
871 | else |
872 | { |
873 | char *pipePath = malloc(strlen(bindPathPrefix) + strlen(bindPath) + 1); |
874 | HANDLE hPipe; |
875 | |
876 | if (! pipePath) |
877 | { |
878 | return -1; |
879 | } |
0198fd3c |
880 | |
a6b4e4d4 |
881 | strcpy(pipePath, bindPathPrefix); |
882 | strcat(pipePath, bindPath); |
883 | |
884 | hPipe = CreateFile(pipePath, |
885 | GENERIC_WRITE | GENERIC_READ, |
886 | FILE_SHARE_READ | FILE_SHARE_WRITE, |
887 | NULL, |
888 | OPEN_EXISTING, |
889 | FILE_FLAG_OVERLAPPED, |
890 | NULL); |
891 | |
892 | free(pipePath); |
893 | |
894 | if( hPipe == INVALID_HANDLE_VALUE) |
895 | { |
896 | return -1; |
897 | } |
898 | |
899 | pseudoFd = Win32NewDescriptor(FD_PIPE_ASYNC, (int) hPipe, -1); |
900 | |
901 | if (pseudoFd == -1) |
902 | { |
903 | CloseHandle(hPipe); |
904 | return -1; |
905 | } |
906 | |
0198fd3c |
907 | /* |
a6b4e4d4 |
908 | * Set stdin equal to our pseudo FD and create the I/O completion |
909 | * port to be used for async I/O. |
910 | */ |
911 | if (! CreateIoCompletionPort(hPipe, hIoCompPort, pseudoFd, 1)) |
912 | { |
913 | Win32FreeDescriptor(pseudoFd); |
914 | CloseHandle(hPipe); |
915 | return -1; |
916 | } |
0198fd3c |
917 | } |
a6b4e4d4 |
918 | |
919 | return pseudoFd; |
0198fd3c |
920 | } |
6ad90ad2 |
921 | |
0198fd3c |
922 | /* |
923 | *-------------------------------------------------------------- |
924 | * |
925 | * OS_Read -- |
926 | * |
927 | * Pass through to the appropriate NT read function. |
928 | * |
929 | * Results: |
930 | * Returns number of byes read. Mimics unix read:. |
931 | * n bytes read, 0 or -1 failure: errno contains actual error |
932 | * |
933 | * Side effects: |
934 | * None. |
935 | * |
936 | *-------------------------------------------------------------- |
937 | */ |
938 | int OS_Read(int fd, char * buf, size_t len) |
939 | { |
940 | DWORD bytesRead; |
225369c3 |
941 | int ret = -1; |
0198fd3c |
942 | |
0198fd3c |
943 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
944 | |
225369c3 |
945 | switch (fdTable[fd].type) |
946 | { |
0198fd3c |
947 | case FD_FILE_SYNC: |
948 | case FD_FILE_ASYNC: |
949 | case FD_PIPE_SYNC: |
950 | case FD_PIPE_ASYNC: |
225369c3 |
951 | |
952 | if (ReadFile(fdTable[fd].fid.fileHandle, buf, len, &bytesRead, NULL)) |
953 | { |
954 | ret = bytesRead; |
955 | } |
956 | else |
957 | { |
958 | fdTable[fd].Errno = GetLastError(); |
0198fd3c |
959 | } |
225369c3 |
960 | |
961 | break; |
0198fd3c |
962 | |
963 | case FD_SOCKET_SYNC: |
964 | case FD_SOCKET_ASYNC: |
225369c3 |
965 | |
966 | ret = recv(fdTable[fd].fid.sock, buf, len, 0); |
967 | if (ret == SOCKET_ERROR) |
968 | { |
969 | fdTable[fd].Errno = WSAGetLastError(); |
970 | ret = -1; |
0198fd3c |
971 | } |
225369c3 |
972 | |
973 | break; |
974 | |
975 | default: |
976 | |
977 | ASSERT(0); |
0198fd3c |
978 | } |
225369c3 |
979 | |
980 | return ret; |
0198fd3c |
981 | } |
62e100c7 |
982 | |
0198fd3c |
983 | /* |
984 | *-------------------------------------------------------------- |
985 | * |
986 | * OS_Write -- |
987 | * |
988 | * Perform a synchronous OS write. |
989 | * |
990 | * Results: |
991 | * Returns number of bytes written. Mimics unix write: |
992 | * n bytes written, 0 or -1 failure (??? couldn't find man page). |
993 | * |
994 | * Side effects: |
995 | * none. |
996 | * |
997 | *-------------------------------------------------------------- |
998 | */ |
999 | int OS_Write(int fd, char * buf, size_t len) |
1000 | { |
1001 | DWORD bytesWritten; |
225369c3 |
1002 | int ret = -1; |
0198fd3c |
1003 | |
225369c3 |
1004 | ASSERT(fd >= 0 && fd < WIN32_OPEN_MAX); |
0198fd3c |
1005 | |
225369c3 |
1006 | switch (fdTable[fd].type) |
1007 | { |
0198fd3c |
1008 | case FD_FILE_SYNC: |
1009 | case FD_FILE_ASYNC: |
1010 | case FD_PIPE_SYNC: |
1011 | case FD_PIPE_ASYNC: |
225369c3 |
1012 | |
1013 | if (WriteFile(fdTable[fd].fid.fileHandle, buf, len, &bytesWritten, NULL)) |
1014 | { |
1015 | ret = bytesWritten; |
1016 | } |
1017 | else |
1018 | { |
1019 | fdTable[fd].Errno = GetLastError(); |
0198fd3c |
1020 | } |
225369c3 |
1021 | |
1022 | break; |
1023 | |
0198fd3c |
1024 | case FD_SOCKET_SYNC: |
1025 | case FD_SOCKET_ASYNC: |
225369c3 |
1026 | |
1027 | ret = send(fdTable[fd].fid.sock, buf, len, 0); |
1028 | if (ret == SOCKET_ERROR) |
1029 | { |
1030 | fdTable[fd].Errno = WSAGetLastError(); |
1031 | ret = -1; |
0198fd3c |
1032 | } |
225369c3 |
1033 | |
1034 | break; |
1035 | |
1036 | default: |
1037 | |
1038 | ASSERT(0); |
0198fd3c |
1039 | } |
225369c3 |
1040 | |
1041 | return ret; |
0198fd3c |
1042 | } |
1043 | |
0198fd3c |
1044 | /* |
1045 | *---------------------------------------------------------------------- |
1046 | * |
1047 | * OS_SpawnChild -- |
1048 | * |
1049 | * Spawns a new server listener process, and stores the information |
1050 | * relating to the child in the supplied record. A wait handler is |
1051 | * registered on the child's completion. This involves creating |
1052 | * a process on NT and preparing a command line with the required |
1053 | * state (currently a -childproc flag and the server socket to use |
1054 | * for accepting connections). |
1055 | * |
1056 | * Results: |
1057 | * 0 if success, -1 if error. |
1058 | * |
1059 | * Side effects: |
1060 | * Child process spawned. |
1061 | * |
1062 | *---------------------------------------------------------------------- |
1063 | */ |
1064 | int OS_SpawnChild(char *execPath, int listenFd) |
1065 | { |
1066 | STARTUPINFO StartupInfo; |
1067 | PROCESS_INFORMATION pInfo; |
1068 | BOOL success; |
1069 | |
1070 | memset((void *)&StartupInfo, 0, sizeof(STARTUPINFO)); |
1071 | StartupInfo.cb = sizeof (STARTUPINFO); |
1072 | StartupInfo.lpReserved = NULL; |
1073 | StartupInfo.lpReserved2 = NULL; |
1074 | StartupInfo.cbReserved2 = 0; |
1075 | StartupInfo.lpDesktop = NULL; |
1076 | |
1077 | /* |
1078 | * FastCGI on NT will set the listener pipe HANDLE in the stdin of |
1079 | * the new process. The fact that there is a stdin and NULL handles |
1080 | * for stdout and stderr tells the FastCGI process that this is a |
1081 | * FastCGI process and not a CGI process. |
1082 | */ |
1083 | StartupInfo.dwFlags = STARTF_USESTDHANDLES; |
1084 | /* |
1085 | * XXX: Do I have to dup the handle before spawning the process or is |
1086 | * it sufficient to use the handle as it's reference counted |
1087 | * by NT anyway? |
1088 | */ |
1089 | StartupInfo.hStdInput = fdTable[listenFd].fid.fileHandle; |
1090 | StartupInfo.hStdOutput = INVALID_HANDLE_VALUE; |
1091 | StartupInfo.hStdError = INVALID_HANDLE_VALUE; |
6ad90ad2 |
1092 | |
0198fd3c |
1093 | /* |
1094 | * Make the listener socket inheritable. |
1095 | */ |
1096 | success = SetHandleInformation(StartupInfo.hStdInput, HANDLE_FLAG_INHERIT, |
1097 | TRUE); |
1098 | if(!success) { |
1099 | exit(99); |
1100 | } |
1101 | |
1102 | /* |
1103 | * XXX: Might want to apply some specific security attributes to the |
1104 | * processes. |
1105 | */ |
1106 | success = CreateProcess(execPath, /* LPCSTR address of module name */ |
1107 | NULL, /* LPCSTR address of command line */ |
6ad90ad2 |
1108 | NULL, /* Process security attributes */ |
0198fd3c |
1109 | NULL, /* Thread security attributes */ |
1110 | TRUE, /* Inheritable Handes inherited. */ |
1111 | 0, /* DWORD creation flags */ |
1112 | NULL, /* Use parent environment block */ |
1113 | NULL, /* Address of current directory name */ |
1114 | &StartupInfo, /* Address of STARTUPINFO */ |
1115 | &pInfo); /* Address of PROCESS_INFORMATION */ |
1116 | if(success) { |
1117 | return 0; |
1118 | } else { |
1119 | return -1; |
1120 | } |
1121 | } |
1122 | |
0198fd3c |
1123 | /* |
1124 | *-------------------------------------------------------------- |
1125 | * |
1126 | * OS_AsyncReadStdin -- |
1127 | * |
1128 | * This initiates an asynchronous read on the standard |
1129 | * input handle. This handle is not guaranteed to be |
6ad90ad2 |
1130 | * capable of performing asynchronous I/O so we send a |
0198fd3c |
1131 | * message to the StdinThread to do the synchronous read. |
1132 | * |
1133 | * Results: |
1134 | * -1 if error, 0 otherwise. |
1135 | * |
1136 | * Side effects: |
1137 | * Asynchronous message is queued to the StdinThread and an |
1138 | * overlapped structure is allocated/initialized. |
1139 | * |
1140 | *-------------------------------------------------------------- |
1141 | */ |
6ad90ad2 |
1142 | int OS_AsyncReadStdin(void *buf, int len, OS_AsyncProc procPtr, |
0198fd3c |
1143 | ClientData clientData) |
1144 | { |
1145 | POVERLAPPED_REQUEST pOv; |
1146 | |
1147 | ASSERT(fdTable[STDIN_FILENO].type != FD_UNUSED); |
1148 | |
1149 | pOv = (POVERLAPPED_REQUEST)malloc(sizeof(struct OVERLAPPED_REQUEST)); |
1150 | ASSERT(pOv); |
1151 | memset((void *)pOv, 0, sizeof(struct OVERLAPPED_REQUEST)); |
1152 | pOv->clientData1 = (ClientData)buf; |
1153 | pOv->instance = fdTable[STDIN_FILENO].instance; |
1154 | pOv->procPtr = procPtr; |
1155 | pOv->clientData = clientData; |
1156 | |
1157 | PostQueuedCompletionStatus(hStdinCompPort, len, STDIN_FILENO, |
1158 | (LPOVERLAPPED)pOv); |
1159 | return 0; |
1160 | } |
1161 | |
0198fd3c |
1162 | /* |
1163 | *-------------------------------------------------------------- |
1164 | * |
1165 | * OS_AsyncRead -- |
1166 | * |
1167 | * This initiates an asynchronous read on the file |
1168 | * handle which may be a socket or named pipe. |
1169 | * |
1170 | * We also must save the ProcPtr and ClientData, so later |
1171 | * when the io completes, we know who to call. |
1172 | * |
1173 | * We don't look at any results here (the ReadFile may |
1174 | * return data if it is cached) but do all completion |
1175 | * processing in OS_Select when we get the io completion |
1176 | * port done notifications. Then we call the callback. |
1177 | * |
1178 | * Results: |
1179 | * -1 if error, 0 otherwise. |
1180 | * |
1181 | * Side effects: |
1182 | * Asynchronous I/O operation is queued for completion. |
1183 | * |
1184 | *-------------------------------------------------------------- |
1185 | */ |
1186 | int OS_AsyncRead(int fd, int offset, void *buf, int len, |
1187 | OS_AsyncProc procPtr, ClientData clientData) |
1188 | { |
1189 | DWORD bytesRead; |
1190 | POVERLAPPED_REQUEST pOv; |
1191 | |
1192 | /* |
1193 | * Catch any bogus fd values |
1194 | */ |
1195 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
1196 | /* |
1197 | * Confirm that this is an async fd |
1198 | */ |
1199 | ASSERT(fdTable[fd].type != FD_UNUSED); |
1200 | ASSERT(fdTable[fd].type != FD_FILE_SYNC); |
1201 | ASSERT(fdTable[fd].type != FD_PIPE_SYNC); |
1202 | ASSERT(fdTable[fd].type != FD_SOCKET_SYNC); |
1203 | |
1204 | pOv = (POVERLAPPED_REQUEST)malloc(sizeof(struct OVERLAPPED_REQUEST)); |
1205 | ASSERT(pOv); |
1206 | memset((void *)pOv, 0, sizeof(struct OVERLAPPED_REQUEST)); |
1207 | /* |
1208 | * Only file offsets should be non-zero, but make sure. |
1209 | */ |
1210 | if (fdTable[fd].type == FD_FILE_ASYNC) |
1211 | if (fdTable[fd].offset >= 0) |
1212 | pOv->overlapped.Offset = fdTable[fd].offset; |
1213 | else |
1214 | pOv->overlapped.Offset = offset; |
1215 | pOv->instance = fdTable[fd].instance; |
1216 | pOv->procPtr = procPtr; |
1217 | pOv->clientData = clientData; |
1218 | bytesRead = fd; |
1219 | /* |
1220 | * ReadFile returns: TRUE success, FALSE failure |
1221 | */ |
1222 | if (!ReadFile(fdTable[fd].fid.fileHandle, buf, len, &bytesRead, |
1223 | (LPOVERLAPPED)pOv)) { |
1224 | fdTable[fd].Errno = GetLastError(); |
1225 | if(fdTable[fd].Errno == ERROR_NO_DATA || |
1226 | fdTable[fd].Errno == ERROR_PIPE_NOT_CONNECTED) { |
1227 | PostQueuedCompletionStatus(hIoCompPort, 0, fd, (LPOVERLAPPED)pOv); |
1228 | return 0; |
1229 | } |
1230 | if(fdTable[fd].Errno != ERROR_IO_PENDING) { |
1231 | PostQueuedCompletionStatus(hIoCompPort, 0, fd, (LPOVERLAPPED)pOv); |
1232 | return -1; |
1233 | } |
1234 | fdTable[fd].Errno = 0; |
1235 | } |
1236 | return 0; |
1237 | } |
62e100c7 |
1238 | |
0198fd3c |
1239 | /* |
1240 | *-------------------------------------------------------------- |
1241 | * |
1242 | * OS_AsyncWrite -- |
1243 | * |
1244 | * This initiates an asynchronous write on the "fake" file |
1245 | * descriptor (which may be a file, socket, or named pipe). |
1246 | * We also must save the ProcPtr and ClientData, so later |
1247 | * when the io completes, we know who to call. |
1248 | * |
1249 | * We don't look at any results here (the WriteFile generally |
1250 | * completes immediately) but do all completion processing |
1251 | * in OS_DoIo when we get the io completion port done |
1252 | * notifications. Then we call the callback. |
1253 | * |
1254 | * Results: |
1255 | * -1 if error, 0 otherwise. |
1256 | * |
1257 | * Side effects: |
1258 | * Asynchronous I/O operation is queued for completion. |
1259 | * |
1260 | *-------------------------------------------------------------- |
1261 | */ |
6ad90ad2 |
1262 | int OS_AsyncWrite(int fd, int offset, void *buf, int len, |
0198fd3c |
1263 | OS_AsyncProc procPtr, ClientData clientData) |
1264 | { |
1265 | DWORD bytesWritten; |
1266 | POVERLAPPED_REQUEST pOv; |
1267 | |
1268 | /* |
1269 | * Catch any bogus fd values |
1270 | */ |
1271 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
1272 | /* |
1273 | * Confirm that this is an async fd |
1274 | */ |
1275 | ASSERT(fdTable[fd].type != FD_UNUSED); |
1276 | ASSERT(fdTable[fd].type != FD_FILE_SYNC); |
1277 | ASSERT(fdTable[fd].type != FD_PIPE_SYNC); |
1278 | ASSERT(fdTable[fd].type != FD_SOCKET_SYNC); |
1279 | |
1280 | pOv = (POVERLAPPED_REQUEST)malloc(sizeof(struct OVERLAPPED_REQUEST)); |
1281 | ASSERT(pOv); |
1282 | memset((void *)pOv, 0, sizeof(struct OVERLAPPED_REQUEST)); |
1283 | /* |
1284 | * Only file offsets should be non-zero, but make sure. |
1285 | */ |
1286 | if (fdTable[fd].type == FD_FILE_ASYNC) |
6ad90ad2 |
1287 | /* |
0198fd3c |
1288 | * Only file opened via OS_AsyncWrite with |
1289 | * O_APPEND will have an offset != -1. |
1290 | */ |
1291 | if (fdTable[fd].offset >= 0) |
6ad90ad2 |
1292 | /* |
0198fd3c |
1293 | * If the descriptor has a memory mapped file |
1294 | * handle, take the offsets from there. |
1295 | */ |
1296 | if (fdTable[fd].hMapMutex != NULL) { |
1297 | /* |
1298 | * Wait infinitely; this *should* not cause problems. |
6ad90ad2 |
1299 | */ |
0198fd3c |
1300 | WaitForSingleObject(fdTable[fd].hMapMutex, INFINITE); |
6ad90ad2 |
1301 | |
0198fd3c |
1302 | /* |
1303 | * Retrieve the shared offset values. |
1304 | */ |
1305 | pOv->overlapped.OffsetHigh = *(fdTable[fd].offsetHighPtr); |
1306 | pOv->overlapped.Offset = *(fdTable[fd].offsetLowPtr); |
6ad90ad2 |
1307 | |
0198fd3c |
1308 | /* |
1309 | * Update the shared offset values for the next write |
1310 | */ |
1311 | *(fdTable[fd].offsetHighPtr) += 0; /* XXX How do I handle overflow */ |
1312 | *(fdTable[fd].offsetLowPtr) += len; |
6ad90ad2 |
1313 | |
0198fd3c |
1314 | ReleaseMutex(fdTable[fd].hMapMutex); |
6ad90ad2 |
1315 | } else |
0198fd3c |
1316 | pOv->overlapped.Offset = fdTable[fd].offset; |
1317 | else |
1318 | pOv->overlapped.Offset = offset; |
1319 | pOv->instance = fdTable[fd].instance; |
1320 | pOv->procPtr = procPtr; |
1321 | pOv->clientData = clientData; |
1322 | bytesWritten = fd; |
1323 | /* |
1324 | * WriteFile returns: TRUE success, FALSE failure |
1325 | */ |
1326 | if (!WriteFile(fdTable[fd].fid.fileHandle, buf, len, &bytesWritten, |
1327 | (LPOVERLAPPED)pOv)) { |
1328 | fdTable[fd].Errno = GetLastError(); |
1329 | if(fdTable[fd].Errno != ERROR_IO_PENDING) { |
1330 | PostQueuedCompletionStatus(hIoCompPort, 0, fd, (LPOVERLAPPED)pOv); |
1331 | return -1; |
1332 | } |
1333 | fdTable[fd].Errno = 0; |
1334 | } |
1335 | if (fdTable[fd].offset >= 0) |
1336 | fdTable[fd].offset += len; |
1337 | return 0; |
1338 | } |
1339 | |
0198fd3c |
1340 | /* |
1341 | *-------------------------------------------------------------- |
1342 | * |
1343 | * OS_Close -- |
1344 | * |
1345 | * Closes the descriptor with routine appropriate for |
1346 | * descriptor's type. |
1347 | * |
1348 | * Results: |
1349 | * Socket or file is closed. Return values mimic Unix close: |
1350 | * 0 success, -1 failure |
1351 | * |
1352 | * Side effects: |
1353 | * Entry in fdTable is marked as free. |
1354 | * |
1355 | *-------------------------------------------------------------- |
1356 | */ |
1357 | int OS_Close(int fd) |
1358 | { |
1359 | int ret = 0; |
1360 | |
1361 | /* |
1362 | * Catch it if fd is a bogus value |
1363 | */ |
1364 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
1365 | ASSERT(fdTable[fd].type != FD_UNUSED); |
1366 | |
1367 | switch (fdTable[fd].type) { |
1368 | case FD_PIPE_SYNC: |
1369 | case FD_PIPE_ASYNC: |
1370 | case FD_FILE_SYNC: |
1371 | case FD_FILE_ASYNC: |
0198fd3c |
1372 | break; |
87abe107 |
1373 | |
1374 | case FD_SOCKET_SYNC: |
0198fd3c |
1375 | case FD_SOCKET_ASYNC: |
1376 | /* |
1377 | * Closing a socket that has an async read outstanding causes a |
1378 | * tcp reset and possible data loss. The shutdown call seems to |
1379 | * prevent this. |
1380 | */ |
1381 | shutdown(fdTable[fd].fid.sock, 2); |
1382 | /* |
1383 | * closesocket returns: 0 success, SOCKET_ERROR failure |
1384 | */ |
1385 | if (closesocket(fdTable[fd].fid.sock) == SOCKET_ERROR) |
1386 | ret = -1; |
1387 | break; |
1388 | default: |
1389 | return -1; /* fake failure */ |
1390 | } |
1391 | |
1392 | Win32FreeDescriptor(fd); |
1393 | return ret; |
1394 | } |
62e100c7 |
1395 | |
0198fd3c |
1396 | /* |
1397 | *-------------------------------------------------------------- |
1398 | * |
1399 | * OS_CloseRead -- |
1400 | * |
1401 | * Cancel outstanding asynchronous reads and prevent subsequent |
1402 | * reads from completing. |
1403 | * |
1404 | * Results: |
1405 | * Socket or file is shutdown. Return values mimic Unix shutdown: |
1406 | * 0 success, -1 failure |
1407 | * |
1408 | *-------------------------------------------------------------- |
1409 | */ |
1410 | int OS_CloseRead(int fd) |
1411 | { |
1412 | int ret = 0; |
1413 | |
1414 | /* |
1415 | * Catch it if fd is a bogus value |
1416 | */ |
1417 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
1418 | ASSERT(fdTable[fd].type == FD_SOCKET_ASYNC |
1419 | || fdTable[fd].type == FD_SOCKET_SYNC); |
1420 | |
1421 | if (shutdown(fdTable[fd].fid.sock,0) == SOCKET_ERROR) |
1422 | ret = -1; |
1423 | return ret; |
1424 | } |
62e100c7 |
1425 | |
0198fd3c |
1426 | /* |
1427 | *-------------------------------------------------------------- |
1428 | * |
1429 | * OS_DoIo -- |
1430 | * |
1431 | * This function was formerly OS_Select. It's purpose is |
1432 | * to pull I/O completion events off the queue and dispatch |
1433 | * them to the appropriate place. |
1434 | * |
1435 | * Results: |
1436 | * Returns 0. |
1437 | * |
1438 | * Side effects: |
1439 | * Handlers are called. |
1440 | * |
1441 | *-------------------------------------------------------------- |
1442 | */ |
1443 | int OS_DoIo(struct timeval *tmo) |
1444 | { |
bf00339b |
1445 | unsigned long fd; |
1446 | unsigned long bytes; |
0198fd3c |
1447 | POVERLAPPED_REQUEST pOv; |
1448 | struct timeb tb; |
1449 | int ms; |
1450 | int ms_last; |
1451 | int err; |
6ad90ad2 |
1452 | |
0198fd3c |
1453 | /* XXX |
1454 | * We can loop in here, but not too long, as wait handlers |
1455 | * must run. |
1456 | * For cgi stdin, apparently select returns when io completion |
1457 | * ports don't, so don't wait the full timeout. |
1458 | */ |
1459 | if(tmo) |
1460 | ms = (tmo->tv_sec*1000 + tmo->tv_usec/1000) / 2; |
1461 | else |
1462 | ms = 1000; |
1463 | ftime(&tb); |
1464 | ms_last = tb.time*1000 + tb.millitm; |
1465 | while (ms >= 0) { |
1466 | if(tmo && (ms = tmo->tv_sec*1000 + tmo->tv_usec/1000)> 100) |
1467 | ms = 100; |
1468 | if (!GetQueuedCompletionStatus(hIoCompPort, &bytes, &fd, |
1469 | (LPOVERLAPPED *)&pOv, ms) && !pOv) { |
1470 | err = WSAGetLastError(); |
1471 | return 0; /* timeout */ |
1472 | } |
6ad90ad2 |
1473 | |
0198fd3c |
1474 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
1475 | /* call callback if descriptor still valid */ |
1476 | ASSERT(pOv); |
1477 | if(pOv->instance == fdTable[fd].instance) |
1478 | (*pOv->procPtr)(pOv->clientData, bytes); |
1479 | free(pOv); |
1480 | |
1481 | ftime(&tb); |
1482 | ms -= (tb.time*1000 + tb.millitm - ms_last); |
1483 | ms_last = tb.time*1000 + tb.millitm; |
1484 | } |
1485 | return 0; |
1486 | } |
1487 | |
87abe107 |
1488 | |
1489 | static int CALLBACK isAddrOK(LPWSABUF lpCallerId, |
1490 | LPWSABUF dc0, |
1491 | LPQOS dc1, |
1492 | LPQOS dc2, |
1493 | LPWSABUF dc3, |
1494 | LPWSABUF dc4, |
1495 | GROUP *dc5, |
1496 | DWORD dwCallbackData) |
1497 | { |
1498 | const char *okAddrs = (char *) dwCallbackData; |
1499 | struct sockaddr *sockaddr = (struct sockaddr *) lpCallerId->buf; |
1500 | |
bf00339b |
1501 | // Touch the args to avoid warnings |
1502 | dc0 = NULL; dc1 = NULL; dc2 = NULL; dc3 = NULL; dc4 = NULL; dc5 = NULL; |
1503 | |
87abe107 |
1504 | if (okAddrs == NULL || sockaddr->sa_family != AF_INET) |
1505 | { |
1506 | return TRUE; |
1507 | } |
1508 | else |
1509 | { |
1510 | static const char *token = " ,;:\t"; |
1511 | struct sockaddr_in * inet_sockaddr = (struct sockaddr_in *) sockaddr; |
1512 | char *ipaddr = inet_ntoa(inet_sockaddr->sin_addr); |
1513 | char *p = strstr(okAddrs, ipaddr); |
1514 | |
1515 | if (p == NULL) |
1516 | { |
1517 | return FALSE; |
1518 | } |
1519 | else if (p == okAddrs) |
1520 | { |
1521 | p += strlen(ipaddr); |
1522 | return (strchr(token, *p) != NULL); |
1523 | } |
1524 | else if (strchr(token, *--p)) |
1525 | { |
1526 | p += strlen(ipaddr) + 1; |
1527 | return (strchr(token, *p) != NULL); |
1528 | } |
1529 | else |
1530 | { |
1531 | return FALSE; |
1532 | } |
1533 | } |
1534 | } |
9bbd33f9 |
1535 | |
1536 | static printLastError(const char * text) |
1537 | { |
1538 | LPVOID buf; |
1539 | |
1540 | FormatMessage( |
1541 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
1542 | FORMAT_MESSAGE_FROM_SYSTEM | |
1543 | FORMAT_MESSAGE_IGNORE_INSERTS, |
1544 | NULL, |
1545 | GetLastError(), |
1546 | 0, |
1547 | (LPTSTR) &buf, |
1548 | 0, |
1549 | NULL |
1550 | ); |
1551 | |
1552 | fprintf(stderr, "%s: %s\n", text, (LPCTSTR) buf); |
1553 | LocalFree(buf); |
1554 | } |
1555 | |
1556 | static int acceptNamedPipe() |
1557 | { |
1558 | int ipcFd = -1; |
1559 | |
1560 | if (! ConnectNamedPipe(hListen, &listenOverlapped)) |
1561 | { |
1562 | switch (GetLastError()) |
1563 | { |
1564 | case ERROR_PIPE_CONNECTED: |
1565 | |
1566 | // A client connected after CreateNamedPipe but |
1567 | // before ConnectNamedPipe. Its a good connection. |
1568 | |
1569 | break; |
1570 | |
1571 | case ERROR_IO_PENDING: |
1572 | |
1573 | // Wait for a connection to complete. |
1574 | |
1575 | while (WaitForSingleObject(listenOverlapped.hEvent, |
1576 | ACCEPT_TIMEOUT) == WAIT_TIMEOUT) |
1577 | { |
1578 | if (shutdownPending) |
1579 | { |
1580 | OS_LibShutdown(); |
1581 | return -1; |
1582 | } |
1583 | } |
1584 | |
1585 | break; |
1586 | |
1587 | case ERROR_PIPE_LISTENING: |
1588 | |
1589 | // The pipe handle is in nonblocking mode. |
1590 | |
1591 | case ERROR_NO_DATA: |
1592 | |
1593 | // The previous client closed its handle (and we failed |
1594 | // to call DisconnectNamedPipe) |
1595 | |
1596 | default: |
1597 | |
1598 | printLastError("unexpected ConnectNamedPipe() error"); |
1599 | } |
1600 | } |
1601 | |
1602 | ipcFd = Win32NewDescriptor(FD_PIPE_SYNC, (int) hListen, -1); |
1603 | if (ipcFd == -1) |
1604 | { |
1605 | DisconnectNamedPipe(hListen); |
1606 | } |
1607 | |
1608 | return ipcFd; |
1609 | } |
1610 | |
1611 | static int acceptSocket(const char *webServerAddrs) |
1612 | { |
1613 | struct sockaddr sockaddr; |
1614 | int sockaddrLen = sizeof(sockaddr); |
1615 | fd_set readfds; |
1616 | const struct timeval timeout = {1, 0}; |
1617 | SOCKET hSock; |
1618 | int ipcFd = -1; |
1619 | |
1620 | FD_ZERO(&readfds); |
1621 | FD_SET((unsigned int) hListen, &readfds); |
1622 | |
1623 | while (select(0, &readfds, NULL, NULL, &timeout) == 0) |
1624 | { |
1625 | if (shutdownPending) |
1626 | { |
1627 | OS_LibShutdown(); |
1628 | return -1; |
1629 | } |
1630 | } |
1631 | |
1632 | hSock = (webServerAddrs == NULL) |
1633 | ? accept((SOCKET) hListen, |
1634 | &sockaddr, |
1635 | &sockaddrLen) |
1636 | : WSAAccept((unsigned int) hListen, |
1637 | &sockaddr, |
1638 | &sockaddrLen, |
1639 | isAddrOK, |
1640 | (DWORD) webServerAddrs); |
1641 | |
1642 | |
1643 | if (hSock == INVALID_SOCKET) |
1644 | { |
1645 | // Can I use FormatMessage()? |
1646 | fprintf(stderr, "accept()/WSAAccept() failed: %d", WSAGetLastError()); |
1647 | return -1; |
1648 | } |
87abe107 |
1649 | |
9bbd33f9 |
1650 | ipcFd = Win32NewDescriptor(FD_SOCKET_SYNC, hSock, -1); |
1651 | if (ipcFd == -1) |
1652 | { |
1653 | closesocket(hSock); |
1654 | } |
1655 | |
1656 | return ipcFd; |
1657 | } |
1658 | |
0198fd3c |
1659 | /* |
1660 | *---------------------------------------------------------------------- |
1661 | * |
0b7c9662 |
1662 | * OS_Accept -- |
0198fd3c |
1663 | * |
9bbd33f9 |
1664 | * Accepts a new FastCGI connection. This routine knows whether |
1665 | * we're dealing with TCP based sockets or NT Named Pipes for IPC. |
1666 | * |
1667 | * fail_on_intr is ignored in the Win lib. |
0198fd3c |
1668 | * |
1669 | * Results: |
1670 | * -1 if the operation fails, otherwise this is a valid IPC fd. |
1671 | * |
0198fd3c |
1672 | *---------------------------------------------------------------------- |
1673 | */ |
1dd5d7a8 |
1674 | int OS_Accept(int listen_sock, int fail_on_intr, const char *webServerAddrs) |
0198fd3c |
1675 | { |
0198fd3c |
1676 | int ipcFd = -1; |
9bbd33f9 |
1677 | |
bf00339b |
1678 | // Touch args to prevent warnings |
1679 | listen_sock = 0; fail_on_intr = 0; |
1680 | |
9bbd33f9 |
1681 | // @todo Muliple listen sockets and sockets other than 0 are not |
1682 | // supported due to the use of globals. |
0198fd3c |
1683 | |
87abe107 |
1684 | if (shutdownPending) |
1685 | { |
9bbd33f9 |
1686 | OS_LibShutdown(); |
87abe107 |
1687 | return -1; |
1688 | } |
0198fd3c |
1689 | |
87abe107 |
1690 | // The mutex is to keep other processes (and threads, when supported) |
1691 | // from going into the accept cycle. The accept cycle needs to |
1692 | // periodically break out to check the state of the shutdown flag |
1693 | // and there's no point to having more than one thread do that. |
1694 | |
1695 | if (acceptMutex != INVALID_HANDLE_VALUE) |
1696 | { |
1697 | if (WaitForSingleObject(acceptMutex, INFINITE) == WAIT_FAILED) |
1698 | { |
9bbd33f9 |
1699 | printLastError("WaitForSingleObject() failed"); |
0198fd3c |
1700 | return -1; |
1701 | } |
87abe107 |
1702 | } |
1703 | |
1704 | if (shutdownPending) |
1705 | { |
9bbd33f9 |
1706 | OS_LibShutdown(); |
87abe107 |
1707 | } |
9bbd33f9 |
1708 | else if (listenType == FD_PIPE_SYNC) |
87abe107 |
1709 | { |
9bbd33f9 |
1710 | ipcFd = acceptNamedPipe(); |
0198fd3c |
1711 | } |
87abe107 |
1712 | else if (listenType == FD_SOCKET_SYNC) |
1713 | { |
9bbd33f9 |
1714 | ipcFd = acceptSocket(webServerAddrs); |
0198fd3c |
1715 | } |
87abe107 |
1716 | else |
1717 | { |
9bbd33f9 |
1718 | fprintf(stderr, "unknown listenType (%d)\n", listenType); |
87abe107 |
1719 | } |
1720 | |
9bbd33f9 |
1721 | if (acceptMutex != INVALID_HANDLE_VALUE) |
1722 | { |
1723 | ReleaseMutex(acceptMutex); |
1724 | } |
1725 | |
87abe107 |
1726 | return ipcFd; |
0198fd3c |
1727 | } |
62e100c7 |
1728 | |
0198fd3c |
1729 | /* |
1730 | *---------------------------------------------------------------------- |
1731 | * |
1732 | * OS_IpcClose |
1733 | * |
1734 | * OS IPC routine to close an IPC connection. |
1735 | * |
1736 | * Results: |
1737 | * |
1738 | * |
1739 | * Side effects: |
1740 | * IPC connection is closed. |
1741 | * |
1742 | *---------------------------------------------------------------------- |
1743 | */ |
1744 | int OS_IpcClose(int ipcFd) |
1745 | { |
8462b1ec |
1746 | if (ipcFd == -1) |
1747 | return 0; |
1748 | |
0198fd3c |
1749 | /* |
1750 | * Catch it if fd is a bogus value |
1751 | */ |
1752 | ASSERT((ipcFd >= 0) && (ipcFd < WIN32_OPEN_MAX)); |
1753 | ASSERT(fdTable[ipcFd].type != FD_UNUSED); |
1754 | |
1755 | switch(listenType) { |
1756 | |
1757 | case FD_PIPE_SYNC: |
1758 | /* |
1759 | * Make sure that the client (ie. a Web Server in this case) has |
1760 | * read all data from the pipe before we disconnect. |
1761 | */ |
1762 | if(!FlushFileBuffers(fdTable[ipcFd].fid.fileHandle)) |
1763 | return -1; |
1764 | if(DisconnectNamedPipe(fdTable[ipcFd].fid.fileHandle)) { |
1765 | OS_Close(ipcFd); |
1766 | return 0; |
1767 | } else { |
1768 | return -1; |
1769 | } |
1770 | break; |
1771 | |
1772 | case FD_SOCKET_SYNC: |
1773 | OS_Close(ipcFd); |
3bc7b7d9 |
1774 | return 0; |
0198fd3c |
1775 | break; |
1776 | |
1777 | case FD_UNUSED: |
1778 | default: |
1779 | exit(106); |
1780 | break; |
1781 | } |
0198fd3c |
1782 | } |
1783 | |
0198fd3c |
1784 | /* |
1785 | *---------------------------------------------------------------------- |
1786 | * |
1787 | * OS_IsFcgi -- |
1788 | * |
1789 | * Determines whether this process is a FastCGI process or not. |
1790 | * |
1791 | * Results: |
1792 | * Returns 1 if FastCGI, 0 if not. |
1793 | * |
1794 | * Side effects: |
1795 | * None. |
1796 | * |
1797 | *---------------------------------------------------------------------- |
1798 | */ |
0b7c9662 |
1799 | int OS_IsFcgi(int sock) |
0198fd3c |
1800 | { |
bf00339b |
1801 | // Touch args to prevent warnings |
1802 | sock = 0; |
1803 | |
0394d3a2 |
1804 | /* XXX This is broken for sock */ |
1805 | |
1806 | return (listenType != FD_UNUSED); |
0198fd3c |
1807 | } |
1808 | |
0198fd3c |
1809 | /* |
1810 | *---------------------------------------------------------------------- |
1811 | * |
1812 | * OS_SetFlags -- |
1813 | * |
1814 | * Sets selected flag bits in an open file descriptor. Currently |
1815 | * this is only to put a SOCKET into non-blocking mode. |
1816 | * |
1817 | *---------------------------------------------------------------------- |
1818 | */ |
1819 | void OS_SetFlags(int fd, int flags) |
1820 | { |
3bc7b7d9 |
1821 | unsigned long pLong = 1L; |
0198fd3c |
1822 | int err; |
6ad90ad2 |
1823 | |
3bc7b7d9 |
1824 | if (fdTable[fd].type == FD_SOCKET_SYNC && flags == O_NONBLOCK) { |
0198fd3c |
1825 | if (ioctlsocket(fdTable[fd].fid.sock, FIONBIO, &pLong) == |
1826 | SOCKET_ERROR) { |
1827 | exit(WSAGetLastError()); |
1828 | } |
1829 | if (!CreateIoCompletionPort((HANDLE)fdTable[fd].fid.sock, |
1830 | hIoCompPort, fd, 1)) { |
1831 | err = GetLastError(); |
1832 | exit(err); |
1833 | } |
1834 | |
1835 | fdTable[fd].type = FD_SOCKET_ASYNC; |
1836 | } |
1837 | return; |
1838 | } |
1839 | |