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9 | * remains the unpublished property of Open Market, Inc. Use, |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 |
bf00339b |
20 | static const char rcsid[] = "$Id: os_win32.c,v 1.18 2001/06/20 17:02:09 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) |
6ad90ad2 |
32 | #include "fcgios.h" |
9bbd33f9 |
33 | #include "fcgimisc.h" |
0198fd3c |
34 | |
87abe107 |
35 | #define WIN32_OPEN_MAX 128 /* XXX: Small hack */ |
a6b4e4d4 |
36 | |
9bbd33f9 |
37 | /* |
38 | * millisecs to wait for a client connection before checking the |
39 | * shutdown flag (then go back to waiting for a connection, etc). |
40 | */ |
41 | #define ACCEPT_TIMEOUT 1000 |
42 | |
6ad90ad2 |
43 | #define MUTEX_VARNAME "_FCGI_MUTEX_" |
87abe107 |
44 | #define SHUTDOWN_EVENT_NAME "_FCGI_SHUTDOWN_EVENT_" |
a6b4e4d4 |
45 | #define LOCALHOST "localhost" |
6ad90ad2 |
46 | |
0198fd3c |
47 | static HANDLE hIoCompPort = INVALID_HANDLE_VALUE; |
48 | static HANDLE hStdinCompPort = INVALID_HANDLE_VALUE; |
49 | static HANDLE hStdinThread = INVALID_HANDLE_VALUE; |
50 | |
51 | static HANDLE stdioHandles[3] = {INVALID_HANDLE_VALUE, INVALID_HANDLE_VALUE, |
52 | INVALID_HANDLE_VALUE}; |
53 | |
87abe107 |
54 | static HANDLE acceptMutex = INVALID_HANDLE_VALUE; |
55 | |
56 | static BOOLEAN shutdownPending = FALSE; |
0198fd3c |
57 | |
6ad90ad2 |
58 | /* |
0198fd3c |
59 | * An enumeration of the file types |
60 | * supported by the FD_TABLE structure. |
61 | * |
62 | * XXX: Not all currently supported. This allows for future |
63 | * functionality. |
64 | */ |
65 | typedef enum { |
66 | FD_UNUSED, |
67 | FD_FILE_SYNC, |
68 | FD_FILE_ASYNC, |
69 | FD_SOCKET_SYNC, |
70 | FD_SOCKET_ASYNC, |
71 | FD_PIPE_SYNC, |
72 | FD_PIPE_ASYNC |
73 | } FILE_TYPE; |
74 | |
75 | typedef union { |
76 | HANDLE fileHandle; |
77 | SOCKET sock; |
78 | unsigned int value; |
79 | } DESCRIPTOR; |
80 | |
6ad90ad2 |
81 | /* |
0198fd3c |
82 | * Structure used to map file handle and socket handle |
83 | * values into values that can be used to create unix-like |
84 | * select bitmaps, read/write for both sockets/files. |
85 | */ |
86 | struct FD_TABLE { |
87 | DESCRIPTOR fid; |
88 | FILE_TYPE type; |
89 | char *path; |
90 | DWORD Errno; |
91 | unsigned long instance; |
92 | int status; |
93 | int offset; /* only valid for async file writes */ |
94 | LPDWORD offsetHighPtr; /* pointers to offset high and low words */ |
95 | LPDWORD offsetLowPtr; /* only valid for async file writes (logs) */ |
96 | HANDLE hMapMutex; /* mutex handle for multi-proc offset update */ |
97 | LPVOID ovList; /* List of associated OVERLAPPED_REQUESTs */ |
98 | }; |
99 | |
364045ff |
100 | /* |
101 | * XXX Note there is no dyanmic sizing of this table, so if the |
102 | * number of open file descriptors exceeds WIN32_OPEN_MAX the |
103 | * app will blow up. |
104 | */ |
0198fd3c |
105 | static struct FD_TABLE fdTable[WIN32_OPEN_MAX]; |
106 | |
73389ec2 |
107 | static CRITICAL_SECTION fdTableCritical; |
108 | |
0198fd3c |
109 | struct OVERLAPPED_REQUEST { |
110 | OVERLAPPED overlapped; |
111 | unsigned long instance; /* file instance (won't match after a close) */ |
112 | OS_AsyncProc procPtr; /* callback routine */ |
113 | ClientData clientData; /* callback argument */ |
114 | ClientData clientData1; /* additional clientData */ |
115 | }; |
116 | typedef struct OVERLAPPED_REQUEST *POVERLAPPED_REQUEST; |
117 | |
118 | static const char *bindPathPrefix = "\\\\.\\pipe\\FastCGI\\"; |
119 | |
a6b4e4d4 |
120 | static enum FILE_TYPE listenType = FD_UNUSED; |
87abe107 |
121 | |
122 | // XXX This should be a DESCRIPTOR |
0198fd3c |
123 | static HANDLE hListen = INVALID_HANDLE_VALUE; |
87abe107 |
124 | |
125 | static OVERLAPPED listenOverlapped; |
126 | static BOOLEAN libInitialized = FALSE; |
0198fd3c |
127 | |
0198fd3c |
128 | /* |
129 | *-------------------------------------------------------------- |
130 | * |
131 | * Win32NewDescriptor -- |
132 | * |
133 | * Set up for I/O descriptor masquerading. |
134 | * |
135 | * Results: |
136 | * Returns "fake id" which masquerades as a UNIX-style "small |
137 | * non-negative integer" file/socket descriptor. |
138 | * Win32_* routine below will "do the right thing" based on the |
139 | * descriptor's actual type. -1 indicates failure. |
140 | * |
141 | * Side effects: |
142 | * Entry in fdTable is reserved to represent the socket/file. |
143 | * |
144 | *-------------------------------------------------------------- |
145 | */ |
146 | static int Win32NewDescriptor(FILE_TYPE type, int fd, int desiredFd) |
147 | { |
73389ec2 |
148 | int index = -1; |
149 | |
150 | EnterCriticalSection(&fdTableCritical); |
0198fd3c |
151 | |
152 | /* |
73389ec2 |
153 | * If desiredFd is set, try to get this entry (this is used for |
154 | * mapping stdio handles). Otherwise try to get the fd entry. |
155 | * If this is not available, find a the first empty slot. . |
0198fd3c |
156 | */ |
87abe107 |
157 | if (desiredFd >= 0 && desiredFd < WIN32_OPEN_MAX) |
158 | { |
73389ec2 |
159 | if (fdTable[desiredFd].type == FD_UNUSED) |
87abe107 |
160 | { |
73389ec2 |
161 | index = desiredFd; |
87abe107 |
162 | } |
0198fd3c |
163 | } |
26c9b575 |
164 | else if (fd > 0) |
87abe107 |
165 | { |
26c9b575 |
166 | if (fd < WIN32_OPEN_MAX && fdTable[fd].type == FD_UNUSED) |
87abe107 |
167 | { |
26c9b575 |
168 | index = fd; |
169 | } |
170 | else |
171 | { |
172 | int i; |
73389ec2 |
173 | |
26c9b575 |
174 | for (i = 1; i < WIN32_OPEN_MAX; ++i) |
175 | { |
176 | if (fdTable[i].type == FD_UNUSED) |
73389ec2 |
177 | { |
26c9b575 |
178 | index = i; |
179 | break; |
73389ec2 |
180 | } |
87abe107 |
181 | } |
182 | } |
0198fd3c |
183 | } |
73389ec2 |
184 | |
185 | if (index != -1) |
186 | { |
187 | fdTable[index].fid.value = fd; |
188 | fdTable[index].type = type; |
189 | fdTable[index].path = NULL; |
190 | fdTable[index].Errno = NO_ERROR; |
191 | fdTable[index].status = 0; |
192 | fdTable[index].offset = -1; |
193 | fdTable[index].offsetHighPtr = fdTable[index].offsetLowPtr = NULL; |
194 | fdTable[index].hMapMutex = NULL; |
195 | fdTable[index].ovList = NULL; |
196 | } |
0198fd3c |
197 | |
73389ec2 |
198 | LeaveCriticalSection(&fdTableCritical); |
0198fd3c |
199 | return index; |
200 | } |
62e100c7 |
201 | |
0198fd3c |
202 | /* |
203 | *-------------------------------------------------------------- |
204 | * |
205 | * StdinThread-- |
206 | * |
207 | * This thread performs I/O on stadard input. It is needed |
208 | * because you can't guarantee that all applications will |
209 | * create standard input with sufficient access to perform |
210 | * asynchronous I/O. Since we don't want to block the app |
6ad90ad2 |
211 | * reading from stdin we make it look like it's using I/O |
0198fd3c |
212 | * completion ports to perform async I/O. |
213 | * |
214 | * Results: |
215 | * Data is read from stdin and posted to the io completion |
216 | * port. |
217 | * |
218 | * Side effects: |
219 | * None. |
220 | * |
221 | *-------------------------------------------------------------- |
222 | */ |
223 | static void StdinThread(LPDWORD startup){ |
224 | |
225 | int doIo = TRUE; |
bf00339b |
226 | unsigned long fd; |
227 | unsigned long bytesRead; |
0198fd3c |
228 | POVERLAPPED_REQUEST pOv; |
6ad90ad2 |
229 | |
bf00339b |
230 | // Touch the arg to prevent warning |
231 | startup = NULL; |
232 | |
0198fd3c |
233 | while(doIo) { |
234 | /* |
235 | * Block until a request to read from stdin comes in or a |
236 | * request to terminate the thread arrives (fd = -1). |
237 | */ |
238 | if (!GetQueuedCompletionStatus(hStdinCompPort, &bytesRead, &fd, |
239 | (LPOVERLAPPED *)&pOv, (DWORD)-1) && !pOv) { |
240 | doIo = 0; |
241 | break; |
242 | } |
6ad90ad2 |
243 | |
0198fd3c |
244 | ASSERT((fd == STDIN_FILENO) || (fd == -1)); |
245 | if(fd == -1) { |
246 | doIo = 0; |
247 | break; |
248 | } |
249 | ASSERT(pOv->clientData1 != NULL); |
250 | |
251 | if(ReadFile(stdioHandles[STDIN_FILENO], pOv->clientData1, bytesRead, |
252 | &bytesRead, NULL)) { |
6ad90ad2 |
253 | PostQueuedCompletionStatus(hIoCompPort, bytesRead, |
0198fd3c |
254 | STDIN_FILENO, (LPOVERLAPPED)pOv); |
255 | } else { |
256 | doIo = 0; |
257 | break; |
258 | } |
259 | } |
260 | |
261 | ExitThread(0); |
262 | } |
263 | |
87abe107 |
264 | static DWORD WINAPI ShutdownRequestThread(LPVOID arg) |
265 | { |
266 | HANDLE shutdownEvent = (HANDLE) arg; |
267 | |
268 | if (WaitForSingleObject(shutdownEvent, INFINITE) == WAIT_FAILED) |
269 | { |
270 | // Assuming it will happen again, all we can do is exit the thread |
bf00339b |
271 | return 1; |
87abe107 |
272 | } |
273 | else |
274 | { |
275 | // "Simple reads and writes to properly-aligned 32-bit variables are atomic" |
276 | shutdownPending = TRUE; |
277 | |
278 | // Before an accept() is entered the shutdownPending flag is checked. |
279 | // If set, OS_Accept() will return -1. If not, it waits |
280 | // on a connection request for one second, checks the flag, & repeats. |
281 | // Only one process/thread is allowed to do this at time by |
282 | // wrapping the accept() with mutex. |
283 | return 0; |
284 | } |
285 | } |
286 | |
0198fd3c |
287 | /* |
288 | *-------------------------------------------------------------- |
289 | * |
290 | * OS_LibInit -- |
291 | * |
292 | * Set up the OS library for use. |
293 | * |
294 | * Results: |
295 | * Returns 0 if success, -1 if not. |
296 | * |
297 | * Side effects: |
298 | * Sockets initialized, pseudo file descriptors setup, etc. |
299 | * |
300 | *-------------------------------------------------------------- |
301 | */ |
302 | int OS_LibInit(int stdioFds[3]) |
303 | { |
304 | WORD wVersion; |
305 | WSADATA wsaData; |
306 | int err; |
307 | int fakeFd; |
0198fd3c |
308 | DWORD threadId; |
309 | char *cLenPtr = NULL; |
87abe107 |
310 | char *val = NULL; |
311 | |
0198fd3c |
312 | if(libInitialized) |
313 | return 0; |
314 | |
73389ec2 |
315 | InitializeCriticalSection(&fdTableCritical); |
316 | |
0198fd3c |
317 | /* |
318 | * Initialize windows sockets library. |
319 | */ |
87abe107 |
320 | wVersion = MAKEWORD(2,0); |
0198fd3c |
321 | err = WSAStartup( wVersion, &wsaData ); |
322 | if (err) { |
323 | fprintf(stderr, "Error starting Windows Sockets. Error: %d", |
324 | WSAGetLastError()); |
325 | exit(111); |
326 | } |
327 | |
328 | /* |
329 | * Create the I/O completion port to be used for our I/O queue. |
330 | */ |
331 | if (hIoCompPort == INVALID_HANDLE_VALUE) { |
332 | hIoCompPort = CreateIoCompletionPort (INVALID_HANDLE_VALUE, NULL, |
333 | 0, 1); |
334 | if(hIoCompPort == INVALID_HANDLE_VALUE) { |
335 | printf("<H2>OS_LibInit Failed CreateIoCompletionPort! ERROR: %d</H2>\r\n\r\n", |
336 | GetLastError()); |
337 | return -1; |
338 | } |
339 | } |
340 | |
341 | /* |
87abe107 |
342 | * If a shutdown event is in the env, save it (I don't see any to |
343 | * remove it from the environment out from under the application). |
344 | * Spawn a thread to wait on the shutdown request. |
345 | */ |
346 | val = getenv(SHUTDOWN_EVENT_NAME); |
347 | if (val != NULL) |
348 | { |
349 | HANDLE shutdownEvent = (HANDLE) atoi(val); |
350 | |
351 | putenv(SHUTDOWN_EVENT_NAME"="); |
352 | |
353 | if (! CreateThread(NULL, 0, ShutdownRequestThread, |
354 | shutdownEvent, 0, NULL)) |
355 | { |
356 | return -1; |
357 | } |
358 | } |
359 | |
360 | /* |
361 | * If an accept mutex is in the env, save it and remove it. |
362 | */ |
363 | val = getenv(MUTEX_VARNAME); |
364 | if (val != NULL) |
365 | { |
366 | acceptMutex = (HANDLE) atoi(val); |
367 | } |
368 | |
369 | |
370 | /* |
0198fd3c |
371 | * Determine if this library is being used to listen for FastCGI |
372 | * connections. This is communicated by STDIN containing a |
373 | * valid handle to a listener object. In this case, both the |
374 | * "stdout" and "stderr" handles will be INVALID (ie. closed) by |
375 | * the starting process. |
376 | * |
377 | * The trick is determining if this is a pipe or a socket... |
378 | * |
379 | * XXX: Add the async accept test to determine socket or handle to a |
380 | * pipe!!! |
381 | */ |
382 | if((GetStdHandle(STD_OUTPUT_HANDLE) == INVALID_HANDLE_VALUE) && |
383 | (GetStdHandle(STD_ERROR_HANDLE) == INVALID_HANDLE_VALUE) && |
87abe107 |
384 | (GetStdHandle(STD_INPUT_HANDLE) != INVALID_HANDLE_VALUE) ) |
385 | { |
386 | DWORD pipeMode = PIPE_READMODE_BYTE | PIPE_WAIT; |
387 | HANDLE oldStdIn = GetStdHandle(STD_INPUT_HANDLE); |
388 | |
389 | // Move the handle to a "low" number |
390 | if (! DuplicateHandle(GetCurrentProcess(), oldStdIn, |
391 | GetCurrentProcess(), &hListen, |
392 | 0, TRUE, DUPLICATE_SAME_ACCESS)) |
393 | { |
394 | return -1; |
395 | } |
0198fd3c |
396 | |
87abe107 |
397 | if (! SetStdHandle(STD_INPUT_HANDLE, hListen)) |
398 | { |
399 | return -1; |
400 | } |
401 | |
402 | CloseHandle(oldStdIn); |
0198fd3c |
403 | |
404 | /* |
405 | * Set the pipe handle state so that it operates in wait mode. |
406 | * |
407 | * NOTE: The listenFd is not mapped to a pseudo file descriptor |
408 | * as all work done on it is contained to the OS library. |
409 | * |
410 | * XXX: Initial assumption is that SetNamedPipeHandleState will |
411 | * fail if this is an IP socket... |
412 | */ |
87abe107 |
413 | if (SetNamedPipeHandleState(hListen, &pipeMode, NULL, NULL)) |
414 | { |
0198fd3c |
415 | listenType = FD_PIPE_SYNC; |
87abe107 |
416 | listenOverlapped.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); |
417 | } |
418 | else |
419 | { |
0198fd3c |
420 | listenType = FD_SOCKET_SYNC; |
421 | } |
422 | } |
423 | |
424 | /* |
425 | * If there are no stdioFds passed in, we're done. |
426 | */ |
427 | if(stdioFds == NULL) { |
428 | libInitialized = 1; |
429 | return 0; |
430 | } |
6ad90ad2 |
431 | |
0198fd3c |
432 | /* |
433 | * Setup standard input asynchronous I/O. There is actually a separate |
434 | * thread spawned for this purpose. The reason for this is that some |
435 | * web servers use anonymous pipes for the connection between itself |
436 | * and a CGI application. Anonymous pipes can't perform asynchronous |
437 | * I/O or use I/O completion ports. Therefore in order to present a |
438 | * consistent I/O dispatch model to an application we emulate I/O |
439 | * completion port behavior by having the standard input thread posting |
440 | * messages to the hIoCompPort which look like a complete overlapped |
441 | * I/O structure. This keeps the event dispatching simple from the |
442 | * application perspective. |
443 | */ |
444 | stdioHandles[STDIN_FILENO] = GetStdHandle(STD_INPUT_HANDLE); |
445 | |
446 | if(!SetHandleInformation(stdioHandles[STDIN_FILENO], |
447 | HANDLE_FLAG_INHERIT, 0)) { |
448 | /* |
449 | * XXX: Causes error when run from command line. Check KB |
450 | err = GetLastError(); |
451 | DebugBreak(); |
452 | exit(99); |
453 | */ |
454 | } |
455 | |
456 | if ((fakeFd = Win32NewDescriptor(FD_PIPE_SYNC, |
457 | (int)stdioHandles[STDIN_FILENO], |
458 | STDIN_FILENO)) == -1) { |
459 | return -1; |
460 | } else { |
461 | /* |
462 | * Set stdin equal to our pseudo FD and create the I/O completion |
463 | * port to be used for async I/O. |
464 | */ |
465 | stdioFds[STDIN_FILENO] = fakeFd; |
466 | } |
467 | |
468 | /* |
469 | * Create the I/O completion port to be used for communicating with |
470 | * the thread doing I/O on standard in. This port will carry read |
471 | * and possibly thread termination requests to the StdinThread. |
472 | */ |
473 | if (hStdinCompPort == INVALID_HANDLE_VALUE) { |
474 | hStdinCompPort = CreateIoCompletionPort (INVALID_HANDLE_VALUE, NULL, |
475 | 0, 1); |
476 | if(hStdinCompPort == INVALID_HANDLE_VALUE) { |
477 | printf("<H2>OS_LibInit Failed CreateIoCompletionPort: STDIN! ERROR: %d</H2>\r\n\r\n", |
478 | GetLastError()); |
479 | return -1; |
480 | } |
481 | } |
482 | |
6ad90ad2 |
483 | /* |
0198fd3c |
484 | * Create the thread that will read stdin if the CONTENT_LENGTH |
485 | * is non-zero. |
486 | */ |
487 | if((cLenPtr = getenv("CONTENT_LENGTH")) != NULL && |
488 | atoi(cLenPtr) > 0) { |
489 | hStdinThread = CreateThread(NULL, 8192, |
490 | (LPTHREAD_START_ROUTINE)&StdinThread, |
491 | NULL, 0, &threadId); |
492 | if (hStdinThread == NULL) { |
493 | printf("<H2>OS_LibInit Failed to create STDIN thread! ERROR: %d</H2>\r\n\r\n", |
494 | GetLastError()); |
495 | return -1; |
496 | } |
497 | } |
498 | |
499 | /* |
500 | * STDOUT will be used synchronously. |
501 | * |
502 | * XXX: May want to convert this so that it could be used for OVERLAPPED |
503 | * I/O later. If so, model it after the Stdin I/O as stdout is |
504 | * also incapable of async I/O on some servers. |
505 | */ |
506 | stdioHandles[STDOUT_FILENO] = GetStdHandle(STD_OUTPUT_HANDLE); |
507 | if(!SetHandleInformation(stdioHandles[STDOUT_FILENO], |
508 | HANDLE_FLAG_INHERIT, FALSE)) { |
509 | DebugBreak(); |
510 | exit(99); |
511 | } |
512 | |
513 | if ((fakeFd = Win32NewDescriptor(FD_PIPE_SYNC, |
514 | (int)stdioHandles[STDOUT_FILENO], |
515 | STDOUT_FILENO)) == -1) { |
516 | return -1; |
517 | } else { |
518 | /* |
519 | * Set stdout equal to our pseudo FD |
520 | */ |
521 | stdioFds[STDOUT_FILENO] = fakeFd; |
522 | } |
523 | |
524 | stdioHandles[STDERR_FILENO] = GetStdHandle(STD_ERROR_HANDLE); |
525 | if(!SetHandleInformation(stdioHandles[STDERR_FILENO], |
526 | HANDLE_FLAG_INHERIT, FALSE)) { |
527 | DebugBreak(); |
528 | exit(99); |
529 | } |
530 | if ((fakeFd = Win32NewDescriptor(FD_PIPE_SYNC, |
531 | (int)stdioHandles[STDERR_FILENO], |
532 | STDERR_FILENO)) == -1) { |
533 | return -1; |
534 | } else { |
535 | /* |
536 | * Set stderr equal to our pseudo FD |
537 | */ |
538 | stdioFds[STDERR_FILENO] = fakeFd; |
539 | } |
540 | |
541 | return 0; |
542 | } |
543 | |
0198fd3c |
544 | /* |
545 | *-------------------------------------------------------------- |
546 | * |
547 | * OS_LibShutdown -- |
548 | * |
549 | * Shutdown the OS library. |
550 | * |
551 | * Results: |
552 | * None. |
553 | * |
554 | * Side effects: |
555 | * Memory freed, handles closed. |
556 | * |
557 | *-------------------------------------------------------------- |
558 | */ |
559 | void OS_LibShutdown() |
560 | { |
561 | |
9bbd33f9 |
562 | if (hIoCompPort != INVALID_HANDLE_VALUE) |
563 | { |
0198fd3c |
564 | CloseHandle(hIoCompPort); |
9bbd33f9 |
565 | hIoCompPort = INVALID_HANDLE_VALUE; |
0198fd3c |
566 | } |
567 | |
9bbd33f9 |
568 | if (hStdinCompPort != INVALID_HANDLE_VALUE) |
569 | { |
0198fd3c |
570 | CloseHandle(hStdinCompPort); |
9bbd33f9 |
571 | hStdinCompPort = INVALID_HANDLE_VALUE; |
0198fd3c |
572 | } |
573 | |
9bbd33f9 |
574 | if (acceptMutex != INVALID_HANDLE_VALUE) |
575 | { |
576 | ReleaseMutex(acceptMutex); |
577 | } |
578 | |
579 | DisconnectNamedPipe(hListen); |
580 | |
581 | CancelIo(hListen); |
582 | |
583 | |
0198fd3c |
584 | WSACleanup(); |
0198fd3c |
585 | } |
586 | |
0198fd3c |
587 | /* |
588 | *-------------------------------------------------------------- |
589 | * |
590 | * Win32FreeDescriptor -- |
591 | * |
592 | * Free I/O descriptor entry in fdTable. |
593 | * |
594 | * Results: |
595 | * Frees I/O descriptor entry in fdTable. |
596 | * |
597 | * Side effects: |
598 | * None. |
599 | * |
600 | *-------------------------------------------------------------- |
601 | */ |
602 | static void Win32FreeDescriptor(int fd) |
603 | { |
604 | /* Catch it if fd is a bogus value */ |
605 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
0198fd3c |
606 | |
73389ec2 |
607 | EnterCriticalSection(&fdTableCritical); |
608 | |
609 | if (fdTable[fd].type != FD_UNUSED) |
610 | { |
611 | switch (fdTable[fd].type) |
612 | { |
613 | case FD_FILE_SYNC: |
614 | case FD_FILE_ASYNC: |
615 | |
616 | /* Free file path string */ |
617 | ASSERT(fdTable[fd].path != NULL); |
618 | free(fdTable[fd].path); |
619 | fdTable[fd].path = NULL; |
620 | break; |
621 | |
622 | default: |
623 | break; |
624 | } |
625 | |
626 | ASSERT(fdTable[fd].path == NULL); |
627 | |
628 | fdTable[fd].type = FD_UNUSED; |
629 | fdTable[fd].path = NULL; |
630 | fdTable[fd].Errno = NO_ERROR; |
631 | fdTable[fd].offsetHighPtr = fdTable[fd].offsetLowPtr = NULL; |
632 | |
633 | if (fdTable[fd].hMapMutex != NULL) |
634 | { |
635 | CloseHandle(fdTable[fd].hMapMutex); |
636 | fdTable[fd].hMapMutex = NULL; |
637 | } |
0198fd3c |
638 | } |
73389ec2 |
639 | |
640 | LeaveCriticalSection(&fdTableCritical); |
641 | |
0198fd3c |
642 | return; |
643 | } |
644 | |
a6b4e4d4 |
645 | static short getPort(const char * bindPath) |
646 | { |
647 | short port = 0; |
648 | char * p = strchr(bindPath, ':'); |
649 | |
650 | if (p && *++p) |
651 | { |
652 | char buf[6]; |
653 | |
654 | strncpy(buf, p, 6); |
655 | buf[5] = '\0'; |
656 | |
bf00339b |
657 | port = (short) atoi(buf); |
a6b4e4d4 |
658 | } |
659 | |
660 | return port; |
661 | } |
662 | |
0198fd3c |
663 | /* |
664 | * OS_CreateLocalIpcFd -- |
665 | * |
666 | * This procedure is responsible for creating the listener pipe |
667 | * on Windows NT for local process communication. It will create a |
668 | * named pipe and return a file descriptor to it to the caller. |
669 | * |
670 | * Results: |
671 | * Listener pipe created. This call returns either a valid |
672 | * pseudo file descriptor or -1 on error. |
673 | * |
674 | * Side effects: |
675 | * Listener pipe and IPC address are stored in the FCGI info |
676 | * structure. |
677 | * 'errno' will set on errors (-1 is returned). |
678 | * |
679 | *---------------------------------------------------------------------- |
680 | */ |
0b7c9662 |
681 | int OS_CreateLocalIpcFd(const char *bindPath, int backlog) |
0198fd3c |
682 | { |
a6b4e4d4 |
683 | int pseudoFd = -1; |
684 | short port = getPort(bindPath); |
87abe107 |
685 | HANDLE mutex = CreateMutex(NULL, FALSE, NULL); |
a6b4e4d4 |
686 | char * mutexEnvString; |
6ad90ad2 |
687 | |
87abe107 |
688 | if (mutex == NULL) |
689 | { |
690 | return -1; |
691 | } |
692 | |
693 | if (! SetHandleInformation(mutex, HANDLE_FLAG_INHERIT, TRUE)) |
694 | { |
695 | return -1; |
696 | } |
697 | |
698 | // This is a nail for listening to more than one port.. |
699 | // This should really be handled by the caller. |
87abe107 |
700 | |
a6b4e4d4 |
701 | mutexEnvString = malloc(strlen(MUTEX_VARNAME) + 7); |
702 | sprintf(mutexEnvString, MUTEX_VARNAME "=%d", (int) mutex); |
703 | putenv(mutexEnvString); |
87abe107 |
704 | |
a6b4e4d4 |
705 | // There's nothing to be gained (at the moment) by a shutdown Event |
87abe107 |
706 | |
a6b4e4d4 |
707 | if (port && *bindPath != ':' && strncmp(bindPath, LOCALHOST, strlen(LOCALHOST))) |
708 | { |
709 | fprintf(stderr, "To start a service on a TCP port can not " |
710 | "specify a host name.\n" |
711 | "You should either use \"localhost:<port>\" or " |
712 | " just use \":<port>.\"\n"); |
713 | exit(1); |
0198fd3c |
714 | } |
a6b4e4d4 |
715 | |
716 | listenType = (port) ? FD_SOCKET_SYNC : FD_PIPE_ASYNC; |
87abe107 |
717 | |
a6b4e4d4 |
718 | if (port) |
719 | { |
720 | SOCKET listenSock; |
721 | struct sockaddr_in sockAddr; |
722 | int sockLen = sizeof(sockAddr); |
723 | |
724 | memset(&sockAddr, 0, sizeof(sockAddr)); |
725 | sockAddr.sin_family = AF_INET; |
726 | sockAddr.sin_addr.s_addr = htonl(INADDR_ANY); |
727 | sockAddr.sin_port = htons(port); |
0198fd3c |
728 | |
a6b4e4d4 |
729 | listenSock = socket(AF_INET, SOCK_STREAM, 0); |
730 | if (listenSock == INVALID_SOCKET) |
731 | { |
732 | return -1; |
733 | } |
0198fd3c |
734 | |
a6b4e4d4 |
735 | if (! bind(listenSock, (struct sockaddr *) &sockAddr, sockLen) |
736 | || ! listen(listenSock, backlog)) |
737 | { |
738 | return -1; |
739 | } |
740 | |
741 | pseudoFd = Win32NewDescriptor(listenType, listenSock, -1); |
742 | |
743 | if (pseudoFd == -1) |
744 | { |
745 | closesocket(listenSock); |
746 | return -1; |
747 | } |
748 | |
749 | hListen = (HANDLE) listenSock; |
0198fd3c |
750 | } |
a6b4e4d4 |
751 | else |
752 | { |
753 | HANDLE hListenPipe = INVALID_HANDLE_VALUE; |
754 | char *pipePath = malloc(strlen(bindPathPrefix) + strlen(bindPath) + 1); |
755 | |
756 | if (! pipePath) |
757 | { |
758 | return -1; |
759 | } |
0198fd3c |
760 | |
a6b4e4d4 |
761 | strcpy(pipePath, bindPathPrefix); |
762 | strcat(pipePath, bindPath); |
6ad90ad2 |
763 | |
a6b4e4d4 |
764 | hListenPipe = CreateNamedPipe(pipePath, |
765 | PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, |
766 | PIPE_TYPE_BYTE | PIPE_WAIT | PIPE_READMODE_BYTE, |
767 | PIPE_UNLIMITED_INSTANCES, |
768 | 4096, 4096, 0, NULL); |
769 | |
770 | free(pipePath); |
6ad90ad2 |
771 | |
a6b4e4d4 |
772 | if (hListenPipe == INVALID_HANDLE_VALUE) |
773 | { |
774 | return -1; |
775 | } |
776 | |
777 | if (! SetHandleInformation(hListenPipe, HANDLE_FLAG_INHERIT, TRUE)) |
778 | { |
779 | return -1; |
780 | } |
781 | |
782 | pseudoFd = Win32NewDescriptor(listenType, (int) hListenPipe, -1); |
783 | |
784 | if (pseudoFd == -1) |
785 | { |
786 | CloseHandle(hListenPipe); |
787 | return -1; |
788 | } |
789 | |
790 | hListen = (HANDLE) hListenPipe; |
0198fd3c |
791 | } |
792 | |
a6b4e4d4 |
793 | return pseudoFd; |
0198fd3c |
794 | } |
795 | |
0198fd3c |
796 | /* |
797 | *---------------------------------------------------------------------- |
798 | * |
799 | * OS_FcgiConnect -- |
800 | * |
801 | * Create the pipe pathname connect to the remote application if |
802 | * possible. |
803 | * |
804 | * Results: |
805 | * -1 if fail or a valid handle if connection succeeds. |
806 | * |
807 | * Side effects: |
808 | * Remote connection established. |
809 | * |
810 | *---------------------------------------------------------------------- |
811 | */ |
812 | int OS_FcgiConnect(char *bindPath) |
813 | { |
a6b4e4d4 |
814 | short port = getPort(bindPath); |
815 | int pseudoFd = -1; |
87abe107 |
816 | |
a6b4e4d4 |
817 | if (port) |
818 | { |
819 | struct hostent *hp; |
820 | char *host = NULL; |
821 | struct sockaddr_in sockAddr; |
822 | int sockLen = sizeof(sockAddr); |
823 | SOCKET sock; |
824 | |
825 | if (*bindPath != ':') |
826 | { |
827 | char * p = strchr(bindPath, ':'); |
828 | int len = p - bindPath + 1; |
6ad90ad2 |
829 | |
a6b4e4d4 |
830 | host = malloc(len); |
831 | strncpy(host, bindPath, len); |
832 | host[len] = '\0'; |
833 | } |
834 | |
835 | hp = gethostbyname(host ? host : LOCALHOST); |
836 | |
837 | if (host) |
838 | { |
839 | free(host); |
840 | } |
841 | |
842 | if (hp == NULL) |
843 | { |
844 | fprintf(stderr, "Unknown host: %s\n", bindPath); |
845 | return -1; |
846 | } |
847 | |
848 | memset(&sockAddr, 0, sizeof(sockAddr)); |
849 | sockAddr.sin_family = AF_INET; |
850 | memcpy(&sockAddr.sin_addr, hp->h_addr, hp->h_length); |
851 | sockAddr.sin_port = htons(port); |
852 | |
853 | sock = socket(AF_INET, SOCK_STREAM, 0); |
854 | if (sock == INVALID_SOCKET) |
855 | { |
856 | return -1; |
857 | } |
858 | |
859 | if (! connect(sock, (struct sockaddr *) &sockAddr, sockLen)) |
860 | { |
861 | closesocket(sock); |
862 | return -1; |
863 | } |
864 | |
865 | pseudoFd = Win32NewDescriptor(FD_SOCKET_SYNC, sock, -1); |
866 | if (pseudoFd == -1) |
867 | { |
868 | closesocket(sock); |
869 | return -1; |
870 | } |
0198fd3c |
871 | } |
a6b4e4d4 |
872 | else |
873 | { |
874 | char *pipePath = malloc(strlen(bindPathPrefix) + strlen(bindPath) + 1); |
875 | HANDLE hPipe; |
876 | |
877 | if (! pipePath) |
878 | { |
879 | return -1; |
880 | } |
0198fd3c |
881 | |
a6b4e4d4 |
882 | strcpy(pipePath, bindPathPrefix); |
883 | strcat(pipePath, bindPath); |
884 | |
885 | hPipe = CreateFile(pipePath, |
886 | GENERIC_WRITE | GENERIC_READ, |
887 | FILE_SHARE_READ | FILE_SHARE_WRITE, |
888 | NULL, |
889 | OPEN_EXISTING, |
890 | FILE_FLAG_OVERLAPPED, |
891 | NULL); |
892 | |
893 | free(pipePath); |
894 | |
895 | if( hPipe == INVALID_HANDLE_VALUE) |
896 | { |
897 | return -1; |
898 | } |
899 | |
900 | pseudoFd = Win32NewDescriptor(FD_PIPE_ASYNC, (int) hPipe, -1); |
901 | |
902 | if (pseudoFd == -1) |
903 | { |
904 | CloseHandle(hPipe); |
905 | return -1; |
906 | } |
907 | |
0198fd3c |
908 | /* |
a6b4e4d4 |
909 | * Set stdin equal to our pseudo FD and create the I/O completion |
910 | * port to be used for async I/O. |
911 | */ |
912 | if (! CreateIoCompletionPort(hPipe, hIoCompPort, pseudoFd, 1)) |
913 | { |
914 | Win32FreeDescriptor(pseudoFd); |
915 | CloseHandle(hPipe); |
916 | return -1; |
917 | } |
0198fd3c |
918 | } |
a6b4e4d4 |
919 | |
920 | return pseudoFd; |
0198fd3c |
921 | } |
6ad90ad2 |
922 | |
0198fd3c |
923 | /* |
924 | *-------------------------------------------------------------- |
925 | * |
926 | * OS_Read -- |
927 | * |
928 | * Pass through to the appropriate NT read function. |
929 | * |
930 | * Results: |
931 | * Returns number of byes read. Mimics unix read:. |
932 | * n bytes read, 0 or -1 failure: errno contains actual error |
933 | * |
934 | * Side effects: |
935 | * None. |
936 | * |
937 | *-------------------------------------------------------------- |
938 | */ |
939 | int OS_Read(int fd, char * buf, size_t len) |
940 | { |
941 | DWORD bytesRead; |
225369c3 |
942 | int ret = -1; |
0198fd3c |
943 | |
0198fd3c |
944 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
945 | |
225369c3 |
946 | switch (fdTable[fd].type) |
947 | { |
0198fd3c |
948 | case FD_FILE_SYNC: |
949 | case FD_FILE_ASYNC: |
950 | case FD_PIPE_SYNC: |
951 | case FD_PIPE_ASYNC: |
225369c3 |
952 | |
953 | if (ReadFile(fdTable[fd].fid.fileHandle, buf, len, &bytesRead, NULL)) |
954 | { |
955 | ret = bytesRead; |
956 | } |
957 | else |
958 | { |
959 | fdTable[fd].Errno = GetLastError(); |
0198fd3c |
960 | } |
225369c3 |
961 | |
962 | break; |
0198fd3c |
963 | |
964 | case FD_SOCKET_SYNC: |
965 | case FD_SOCKET_ASYNC: |
225369c3 |
966 | |
967 | ret = recv(fdTable[fd].fid.sock, buf, len, 0); |
968 | if (ret == SOCKET_ERROR) |
969 | { |
970 | fdTable[fd].Errno = WSAGetLastError(); |
971 | ret = -1; |
0198fd3c |
972 | } |
225369c3 |
973 | |
974 | break; |
975 | |
976 | default: |
977 | |
978 | ASSERT(0); |
0198fd3c |
979 | } |
225369c3 |
980 | |
981 | return ret; |
0198fd3c |
982 | } |
62e100c7 |
983 | |
0198fd3c |
984 | /* |
985 | *-------------------------------------------------------------- |
986 | * |
987 | * OS_Write -- |
988 | * |
989 | * Perform a synchronous OS write. |
990 | * |
991 | * Results: |
992 | * Returns number of bytes written. Mimics unix write: |
993 | * n bytes written, 0 or -1 failure (??? couldn't find man page). |
994 | * |
995 | * Side effects: |
996 | * none. |
997 | * |
998 | *-------------------------------------------------------------- |
999 | */ |
1000 | int OS_Write(int fd, char * buf, size_t len) |
1001 | { |
1002 | DWORD bytesWritten; |
225369c3 |
1003 | int ret = -1; |
0198fd3c |
1004 | |
225369c3 |
1005 | ASSERT(fd >= 0 && fd < WIN32_OPEN_MAX); |
0198fd3c |
1006 | |
225369c3 |
1007 | switch (fdTable[fd].type) |
1008 | { |
0198fd3c |
1009 | case FD_FILE_SYNC: |
1010 | case FD_FILE_ASYNC: |
1011 | case FD_PIPE_SYNC: |
1012 | case FD_PIPE_ASYNC: |
225369c3 |
1013 | |
1014 | if (WriteFile(fdTable[fd].fid.fileHandle, buf, len, &bytesWritten, NULL)) |
1015 | { |
1016 | ret = bytesWritten; |
1017 | } |
1018 | else |
1019 | { |
1020 | fdTable[fd].Errno = GetLastError(); |
0198fd3c |
1021 | } |
225369c3 |
1022 | |
1023 | break; |
1024 | |
0198fd3c |
1025 | case FD_SOCKET_SYNC: |
1026 | case FD_SOCKET_ASYNC: |
225369c3 |
1027 | |
1028 | ret = send(fdTable[fd].fid.sock, buf, len, 0); |
1029 | if (ret == SOCKET_ERROR) |
1030 | { |
1031 | fdTable[fd].Errno = WSAGetLastError(); |
1032 | ret = -1; |
0198fd3c |
1033 | } |
225369c3 |
1034 | |
1035 | break; |
1036 | |
1037 | default: |
1038 | |
1039 | ASSERT(0); |
0198fd3c |
1040 | } |
225369c3 |
1041 | |
1042 | return ret; |
0198fd3c |
1043 | } |
1044 | |
0198fd3c |
1045 | /* |
1046 | *---------------------------------------------------------------------- |
1047 | * |
1048 | * OS_SpawnChild -- |
1049 | * |
1050 | * Spawns a new server listener process, and stores the information |
1051 | * relating to the child in the supplied record. A wait handler is |
1052 | * registered on the child's completion. This involves creating |
1053 | * a process on NT and preparing a command line with the required |
1054 | * state (currently a -childproc flag and the server socket to use |
1055 | * for accepting connections). |
1056 | * |
1057 | * Results: |
1058 | * 0 if success, -1 if error. |
1059 | * |
1060 | * Side effects: |
1061 | * Child process spawned. |
1062 | * |
1063 | *---------------------------------------------------------------------- |
1064 | */ |
1065 | int OS_SpawnChild(char *execPath, int listenFd) |
1066 | { |
1067 | STARTUPINFO StartupInfo; |
1068 | PROCESS_INFORMATION pInfo; |
1069 | BOOL success; |
1070 | |
1071 | memset((void *)&StartupInfo, 0, sizeof(STARTUPINFO)); |
1072 | StartupInfo.cb = sizeof (STARTUPINFO); |
1073 | StartupInfo.lpReserved = NULL; |
1074 | StartupInfo.lpReserved2 = NULL; |
1075 | StartupInfo.cbReserved2 = 0; |
1076 | StartupInfo.lpDesktop = NULL; |
1077 | |
1078 | /* |
1079 | * FastCGI on NT will set the listener pipe HANDLE in the stdin of |
1080 | * the new process. The fact that there is a stdin and NULL handles |
1081 | * for stdout and stderr tells the FastCGI process that this is a |
1082 | * FastCGI process and not a CGI process. |
1083 | */ |
1084 | StartupInfo.dwFlags = STARTF_USESTDHANDLES; |
1085 | /* |
1086 | * XXX: Do I have to dup the handle before spawning the process or is |
1087 | * it sufficient to use the handle as it's reference counted |
1088 | * by NT anyway? |
1089 | */ |
1090 | StartupInfo.hStdInput = fdTable[listenFd].fid.fileHandle; |
1091 | StartupInfo.hStdOutput = INVALID_HANDLE_VALUE; |
1092 | StartupInfo.hStdError = INVALID_HANDLE_VALUE; |
6ad90ad2 |
1093 | |
0198fd3c |
1094 | /* |
1095 | * Make the listener socket inheritable. |
1096 | */ |
1097 | success = SetHandleInformation(StartupInfo.hStdInput, HANDLE_FLAG_INHERIT, |
1098 | TRUE); |
1099 | if(!success) { |
1100 | exit(99); |
1101 | } |
1102 | |
1103 | /* |
1104 | * XXX: Might want to apply some specific security attributes to the |
1105 | * processes. |
1106 | */ |
1107 | success = CreateProcess(execPath, /* LPCSTR address of module name */ |
1108 | NULL, /* LPCSTR address of command line */ |
6ad90ad2 |
1109 | NULL, /* Process security attributes */ |
0198fd3c |
1110 | NULL, /* Thread security attributes */ |
1111 | TRUE, /* Inheritable Handes inherited. */ |
1112 | 0, /* DWORD creation flags */ |
1113 | NULL, /* Use parent environment block */ |
1114 | NULL, /* Address of current directory name */ |
1115 | &StartupInfo, /* Address of STARTUPINFO */ |
1116 | &pInfo); /* Address of PROCESS_INFORMATION */ |
1117 | if(success) { |
1118 | return 0; |
1119 | } else { |
1120 | return -1; |
1121 | } |
1122 | } |
1123 | |
0198fd3c |
1124 | /* |
1125 | *-------------------------------------------------------------- |
1126 | * |
1127 | * OS_AsyncReadStdin -- |
1128 | * |
1129 | * This initiates an asynchronous read on the standard |
1130 | * input handle. This handle is not guaranteed to be |
6ad90ad2 |
1131 | * capable of performing asynchronous I/O so we send a |
0198fd3c |
1132 | * message to the StdinThread to do the synchronous read. |
1133 | * |
1134 | * Results: |
1135 | * -1 if error, 0 otherwise. |
1136 | * |
1137 | * Side effects: |
1138 | * Asynchronous message is queued to the StdinThread and an |
1139 | * overlapped structure is allocated/initialized. |
1140 | * |
1141 | *-------------------------------------------------------------- |
1142 | */ |
6ad90ad2 |
1143 | int OS_AsyncReadStdin(void *buf, int len, OS_AsyncProc procPtr, |
0198fd3c |
1144 | ClientData clientData) |
1145 | { |
1146 | POVERLAPPED_REQUEST pOv; |
1147 | |
1148 | ASSERT(fdTable[STDIN_FILENO].type != FD_UNUSED); |
1149 | |
1150 | pOv = (POVERLAPPED_REQUEST)malloc(sizeof(struct OVERLAPPED_REQUEST)); |
1151 | ASSERT(pOv); |
1152 | memset((void *)pOv, 0, sizeof(struct OVERLAPPED_REQUEST)); |
1153 | pOv->clientData1 = (ClientData)buf; |
1154 | pOv->instance = fdTable[STDIN_FILENO].instance; |
1155 | pOv->procPtr = procPtr; |
1156 | pOv->clientData = clientData; |
1157 | |
1158 | PostQueuedCompletionStatus(hStdinCompPort, len, STDIN_FILENO, |
1159 | (LPOVERLAPPED)pOv); |
1160 | return 0; |
1161 | } |
1162 | |
0198fd3c |
1163 | /* |
1164 | *-------------------------------------------------------------- |
1165 | * |
1166 | * OS_AsyncRead -- |
1167 | * |
1168 | * This initiates an asynchronous read on the file |
1169 | * handle which may be a socket or named pipe. |
1170 | * |
1171 | * We also must save the ProcPtr and ClientData, so later |
1172 | * when the io completes, we know who to call. |
1173 | * |
1174 | * We don't look at any results here (the ReadFile may |
1175 | * return data if it is cached) but do all completion |
1176 | * processing in OS_Select when we get the io completion |
1177 | * port done notifications. Then we call the callback. |
1178 | * |
1179 | * Results: |
1180 | * -1 if error, 0 otherwise. |
1181 | * |
1182 | * Side effects: |
1183 | * Asynchronous I/O operation is queued for completion. |
1184 | * |
1185 | *-------------------------------------------------------------- |
1186 | */ |
1187 | int OS_AsyncRead(int fd, int offset, void *buf, int len, |
1188 | OS_AsyncProc procPtr, ClientData clientData) |
1189 | { |
1190 | DWORD bytesRead; |
1191 | POVERLAPPED_REQUEST pOv; |
1192 | |
1193 | /* |
1194 | * Catch any bogus fd values |
1195 | */ |
1196 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
1197 | /* |
1198 | * Confirm that this is an async fd |
1199 | */ |
1200 | ASSERT(fdTable[fd].type != FD_UNUSED); |
1201 | ASSERT(fdTable[fd].type != FD_FILE_SYNC); |
1202 | ASSERT(fdTable[fd].type != FD_PIPE_SYNC); |
1203 | ASSERT(fdTable[fd].type != FD_SOCKET_SYNC); |
1204 | |
1205 | pOv = (POVERLAPPED_REQUEST)malloc(sizeof(struct OVERLAPPED_REQUEST)); |
1206 | ASSERT(pOv); |
1207 | memset((void *)pOv, 0, sizeof(struct OVERLAPPED_REQUEST)); |
1208 | /* |
1209 | * Only file offsets should be non-zero, but make sure. |
1210 | */ |
1211 | if (fdTable[fd].type == FD_FILE_ASYNC) |
1212 | if (fdTable[fd].offset >= 0) |
1213 | pOv->overlapped.Offset = fdTable[fd].offset; |
1214 | else |
1215 | pOv->overlapped.Offset = offset; |
1216 | pOv->instance = fdTable[fd].instance; |
1217 | pOv->procPtr = procPtr; |
1218 | pOv->clientData = clientData; |
1219 | bytesRead = fd; |
1220 | /* |
1221 | * ReadFile returns: TRUE success, FALSE failure |
1222 | */ |
1223 | if (!ReadFile(fdTable[fd].fid.fileHandle, buf, len, &bytesRead, |
1224 | (LPOVERLAPPED)pOv)) { |
1225 | fdTable[fd].Errno = GetLastError(); |
1226 | if(fdTable[fd].Errno == ERROR_NO_DATA || |
1227 | fdTable[fd].Errno == ERROR_PIPE_NOT_CONNECTED) { |
1228 | PostQueuedCompletionStatus(hIoCompPort, 0, fd, (LPOVERLAPPED)pOv); |
1229 | return 0; |
1230 | } |
1231 | if(fdTable[fd].Errno != ERROR_IO_PENDING) { |
1232 | PostQueuedCompletionStatus(hIoCompPort, 0, fd, (LPOVERLAPPED)pOv); |
1233 | return -1; |
1234 | } |
1235 | fdTable[fd].Errno = 0; |
1236 | } |
1237 | return 0; |
1238 | } |
62e100c7 |
1239 | |
0198fd3c |
1240 | /* |
1241 | *-------------------------------------------------------------- |
1242 | * |
1243 | * OS_AsyncWrite -- |
1244 | * |
1245 | * This initiates an asynchronous write on the "fake" file |
1246 | * descriptor (which may be a file, socket, or named pipe). |
1247 | * We also must save the ProcPtr and ClientData, so later |
1248 | * when the io completes, we know who to call. |
1249 | * |
1250 | * We don't look at any results here (the WriteFile generally |
1251 | * completes immediately) but do all completion processing |
1252 | * in OS_DoIo when we get the io completion port done |
1253 | * notifications. Then we call the callback. |
1254 | * |
1255 | * Results: |
1256 | * -1 if error, 0 otherwise. |
1257 | * |
1258 | * Side effects: |
1259 | * Asynchronous I/O operation is queued for completion. |
1260 | * |
1261 | *-------------------------------------------------------------- |
1262 | */ |
6ad90ad2 |
1263 | int OS_AsyncWrite(int fd, int offset, void *buf, int len, |
0198fd3c |
1264 | OS_AsyncProc procPtr, ClientData clientData) |
1265 | { |
1266 | DWORD bytesWritten; |
1267 | POVERLAPPED_REQUEST pOv; |
1268 | |
1269 | /* |
1270 | * Catch any bogus fd values |
1271 | */ |
1272 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
1273 | /* |
1274 | * Confirm that this is an async fd |
1275 | */ |
1276 | ASSERT(fdTable[fd].type != FD_UNUSED); |
1277 | ASSERT(fdTable[fd].type != FD_FILE_SYNC); |
1278 | ASSERT(fdTable[fd].type != FD_PIPE_SYNC); |
1279 | ASSERT(fdTable[fd].type != FD_SOCKET_SYNC); |
1280 | |
1281 | pOv = (POVERLAPPED_REQUEST)malloc(sizeof(struct OVERLAPPED_REQUEST)); |
1282 | ASSERT(pOv); |
1283 | memset((void *)pOv, 0, sizeof(struct OVERLAPPED_REQUEST)); |
1284 | /* |
1285 | * Only file offsets should be non-zero, but make sure. |
1286 | */ |
1287 | if (fdTable[fd].type == FD_FILE_ASYNC) |
6ad90ad2 |
1288 | /* |
0198fd3c |
1289 | * Only file opened via OS_AsyncWrite with |
1290 | * O_APPEND will have an offset != -1. |
1291 | */ |
1292 | if (fdTable[fd].offset >= 0) |
6ad90ad2 |
1293 | /* |
0198fd3c |
1294 | * If the descriptor has a memory mapped file |
1295 | * handle, take the offsets from there. |
1296 | */ |
1297 | if (fdTable[fd].hMapMutex != NULL) { |
1298 | /* |
1299 | * Wait infinitely; this *should* not cause problems. |
6ad90ad2 |
1300 | */ |
0198fd3c |
1301 | WaitForSingleObject(fdTable[fd].hMapMutex, INFINITE); |
6ad90ad2 |
1302 | |
0198fd3c |
1303 | /* |
1304 | * Retrieve the shared offset values. |
1305 | */ |
1306 | pOv->overlapped.OffsetHigh = *(fdTable[fd].offsetHighPtr); |
1307 | pOv->overlapped.Offset = *(fdTable[fd].offsetLowPtr); |
6ad90ad2 |
1308 | |
0198fd3c |
1309 | /* |
1310 | * Update the shared offset values for the next write |
1311 | */ |
1312 | *(fdTable[fd].offsetHighPtr) += 0; /* XXX How do I handle overflow */ |
1313 | *(fdTable[fd].offsetLowPtr) += len; |
6ad90ad2 |
1314 | |
0198fd3c |
1315 | ReleaseMutex(fdTable[fd].hMapMutex); |
6ad90ad2 |
1316 | } else |
0198fd3c |
1317 | pOv->overlapped.Offset = fdTable[fd].offset; |
1318 | else |
1319 | pOv->overlapped.Offset = offset; |
1320 | pOv->instance = fdTable[fd].instance; |
1321 | pOv->procPtr = procPtr; |
1322 | pOv->clientData = clientData; |
1323 | bytesWritten = fd; |
1324 | /* |
1325 | * WriteFile returns: TRUE success, FALSE failure |
1326 | */ |
1327 | if (!WriteFile(fdTable[fd].fid.fileHandle, buf, len, &bytesWritten, |
1328 | (LPOVERLAPPED)pOv)) { |
1329 | fdTable[fd].Errno = GetLastError(); |
1330 | if(fdTable[fd].Errno != ERROR_IO_PENDING) { |
1331 | PostQueuedCompletionStatus(hIoCompPort, 0, fd, (LPOVERLAPPED)pOv); |
1332 | return -1; |
1333 | } |
1334 | fdTable[fd].Errno = 0; |
1335 | } |
1336 | if (fdTable[fd].offset >= 0) |
1337 | fdTable[fd].offset += len; |
1338 | return 0; |
1339 | } |
1340 | |
0198fd3c |
1341 | /* |
1342 | *-------------------------------------------------------------- |
1343 | * |
1344 | * OS_Close -- |
1345 | * |
1346 | * Closes the descriptor with routine appropriate for |
1347 | * descriptor's type. |
1348 | * |
1349 | * Results: |
1350 | * Socket or file is closed. Return values mimic Unix close: |
1351 | * 0 success, -1 failure |
1352 | * |
1353 | * Side effects: |
1354 | * Entry in fdTable is marked as free. |
1355 | * |
1356 | *-------------------------------------------------------------- |
1357 | */ |
1358 | int OS_Close(int fd) |
1359 | { |
1360 | int ret = 0; |
1361 | |
1362 | /* |
1363 | * Catch it if fd is a bogus value |
1364 | */ |
1365 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
1366 | ASSERT(fdTable[fd].type != FD_UNUSED); |
1367 | |
1368 | switch (fdTable[fd].type) { |
1369 | case FD_PIPE_SYNC: |
1370 | case FD_PIPE_ASYNC: |
1371 | case FD_FILE_SYNC: |
1372 | case FD_FILE_ASYNC: |
0198fd3c |
1373 | break; |
87abe107 |
1374 | |
1375 | case FD_SOCKET_SYNC: |
0198fd3c |
1376 | case FD_SOCKET_ASYNC: |
1377 | /* |
1378 | * Closing a socket that has an async read outstanding causes a |
1379 | * tcp reset and possible data loss. The shutdown call seems to |
1380 | * prevent this. |
1381 | */ |
1382 | shutdown(fdTable[fd].fid.sock, 2); |
1383 | /* |
1384 | * closesocket returns: 0 success, SOCKET_ERROR failure |
1385 | */ |
1386 | if (closesocket(fdTable[fd].fid.sock) == SOCKET_ERROR) |
1387 | ret = -1; |
1388 | break; |
1389 | default: |
1390 | return -1; /* fake failure */ |
1391 | } |
1392 | |
1393 | Win32FreeDescriptor(fd); |
1394 | return ret; |
1395 | } |
62e100c7 |
1396 | |
0198fd3c |
1397 | /* |
1398 | *-------------------------------------------------------------- |
1399 | * |
1400 | * OS_CloseRead -- |
1401 | * |
1402 | * Cancel outstanding asynchronous reads and prevent subsequent |
1403 | * reads from completing. |
1404 | * |
1405 | * Results: |
1406 | * Socket or file is shutdown. Return values mimic Unix shutdown: |
1407 | * 0 success, -1 failure |
1408 | * |
1409 | *-------------------------------------------------------------- |
1410 | */ |
1411 | int OS_CloseRead(int fd) |
1412 | { |
1413 | int ret = 0; |
1414 | |
1415 | /* |
1416 | * Catch it if fd is a bogus value |
1417 | */ |
1418 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
1419 | ASSERT(fdTable[fd].type == FD_SOCKET_ASYNC |
1420 | || fdTable[fd].type == FD_SOCKET_SYNC); |
1421 | |
1422 | if (shutdown(fdTable[fd].fid.sock,0) == SOCKET_ERROR) |
1423 | ret = -1; |
1424 | return ret; |
1425 | } |
62e100c7 |
1426 | |
0198fd3c |
1427 | /* |
1428 | *-------------------------------------------------------------- |
1429 | * |
1430 | * OS_DoIo -- |
1431 | * |
1432 | * This function was formerly OS_Select. It's purpose is |
1433 | * to pull I/O completion events off the queue and dispatch |
1434 | * them to the appropriate place. |
1435 | * |
1436 | * Results: |
1437 | * Returns 0. |
1438 | * |
1439 | * Side effects: |
1440 | * Handlers are called. |
1441 | * |
1442 | *-------------------------------------------------------------- |
1443 | */ |
1444 | int OS_DoIo(struct timeval *tmo) |
1445 | { |
bf00339b |
1446 | unsigned long fd; |
1447 | unsigned long bytes; |
0198fd3c |
1448 | POVERLAPPED_REQUEST pOv; |
1449 | struct timeb tb; |
1450 | int ms; |
1451 | int ms_last; |
1452 | int err; |
6ad90ad2 |
1453 | |
0198fd3c |
1454 | /* XXX |
1455 | * We can loop in here, but not too long, as wait handlers |
1456 | * must run. |
1457 | * For cgi stdin, apparently select returns when io completion |
1458 | * ports don't, so don't wait the full timeout. |
1459 | */ |
1460 | if(tmo) |
1461 | ms = (tmo->tv_sec*1000 + tmo->tv_usec/1000) / 2; |
1462 | else |
1463 | ms = 1000; |
1464 | ftime(&tb); |
1465 | ms_last = tb.time*1000 + tb.millitm; |
1466 | while (ms >= 0) { |
1467 | if(tmo && (ms = tmo->tv_sec*1000 + tmo->tv_usec/1000)> 100) |
1468 | ms = 100; |
1469 | if (!GetQueuedCompletionStatus(hIoCompPort, &bytes, &fd, |
1470 | (LPOVERLAPPED *)&pOv, ms) && !pOv) { |
1471 | err = WSAGetLastError(); |
1472 | return 0; /* timeout */ |
1473 | } |
6ad90ad2 |
1474 | |
0198fd3c |
1475 | ASSERT((fd >= 0) && (fd < WIN32_OPEN_MAX)); |
1476 | /* call callback if descriptor still valid */ |
1477 | ASSERT(pOv); |
1478 | if(pOv->instance == fdTable[fd].instance) |
1479 | (*pOv->procPtr)(pOv->clientData, bytes); |
1480 | free(pOv); |
1481 | |
1482 | ftime(&tb); |
1483 | ms -= (tb.time*1000 + tb.millitm - ms_last); |
1484 | ms_last = tb.time*1000 + tb.millitm; |
1485 | } |
1486 | return 0; |
1487 | } |
1488 | |
87abe107 |
1489 | |
1490 | static int CALLBACK isAddrOK(LPWSABUF lpCallerId, |
1491 | LPWSABUF dc0, |
1492 | LPQOS dc1, |
1493 | LPQOS dc2, |
1494 | LPWSABUF dc3, |
1495 | LPWSABUF dc4, |
1496 | GROUP *dc5, |
1497 | DWORD dwCallbackData) |
1498 | { |
1499 | const char *okAddrs = (char *) dwCallbackData; |
1500 | struct sockaddr *sockaddr = (struct sockaddr *) lpCallerId->buf; |
1501 | |
bf00339b |
1502 | // Touch the args to avoid warnings |
1503 | dc0 = NULL; dc1 = NULL; dc2 = NULL; dc3 = NULL; dc4 = NULL; dc5 = NULL; |
1504 | |
87abe107 |
1505 | if (okAddrs == NULL || sockaddr->sa_family != AF_INET) |
1506 | { |
1507 | return TRUE; |
1508 | } |
1509 | else |
1510 | { |
1511 | static const char *token = " ,;:\t"; |
1512 | struct sockaddr_in * inet_sockaddr = (struct sockaddr_in *) sockaddr; |
1513 | char *ipaddr = inet_ntoa(inet_sockaddr->sin_addr); |
1514 | char *p = strstr(okAddrs, ipaddr); |
1515 | |
1516 | if (p == NULL) |
1517 | { |
1518 | return FALSE; |
1519 | } |
1520 | else if (p == okAddrs) |
1521 | { |
1522 | p += strlen(ipaddr); |
1523 | return (strchr(token, *p) != NULL); |
1524 | } |
1525 | else if (strchr(token, *--p)) |
1526 | { |
1527 | p += strlen(ipaddr) + 1; |
1528 | return (strchr(token, *p) != NULL); |
1529 | } |
1530 | else |
1531 | { |
1532 | return FALSE; |
1533 | } |
1534 | } |
1535 | } |
9bbd33f9 |
1536 | |
1537 | static printLastError(const char * text) |
1538 | { |
1539 | LPVOID buf; |
1540 | |
1541 | FormatMessage( |
1542 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
1543 | FORMAT_MESSAGE_FROM_SYSTEM | |
1544 | FORMAT_MESSAGE_IGNORE_INSERTS, |
1545 | NULL, |
1546 | GetLastError(), |
1547 | 0, |
1548 | (LPTSTR) &buf, |
1549 | 0, |
1550 | NULL |
1551 | ); |
1552 | |
1553 | fprintf(stderr, "%s: %s\n", text, (LPCTSTR) buf); |
1554 | LocalFree(buf); |
1555 | } |
1556 | |
1557 | static int acceptNamedPipe() |
1558 | { |
1559 | int ipcFd = -1; |
1560 | |
1561 | if (! ConnectNamedPipe(hListen, &listenOverlapped)) |
1562 | { |
1563 | switch (GetLastError()) |
1564 | { |
1565 | case ERROR_PIPE_CONNECTED: |
1566 | |
1567 | // A client connected after CreateNamedPipe but |
1568 | // before ConnectNamedPipe. Its a good connection. |
1569 | |
1570 | break; |
1571 | |
1572 | case ERROR_IO_PENDING: |
1573 | |
1574 | // Wait for a connection to complete. |
1575 | |
1576 | while (WaitForSingleObject(listenOverlapped.hEvent, |
1577 | ACCEPT_TIMEOUT) == WAIT_TIMEOUT) |
1578 | { |
1579 | if (shutdownPending) |
1580 | { |
1581 | OS_LibShutdown(); |
1582 | return -1; |
1583 | } |
1584 | } |
1585 | |
1586 | break; |
1587 | |
1588 | case ERROR_PIPE_LISTENING: |
1589 | |
1590 | // The pipe handle is in nonblocking mode. |
1591 | |
1592 | case ERROR_NO_DATA: |
1593 | |
1594 | // The previous client closed its handle (and we failed |
1595 | // to call DisconnectNamedPipe) |
1596 | |
1597 | default: |
1598 | |
1599 | printLastError("unexpected ConnectNamedPipe() error"); |
1600 | } |
1601 | } |
1602 | |
1603 | ipcFd = Win32NewDescriptor(FD_PIPE_SYNC, (int) hListen, -1); |
1604 | if (ipcFd == -1) |
1605 | { |
1606 | DisconnectNamedPipe(hListen); |
1607 | } |
1608 | |
1609 | return ipcFd; |
1610 | } |
1611 | |
1612 | static int acceptSocket(const char *webServerAddrs) |
1613 | { |
1614 | struct sockaddr sockaddr; |
1615 | int sockaddrLen = sizeof(sockaddr); |
1616 | fd_set readfds; |
1617 | const struct timeval timeout = {1, 0}; |
1618 | SOCKET hSock; |
1619 | int ipcFd = -1; |
1620 | |
1621 | FD_ZERO(&readfds); |
1622 | FD_SET((unsigned int) hListen, &readfds); |
1623 | |
1624 | while (select(0, &readfds, NULL, NULL, &timeout) == 0) |
1625 | { |
1626 | if (shutdownPending) |
1627 | { |
1628 | OS_LibShutdown(); |
1629 | return -1; |
1630 | } |
1631 | } |
1632 | |
1633 | hSock = (webServerAddrs == NULL) |
1634 | ? accept((SOCKET) hListen, |
1635 | &sockaddr, |
1636 | &sockaddrLen) |
1637 | : WSAAccept((unsigned int) hListen, |
1638 | &sockaddr, |
1639 | &sockaddrLen, |
1640 | isAddrOK, |
1641 | (DWORD) webServerAddrs); |
1642 | |
1643 | |
1644 | if (hSock == INVALID_SOCKET) |
1645 | { |
1646 | // Can I use FormatMessage()? |
1647 | fprintf(stderr, "accept()/WSAAccept() failed: %d", WSAGetLastError()); |
1648 | return -1; |
1649 | } |
87abe107 |
1650 | |
9bbd33f9 |
1651 | ipcFd = Win32NewDescriptor(FD_SOCKET_SYNC, hSock, -1); |
1652 | if (ipcFd == -1) |
1653 | { |
1654 | closesocket(hSock); |
1655 | } |
1656 | |
1657 | return ipcFd; |
1658 | } |
1659 | |
0198fd3c |
1660 | /* |
1661 | *---------------------------------------------------------------------- |
1662 | * |
0b7c9662 |
1663 | * OS_Accept -- |
0198fd3c |
1664 | * |
9bbd33f9 |
1665 | * Accepts a new FastCGI connection. This routine knows whether |
1666 | * we're dealing with TCP based sockets or NT Named Pipes for IPC. |
1667 | * |
1668 | * fail_on_intr is ignored in the Win lib. |
0198fd3c |
1669 | * |
1670 | * Results: |
1671 | * -1 if the operation fails, otherwise this is a valid IPC fd. |
1672 | * |
0198fd3c |
1673 | *---------------------------------------------------------------------- |
1674 | */ |
1dd5d7a8 |
1675 | int OS_Accept(int listen_sock, int fail_on_intr, const char *webServerAddrs) |
0198fd3c |
1676 | { |
0198fd3c |
1677 | int ipcFd = -1; |
9bbd33f9 |
1678 | |
bf00339b |
1679 | // Touch args to prevent warnings |
1680 | listen_sock = 0; fail_on_intr = 0; |
1681 | |
9bbd33f9 |
1682 | // @todo Muliple listen sockets and sockets other than 0 are not |
1683 | // supported due to the use of globals. |
0198fd3c |
1684 | |
87abe107 |
1685 | if (shutdownPending) |
1686 | { |
9bbd33f9 |
1687 | OS_LibShutdown(); |
87abe107 |
1688 | return -1; |
1689 | } |
0198fd3c |
1690 | |
87abe107 |
1691 | // The mutex is to keep other processes (and threads, when supported) |
1692 | // from going into the accept cycle. The accept cycle needs to |
1693 | // periodically break out to check the state of the shutdown flag |
1694 | // and there's no point to having more than one thread do that. |
1695 | |
1696 | if (acceptMutex != INVALID_HANDLE_VALUE) |
1697 | { |
1698 | if (WaitForSingleObject(acceptMutex, INFINITE) == WAIT_FAILED) |
1699 | { |
9bbd33f9 |
1700 | printLastError("WaitForSingleObject() failed"); |
0198fd3c |
1701 | return -1; |
1702 | } |
87abe107 |
1703 | } |
1704 | |
1705 | if (shutdownPending) |
1706 | { |
9bbd33f9 |
1707 | OS_LibShutdown(); |
87abe107 |
1708 | } |
9bbd33f9 |
1709 | else if (listenType == FD_PIPE_SYNC) |
87abe107 |
1710 | { |
9bbd33f9 |
1711 | ipcFd = acceptNamedPipe(); |
0198fd3c |
1712 | } |
87abe107 |
1713 | else if (listenType == FD_SOCKET_SYNC) |
1714 | { |
9bbd33f9 |
1715 | ipcFd = acceptSocket(webServerAddrs); |
0198fd3c |
1716 | } |
87abe107 |
1717 | else |
1718 | { |
9bbd33f9 |
1719 | fprintf(stderr, "unknown listenType (%d)\n", listenType); |
87abe107 |
1720 | } |
1721 | |
9bbd33f9 |
1722 | if (acceptMutex != INVALID_HANDLE_VALUE) |
1723 | { |
1724 | ReleaseMutex(acceptMutex); |
1725 | } |
1726 | |
87abe107 |
1727 | return ipcFd; |
0198fd3c |
1728 | } |
62e100c7 |
1729 | |
0198fd3c |
1730 | /* |
1731 | *---------------------------------------------------------------------- |
1732 | * |
1733 | * OS_IpcClose |
1734 | * |
1735 | * OS IPC routine to close an IPC connection. |
1736 | * |
1737 | * Results: |
1738 | * |
1739 | * |
1740 | * Side effects: |
1741 | * IPC connection is closed. |
1742 | * |
1743 | *---------------------------------------------------------------------- |
1744 | */ |
1745 | int OS_IpcClose(int ipcFd) |
1746 | { |
8462b1ec |
1747 | if (ipcFd == -1) |
1748 | return 0; |
1749 | |
0198fd3c |
1750 | /* |
1751 | * Catch it if fd is a bogus value |
1752 | */ |
1753 | ASSERT((ipcFd >= 0) && (ipcFd < WIN32_OPEN_MAX)); |
1754 | ASSERT(fdTable[ipcFd].type != FD_UNUSED); |
1755 | |
1756 | switch(listenType) { |
1757 | |
1758 | case FD_PIPE_SYNC: |
1759 | /* |
1760 | * Make sure that the client (ie. a Web Server in this case) has |
1761 | * read all data from the pipe before we disconnect. |
1762 | */ |
1763 | if(!FlushFileBuffers(fdTable[ipcFd].fid.fileHandle)) |
1764 | return -1; |
1765 | if(DisconnectNamedPipe(fdTable[ipcFd].fid.fileHandle)) { |
1766 | OS_Close(ipcFd); |
1767 | return 0; |
1768 | } else { |
1769 | return -1; |
1770 | } |
1771 | break; |
1772 | |
1773 | case FD_SOCKET_SYNC: |
1774 | OS_Close(ipcFd); |
3bc7b7d9 |
1775 | return 0; |
0198fd3c |
1776 | break; |
1777 | |
1778 | case FD_UNUSED: |
1779 | default: |
1780 | exit(106); |
1781 | break; |
1782 | } |
0198fd3c |
1783 | } |
1784 | |
0198fd3c |
1785 | /* |
1786 | *---------------------------------------------------------------------- |
1787 | * |
1788 | * OS_IsFcgi -- |
1789 | * |
1790 | * Determines whether this process is a FastCGI process or not. |
1791 | * |
1792 | * Results: |
1793 | * Returns 1 if FastCGI, 0 if not. |
1794 | * |
1795 | * Side effects: |
1796 | * None. |
1797 | * |
1798 | *---------------------------------------------------------------------- |
1799 | */ |
0b7c9662 |
1800 | int OS_IsFcgi(int sock) |
0198fd3c |
1801 | { |
bf00339b |
1802 | // Touch args to prevent warnings |
1803 | sock = 0; |
1804 | |
0394d3a2 |
1805 | /* XXX This is broken for sock */ |
1806 | |
1807 | return (listenType != FD_UNUSED); |
0198fd3c |
1808 | } |
1809 | |
0198fd3c |
1810 | /* |
1811 | *---------------------------------------------------------------------- |
1812 | * |
1813 | * OS_SetFlags -- |
1814 | * |
1815 | * Sets selected flag bits in an open file descriptor. Currently |
1816 | * this is only to put a SOCKET into non-blocking mode. |
1817 | * |
1818 | *---------------------------------------------------------------------- |
1819 | */ |
1820 | void OS_SetFlags(int fd, int flags) |
1821 | { |
3bc7b7d9 |
1822 | unsigned long pLong = 1L; |
0198fd3c |
1823 | int err; |
6ad90ad2 |
1824 | |
3bc7b7d9 |
1825 | if (fdTable[fd].type == FD_SOCKET_SYNC && flags == O_NONBLOCK) { |
0198fd3c |
1826 | if (ioctlsocket(fdTable[fd].fid.sock, FIONBIO, &pLong) == |
1827 | SOCKET_ERROR) { |
1828 | exit(WSAGetLastError()); |
1829 | } |
1830 | if (!CreateIoCompletionPort((HANDLE)fdTable[fd].fid.sock, |
1831 | hIoCompPort, fd, 1)) { |
1832 | err = GetLastError(); |
1833 | exit(err); |
1834 | } |
1835 | |
1836 | fdTable[fd].type = FD_SOCKET_ASYNC; |
1837 | } |
1838 | return; |
1839 | } |
1840 | |