The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1 | #include "sysdeps.h" |
| 2 | #include <windows.h> |
| 3 | #include <winsock2.h> |
| 4 | #include <stdio.h> |
| 5 | #include <errno.h> |
| 6 | #define TRACE_TAG TRACE_SYSDEPS |
| 7 | #include "adb.h" |
| 8 | |
| 9 | extern void fatal(const char *fmt, ...); |
| 10 | |
| 11 | #define assert(cond) do { if (!(cond)) fatal( "assertion failed '%s' on %s:%ld\n", #cond, __FILE__, __LINE__ ); } while (0) |
| 12 | |
| 13 | /**************************************************************************/ |
| 14 | /**************************************************************************/ |
| 15 | /***** *****/ |
| 16 | /***** replaces libs/cutils/load_file.c *****/ |
| 17 | /***** *****/ |
| 18 | /**************************************************************************/ |
| 19 | /**************************************************************************/ |
| 20 | |
| 21 | void *load_file(const char *fn, unsigned *_sz) |
| 22 | { |
| 23 | HANDLE file; |
| 24 | char *data; |
| 25 | DWORD file_size; |
| 26 | |
| 27 | file = CreateFile( fn, |
| 28 | GENERIC_READ, |
| 29 | FILE_SHARE_READ, |
| 30 | NULL, |
| 31 | OPEN_EXISTING, |
| 32 | 0, |
| 33 | NULL ); |
| 34 | |
| 35 | if (file == INVALID_HANDLE_VALUE) |
| 36 | return NULL; |
| 37 | |
| 38 | file_size = GetFileSize( file, NULL ); |
| 39 | data = NULL; |
| 40 | |
| 41 | if (file_size > 0) { |
| 42 | data = (char*) malloc( file_size + 1 ); |
| 43 | if (data == NULL) { |
| 44 | D("load_file: could not allocate %ld bytes\n", file_size ); |
| 45 | file_size = 0; |
| 46 | } else { |
| 47 | DWORD out_bytes; |
| 48 | |
| 49 | if ( !ReadFile( file, data, file_size, &out_bytes, NULL ) || |
| 50 | out_bytes != file_size ) |
| 51 | { |
| 52 | D("load_file: could not read %ld bytes from '%s'\n", file_size, fn); |
| 53 | free(data); |
| 54 | data = NULL; |
| 55 | file_size = 0; |
| 56 | } |
| 57 | } |
| 58 | } |
| 59 | CloseHandle( file ); |
| 60 | |
| 61 | *_sz = (unsigned) file_size; |
| 62 | return data; |
| 63 | } |
| 64 | |
| 65 | /**************************************************************************/ |
| 66 | /**************************************************************************/ |
| 67 | /***** *****/ |
| 68 | /***** common file descriptor handling *****/ |
| 69 | /***** *****/ |
| 70 | /**************************************************************************/ |
| 71 | /**************************************************************************/ |
| 72 | |
| 73 | typedef const struct FHClassRec_* FHClass; |
| 74 | |
| 75 | typedef struct FHRec_* FH; |
| 76 | |
| 77 | typedef struct EventHookRec_* EventHook; |
| 78 | |
| 79 | typedef struct FHClassRec_ |
| 80 | { |
| 81 | void (*_fh_init) ( FH f ); |
| 82 | int (*_fh_close)( FH f ); |
| 83 | int (*_fh_lseek)( FH f, int pos, int origin ); |
| 84 | int (*_fh_read) ( FH f, void* buf, int len ); |
| 85 | int (*_fh_write)( FH f, const void* buf, int len ); |
| 86 | void (*_fh_hook) ( FH f, int events, EventHook hook ); |
| 87 | |
| 88 | } FHClassRec; |
| 89 | |
| 90 | /* used to emulate unix-domain socket pairs */ |
| 91 | typedef struct SocketPairRec_* SocketPair; |
| 92 | |
| 93 | typedef struct FHRec_ |
| 94 | { |
| 95 | FHClass clazz; |
| 96 | int used; |
| 97 | int eof; |
| 98 | union { |
| 99 | HANDLE handle; |
| 100 | SOCKET socket; |
| 101 | SocketPair pair; |
| 102 | } u; |
| 103 | |
| 104 | HANDLE event; |
| 105 | int mask; |
| 106 | |
| 107 | char name[32]; |
| 108 | |
| 109 | } FHRec; |
| 110 | |
| 111 | #define fh_handle u.handle |
| 112 | #define fh_socket u.socket |
| 113 | #define fh_pair u.pair |
| 114 | |
| 115 | #define WIN32_FH_BASE 100 |
| 116 | |
| 117 | #define WIN32_MAX_FHS 128 |
| 118 | |
| 119 | static adb_mutex_t _win32_lock; |
| 120 | static FHRec _win32_fhs[ WIN32_MAX_FHS ]; |
| 121 | static int _win32_fh_count; |
| 122 | |
| 123 | static FH |
| 124 | _fh_from_int( int fd ) |
| 125 | { |
| 126 | FH f; |
| 127 | |
| 128 | fd -= WIN32_FH_BASE; |
| 129 | |
| 130 | if (fd < 0 || fd >= _win32_fh_count) { |
| 131 | D( "_fh_from_int: invalid fd %d\n", fd + WIN32_FH_BASE ); |
| 132 | errno = EBADF; |
| 133 | return NULL; |
| 134 | } |
| 135 | |
| 136 | f = &_win32_fhs[fd]; |
| 137 | |
| 138 | if (f->used == 0) { |
| 139 | D( "_fh_from_int: invalid fd %d\n", fd + WIN32_FH_BASE ); |
| 140 | errno = EBADF; |
| 141 | return NULL; |
| 142 | } |
| 143 | |
| 144 | return f; |
| 145 | } |
| 146 | |
| 147 | |
| 148 | static int |
| 149 | _fh_to_int( FH f ) |
| 150 | { |
| 151 | if (f && f->used && f >= _win32_fhs && f < _win32_fhs + WIN32_MAX_FHS) |
| 152 | return (int)(f - _win32_fhs) + WIN32_FH_BASE; |
| 153 | |
| 154 | return -1; |
| 155 | } |
| 156 | |
| 157 | static FH |
| 158 | _fh_alloc( FHClass clazz ) |
| 159 | { |
| 160 | int nn; |
| 161 | FH f = NULL; |
| 162 | |
| 163 | adb_mutex_lock( &_win32_lock ); |
| 164 | |
| 165 | if (_win32_fh_count < WIN32_MAX_FHS) { |
| 166 | f = &_win32_fhs[ _win32_fh_count++ ]; |
| 167 | goto Exit; |
| 168 | } |
| 169 | |
| 170 | for (nn = 0; nn < WIN32_MAX_FHS; nn++) { |
| 171 | if ( _win32_fhs[nn].clazz == NULL) { |
| 172 | f = &_win32_fhs[nn]; |
| 173 | goto Exit; |
| 174 | } |
| 175 | } |
| 176 | D( "_fh_alloc: no more free file descriptors\n" ); |
| 177 | Exit: |
| 178 | if (f) { |
| 179 | f->clazz = clazz; |
| 180 | f->used = 1; |
| 181 | f->eof = 0; |
| 182 | clazz->_fh_init(f); |
| 183 | } |
| 184 | adb_mutex_unlock( &_win32_lock ); |
| 185 | return f; |
| 186 | } |
| 187 | |
| 188 | |
| 189 | static int |
| 190 | _fh_close( FH f ) |
| 191 | { |
| 192 | if ( f->used ) { |
| 193 | f->clazz->_fh_close( f ); |
| 194 | f->used = 0; |
| 195 | f->eof = 0; |
| 196 | f->clazz = NULL; |
| 197 | } |
| 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | /* forward definitions */ |
| 202 | static const FHClassRec _fh_file_class; |
| 203 | static const FHClassRec _fh_socket_class; |
| 204 | |
| 205 | /**************************************************************************/ |
| 206 | /**************************************************************************/ |
| 207 | /***** *****/ |
| 208 | /***** file-based descriptor handling *****/ |
| 209 | /***** *****/ |
| 210 | /**************************************************************************/ |
| 211 | /**************************************************************************/ |
| 212 | |
| 213 | static void |
| 214 | _fh_file_init( FH f ) |
| 215 | { |
| 216 | f->fh_handle = INVALID_HANDLE_VALUE; |
| 217 | } |
| 218 | |
| 219 | static int |
| 220 | _fh_file_close( FH f ) |
| 221 | { |
| 222 | CloseHandle( f->fh_handle ); |
| 223 | f->fh_handle = INVALID_HANDLE_VALUE; |
| 224 | return 0; |
| 225 | } |
| 226 | |
| 227 | static int |
| 228 | _fh_file_read( FH f, void* buf, int len ) |
| 229 | { |
| 230 | DWORD read_bytes; |
| 231 | |
| 232 | if ( !ReadFile( f->fh_handle, buf, (DWORD)len, &read_bytes, NULL ) ) { |
| 233 | D( "adb_read: could not read %d bytes from %s\n", len, f->name ); |
| 234 | errno = EIO; |
| 235 | return -1; |
| 236 | } else if (read_bytes < (DWORD)len) { |
| 237 | f->eof = 1; |
| 238 | } |
| 239 | return (int)read_bytes; |
| 240 | } |
| 241 | |
| 242 | static int |
| 243 | _fh_file_write( FH f, const void* buf, int len ) |
| 244 | { |
| 245 | DWORD wrote_bytes; |
| 246 | |
| 247 | if ( !WriteFile( f->fh_handle, buf, (DWORD)len, &wrote_bytes, NULL ) ) { |
| 248 | D( "adb_file_write: could not write %d bytes from %s\n", len, f->name ); |
| 249 | errno = EIO; |
| 250 | return -1; |
| 251 | } else if (wrote_bytes < (DWORD)len) { |
| 252 | f->eof = 1; |
| 253 | } |
| 254 | return (int)wrote_bytes; |
| 255 | } |
| 256 | |
| 257 | static int |
| 258 | _fh_file_lseek( FH f, int pos, int origin ) |
| 259 | { |
| 260 | DWORD method; |
| 261 | DWORD result; |
| 262 | |
| 263 | switch (origin) |
| 264 | { |
| 265 | case SEEK_SET: method = FILE_BEGIN; break; |
| 266 | case SEEK_CUR: method = FILE_CURRENT; break; |
| 267 | case SEEK_END: method = FILE_END; break; |
| 268 | default: |
| 269 | errno = EINVAL; |
| 270 | return -1; |
| 271 | } |
| 272 | |
| 273 | result = SetFilePointer( f->fh_handle, pos, NULL, method ); |
| 274 | if (result == INVALID_SET_FILE_POINTER) { |
| 275 | errno = EIO; |
| 276 | return -1; |
| 277 | } else { |
| 278 | f->eof = 0; |
| 279 | } |
| 280 | return (int)result; |
| 281 | } |
| 282 | |
| 283 | static void _fh_file_hook( FH f, int event, EventHook eventhook ); /* forward */ |
| 284 | |
| 285 | static const FHClassRec _fh_file_class = |
| 286 | { |
| 287 | _fh_file_init, |
| 288 | _fh_file_close, |
| 289 | _fh_file_lseek, |
| 290 | _fh_file_read, |
| 291 | _fh_file_write, |
| 292 | _fh_file_hook |
| 293 | }; |
| 294 | |
| 295 | /**************************************************************************/ |
| 296 | /**************************************************************************/ |
| 297 | /***** *****/ |
| 298 | /***** file-based descriptor handling *****/ |
| 299 | /***** *****/ |
| 300 | /**************************************************************************/ |
| 301 | /**************************************************************************/ |
| 302 | |
| 303 | int adb_open(const char* path, int options) |
| 304 | { |
| 305 | FH f; |
| 306 | |
| 307 | DWORD desiredAccess = 0; |
| 308 | DWORD shareMode = FILE_SHARE_READ | FILE_SHARE_WRITE; |
| 309 | |
| 310 | switch (options) { |
| 311 | case O_RDONLY: |
| 312 | desiredAccess = GENERIC_READ; |
| 313 | break; |
| 314 | case O_WRONLY: |
| 315 | desiredAccess = GENERIC_WRITE; |
| 316 | break; |
| 317 | case O_RDWR: |
| 318 | desiredAccess = GENERIC_READ | GENERIC_WRITE; |
| 319 | break; |
| 320 | default: |
| 321 | D("adb_open: invalid options (0x%0x)\n", options); |
| 322 | errno = EINVAL; |
| 323 | return -1; |
| 324 | } |
| 325 | |
| 326 | f = _fh_alloc( &_fh_file_class ); |
| 327 | if ( !f ) { |
| 328 | errno = ENOMEM; |
| 329 | return -1; |
| 330 | } |
| 331 | |
| 332 | f->fh_handle = CreateFile( path, desiredAccess, shareMode, NULL, OPEN_EXISTING, |
| 333 | 0, NULL ); |
| 334 | |
| 335 | if ( f->fh_handle == INVALID_HANDLE_VALUE ) { |
| 336 | _fh_close(f); |
| 337 | D( "adb_open: could not open '%s':", path ); |
| 338 | switch (GetLastError()) { |
| 339 | case ERROR_FILE_NOT_FOUND: |
| 340 | D( "file not found\n" ); |
| 341 | errno = ENOENT; |
| 342 | return -1; |
| 343 | |
| 344 | case ERROR_PATH_NOT_FOUND: |
| 345 | D( "path not found\n" ); |
| 346 | errno = ENOTDIR; |
| 347 | return -1; |
| 348 | |
| 349 | default: |
| 350 | D( "unknown error\n" ); |
| 351 | errno = ENOENT; |
| 352 | return -1; |
| 353 | } |
| 354 | } |
| 355 | |
| 356 | snprintf( f->name, sizeof(f->name), "%d(%s)", _fh_to_int(f), path ); |
| 357 | D( "adb_open: '%s' => fd %d\n", path, _fh_to_int(f) ); |
| 358 | return _fh_to_int(f); |
| 359 | } |
| 360 | |
| 361 | /* ignore mode on Win32 */ |
| 362 | int adb_creat(const char* path, int mode) |
| 363 | { |
| 364 | FH f; |
| 365 | |
| 366 | f = _fh_alloc( &_fh_file_class ); |
| 367 | if ( !f ) { |
| 368 | errno = ENOMEM; |
| 369 | return -1; |
| 370 | } |
| 371 | |
| 372 | f->fh_handle = CreateFile( path, GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, |
| 373 | NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, |
| 374 | NULL ); |
| 375 | |
| 376 | if ( f->fh_handle == INVALID_HANDLE_VALUE ) { |
| 377 | _fh_close(f); |
| 378 | D( "adb_creat: could not open '%s':", path ); |
| 379 | switch (GetLastError()) { |
| 380 | case ERROR_FILE_NOT_FOUND: |
| 381 | D( "file not found\n" ); |
| 382 | errno = ENOENT; |
| 383 | return -1; |
| 384 | |
| 385 | case ERROR_PATH_NOT_FOUND: |
| 386 | D( "path not found\n" ); |
| 387 | errno = ENOTDIR; |
| 388 | return -1; |
| 389 | |
| 390 | default: |
| 391 | D( "unknown error\n" ); |
| 392 | errno = ENOENT; |
| 393 | return -1; |
| 394 | } |
| 395 | } |
| 396 | snprintf( f->name, sizeof(f->name), "%d(%s)", _fh_to_int(f), path ); |
| 397 | D( "adb_creat: '%s' => fd %d\n", path, _fh_to_int(f) ); |
| 398 | return _fh_to_int(f); |
| 399 | } |
| 400 | |
| 401 | |
| 402 | int adb_read(int fd, void* buf, int len) |
| 403 | { |
| 404 | FH f = _fh_from_int(fd); |
| 405 | |
| 406 | if (f == NULL) { |
| 407 | return -1; |
| 408 | } |
| 409 | |
| 410 | return f->clazz->_fh_read( f, buf, len ); |
| 411 | } |
| 412 | |
| 413 | |
| 414 | int adb_write(int fd, const void* buf, int len) |
| 415 | { |
| 416 | FH f = _fh_from_int(fd); |
| 417 | |
| 418 | if (f == NULL) { |
| 419 | return -1; |
| 420 | } |
| 421 | |
| 422 | return f->clazz->_fh_write(f, buf, len); |
| 423 | } |
| 424 | |
| 425 | |
| 426 | int adb_lseek(int fd, int pos, int where) |
| 427 | { |
| 428 | FH f = _fh_from_int(fd); |
| 429 | |
| 430 | if (!f) { |
| 431 | return -1; |
| 432 | } |
| 433 | |
| 434 | return f->clazz->_fh_lseek(f, pos, where); |
| 435 | } |
| 436 | |
| 437 | |
Mike Lockwood | 8cf0d59 | 2009-10-11 23:04:18 -0400 | [diff] [blame] | 438 | int adb_shutdown(int fd) |
| 439 | { |
| 440 | FH f = _fh_from_int(fd); |
| 441 | |
| 442 | if (!f) { |
| 443 | return -1; |
| 444 | } |
| 445 | |
| 446 | D( "adb_shutdown: %s\n", f->name); |
| 447 | shutdown( f->fh_socket, SD_BOTH ); |
| 448 | return 0; |
| 449 | } |
| 450 | |
| 451 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 452 | int adb_close(int fd) |
| 453 | { |
| 454 | FH f = _fh_from_int(fd); |
| 455 | |
| 456 | if (!f) { |
| 457 | return -1; |
| 458 | } |
| 459 | |
| 460 | D( "adb_close: %s\n", f->name); |
| 461 | _fh_close(f); |
| 462 | return 0; |
| 463 | } |
| 464 | |
| 465 | /**************************************************************************/ |
| 466 | /**************************************************************************/ |
| 467 | /***** *****/ |
| 468 | /***** socket-based file descriptors *****/ |
| 469 | /***** *****/ |
| 470 | /**************************************************************************/ |
| 471 | /**************************************************************************/ |
| 472 | |
| 473 | static void |
| 474 | _socket_set_errno( void ) |
| 475 | { |
| 476 | switch (WSAGetLastError()) { |
| 477 | case 0: errno = 0; break; |
| 478 | case WSAEWOULDBLOCK: errno = EAGAIN; break; |
| 479 | case WSAEINTR: errno = EINTR; break; |
| 480 | default: |
| 481 | D( "_socket_set_errno: unhandled value %d\n", WSAGetLastError() ); |
| 482 | errno = EINVAL; |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | static void |
| 487 | _fh_socket_init( FH f ) |
| 488 | { |
| 489 | f->fh_socket = INVALID_SOCKET; |
| 490 | f->event = WSACreateEvent(); |
| 491 | f->mask = 0; |
| 492 | } |
| 493 | |
| 494 | static int |
| 495 | _fh_socket_close( FH f ) |
| 496 | { |
| 497 | /* gently tell any peer that we're closing the socket */ |
| 498 | shutdown( f->fh_socket, SD_BOTH ); |
| 499 | closesocket( f->fh_socket ); |
| 500 | f->fh_socket = INVALID_SOCKET; |
| 501 | CloseHandle( f->event ); |
| 502 | f->mask = 0; |
| 503 | return 0; |
| 504 | } |
| 505 | |
| 506 | static int |
| 507 | _fh_socket_lseek( FH f, int pos, int origin ) |
| 508 | { |
| 509 | errno = EPIPE; |
| 510 | return -1; |
| 511 | } |
| 512 | |
| 513 | static int |
| 514 | _fh_socket_read( FH f, void* buf, int len ) |
| 515 | { |
| 516 | int result = recv( f->fh_socket, buf, len, 0 ); |
| 517 | if (result == SOCKET_ERROR) { |
| 518 | _socket_set_errno(); |
| 519 | result = -1; |
| 520 | } |
| 521 | return result; |
| 522 | } |
| 523 | |
| 524 | static int |
| 525 | _fh_socket_write( FH f, const void* buf, int len ) |
| 526 | { |
| 527 | int result = send( f->fh_socket, buf, len, 0 ); |
| 528 | if (result == SOCKET_ERROR) { |
| 529 | _socket_set_errno(); |
| 530 | result = -1; |
| 531 | } |
| 532 | return result; |
| 533 | } |
| 534 | |
| 535 | static void _fh_socket_hook( FH f, int event, EventHook hook ); /* forward */ |
| 536 | |
| 537 | static const FHClassRec _fh_socket_class = |
| 538 | { |
| 539 | _fh_socket_init, |
| 540 | _fh_socket_close, |
| 541 | _fh_socket_lseek, |
| 542 | _fh_socket_read, |
| 543 | _fh_socket_write, |
| 544 | _fh_socket_hook |
| 545 | }; |
| 546 | |
| 547 | /**************************************************************************/ |
| 548 | /**************************************************************************/ |
| 549 | /***** *****/ |
| 550 | /***** replacement for libs/cutils/socket_xxxx.c *****/ |
| 551 | /***** *****/ |
| 552 | /**************************************************************************/ |
| 553 | /**************************************************************************/ |
| 554 | |
| 555 | #include <winsock2.h> |
| 556 | |
| 557 | static int _winsock_init; |
| 558 | |
| 559 | static void |
| 560 | _cleanup_winsock( void ) |
| 561 | { |
| 562 | WSACleanup(); |
| 563 | } |
| 564 | |
| 565 | static void |
| 566 | _init_winsock( void ) |
| 567 | { |
| 568 | if (!_winsock_init) { |
| 569 | WSADATA wsaData; |
| 570 | int rc = WSAStartup( MAKEWORD(2,2), &wsaData); |
| 571 | if (rc != 0) { |
| 572 | fatal( "adb: could not initialize Winsock\n" ); |
| 573 | } |
| 574 | atexit( _cleanup_winsock ); |
| 575 | _winsock_init = 1; |
| 576 | } |
| 577 | } |
| 578 | |
| 579 | int socket_loopback_client(int port, int type) |
| 580 | { |
| 581 | FH f = _fh_alloc( &_fh_socket_class ); |
| 582 | struct sockaddr_in addr; |
| 583 | SOCKET s; |
| 584 | |
| 585 | if (!f) |
| 586 | return -1; |
| 587 | |
| 588 | if (!_winsock_init) |
| 589 | _init_winsock(); |
| 590 | |
| 591 | memset(&addr, 0, sizeof(addr)); |
| 592 | addr.sin_family = AF_INET; |
| 593 | addr.sin_port = htons(port); |
| 594 | addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
| 595 | |
| 596 | s = socket(AF_INET, type, 0); |
| 597 | if(s == INVALID_SOCKET) { |
| 598 | D("socket_loopback_client: could not create socket\n" ); |
| 599 | _fh_close(f); |
| 600 | return -1; |
| 601 | } |
| 602 | |
| 603 | f->fh_socket = s; |
| 604 | if(connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { |
| 605 | D("socket_loopback_client: could not connect to %s:%d\n", type != SOCK_STREAM ? "udp" : "tcp", port ); |
| 606 | _fh_close(f); |
| 607 | return -1; |
| 608 | } |
| 609 | snprintf( f->name, sizeof(f->name), "%d(lo-client:%s%d)", _fh_to_int(f), type != SOCK_STREAM ? "udp:" : "", port ); |
| 610 | D( "socket_loopback_client: port %d type %s => fd %d\n", port, type != SOCK_STREAM ? "udp" : "tcp", _fh_to_int(f) ); |
| 611 | return _fh_to_int(f); |
| 612 | } |
| 613 | |
| 614 | #define LISTEN_BACKLOG 4 |
| 615 | |
| 616 | int socket_loopback_server(int port, int type) |
| 617 | { |
| 618 | FH f = _fh_alloc( &_fh_socket_class ); |
| 619 | struct sockaddr_in addr; |
| 620 | SOCKET s; |
| 621 | int n; |
| 622 | |
| 623 | if (!f) { |
| 624 | return -1; |
| 625 | } |
| 626 | |
| 627 | if (!_winsock_init) |
| 628 | _init_winsock(); |
| 629 | |
| 630 | memset(&addr, 0, sizeof(addr)); |
| 631 | addr.sin_family = AF_INET; |
| 632 | addr.sin_port = htons(port); |
| 633 | addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); |
| 634 | |
| 635 | s = socket(AF_INET, type, 0); |
| 636 | if(s == INVALID_SOCKET) return -1; |
| 637 | |
| 638 | f->fh_socket = s; |
| 639 | |
| 640 | n = 1; |
| 641 | setsockopt(s, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, (const char*)&n, sizeof(n)); |
| 642 | |
| 643 | if(bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { |
| 644 | _fh_close(f); |
| 645 | return -1; |
| 646 | } |
| 647 | if (type == SOCK_STREAM) { |
| 648 | int ret; |
| 649 | |
| 650 | ret = listen(s, LISTEN_BACKLOG); |
| 651 | if (ret < 0) { |
| 652 | _fh_close(f); |
| 653 | return -1; |
| 654 | } |
| 655 | } |
| 656 | snprintf( f->name, sizeof(f->name), "%d(lo-server:%s%d)", _fh_to_int(f), type != SOCK_STREAM ? "udp:" : "", port ); |
| 657 | D( "socket_loopback_server: port %d type %s => fd %d\n", port, type != SOCK_STREAM ? "udp" : "tcp", _fh_to_int(f) ); |
| 658 | return _fh_to_int(f); |
| 659 | } |
| 660 | |
| 661 | |
| 662 | int socket_network_client(const char *host, int port, int type) |
| 663 | { |
| 664 | FH f = _fh_alloc( &_fh_socket_class ); |
| 665 | struct hostent *hp; |
| 666 | struct sockaddr_in addr; |
| 667 | SOCKET s; |
| 668 | |
| 669 | if (!f) |
| 670 | return -1; |
| 671 | |
| 672 | if (!_winsock_init) |
| 673 | _init_winsock(); |
| 674 | |
| 675 | hp = gethostbyname(host); |
| 676 | if(hp == 0) { |
| 677 | _fh_close(f); |
| 678 | return -1; |
| 679 | } |
| 680 | |
| 681 | memset(&addr, 0, sizeof(addr)); |
| 682 | addr.sin_family = hp->h_addrtype; |
| 683 | addr.sin_port = htons(port); |
| 684 | memcpy(&addr.sin_addr, hp->h_addr, hp->h_length); |
| 685 | |
| 686 | s = socket(hp->h_addrtype, type, 0); |
| 687 | if(s == INVALID_SOCKET) { |
| 688 | _fh_close(f); |
| 689 | return -1; |
| 690 | } |
| 691 | f->fh_socket = s; |
| 692 | |
| 693 | if(connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { |
| 694 | _fh_close(f); |
| 695 | return -1; |
| 696 | } |
| 697 | |
| 698 | snprintf( f->name, sizeof(f->name), "%d(net-client:%s%d)", _fh_to_int(f), type != SOCK_STREAM ? "udp:" : "", port ); |
| 699 | D( "socket_network_client: host '%s' port %d type %s => fd %d\n", host, port, type != SOCK_STREAM ? "udp" : "tcp", _fh_to_int(f) ); |
| 700 | return _fh_to_int(f); |
| 701 | } |
| 702 | |
| 703 | |
| 704 | int socket_inaddr_any_server(int port, int type) |
| 705 | { |
| 706 | FH f = _fh_alloc( &_fh_socket_class ); |
| 707 | struct sockaddr_in addr; |
| 708 | SOCKET s; |
| 709 | int n; |
| 710 | |
| 711 | if (!f) |
| 712 | return -1; |
| 713 | |
| 714 | if (!_winsock_init) |
| 715 | _init_winsock(); |
| 716 | |
| 717 | memset(&addr, 0, sizeof(addr)); |
| 718 | addr.sin_family = AF_INET; |
| 719 | addr.sin_port = htons(port); |
| 720 | addr.sin_addr.s_addr = htonl(INADDR_ANY); |
| 721 | |
| 722 | s = socket(AF_INET, type, 0); |
| 723 | if(s == INVALID_SOCKET) { |
| 724 | _fh_close(f); |
| 725 | return -1; |
| 726 | } |
| 727 | |
| 728 | f->fh_socket = s; |
| 729 | n = 1; |
| 730 | setsockopt(s, SOL_SOCKET, SO_EXCLUSIVEADDRUSE, (const char*)&n, sizeof(n)); |
| 731 | |
| 732 | if(bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { |
| 733 | _fh_close(f); |
| 734 | return -1; |
| 735 | } |
| 736 | |
| 737 | if (type == SOCK_STREAM) { |
| 738 | int ret; |
| 739 | |
| 740 | ret = listen(s, LISTEN_BACKLOG); |
| 741 | if (ret < 0) { |
| 742 | _fh_close(f); |
| 743 | return -1; |
| 744 | } |
| 745 | } |
| 746 | snprintf( f->name, sizeof(f->name), "%d(any-server:%s%d)", _fh_to_int(f), type != SOCK_STREAM ? "udp:" : "", port ); |
| 747 | D( "socket_inaddr_server: port %d type %s => fd %d\n", port, type != SOCK_STREAM ? "udp" : "tcp", _fh_to_int(f) ); |
| 748 | return _fh_to_int(f); |
| 749 | } |
| 750 | |
| 751 | #undef accept |
| 752 | int adb_socket_accept(int serverfd, struct sockaddr* addr, socklen_t *addrlen) |
| 753 | { |
| 754 | FH serverfh = _fh_from_int(serverfd); |
| 755 | FH fh; |
David 'Digit' Turner | f6330a2 | 2009-05-18 17:36:28 +0200 | [diff] [blame] | 756 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 757 | if ( !serverfh || serverfh->clazz != &_fh_socket_class ) { |
| 758 | D( "adb_socket_accept: invalid fd %d\n", serverfd ); |
| 759 | return -1; |
| 760 | } |
David 'Digit' Turner | f6330a2 | 2009-05-18 17:36:28 +0200 | [diff] [blame] | 761 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 762 | fh = _fh_alloc( &_fh_socket_class ); |
| 763 | if (!fh) { |
| 764 | D( "adb_socket_accept: not enough memory to allocate accepted socket descriptor\n" ); |
| 765 | return -1; |
| 766 | } |
| 767 | |
| 768 | fh->fh_socket = accept( serverfh->fh_socket, addr, addrlen ); |
| 769 | if (fh->fh_socket == INVALID_SOCKET) { |
| 770 | _fh_close( fh ); |
| 771 | D( "adb_socket_accept: accept on fd %d return error %ld\n", serverfd, GetLastError() ); |
| 772 | return -1; |
| 773 | } |
David 'Digit' Turner | f6330a2 | 2009-05-18 17:36:28 +0200 | [diff] [blame] | 774 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 775 | snprintf( fh->name, sizeof(fh->name), "%d(accept:%s)", _fh_to_int(fh), serverfh->name ); |
| 776 | D( "adb_socket_accept on fd %d returns fd %d\n", serverfd, _fh_to_int(fh) ); |
| 777 | return _fh_to_int(fh); |
| 778 | } |
| 779 | |
| 780 | |
| 781 | void disable_tcp_nagle(int fd) |
| 782 | { |
| 783 | FH fh = _fh_from_int(fd); |
| 784 | int on; |
David 'Digit' Turner | f6330a2 | 2009-05-18 17:36:28 +0200 | [diff] [blame] | 785 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 786 | if ( !fh || fh->clazz != &_fh_socket_class ) |
| 787 | return; |
| 788 | |
| 789 | setsockopt( fh->fh_socket, IPPROTO_TCP, TCP_NODELAY, (const char*)&on, sizeof(on) ); |
| 790 | } |
| 791 | |
| 792 | /**************************************************************************/ |
| 793 | /**************************************************************************/ |
| 794 | /***** *****/ |
| 795 | /***** emulated socketpairs *****/ |
| 796 | /***** *****/ |
| 797 | /**************************************************************************/ |
| 798 | /**************************************************************************/ |
| 799 | |
| 800 | /* we implement socketpairs directly in use space for the following reasons: |
| 801 | * - it avoids copying data from/to the Nt kernel |
| 802 | * - it allows us to implement fdevent hooks easily and cheaply, something |
| 803 | * that is not possible with standard Win32 pipes !! |
| 804 | * |
| 805 | * basically, we use two circular buffers, each one corresponding to a given |
| 806 | * direction. |
| 807 | * |
| 808 | * each buffer is implemented as two regions: |
| 809 | * |
| 810 | * region A which is (a_start,a_end) |
| 811 | * region B which is (0, b_end) with b_end <= a_start |
| 812 | * |
| 813 | * an empty buffer has: a_start = a_end = b_end = 0 |
| 814 | * |
| 815 | * a_start is the pointer where we start reading data |
| 816 | * a_end is the pointer where we start writing data, unless it is BUFFER_SIZE, |
| 817 | * then you start writing at b_end |
| 818 | * |
| 819 | * the buffer is full when b_end == a_start && a_end == BUFFER_SIZE |
| 820 | * |
| 821 | * there is room when b_end < a_start || a_end < BUFER_SIZE |
| 822 | * |
| 823 | * when reading, a_start is incremented, it a_start meets a_end, then |
| 824 | * we do: a_start = 0, a_end = b_end, b_end = 0, and keep going on.. |
| 825 | */ |
| 826 | |
| 827 | #define BIP_BUFFER_SIZE 4096 |
| 828 | |
| 829 | #if 0 |
| 830 | #include <stdio.h> |
| 831 | # define BIPD(x) D x |
| 832 | # define BIPDUMP bip_dump_hex |
| 833 | |
| 834 | static void bip_dump_hex( const unsigned char* ptr, size_t len ) |
| 835 | { |
| 836 | int nn, len2 = len; |
| 837 | |
| 838 | if (len2 > 8) len2 = 8; |
| 839 | |
| 840 | for (nn = 0; nn < len2; nn++) |
| 841 | printf("%02x", ptr[nn]); |
| 842 | printf(" "); |
| 843 | |
| 844 | for (nn = 0; nn < len2; nn++) { |
| 845 | int c = ptr[nn]; |
| 846 | if (c < 32 || c > 127) |
| 847 | c = '.'; |
| 848 | printf("%c", c); |
| 849 | } |
| 850 | printf("\n"); |
| 851 | fflush(stdout); |
| 852 | } |
| 853 | |
| 854 | #else |
| 855 | # define BIPD(x) do {} while (0) |
| 856 | # define BIPDUMP(p,l) BIPD(p) |
| 857 | #endif |
| 858 | |
| 859 | typedef struct BipBufferRec_ |
| 860 | { |
| 861 | int a_start; |
| 862 | int a_end; |
| 863 | int b_end; |
| 864 | int fdin; |
| 865 | int fdout; |
| 866 | int closed; |
| 867 | int can_write; /* boolean */ |
| 868 | HANDLE evt_write; /* event signaled when one can write to a buffer */ |
| 869 | int can_read; /* boolean */ |
| 870 | HANDLE evt_read; /* event signaled when one can read from a buffer */ |
| 871 | CRITICAL_SECTION lock; |
| 872 | unsigned char buff[ BIP_BUFFER_SIZE ]; |
| 873 | |
| 874 | } BipBufferRec, *BipBuffer; |
| 875 | |
| 876 | static void |
| 877 | bip_buffer_init( BipBuffer buffer ) |
| 878 | { |
| 879 | D( "bit_buffer_init %p\n", buffer ); |
| 880 | buffer->a_start = 0; |
| 881 | buffer->a_end = 0; |
| 882 | buffer->b_end = 0; |
| 883 | buffer->can_write = 1; |
| 884 | buffer->can_read = 0; |
| 885 | buffer->fdin = 0; |
| 886 | buffer->fdout = 0; |
| 887 | buffer->closed = 0; |
| 888 | buffer->evt_write = CreateEvent( NULL, TRUE, TRUE, NULL ); |
| 889 | buffer->evt_read = CreateEvent( NULL, TRUE, FALSE, NULL ); |
| 890 | InitializeCriticalSection( &buffer->lock ); |
| 891 | } |
| 892 | |
| 893 | static void |
| 894 | bip_buffer_close( BipBuffer bip ) |
| 895 | { |
| 896 | bip->closed = 1; |
| 897 | |
| 898 | if (!bip->can_read) { |
| 899 | SetEvent( bip->evt_read ); |
| 900 | } |
| 901 | if (!bip->can_write) { |
| 902 | SetEvent( bip->evt_write ); |
| 903 | } |
| 904 | } |
| 905 | |
| 906 | static void |
| 907 | bip_buffer_done( BipBuffer bip ) |
| 908 | { |
| 909 | BIPD(( "bip_buffer_done: %d->%d\n", bip->fdin, bip->fdout )); |
| 910 | CloseHandle( bip->evt_read ); |
| 911 | CloseHandle( bip->evt_write ); |
| 912 | DeleteCriticalSection( &bip->lock ); |
| 913 | } |
| 914 | |
| 915 | static int |
| 916 | bip_buffer_write( BipBuffer bip, const void* src, int len ) |
| 917 | { |
| 918 | int avail, count = 0; |
| 919 | |
| 920 | if (len <= 0) |
| 921 | return 0; |
| 922 | |
| 923 | BIPD(( "bip_buffer_write: enter %d->%d len %d\n", bip->fdin, bip->fdout, len )); |
| 924 | BIPDUMP( src, len ); |
| 925 | |
| 926 | EnterCriticalSection( &bip->lock ); |
| 927 | |
| 928 | while (!bip->can_write) { |
| 929 | int ret; |
| 930 | LeaveCriticalSection( &bip->lock ); |
| 931 | |
| 932 | if (bip->closed) { |
| 933 | errno = EPIPE; |
| 934 | return -1; |
| 935 | } |
| 936 | /* spinlocking here is probably unfair, but let's live with it */ |
| 937 | ret = WaitForSingleObject( bip->evt_write, INFINITE ); |
| 938 | if (ret != WAIT_OBJECT_0) { /* buffer probably closed */ |
| 939 | D( "bip_buffer_write: error %d->%d WaitForSingleObject returned %d, error %ld\n", bip->fdin, bip->fdout, ret, GetLastError() ); |
| 940 | return 0; |
| 941 | } |
| 942 | if (bip->closed) { |
| 943 | errno = EPIPE; |
| 944 | return -1; |
| 945 | } |
| 946 | EnterCriticalSection( &bip->lock ); |
| 947 | } |
| 948 | |
| 949 | BIPD(( "bip_buffer_write: exec %d->%d len %d\n", bip->fdin, bip->fdout, len )); |
| 950 | |
| 951 | avail = BIP_BUFFER_SIZE - bip->a_end; |
| 952 | if (avail > 0) |
| 953 | { |
| 954 | /* we can append to region A */ |
| 955 | if (avail > len) |
| 956 | avail = len; |
| 957 | |
| 958 | memcpy( bip->buff + bip->a_end, src, avail ); |
| 959 | src += avail; |
| 960 | count += avail; |
| 961 | len -= avail; |
| 962 | |
| 963 | bip->a_end += avail; |
| 964 | if (bip->a_end == BIP_BUFFER_SIZE && bip->a_start == 0) { |
| 965 | bip->can_write = 0; |
| 966 | ResetEvent( bip->evt_write ); |
| 967 | goto Exit; |
| 968 | } |
| 969 | } |
| 970 | |
| 971 | if (len == 0) |
| 972 | goto Exit; |
| 973 | |
| 974 | avail = bip->a_start - bip->b_end; |
| 975 | assert( avail > 0 ); /* since can_write is TRUE */ |
| 976 | |
| 977 | if (avail > len) |
| 978 | avail = len; |
| 979 | |
| 980 | memcpy( bip->buff + bip->b_end, src, avail ); |
| 981 | count += avail; |
| 982 | bip->b_end += avail; |
| 983 | |
| 984 | if (bip->b_end == bip->a_start) { |
| 985 | bip->can_write = 0; |
| 986 | ResetEvent( bip->evt_write ); |
| 987 | } |
| 988 | |
| 989 | Exit: |
| 990 | assert( count > 0 ); |
| 991 | |
| 992 | if ( !bip->can_read ) { |
| 993 | bip->can_read = 1; |
| 994 | SetEvent( bip->evt_read ); |
| 995 | } |
| 996 | |
| 997 | BIPD(( "bip_buffer_write: exit %d->%d count %d (as=%d ae=%d be=%d cw=%d cr=%d\n", |
| 998 | bip->fdin, bip->fdout, count, bip->a_start, bip->a_end, bip->b_end, bip->can_write, bip->can_read )); |
| 999 | LeaveCriticalSection( &bip->lock ); |
| 1000 | |
| 1001 | return count; |
| 1002 | } |
| 1003 | |
| 1004 | static int |
| 1005 | bip_buffer_read( BipBuffer bip, void* dst, int len ) |
| 1006 | { |
| 1007 | int avail, count = 0; |
| 1008 | |
| 1009 | if (len <= 0) |
| 1010 | return 0; |
| 1011 | |
| 1012 | BIPD(( "bip_buffer_read: enter %d->%d len %d\n", bip->fdin, bip->fdout, len )); |
| 1013 | |
| 1014 | EnterCriticalSection( &bip->lock ); |
| 1015 | while ( !bip->can_read ) |
| 1016 | { |
| 1017 | #if 0 |
| 1018 | LeaveCriticalSection( &bip->lock ); |
| 1019 | errno = EAGAIN; |
| 1020 | return -1; |
| 1021 | #else |
| 1022 | int ret; |
| 1023 | LeaveCriticalSection( &bip->lock ); |
| 1024 | |
| 1025 | if (bip->closed) { |
| 1026 | errno = EPIPE; |
| 1027 | return -1; |
| 1028 | } |
| 1029 | |
| 1030 | ret = WaitForSingleObject( bip->evt_read, INFINITE ); |
| 1031 | if (ret != WAIT_OBJECT_0) { /* probably closed buffer */ |
| 1032 | D( "bip_buffer_read: error %d->%d WaitForSingleObject returned %d, error %ld\n", bip->fdin, bip->fdout, ret, GetLastError()); |
| 1033 | return 0; |
| 1034 | } |
| 1035 | if (bip->closed) { |
| 1036 | errno = EPIPE; |
| 1037 | return -1; |
| 1038 | } |
| 1039 | EnterCriticalSection( &bip->lock ); |
| 1040 | #endif |
| 1041 | } |
| 1042 | |
| 1043 | BIPD(( "bip_buffer_read: exec %d->%d len %d\n", bip->fdin, bip->fdout, len )); |
| 1044 | |
| 1045 | avail = bip->a_end - bip->a_start; |
| 1046 | assert( avail > 0 ); /* since can_read is TRUE */ |
| 1047 | |
| 1048 | if (avail > len) |
| 1049 | avail = len; |
| 1050 | |
| 1051 | memcpy( dst, bip->buff + bip->a_start, avail ); |
| 1052 | dst += avail; |
| 1053 | count += avail; |
| 1054 | len -= avail; |
| 1055 | |
| 1056 | bip->a_start += avail; |
| 1057 | if (bip->a_start < bip->a_end) |
| 1058 | goto Exit; |
| 1059 | |
| 1060 | bip->a_start = 0; |
| 1061 | bip->a_end = bip->b_end; |
| 1062 | bip->b_end = 0; |
| 1063 | |
| 1064 | avail = bip->a_end; |
| 1065 | if (avail > 0) { |
| 1066 | if (avail > len) |
| 1067 | avail = len; |
| 1068 | memcpy( dst, bip->buff, avail ); |
| 1069 | count += avail; |
| 1070 | bip->a_start += avail; |
| 1071 | |
| 1072 | if ( bip->a_start < bip->a_end ) |
| 1073 | goto Exit; |
| 1074 | |
| 1075 | bip->a_start = bip->a_end = 0; |
| 1076 | } |
| 1077 | |
| 1078 | bip->can_read = 0; |
| 1079 | ResetEvent( bip->evt_read ); |
| 1080 | |
| 1081 | Exit: |
| 1082 | assert( count > 0 ); |
| 1083 | |
| 1084 | if (!bip->can_write ) { |
| 1085 | bip->can_write = 1; |
| 1086 | SetEvent( bip->evt_write ); |
| 1087 | } |
| 1088 | |
| 1089 | BIPDUMP( (const unsigned char*)dst - count, count ); |
| 1090 | BIPD(( "bip_buffer_read: exit %d->%d count %d (as=%d ae=%d be=%d cw=%d cr=%d\n", |
| 1091 | bip->fdin, bip->fdout, count, bip->a_start, bip->a_end, bip->b_end, bip->can_write, bip->can_read )); |
| 1092 | LeaveCriticalSection( &bip->lock ); |
| 1093 | |
| 1094 | return count; |
| 1095 | } |
| 1096 | |
| 1097 | typedef struct SocketPairRec_ |
| 1098 | { |
| 1099 | BipBufferRec a2b_bip; |
| 1100 | BipBufferRec b2a_bip; |
| 1101 | FH a_fd; |
| 1102 | int used; |
| 1103 | |
| 1104 | } SocketPairRec; |
| 1105 | |
| 1106 | void _fh_socketpair_init( FH f ) |
| 1107 | { |
| 1108 | f->fh_pair = NULL; |
| 1109 | } |
| 1110 | |
| 1111 | static int |
| 1112 | _fh_socketpair_close( FH f ) |
| 1113 | { |
| 1114 | if ( f->fh_pair ) { |
| 1115 | SocketPair pair = f->fh_pair; |
| 1116 | |
| 1117 | if ( f == pair->a_fd ) { |
| 1118 | pair->a_fd = NULL; |
| 1119 | } |
| 1120 | |
| 1121 | bip_buffer_close( &pair->b2a_bip ); |
| 1122 | bip_buffer_close( &pair->a2b_bip ); |
| 1123 | |
| 1124 | if ( --pair->used == 0 ) { |
| 1125 | bip_buffer_done( &pair->b2a_bip ); |
| 1126 | bip_buffer_done( &pair->a2b_bip ); |
| 1127 | free( pair ); |
| 1128 | } |
| 1129 | f->fh_pair = NULL; |
| 1130 | } |
| 1131 | return 0; |
| 1132 | } |
| 1133 | |
| 1134 | static int |
| 1135 | _fh_socketpair_lseek( FH f, int pos, int origin ) |
| 1136 | { |
| 1137 | errno = ESPIPE; |
| 1138 | return -1; |
| 1139 | } |
| 1140 | |
| 1141 | static int |
| 1142 | _fh_socketpair_read( FH f, void* buf, int len ) |
| 1143 | { |
| 1144 | SocketPair pair = f->fh_pair; |
| 1145 | BipBuffer bip; |
| 1146 | |
| 1147 | if (!pair) |
| 1148 | return -1; |
| 1149 | |
| 1150 | if ( f == pair->a_fd ) |
| 1151 | bip = &pair->b2a_bip; |
| 1152 | else |
| 1153 | bip = &pair->a2b_bip; |
| 1154 | |
| 1155 | return bip_buffer_read( bip, buf, len ); |
| 1156 | } |
| 1157 | |
| 1158 | static int |
| 1159 | _fh_socketpair_write( FH f, const void* buf, int len ) |
| 1160 | { |
| 1161 | SocketPair pair = f->fh_pair; |
| 1162 | BipBuffer bip; |
| 1163 | |
| 1164 | if (!pair) |
| 1165 | return -1; |
| 1166 | |
| 1167 | if ( f == pair->a_fd ) |
| 1168 | bip = &pair->a2b_bip; |
| 1169 | else |
| 1170 | bip = &pair->b2a_bip; |
| 1171 | |
| 1172 | return bip_buffer_write( bip, buf, len ); |
| 1173 | } |
| 1174 | |
| 1175 | |
| 1176 | static void _fh_socketpair_hook( FH f, int event, EventHook hook ); /* forward */ |
| 1177 | |
| 1178 | static const FHClassRec _fh_socketpair_class = |
| 1179 | { |
| 1180 | _fh_socketpair_init, |
| 1181 | _fh_socketpair_close, |
| 1182 | _fh_socketpair_lseek, |
| 1183 | _fh_socketpair_read, |
| 1184 | _fh_socketpair_write, |
| 1185 | _fh_socketpair_hook |
| 1186 | }; |
| 1187 | |
| 1188 | |
| 1189 | int adb_socketpair( int sv[2] ) |
| 1190 | { |
| 1191 | FH fa, fb; |
| 1192 | SocketPair pair; |
| 1193 | |
| 1194 | fa = _fh_alloc( &_fh_socketpair_class ); |
| 1195 | fb = _fh_alloc( &_fh_socketpair_class ); |
| 1196 | |
| 1197 | if (!fa || !fb) |
| 1198 | goto Fail; |
| 1199 | |
| 1200 | pair = malloc( sizeof(*pair) ); |
| 1201 | if (pair == NULL) { |
| 1202 | D("adb_socketpair: not enough memory to allocate pipes\n" ); |
| 1203 | goto Fail; |
| 1204 | } |
| 1205 | |
| 1206 | bip_buffer_init( &pair->a2b_bip ); |
| 1207 | bip_buffer_init( &pair->b2a_bip ); |
| 1208 | |
| 1209 | fa->fh_pair = pair; |
| 1210 | fb->fh_pair = pair; |
| 1211 | pair->used = 2; |
| 1212 | pair->a_fd = fa; |
| 1213 | |
| 1214 | sv[0] = _fh_to_int(fa); |
| 1215 | sv[1] = _fh_to_int(fb); |
| 1216 | |
| 1217 | pair->a2b_bip.fdin = sv[0]; |
| 1218 | pair->a2b_bip.fdout = sv[1]; |
| 1219 | pair->b2a_bip.fdin = sv[1]; |
| 1220 | pair->b2a_bip.fdout = sv[0]; |
| 1221 | |
| 1222 | snprintf( fa->name, sizeof(fa->name), "%d(pair:%d)", sv[0], sv[1] ); |
| 1223 | snprintf( fb->name, sizeof(fb->name), "%d(pair:%d)", sv[1], sv[0] ); |
| 1224 | D( "adb_socketpair: returns (%d, %d)\n", sv[0], sv[1] ); |
| 1225 | return 0; |
| 1226 | |
| 1227 | Fail: |
| 1228 | _fh_close(fb); |
| 1229 | _fh_close(fa); |
| 1230 | return -1; |
| 1231 | } |
| 1232 | |
| 1233 | /**************************************************************************/ |
| 1234 | /**************************************************************************/ |
| 1235 | /***** *****/ |
| 1236 | /***** fdevents emulation *****/ |
| 1237 | /***** *****/ |
| 1238 | /***** this is a very simple implementation, we rely on the fact *****/ |
| 1239 | /***** that ADB doesn't use FDE_ERROR. *****/ |
| 1240 | /***** *****/ |
| 1241 | /**************************************************************************/ |
| 1242 | /**************************************************************************/ |
| 1243 | |
| 1244 | #define FATAL(x...) fatal(__FUNCTION__, x) |
| 1245 | |
| 1246 | #if DEBUG |
| 1247 | static void dump_fde(fdevent *fde, const char *info) |
| 1248 | { |
| 1249 | fprintf(stderr,"FDE #%03d %c%c%c %s\n", fde->fd, |
| 1250 | fde->state & FDE_READ ? 'R' : ' ', |
| 1251 | fde->state & FDE_WRITE ? 'W' : ' ', |
| 1252 | fde->state & FDE_ERROR ? 'E' : ' ', |
| 1253 | info); |
| 1254 | } |
| 1255 | #else |
| 1256 | #define dump_fde(fde, info) do { } while(0) |
| 1257 | #endif |
| 1258 | |
| 1259 | #define FDE_EVENTMASK 0x00ff |
| 1260 | #define FDE_STATEMASK 0xff00 |
| 1261 | |
| 1262 | #define FDE_ACTIVE 0x0100 |
| 1263 | #define FDE_PENDING 0x0200 |
| 1264 | #define FDE_CREATED 0x0400 |
| 1265 | |
| 1266 | static void fdevent_plist_enqueue(fdevent *node); |
| 1267 | static void fdevent_plist_remove(fdevent *node); |
| 1268 | static fdevent *fdevent_plist_dequeue(void); |
| 1269 | |
| 1270 | static fdevent list_pending = { |
| 1271 | .next = &list_pending, |
| 1272 | .prev = &list_pending, |
| 1273 | }; |
| 1274 | |
| 1275 | static fdevent **fd_table = 0; |
| 1276 | static int fd_table_max = 0; |
| 1277 | |
| 1278 | typedef struct EventLooperRec_* EventLooper; |
| 1279 | |
| 1280 | typedef struct EventHookRec_ |
| 1281 | { |
| 1282 | EventHook next; |
| 1283 | FH fh; |
| 1284 | HANDLE h; |
| 1285 | int wanted; /* wanted event flags */ |
| 1286 | int ready; /* ready event flags */ |
| 1287 | void* aux; |
| 1288 | void (*prepare)( EventHook hook ); |
| 1289 | int (*start) ( EventHook hook ); |
| 1290 | void (*stop) ( EventHook hook ); |
| 1291 | int (*check) ( EventHook hook ); |
| 1292 | int (*peek) ( EventHook hook ); |
| 1293 | } EventHookRec; |
| 1294 | |
| 1295 | static EventHook _free_hooks; |
| 1296 | |
| 1297 | static EventHook |
| 1298 | event_hook_alloc( FH fh ) |
| 1299 | { |
| 1300 | EventHook hook = _free_hooks; |
| 1301 | if (hook != NULL) |
| 1302 | _free_hooks = hook->next; |
| 1303 | else { |
| 1304 | hook = malloc( sizeof(*hook) ); |
| 1305 | if (hook == NULL) |
| 1306 | fatal( "could not allocate event hook\n" ); |
| 1307 | } |
| 1308 | hook->next = NULL; |
| 1309 | hook->fh = fh; |
| 1310 | hook->wanted = 0; |
| 1311 | hook->ready = 0; |
| 1312 | hook->h = INVALID_HANDLE_VALUE; |
| 1313 | hook->aux = NULL; |
| 1314 | |
| 1315 | hook->prepare = NULL; |
| 1316 | hook->start = NULL; |
| 1317 | hook->stop = NULL; |
| 1318 | hook->check = NULL; |
| 1319 | hook->peek = NULL; |
| 1320 | |
| 1321 | return hook; |
| 1322 | } |
| 1323 | |
| 1324 | static void |
| 1325 | event_hook_free( EventHook hook ) |
| 1326 | { |
| 1327 | hook->fh = NULL; |
| 1328 | hook->wanted = 0; |
| 1329 | hook->ready = 0; |
| 1330 | hook->next = _free_hooks; |
| 1331 | _free_hooks = hook; |
| 1332 | } |
| 1333 | |
| 1334 | |
| 1335 | static void |
| 1336 | event_hook_signal( EventHook hook ) |
| 1337 | { |
| 1338 | FH f = hook->fh; |
| 1339 | int fd = _fh_to_int(f); |
| 1340 | fdevent* fde = fd_table[ fd - WIN32_FH_BASE ]; |
| 1341 | |
| 1342 | if (fde != NULL && fde->fd == fd) { |
| 1343 | if ((fde->state & FDE_PENDING) == 0) { |
| 1344 | fde->state |= FDE_PENDING; |
| 1345 | fdevent_plist_enqueue( fde ); |
| 1346 | } |
| 1347 | fde->events |= hook->wanted; |
| 1348 | } |
| 1349 | } |
| 1350 | |
| 1351 | |
| 1352 | #define MAX_LOOPER_HANDLES WIN32_MAX_FHS |
| 1353 | |
| 1354 | typedef struct EventLooperRec_ |
| 1355 | { |
| 1356 | EventHook hooks; |
| 1357 | HANDLE htab[ MAX_LOOPER_HANDLES ]; |
| 1358 | int htab_count; |
| 1359 | |
| 1360 | } EventLooperRec; |
| 1361 | |
| 1362 | static EventHook* |
| 1363 | event_looper_find_p( EventLooper looper, FH fh ) |
| 1364 | { |
| 1365 | EventHook *pnode = &looper->hooks; |
| 1366 | EventHook node = *pnode; |
| 1367 | for (;;) { |
| 1368 | if ( node == NULL || node->fh == fh ) |
| 1369 | break; |
| 1370 | pnode = &node->next; |
| 1371 | node = *pnode; |
| 1372 | } |
| 1373 | return pnode; |
| 1374 | } |
| 1375 | |
| 1376 | static void |
| 1377 | event_looper_hook( EventLooper looper, int fd, int events ) |
| 1378 | { |
| 1379 | FH f = _fh_from_int(fd); |
| 1380 | EventHook *pnode; |
| 1381 | EventHook node; |
| 1382 | |
| 1383 | if (f == NULL) /* invalid arg */ { |
| 1384 | D("event_looper_hook: invalid fd=%d\n", fd); |
| 1385 | return; |
| 1386 | } |
| 1387 | |
| 1388 | pnode = event_looper_find_p( looper, f ); |
| 1389 | node = *pnode; |
| 1390 | if ( node == NULL ) { |
| 1391 | node = event_hook_alloc( f ); |
| 1392 | node->next = *pnode; |
| 1393 | *pnode = node; |
| 1394 | } |
| 1395 | |
| 1396 | if ( (node->wanted & events) != events ) { |
| 1397 | /* this should update start/stop/check/peek */ |
| 1398 | D("event_looper_hook: call hook for %d (new=%x, old=%x)\n", |
| 1399 | fd, node->wanted, events); |
| 1400 | f->clazz->_fh_hook( f, events & ~node->wanted, node ); |
| 1401 | node->wanted |= events; |
| 1402 | } else { |
| 1403 | D("event_looper_hook: ignoring events %x for %d wanted=%x)\n", |
| 1404 | events, fd, node->wanted); |
| 1405 | } |
| 1406 | } |
| 1407 | |
| 1408 | static void |
| 1409 | event_looper_unhook( EventLooper looper, int fd, int events ) |
| 1410 | { |
| 1411 | FH fh = _fh_from_int(fd); |
| 1412 | EventHook *pnode = event_looper_find_p( looper, fh ); |
| 1413 | EventHook node = *pnode; |
| 1414 | |
| 1415 | if (node != NULL) { |
| 1416 | int events2 = events & node->wanted; |
| 1417 | if ( events2 == 0 ) { |
| 1418 | D( "event_looper_unhook: events %x not registered for fd %d\n", events, fd ); |
| 1419 | return; |
| 1420 | } |
| 1421 | node->wanted &= ~events2; |
| 1422 | if (!node->wanted) { |
| 1423 | *pnode = node->next; |
| 1424 | event_hook_free( node ); |
| 1425 | } |
| 1426 | } |
| 1427 | } |
| 1428 | |
| 1429 | static EventLooperRec win32_looper; |
| 1430 | |
| 1431 | static void fdevent_init(void) |
| 1432 | { |
| 1433 | win32_looper.htab_count = 0; |
| 1434 | win32_looper.hooks = NULL; |
| 1435 | } |
| 1436 | |
| 1437 | static void fdevent_connect(fdevent *fde) |
| 1438 | { |
| 1439 | EventLooper looper = &win32_looper; |
| 1440 | int events = fde->state & FDE_EVENTMASK; |
| 1441 | |
| 1442 | if (events != 0) |
| 1443 | event_looper_hook( looper, fde->fd, events ); |
| 1444 | } |
| 1445 | |
| 1446 | static void fdevent_disconnect(fdevent *fde) |
| 1447 | { |
| 1448 | EventLooper looper = &win32_looper; |
| 1449 | int events = fde->state & FDE_EVENTMASK; |
| 1450 | |
| 1451 | if (events != 0) |
| 1452 | event_looper_unhook( looper, fde->fd, events ); |
| 1453 | } |
| 1454 | |
| 1455 | static void fdevent_update(fdevent *fde, unsigned events) |
| 1456 | { |
| 1457 | EventLooper looper = &win32_looper; |
| 1458 | unsigned events0 = fde->state & FDE_EVENTMASK; |
| 1459 | |
| 1460 | if (events != events0) { |
| 1461 | int removes = events0 & ~events; |
| 1462 | int adds = events & ~events0; |
| 1463 | if (removes) { |
| 1464 | D("fdevent_update: remove %x from %d\n", removes, fde->fd); |
| 1465 | event_looper_unhook( looper, fde->fd, removes ); |
| 1466 | } |
| 1467 | if (adds) { |
| 1468 | D("fdevent_update: add %x to %d\n", adds, fde->fd); |
| 1469 | event_looper_hook ( looper, fde->fd, adds ); |
| 1470 | } |
| 1471 | } |
| 1472 | } |
| 1473 | |
| 1474 | static void fdevent_process() |
| 1475 | { |
| 1476 | EventLooper looper = &win32_looper; |
| 1477 | EventHook hook; |
| 1478 | int gotone = 0; |
| 1479 | |
| 1480 | /* if we have at least one ready hook, execute it/them */ |
| 1481 | for (hook = looper->hooks; hook; hook = hook->next) { |
| 1482 | hook->ready = 0; |
| 1483 | if (hook->prepare) { |
| 1484 | hook->prepare(hook); |
| 1485 | if (hook->ready != 0) { |
| 1486 | event_hook_signal( hook ); |
| 1487 | gotone = 1; |
| 1488 | } |
| 1489 | } |
| 1490 | } |
| 1491 | |
| 1492 | /* nothing's ready yet, so wait for something to happen */ |
| 1493 | if (!gotone) |
| 1494 | { |
| 1495 | looper->htab_count = 0; |
| 1496 | |
| 1497 | for (hook = looper->hooks; hook; hook = hook->next) |
| 1498 | { |
| 1499 | if (hook->start && !hook->start(hook)) { |
| 1500 | D( "fdevent_process: error when starting a hook\n" ); |
| 1501 | return; |
| 1502 | } |
| 1503 | if (hook->h != INVALID_HANDLE_VALUE) { |
| 1504 | int nn; |
| 1505 | |
| 1506 | for (nn = 0; nn < looper->htab_count; nn++) |
| 1507 | { |
| 1508 | if ( looper->htab[nn] == hook->h ) |
| 1509 | goto DontAdd; |
| 1510 | } |
| 1511 | looper->htab[ looper->htab_count++ ] = hook->h; |
| 1512 | DontAdd: |
| 1513 | ; |
| 1514 | } |
| 1515 | } |
| 1516 | |
| 1517 | if (looper->htab_count == 0) { |
| 1518 | D( "fdevent_process: nothing to wait for !!\n" ); |
| 1519 | return; |
| 1520 | } |
| 1521 | |
| 1522 | do |
| 1523 | { |
| 1524 | int wait_ret; |
| 1525 | |
| 1526 | D( "adb_win32: waiting for %d events\n", looper->htab_count ); |
| 1527 | if (looper->htab_count > MAXIMUM_WAIT_OBJECTS) { |
| 1528 | D("handle count %d exceeds MAXIMUM_WAIT_OBJECTS, aborting!\n", looper->htab_count); |
| 1529 | abort(); |
| 1530 | } |
| 1531 | wait_ret = WaitForMultipleObjects( looper->htab_count, looper->htab, FALSE, INFINITE ); |
| 1532 | if (wait_ret == (int)WAIT_FAILED) { |
| 1533 | D( "adb_win32: wait failed, error %ld\n", GetLastError() ); |
| 1534 | } else { |
| 1535 | D( "adb_win32: got one (index %d)\n", wait_ret ); |
| 1536 | |
| 1537 | /* according to Cygwin, some objects like consoles wake up on "inappropriate" events |
| 1538 | * like mouse movements. we need to filter these with the "check" function |
| 1539 | */ |
| 1540 | if ((unsigned)wait_ret < (unsigned)looper->htab_count) |
| 1541 | { |
| 1542 | for (hook = looper->hooks; hook; hook = hook->next) |
| 1543 | { |
| 1544 | if ( looper->htab[wait_ret] == hook->h && |
| 1545 | (!hook->check || hook->check(hook)) ) |
| 1546 | { |
| 1547 | D( "adb_win32: signaling %s for %x\n", hook->fh->name, hook->ready ); |
| 1548 | event_hook_signal( hook ); |
| 1549 | gotone = 1; |
| 1550 | break; |
| 1551 | } |
| 1552 | } |
| 1553 | } |
| 1554 | } |
| 1555 | } |
| 1556 | while (!gotone); |
| 1557 | |
| 1558 | for (hook = looper->hooks; hook; hook = hook->next) { |
| 1559 | if (hook->stop) |
| 1560 | hook->stop( hook ); |
| 1561 | } |
| 1562 | } |
| 1563 | |
| 1564 | for (hook = looper->hooks; hook; hook = hook->next) { |
| 1565 | if (hook->peek && hook->peek(hook)) |
| 1566 | event_hook_signal( hook ); |
| 1567 | } |
| 1568 | } |
| 1569 | |
| 1570 | |
| 1571 | static void fdevent_register(fdevent *fde) |
| 1572 | { |
| 1573 | int fd = fde->fd - WIN32_FH_BASE; |
| 1574 | |
| 1575 | if(fd < 0) { |
| 1576 | FATAL("bogus negative fd (%d)\n", fde->fd); |
| 1577 | } |
| 1578 | |
| 1579 | if(fd >= fd_table_max) { |
| 1580 | int oldmax = fd_table_max; |
| 1581 | if(fde->fd > 32000) { |
| 1582 | FATAL("bogus huuuuge fd (%d)\n", fde->fd); |
| 1583 | } |
| 1584 | if(fd_table_max == 0) { |
| 1585 | fdevent_init(); |
| 1586 | fd_table_max = 256; |
| 1587 | } |
| 1588 | while(fd_table_max <= fd) { |
| 1589 | fd_table_max *= 2; |
| 1590 | } |
| 1591 | fd_table = realloc(fd_table, sizeof(fdevent*) * fd_table_max); |
| 1592 | if(fd_table == 0) { |
| 1593 | FATAL("could not expand fd_table to %d entries\n", fd_table_max); |
| 1594 | } |
| 1595 | memset(fd_table + oldmax, 0, sizeof(int) * (fd_table_max - oldmax)); |
| 1596 | } |
| 1597 | |
| 1598 | fd_table[fd] = fde; |
| 1599 | } |
| 1600 | |
| 1601 | static void fdevent_unregister(fdevent *fde) |
| 1602 | { |
| 1603 | int fd = fde->fd - WIN32_FH_BASE; |
| 1604 | |
| 1605 | if((fd < 0) || (fd >= fd_table_max)) { |
| 1606 | FATAL("fd out of range (%d)\n", fde->fd); |
| 1607 | } |
| 1608 | |
| 1609 | if(fd_table[fd] != fde) { |
| 1610 | FATAL("fd_table out of sync"); |
| 1611 | } |
| 1612 | |
| 1613 | fd_table[fd] = 0; |
| 1614 | |
| 1615 | if(!(fde->state & FDE_DONT_CLOSE)) { |
| 1616 | dump_fde(fde, "close"); |
| 1617 | adb_close(fde->fd); |
| 1618 | } |
| 1619 | } |
| 1620 | |
| 1621 | static void fdevent_plist_enqueue(fdevent *node) |
| 1622 | { |
| 1623 | fdevent *list = &list_pending; |
| 1624 | |
| 1625 | node->next = list; |
| 1626 | node->prev = list->prev; |
| 1627 | node->prev->next = node; |
| 1628 | list->prev = node; |
| 1629 | } |
| 1630 | |
| 1631 | static void fdevent_plist_remove(fdevent *node) |
| 1632 | { |
| 1633 | node->prev->next = node->next; |
| 1634 | node->next->prev = node->prev; |
| 1635 | node->next = 0; |
| 1636 | node->prev = 0; |
| 1637 | } |
| 1638 | |
| 1639 | static fdevent *fdevent_plist_dequeue(void) |
| 1640 | { |
| 1641 | fdevent *list = &list_pending; |
| 1642 | fdevent *node = list->next; |
| 1643 | |
| 1644 | if(node == list) return 0; |
| 1645 | |
| 1646 | list->next = node->next; |
| 1647 | list->next->prev = list; |
| 1648 | node->next = 0; |
| 1649 | node->prev = 0; |
| 1650 | |
| 1651 | return node; |
| 1652 | } |
| 1653 | |
| 1654 | fdevent *fdevent_create(int fd, fd_func func, void *arg) |
| 1655 | { |
| 1656 | fdevent *fde = (fdevent*) malloc(sizeof(fdevent)); |
| 1657 | if(fde == 0) return 0; |
| 1658 | fdevent_install(fde, fd, func, arg); |
| 1659 | fde->state |= FDE_CREATED; |
| 1660 | return fde; |
| 1661 | } |
| 1662 | |
| 1663 | void fdevent_destroy(fdevent *fde) |
| 1664 | { |
| 1665 | if(fde == 0) return; |
| 1666 | if(!(fde->state & FDE_CREATED)) { |
| 1667 | FATAL("fde %p not created by fdevent_create()\n", fde); |
| 1668 | } |
| 1669 | fdevent_remove(fde); |
| 1670 | } |
| 1671 | |
| 1672 | void fdevent_install(fdevent *fde, int fd, fd_func func, void *arg) |
| 1673 | { |
| 1674 | memset(fde, 0, sizeof(fdevent)); |
| 1675 | fde->state = FDE_ACTIVE; |
| 1676 | fde->fd = fd; |
| 1677 | fde->func = func; |
| 1678 | fde->arg = arg; |
| 1679 | |
| 1680 | fdevent_register(fde); |
| 1681 | dump_fde(fde, "connect"); |
| 1682 | fdevent_connect(fde); |
| 1683 | fde->state |= FDE_ACTIVE; |
| 1684 | } |
| 1685 | |
| 1686 | void fdevent_remove(fdevent *fde) |
| 1687 | { |
| 1688 | if(fde->state & FDE_PENDING) { |
| 1689 | fdevent_plist_remove(fde); |
| 1690 | } |
| 1691 | |
| 1692 | if(fde->state & FDE_ACTIVE) { |
| 1693 | fdevent_disconnect(fde); |
| 1694 | dump_fde(fde, "disconnect"); |
| 1695 | fdevent_unregister(fde); |
| 1696 | } |
| 1697 | |
| 1698 | fde->state = 0; |
| 1699 | fde->events = 0; |
| 1700 | } |
| 1701 | |
| 1702 | |
| 1703 | void fdevent_set(fdevent *fde, unsigned events) |
| 1704 | { |
| 1705 | events &= FDE_EVENTMASK; |
| 1706 | |
| 1707 | if((fde->state & FDE_EVENTMASK) == (int)events) return; |
| 1708 | |
| 1709 | if(fde->state & FDE_ACTIVE) { |
| 1710 | fdevent_update(fde, events); |
| 1711 | dump_fde(fde, "update"); |
| 1712 | } |
| 1713 | |
| 1714 | fde->state = (fde->state & FDE_STATEMASK) | events; |
| 1715 | |
| 1716 | if(fde->state & FDE_PENDING) { |
| 1717 | /* if we're pending, make sure |
| 1718 | ** we don't signal an event that |
| 1719 | ** is no longer wanted. |
| 1720 | */ |
| 1721 | fde->events &= (~events); |
| 1722 | if(fde->events == 0) { |
| 1723 | fdevent_plist_remove(fde); |
| 1724 | fde->state &= (~FDE_PENDING); |
| 1725 | } |
| 1726 | } |
| 1727 | } |
| 1728 | |
| 1729 | void fdevent_add(fdevent *fde, unsigned events) |
| 1730 | { |
| 1731 | fdevent_set( |
| 1732 | fde, (fde->state & FDE_EVENTMASK) | (events & FDE_EVENTMASK)); |
| 1733 | } |
| 1734 | |
| 1735 | void fdevent_del(fdevent *fde, unsigned events) |
| 1736 | { |
| 1737 | fdevent_set( |
| 1738 | fde, (fde->state & FDE_EVENTMASK) & (~(events & FDE_EVENTMASK))); |
| 1739 | } |
| 1740 | |
| 1741 | void fdevent_loop() |
| 1742 | { |
| 1743 | fdevent *fde; |
| 1744 | |
| 1745 | for(;;) { |
| 1746 | #if DEBUG |
| 1747 | fprintf(stderr,"--- ---- waiting for events\n"); |
| 1748 | #endif |
| 1749 | fdevent_process(); |
| 1750 | |
| 1751 | while((fde = fdevent_plist_dequeue())) { |
| 1752 | unsigned events = fde->events; |
| 1753 | fde->events = 0; |
| 1754 | fde->state &= (~FDE_PENDING); |
| 1755 | dump_fde(fde, "callback"); |
| 1756 | fde->func(fde->fd, events, fde->arg); |
| 1757 | } |
| 1758 | } |
| 1759 | } |
| 1760 | |
| 1761 | /** FILE EVENT HOOKS |
| 1762 | **/ |
David 'Digit' Turner | f6330a2 | 2009-05-18 17:36:28 +0200 | [diff] [blame] | 1763 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1764 | static void _event_file_prepare( EventHook hook ) |
| 1765 | { |
| 1766 | if (hook->wanted & (FDE_READ|FDE_WRITE)) { |
| 1767 | /* we can always read/write */ |
| 1768 | hook->ready |= hook->wanted & (FDE_READ|FDE_WRITE); |
| 1769 | } |
| 1770 | } |
| 1771 | |
| 1772 | static int _event_file_peek( EventHook hook ) |
| 1773 | { |
| 1774 | return (hook->wanted & (FDE_READ|FDE_WRITE)); |
| 1775 | } |
| 1776 | |
| 1777 | static void _fh_file_hook( FH f, int events, EventHook hook ) |
| 1778 | { |
| 1779 | hook->h = f->fh_handle; |
| 1780 | hook->prepare = _event_file_prepare; |
| 1781 | hook->peek = _event_file_peek; |
| 1782 | } |
| 1783 | |
| 1784 | /** SOCKET EVENT HOOKS |
| 1785 | **/ |
| 1786 | |
| 1787 | static void _event_socket_verify( EventHook hook, WSANETWORKEVENTS* evts ) |
| 1788 | { |
| 1789 | if ( evts->lNetworkEvents & (FD_READ|FD_ACCEPT|FD_CLOSE) ) { |
| 1790 | if (hook->wanted & FDE_READ) |
| 1791 | hook->ready |= FDE_READ; |
| 1792 | if ((evts->iErrorCode[FD_READ] != 0) && hook->wanted & FDE_ERROR) |
| 1793 | hook->ready |= FDE_ERROR; |
| 1794 | } |
| 1795 | if ( evts->lNetworkEvents & (FD_WRITE|FD_CONNECT|FD_CLOSE) ) { |
| 1796 | if (hook->wanted & FDE_WRITE) |
| 1797 | hook->ready |= FDE_WRITE; |
| 1798 | if ((evts->iErrorCode[FD_WRITE] != 0) && hook->wanted & FDE_ERROR) |
| 1799 | hook->ready |= FDE_ERROR; |
| 1800 | } |
| 1801 | if ( evts->lNetworkEvents & FD_OOB ) { |
| 1802 | if (hook->wanted & FDE_ERROR) |
| 1803 | hook->ready |= FDE_ERROR; |
| 1804 | } |
| 1805 | } |
| 1806 | |
| 1807 | static void _event_socket_prepare( EventHook hook ) |
| 1808 | { |
| 1809 | WSANETWORKEVENTS evts; |
| 1810 | |
| 1811 | /* look if some of the events we want already happened ? */ |
| 1812 | if (!WSAEnumNetworkEvents( hook->fh->fh_socket, NULL, &evts )) |
| 1813 | _event_socket_verify( hook, &evts ); |
| 1814 | } |
| 1815 | |
| 1816 | static int _socket_wanted_to_flags( int wanted ) |
| 1817 | { |
| 1818 | int flags = 0; |
| 1819 | if (wanted & FDE_READ) |
| 1820 | flags |= FD_READ | FD_ACCEPT | FD_CLOSE; |
| 1821 | |
| 1822 | if (wanted & FDE_WRITE) |
| 1823 | flags |= FD_WRITE | FD_CONNECT | FD_CLOSE; |
| 1824 | |
| 1825 | if (wanted & FDE_ERROR) |
| 1826 | flags |= FD_OOB; |
| 1827 | |
| 1828 | return flags; |
| 1829 | } |
| 1830 | |
| 1831 | static int _event_socket_start( EventHook hook ) |
| 1832 | { |
| 1833 | /* create an event which we're going to wait for */ |
| 1834 | FH fh = hook->fh; |
| 1835 | long flags = _socket_wanted_to_flags( hook->wanted ); |
| 1836 | |
| 1837 | hook->h = fh->event; |
| 1838 | if (hook->h == INVALID_HANDLE_VALUE) { |
| 1839 | D( "_event_socket_start: no event for %s\n", fh->name ); |
| 1840 | return 0; |
| 1841 | } |
| 1842 | |
| 1843 | if ( flags != fh->mask ) { |
| 1844 | D( "_event_socket_start: hooking %s for %x (flags %ld)\n", hook->fh->name, hook->wanted, flags ); |
| 1845 | if ( WSAEventSelect( fh->fh_socket, hook->h, flags ) ) { |
| 1846 | D( "_event_socket_start: WSAEventSelect() for %s failed, error %d\n", hook->fh->name, WSAGetLastError() ); |
| 1847 | CloseHandle( hook->h ); |
| 1848 | hook->h = INVALID_HANDLE_VALUE; |
| 1849 | exit(1); |
| 1850 | return 0; |
| 1851 | } |
| 1852 | fh->mask = flags; |
| 1853 | } |
| 1854 | return 1; |
| 1855 | } |
| 1856 | |
| 1857 | static void _event_socket_stop( EventHook hook ) |
| 1858 | { |
| 1859 | hook->h = INVALID_HANDLE_VALUE; |
| 1860 | } |
| 1861 | |
| 1862 | static int _event_socket_check( EventHook hook ) |
| 1863 | { |
| 1864 | int result = 0; |
| 1865 | FH fh = hook->fh; |
| 1866 | WSANETWORKEVENTS evts; |
| 1867 | |
| 1868 | if (!WSAEnumNetworkEvents( fh->fh_socket, hook->h, &evts ) ) { |
| 1869 | _event_socket_verify( hook, &evts ); |
| 1870 | result = (hook->ready != 0); |
| 1871 | if (result) { |
| 1872 | ResetEvent( hook->h ); |
| 1873 | } |
| 1874 | } |
| 1875 | D( "_event_socket_check %s returns %d\n", fh->name, result ); |
| 1876 | return result; |
| 1877 | } |
| 1878 | |
| 1879 | static int _event_socket_peek( EventHook hook ) |
| 1880 | { |
| 1881 | WSANETWORKEVENTS evts; |
| 1882 | FH fh = hook->fh; |
| 1883 | |
| 1884 | /* look if some of the events we want already happened ? */ |
| 1885 | if (!WSAEnumNetworkEvents( fh->fh_socket, NULL, &evts )) { |
| 1886 | _event_socket_verify( hook, &evts ); |
| 1887 | if (hook->ready) |
| 1888 | ResetEvent( hook->h ); |
| 1889 | } |
| 1890 | |
| 1891 | return hook->ready != 0; |
| 1892 | } |
| 1893 | |
| 1894 | |
| 1895 | |
| 1896 | static void _fh_socket_hook( FH f, int events, EventHook hook ) |
| 1897 | { |
| 1898 | hook->prepare = _event_socket_prepare; |
| 1899 | hook->start = _event_socket_start; |
| 1900 | hook->stop = _event_socket_stop; |
| 1901 | hook->check = _event_socket_check; |
| 1902 | hook->peek = _event_socket_peek; |
| 1903 | |
| 1904 | _event_socket_start( hook ); |
| 1905 | } |
| 1906 | |
| 1907 | /** SOCKETPAIR EVENT HOOKS |
| 1908 | **/ |
| 1909 | |
| 1910 | static void _event_socketpair_prepare( EventHook hook ) |
| 1911 | { |
| 1912 | FH fh = hook->fh; |
| 1913 | SocketPair pair = fh->fh_pair; |
| 1914 | BipBuffer rbip = (pair->a_fd == fh) ? &pair->b2a_bip : &pair->a2b_bip; |
| 1915 | BipBuffer wbip = (pair->a_fd == fh) ? &pair->a2b_bip : &pair->b2a_bip; |
| 1916 | |
| 1917 | if (hook->wanted & FDE_READ && rbip->can_read) |
| 1918 | hook->ready |= FDE_READ; |
| 1919 | |
| 1920 | if (hook->wanted & FDE_WRITE && wbip->can_write) |
| 1921 | hook->ready |= FDE_WRITE; |
| 1922 | } |
| 1923 | |
| 1924 | static int _event_socketpair_start( EventHook hook ) |
| 1925 | { |
| 1926 | FH fh = hook->fh; |
| 1927 | SocketPair pair = fh->fh_pair; |
| 1928 | BipBuffer rbip = (pair->a_fd == fh) ? &pair->b2a_bip : &pair->a2b_bip; |
| 1929 | BipBuffer wbip = (pair->a_fd == fh) ? &pair->a2b_bip : &pair->b2a_bip; |
| 1930 | |
| 1931 | if (hook->wanted == FDE_READ) |
| 1932 | hook->h = rbip->evt_read; |
| 1933 | |
| 1934 | else if (hook->wanted == FDE_WRITE) |
| 1935 | hook->h = wbip->evt_write; |
| 1936 | |
| 1937 | else { |
| 1938 | D("_event_socketpair_start: can't handle FDE_READ+FDE_WRITE\n" ); |
| 1939 | return 0; |
| 1940 | } |
| 1941 | D( "_event_socketpair_start: hook %s for %x wanted=%x\n", |
| 1942 | hook->fh->name, _fh_to_int(fh), hook->wanted); |
| 1943 | return 1; |
| 1944 | } |
| 1945 | |
| 1946 | static int _event_socketpair_peek( EventHook hook ) |
| 1947 | { |
| 1948 | _event_socketpair_prepare( hook ); |
| 1949 | return hook->ready != 0; |
| 1950 | } |
| 1951 | |
| 1952 | static void _fh_socketpair_hook( FH fh, int events, EventHook hook ) |
| 1953 | { |
| 1954 | hook->prepare = _event_socketpair_prepare; |
| 1955 | hook->start = _event_socketpair_start; |
| 1956 | hook->peek = _event_socketpair_peek; |
| 1957 | } |
| 1958 | |
| 1959 | |
| 1960 | void |
| 1961 | adb_sysdeps_init( void ) |
| 1962 | { |
| 1963 | #define ADB_MUTEX(x) InitializeCriticalSection( & x ); |
| 1964 | #include "mutex_list.h" |
| 1965 | InitializeCriticalSection( &_win32_lock ); |
| 1966 | } |
| 1967 | |