1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17/* this file contains system-dependent definitions used by ADB 18 * they're related to threads, sockets and file descriptors 19 */ 20#ifndef _ADB_SYSDEPS_H 21#define _ADB_SYSDEPS_H 22 23#ifdef __CYGWIN__ 24# undef _WIN32 25#endif 26 27#ifdef _WIN32 28 29#include <windows.h> 30#include <winsock2.h> 31#include <ws2tcpip.h> 32#include <process.h> 33#include <fcntl.h> 34#include <io.h> 35#include <sys/stat.h> 36#include <errno.h> 37#include <ctype.h> 38 39#define OS_PATH_SEPARATOR '\\' 40#define OS_PATH_SEPARATOR_STR "\\" 41#define ENV_PATH_SEPARATOR_STR ";" 42 43typedef CRITICAL_SECTION adb_mutex_t; 44 45#define ADB_MUTEX_DEFINE(x) adb_mutex_t x 46 47/* declare all mutexes */ 48/* For win32, adb_sysdeps_init() will do the mutex runtime initialization. */ 49#define ADB_MUTEX(x) extern adb_mutex_t x; 50#include "mutex_list.h" 51 52extern void adb_sysdeps_init(void); 53 54static __inline__ void adb_mutex_lock( adb_mutex_t* lock ) 55{ 56 EnterCriticalSection( lock ); 57} 58 59static __inline__ void adb_mutex_unlock( adb_mutex_t* lock ) 60{ 61 LeaveCriticalSection( lock ); 62} 63 64typedef struct { unsigned tid; } adb_thread_t; 65 66typedef void* (*adb_thread_func_t)(void* arg); 67 68typedef void (*win_thread_func_t)(void* arg); 69 70static __inline__ int adb_thread_create( adb_thread_t *thread, adb_thread_func_t func, void* arg) 71{ 72 thread->tid = _beginthread( (win_thread_func_t)func, 0, arg ); 73 if (thread->tid == (unsigned)-1L) { 74 return -1; 75 } 76 return 0; 77} 78 79static __inline__ void close_on_exec(int fd) 80{ 81 /* nothing really */ 82} 83 84extern void disable_tcp_nagle(int fd); 85 86#define lstat stat /* no symlinks on Win32 */ 87 88#define S_ISLNK(m) 0 /* no symlinks on Win32 */ 89 90static __inline__ int adb_unlink(const char* path) 91{ 92 int rc = unlink(path); 93 94 if (rc == -1 && errno == EACCES) { 95 /* unlink returns EACCES when the file is read-only, so we first */ 96 /* try to make it writable, then unlink again... */ 97 rc = chmod(path, _S_IREAD|_S_IWRITE ); 98 if (rc == 0) 99 rc = unlink(path); 100 } 101 return rc; 102} 103#undef unlink 104#define unlink ___xxx_unlink 105 106static __inline__ int adb_mkdir(const char* path, int mode) 107{ 108 return _mkdir(path); 109} 110#undef mkdir 111#define mkdir ___xxx_mkdir 112 113extern int adb_open(const char* path, int options); 114extern int adb_creat(const char* path, int mode); 115extern int adb_read(int fd, void* buf, int len); 116extern int adb_write(int fd, const void* buf, int len); 117extern int adb_lseek(int fd, int pos, int where); 118extern int adb_shutdown(int fd); 119extern int adb_close(int fd); 120 121static __inline__ int unix_close(int fd) 122{ 123 return close(fd); 124} 125#undef close 126#define close ____xxx_close 127 128static __inline__ int unix_read(int fd, void* buf, size_t len) 129{ 130 return read(fd, buf, len); 131} 132#undef read 133#define read ___xxx_read 134 135static __inline__ int unix_write(int fd, const void* buf, size_t len) 136{ 137 return write(fd, buf, len); 138} 139#undef write 140#define write ___xxx_write 141 142static __inline__ int adb_open_mode(const char* path, int options, int mode) 143{ 144 return adb_open(path, options); 145} 146 147static __inline__ int unix_open(const char* path, int options,...) 148{ 149 if ((options & O_CREAT) == 0) 150 { 151 return open(path, options); 152 } 153 else 154 { 155 int mode; 156 va_list args; 157 va_start( args, options ); 158 mode = va_arg( args, int ); 159 va_end( args ); 160 return open(path, options, mode); 161 } 162} 163#define open ___xxx_unix_open 164 165 166/* normally provided by <cutils/misc.h> */ 167extern void* load_file(const char* pathname, unsigned* psize); 168 169/* normally provided by <cutils/sockets.h> */ 170extern int socket_loopback_client(int port, int type); 171extern int socket_network_client(const char *host, int port, int type); 172extern int socket_loopback_server(int port, int type); 173extern int socket_inaddr_any_server(int port, int type); 174 175/* normally provided by "fdevent.h" */ 176 177#define FDE_READ 0x0001 178#define FDE_WRITE 0x0002 179#define FDE_ERROR 0x0004 180#define FDE_DONT_CLOSE 0x0080 181 182typedef struct fdevent fdevent; 183 184typedef void (*fd_func)(int fd, unsigned events, void *userdata); 185 186fdevent *fdevent_create(int fd, fd_func func, void *arg); 187void fdevent_destroy(fdevent *fde); 188void fdevent_install(fdevent *fde, int fd, fd_func func, void *arg); 189void fdevent_remove(fdevent *item); 190void fdevent_set(fdevent *fde, unsigned events); 191void fdevent_add(fdevent *fde, unsigned events); 192void fdevent_del(fdevent *fde, unsigned events); 193void fdevent_loop(); 194 195struct fdevent { 196 fdevent *next; 197 fdevent *prev; 198 199 int fd; 200 int force_eof; 201 202 unsigned short state; 203 unsigned short events; 204 205 fd_func func; 206 void *arg; 207}; 208 209static __inline__ void adb_sleep_ms( int mseconds ) 210{ 211 Sleep( mseconds ); 212} 213 214extern int adb_socket_accept(int serverfd, struct sockaddr* addr, socklen_t *addrlen); 215 216#undef accept 217#define accept ___xxx_accept 218 219static __inline__ int adb_socket_setbufsize( int fd, int bufsize ) 220{ 221 int opt = bufsize; 222 return setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (const char*)&opt, sizeof(opt)); 223} 224 225extern int adb_socketpair( int sv[2] ); 226 227static __inline__ char* adb_dirstart( const char* path ) 228{ 229 char* p = strchr(path, '/'); 230 char* p2 = strchr(path, '\\'); 231 232 if ( !p ) 233 p = p2; 234 else if ( p2 && p2 > p ) 235 p = p2; 236 237 return p; 238} 239 240static __inline__ char* adb_dirstop( const char* path ) 241{ 242 char* p = strrchr(path, '/'); 243 char* p2 = strrchr(path, '\\'); 244 245 if ( !p ) 246 p = p2; 247 else if ( p2 && p2 > p ) 248 p = p2; 249 250 return p; 251} 252 253static __inline__ int adb_is_absolute_host_path( const char* path ) 254{ 255 return isalpha(path[0]) && path[1] == ':' && path[2] == '\\'; 256} 257 258extern char* adb_strtok_r(char *str, const char *delim, char **saveptr); 259 260#else /* !_WIN32 a.k.a. Unix */ 261 262#include "fdevent.h" 263#include <cutils/sockets.h> 264#include <cutils/misc.h> 265#include <signal.h> 266#include <sys/wait.h> 267#include <sys/stat.h> 268#include <fcntl.h> 269 270#include <pthread.h> 271#include <unistd.h> 272#include <fcntl.h> 273#include <stdarg.h> 274#include <netinet/in.h> 275#include <netinet/tcp.h> 276#include <string.h> 277#include <unistd.h> 278 279/* 280 * TEMP_FAILURE_RETRY is defined by some, but not all, versions of 281 * <unistd.h>. (Alas, it is not as standard as we'd hoped!) So, if it's 282 * not already defined, then define it here. 283 */ 284#ifndef TEMP_FAILURE_RETRY 285/* Used to retry syscalls that can return EINTR. */ 286#define TEMP_FAILURE_RETRY(exp) ({ \ 287 typeof (exp) _rc; \ 288 do { \ 289 _rc = (exp); \ 290 } while (_rc == -1 && errno == EINTR); \ 291 _rc; }) 292#endif 293 294#define OS_PATH_SEPARATOR '/' 295#define OS_PATH_SEPARATOR_STR "/" 296#define ENV_PATH_SEPARATOR_STR ":" 297 298typedef pthread_mutex_t adb_mutex_t; 299 300#define ADB_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER 301#define adb_mutex_init pthread_mutex_init 302#define adb_mutex_lock pthread_mutex_lock 303#define adb_mutex_unlock pthread_mutex_unlock 304#define adb_mutex_destroy pthread_mutex_destroy 305 306#define ADB_MUTEX_DEFINE(m) adb_mutex_t m = PTHREAD_MUTEX_INITIALIZER 307 308#define adb_cond_t pthread_cond_t 309#define adb_cond_init pthread_cond_init 310#define adb_cond_wait pthread_cond_wait 311#define adb_cond_broadcast pthread_cond_broadcast 312#define adb_cond_signal pthread_cond_signal 313#define adb_cond_destroy pthread_cond_destroy 314 315/* declare all mutexes */ 316#define ADB_MUTEX(x) extern adb_mutex_t x; 317#include "mutex_list.h" 318 319static __inline__ void close_on_exec(int fd) 320{ 321 fcntl( fd, F_SETFD, FD_CLOEXEC ); 322} 323 324static __inline__ int unix_open(const char* path, int options,...) 325{ 326 if ((options & O_CREAT) == 0) 327 { 328 return TEMP_FAILURE_RETRY( open(path, options) ); 329 } 330 else 331 { 332 int mode; 333 va_list args; 334 va_start( args, options ); 335 mode = va_arg( args, int ); 336 va_end( args ); 337 return TEMP_FAILURE_RETRY( open( path, options, mode ) ); 338 } 339} 340 341static __inline__ int adb_open_mode( const char* pathname, int options, int mode ) 342{ 343 return TEMP_FAILURE_RETRY( open( pathname, options, mode ) ); 344} 345 346 347static __inline__ int adb_open( const char* pathname, int options ) 348{ 349 int fd = TEMP_FAILURE_RETRY( open( pathname, options ) ); 350 if (fd < 0) 351 return -1; 352 close_on_exec( fd ); 353 return fd; 354} 355#undef open 356#define open ___xxx_open 357 358static __inline__ int adb_shutdown(int fd) 359{ 360 return shutdown(fd, SHUT_RDWR); 361} 362#undef shutdown 363#define shutdown ____xxx_shutdown 364 365static __inline__ int adb_close(int fd) 366{ 367 return close(fd); 368} 369#undef close 370#define close ____xxx_close 371 372 373static __inline__ int adb_read(int fd, void* buf, size_t len) 374{ 375 return TEMP_FAILURE_RETRY( read( fd, buf, len ) ); 376} 377 378#undef read 379#define read ___xxx_read 380 381static __inline__ int adb_write(int fd, const void* buf, size_t len) 382{ 383 return TEMP_FAILURE_RETRY( write( fd, buf, len ) ); 384} 385#undef write 386#define write ___xxx_write 387 388static __inline__ int adb_lseek(int fd, int pos, int where) 389{ 390 return lseek(fd, pos, where); 391} 392#undef lseek 393#define lseek ___xxx_lseek 394 395static __inline__ int adb_unlink(const char* path) 396{ 397 return unlink(path); 398} 399#undef unlink 400#define unlink ___xxx_unlink 401 402static __inline__ int adb_creat(const char* path, int mode) 403{ 404 int fd = TEMP_FAILURE_RETRY( creat( path, mode ) ); 405 406 if ( fd < 0 ) 407 return -1; 408 409 close_on_exec(fd); 410 return fd; 411} 412#undef creat 413#define creat ___xxx_creat 414 415static __inline__ int adb_socket_accept(int serverfd, struct sockaddr* addr, socklen_t *addrlen) 416{ 417 int fd; 418 419 fd = TEMP_FAILURE_RETRY( accept( serverfd, addr, addrlen ) ); 420 if (fd >= 0) 421 close_on_exec(fd); 422 423 return fd; 424} 425 426#undef accept 427#define accept ___xxx_accept 428 429#define unix_read adb_read 430#define unix_write adb_write 431#define unix_close adb_close 432 433typedef pthread_t adb_thread_t; 434 435typedef void* (*adb_thread_func_t)( void* arg ); 436 437static __inline__ int adb_thread_create( adb_thread_t *pthread, adb_thread_func_t start, void* arg ) 438{ 439 pthread_attr_t attr; 440 441 pthread_attr_init (&attr); 442 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); 443 444 return pthread_create( pthread, &attr, start, arg ); 445} 446 447static __inline__ int adb_socket_setbufsize( int fd, int bufsize ) 448{ 449 int opt = bufsize; 450 return setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &opt, sizeof(opt)); 451} 452 453static __inline__ void disable_tcp_nagle(int fd) 454{ 455 int on = 1; 456 setsockopt( fd, IPPROTO_TCP, TCP_NODELAY, (void*)&on, sizeof(on) ); 457} 458 459 460static __inline__ int unix_socketpair( int d, int type, int protocol, int sv[2] ) 461{ 462 return socketpair( d, type, protocol, sv ); 463} 464 465static __inline__ int adb_socketpair( int sv[2] ) 466{ 467 int rc; 468 469 rc = unix_socketpair( AF_UNIX, SOCK_STREAM, 0, sv ); 470 if (rc < 0) 471 return -1; 472 473 close_on_exec( sv[0] ); 474 close_on_exec( sv[1] ); 475 return 0; 476} 477 478#undef socketpair 479#define socketpair ___xxx_socketpair 480 481static __inline__ void adb_sleep_ms( int mseconds ) 482{ 483 usleep( mseconds*1000 ); 484} 485 486static __inline__ int adb_mkdir(const char* path, int mode) 487{ 488 return mkdir(path, mode); 489} 490#undef mkdir 491#define mkdir ___xxx_mkdir 492 493static __inline__ void adb_sysdeps_init(void) 494{ 495} 496 497static __inline__ char* adb_dirstart(const char* path) 498{ 499 return strchr(path, '/'); 500} 501 502static __inline__ char* adb_dirstop(const char* path) 503{ 504 return strrchr(path, '/'); 505} 506 507static __inline__ int adb_is_absolute_host_path( const char* path ) 508{ 509 return path[0] == '/'; 510} 511 512static __inline__ char* adb_strtok_r(char *str, const char *delim, char **saveptr) 513{ 514 return strtok_r(str, delim, saveptr); 515} 516#undef strtok_r 517#define strtok_r ___xxx_strtok_r 518 519#endif /* !_WIN32 */ 520 521#endif /* _ADB_SYSDEPS_H */ 522