sysdeps.h revision 4f6e8d7a00cbeda1e70cc15be9c4af1018bdad53 
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
42typedef CRITICAL_SECTION          adb_mutex_t;
43
44#define  ADB_MUTEX_DEFINE(x)     adb_mutex_t   x
45
46/* declare all mutexes */
47#define  ADB_MUTEX(x)   extern adb_mutex_t  x;
48#include "mutex_list.h"
49
50extern void  adb_sysdeps_init(void);
51
52static __inline__ void adb_mutex_lock( adb_mutex_t*  lock )
53{
54    EnterCriticalSection( lock );
55}
56
57static __inline__ void  adb_mutex_unlock( adb_mutex_t*  lock )
58{
59    LeaveCriticalSection( lock );
60}
61
62typedef struct { unsigned  tid; }  adb_thread_t;
63
64typedef  void*  (*adb_thread_func_t)(void*  arg);
65
66typedef  void (*win_thread_func_t)(void*  arg);
67
68static __inline__ int  adb_thread_create( adb_thread_t  *thread, adb_thread_func_t  func, void*  arg)
69{
70	thread->tid = _beginthread( (win_thread_func_t)func, 0, arg );
71	if (thread->tid == (unsigned)-1L) {
72		return -1;
73	}
74	return 0;
75}
76
77static __inline__ void  close_on_exec(int  fd)
78{
79	/* nothing really */
80}
81
82extern void  disable_tcp_nagle(int  fd);
83
84#define  lstat    stat   /* no symlinks on Win32 */
85
86#define  S_ISLNK(m)   0   /* no symlinks on Win32 */
87
88static __inline__  int    adb_unlink(const char*  path)
89{
90    int  rc = unlink(path);
91
92    if (rc == -1 && errno == EACCES) {
93        /* unlink returns EACCES when the file is read-only, so we first */
94        /* try to make it writable, then unlink again...                  */
95        rc = chmod(path, _S_IREAD|_S_IWRITE );
96        if (rc == 0)
97            rc = unlink(path);
98    }
99    return rc;
100}
101#undef  unlink
102#define unlink  ___xxx_unlink
103
104static __inline__ int  adb_mkdir(const char*  path, int mode)
105{
106	return _mkdir(path);
107}
108#undef   mkdir
109#define  mkdir  ___xxx_mkdir
110
111extern int  adb_open(const char*  path, int  options);
112extern int  adb_creat(const char*  path, int  mode);
113extern int  adb_read(int  fd, void* buf, int len);
114extern int  adb_write(int  fd, const void*  buf, int  len);
115extern int  adb_lseek(int  fd, int  pos, int  where);
116extern int  adb_close(int  fd);
117
118static __inline__ int  unix_close(int fd)
119{
120    return close(fd);
121}
122#undef   close
123#define  close   ____xxx_close
124
125static __inline__  int  unix_read(int  fd, void*  buf, size_t  len)
126{
127    return read(fd, buf, len);
128}
129#undef   read
130#define  read  ___xxx_read
131
132static __inline__  int  unix_write(int  fd, const void*  buf, size_t  len)
133{
134    return write(fd, buf, len);
135}
136#undef   write
137#define  write  ___xxx_write
138
139static __inline__ int  adb_open_mode(const char* path, int options, int mode)
140{
141	return adb_open(path, options);
142}
143
144static __inline__ int  unix_open(const char*  path, int options,...)
145{
146    if ((options & O_CREAT) == 0)
147    {
148        return  open(path, options);
149    }
150    else
151    {
152        int      mode;
153        va_list  args;
154        va_start( args, options );
155        mode = va_arg( args, int );
156        va_end( args );
157        return open(path, options, mode);
158    }
159}
160#define  open    ___xxx_unix_open
161
162
163/* normally provided by <cutils/misc.h> */
164extern void*  load_file(const char*  pathname, unsigned*  psize);
165
166/* normally provided by <cutils/sockets.h> */
167extern int socket_loopback_client(int port, int type);
168extern int socket_network_client(const char *host, int port, int type);
169extern int socket_loopback_server(int port, int type);
170extern int socket_inaddr_any_server(int port, int type);
171
172/* normally provided by <cutils/fdevent.h> */
173
174#define FDE_READ              0x0001
175#define FDE_WRITE             0x0002
176#define FDE_ERROR             0x0004
177#define FDE_DONT_CLOSE        0x0080
178
179typedef struct fdevent fdevent;
180
181typedef void (*fd_func)(int fd, unsigned events, void *userdata);
182
183fdevent *fdevent_create(int fd, fd_func func, void *arg);
184void     fdevent_destroy(fdevent *fde);
185void     fdevent_install(fdevent *fde, int fd, fd_func func, void *arg);
186void     fdevent_remove(fdevent *item);
187void     fdevent_set(fdevent *fde, unsigned events);
188void     fdevent_add(fdevent *fde, unsigned events);
189void     fdevent_del(fdevent *fde, unsigned events);
190void     fdevent_loop();
191
192struct fdevent {
193    fdevent *next;
194    fdevent *prev;
195
196    int fd;
197    unsigned short state;
198    unsigned short events;
199
200    fd_func func;
201    void *arg;
202};
203
204static __inline__ void  adb_sleep_ms( int  mseconds )
205{
206	Sleep( mseconds );
207}
208
209extern int  adb_socket_accept(int  serverfd, struct sockaddr*  addr, socklen_t  *addrlen);
210
211#undef   accept
212#define  accept  ___xxx_accept
213
214static __inline__  int  adb_socket_setbufsize( int   fd, int  bufsize )
215{
216    int opt = bufsize;
217    return setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (const char*)&opt, sizeof(opt));
218}
219
220extern int  adb_socketpair( int  sv[2] );
221
222static __inline__  char*  adb_dirstart( const char*  path )
223{
224    char*  p  = strchr(path, '/');
225    char*  p2 = strchr(path, '\\');
226
227    if ( !p )
228        p = p2;
229    else if ( p2 && p2 > p )
230        p = p2;
231
232    return p;
233}
234
235static __inline__  char*  adb_dirstop( const char*  path )
236{
237    char*  p  = strrchr(path, '/');
238    char*  p2 = strrchr(path, '\\');
239
240    if ( !p )
241        p = p2;
242    else if ( p2 && p2 > p )
243        p = p2;
244
245    return p;
246}
247
248static __inline__  int  adb_is_absolute_host_path( const char*  path )
249{
250    return isalpha(path[0]) && path[1] == ':' && path[2] == '\\';
251}
252
253#else /* !_WIN32 a.k.a. Unix */
254
255#include <cutils/fdevent.h>
256#include <cutils/sockets.h>
257#include <cutils/properties.h>
258#include <cutils/misc.h>
259#include <signal.h>
260#include <sys/wait.h>
261#include <sys/stat.h>
262#include <fcntl.h>
263
264#include <pthread.h>
265#include <unistd.h>
266#include <fcntl.h>
267#include <stdarg.h>
268#include <netinet/in.h>
269#include <netinet/tcp.h>
270#include <string.h>
271
272#define OS_PATH_SEPARATOR '/'
273#define OS_PATH_SEPARATOR_STR "/"
274
275typedef  pthread_mutex_t          adb_mutex_t;
276#define  ADB_MUTEX_INITIALIZER    PTHREAD_MUTEX_INITIALIZER
277#define  adb_mutex_init           pthread_mutex_init
278#define  adb_mutex_lock           pthread_mutex_lock
279#define  adb_mutex_unlock         pthread_mutex_unlock
280#define  adb_mutex_destroy        pthread_mutex_destroy
281
282#define  ADB_MUTEX_DEFINE(m)      static adb_mutex_t   m = PTHREAD_MUTEX_INITIALIZER
283
284#define  adb_cond_t               pthread_cond_t
285#define  adb_cond_init            pthread_cond_init
286#define  adb_cond_wait            pthread_cond_wait
287#define  adb_cond_broadcast       pthread_cond_broadcast
288#define  adb_cond_signal          pthread_cond_signal
289#define  adb_cond_destroy         pthread_cond_destroy
290
291static __inline__ void  close_on_exec(int  fd)
292{
293	fcntl( fd, F_SETFD, FD_CLOEXEC );
294}
295
296static __inline__ int  unix_open(const char*  path, int options,...)
297{
298    if ((options & O_CREAT) == 0)
299    {
300        return  open(path, options);
301    }
302    else
303    {
304        int      mode;
305        va_list  args;
306        va_start( args, options );
307        mode = va_arg( args, int );
308        va_end( args );
309        return open(path, options, mode);
310    }
311}
312
313static __inline__ int  adb_open_mode( const char*  pathname, int  options, int  mode )
314{
315	return open( pathname, options, mode );
316}
317
318
319static __inline__ int  adb_open( const char*  pathname, int  options )
320{
321    int  fd = open( pathname, options );
322    if (fd < 0)
323        return -1;
324    close_on_exec( fd );
325    return fd;
326}
327#undef   open
328#define  open    ___xxx_open
329
330static __inline__ int  adb_close(int fd)
331{
332    return close(fd);
333}
334#undef   close
335#define  close   ____xxx_close
336
337
338static __inline__  int  adb_read(int  fd, void*  buf, size_t  len)
339{
340    return read(fd, buf, len);
341}
342
343#undef   read
344#define  read  ___xxx_read
345
346static __inline__  int  adb_write(int  fd, const void*  buf, size_t  len)
347{
348    return write(fd, buf, len);
349}
350#undef   write
351#define  write  ___xxx_write
352
353static __inline__ int   adb_lseek(int  fd, int  pos, int  where)
354{
355    return lseek(fd, pos, where);
356}
357#undef   lseek
358#define  lseek   ___xxx_lseek
359
360static __inline__  int    adb_unlink(const char*  path)
361{
362    return  unlink(path);
363}
364#undef  unlink
365#define unlink  ___xxx_unlink
366
367static __inline__  int  adb_creat(const char*  path, int  mode)
368{
369    int  fd = creat(path, mode);
370
371	if ( fd < 0 )
372		return -1;
373
374    close_on_exec(fd);
375	return fd;
376}
377#undef   creat
378#define  creat  ___xxx_creat
379
380static __inline__ int  adb_socket_accept(int  serverfd, struct sockaddr*  addr, socklen_t  *addrlen)
381{
382    return  accept( serverfd, addr, addrlen );
383}
384
385#undef   accept
386#define  accept  ___xxx_accept
387
388#define  unix_read   adb_read
389#define  unix_write  adb_write
390#define  unix_close  adb_close
391
392typedef  pthread_t                 adb_thread_t;
393
394typedef void*  (*adb_thread_func_t)( void*  arg );
395
396static __inline__ int  adb_thread_create( adb_thread_t  *pthread, adb_thread_func_t  start, void*  arg )
397{
398    pthread_attr_t   attr;
399
400    pthread_attr_init (&attr);
401    pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
402
403    return pthread_create( pthread, &attr, start, arg );
404}
405
406static __inline__  int  adb_socket_setbufsize( int   fd, int  bufsize )
407{
408    int opt = bufsize;
409    return setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &opt, sizeof(opt));
410}
411
412static __inline__ void  disable_tcp_nagle(int fd)
413{
414    int  on = 1;
415    setsockopt( fd, IPPROTO_TCP, TCP_NODELAY, (void*)&on, sizeof(on) );
416}
417
418
419static __inline__ int  unix_socketpair( int  d, int  type, int  protocol, int sv[2] )
420{
421    return socketpair( d, type, protocol, sv );
422}
423
424static __inline__ int  adb_socketpair( int  sv[2] )
425{
426    int  rc;
427
428    rc = unix_socketpair( AF_UNIX, SOCK_STREAM, 0, sv );
429    if (rc < 0)
430        return -1;
431
432    close_on_exec( sv[0] );
433    close_on_exec( sv[1] );
434    return 0;
435}
436
437#undef   socketpair
438#define  socketpair   ___xxx_socketpair
439
440static __inline__ void  adb_sleep_ms( int  mseconds )
441{
442	usleep( mseconds*1000 );
443}
444
445static __inline__ int  adb_mkdir(const char*  path, int mode)
446{
447	return mkdir(path, mode);
448}
449#undef   mkdir
450#define  mkdir  ___xxx_mkdir
451
452static __inline__ void  adb_sysdeps_init(void)
453{
454}
455
456static __inline__ char*  adb_dirstart(const char*  path)
457{
458    return strchr(path, '/');
459}
460
461static __inline__ char*  adb_dirstop(const char*  path)
462{
463    return strrchr(path, '/');
464}
465
466static __inline__  int  adb_is_absolute_host_path( const char*  path )
467{
468    return path[0] == '/';
469}
470
471#endif /* !_WIN32 */
472
473#endif /* _ADB_SYSDEPS_H */
474