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/properties.h>
265#include <cutils/misc.h>
266#include <signal.h>
267#include <sys/wait.h>
268#include <sys/stat.h>
269#include <fcntl.h>
270
271#include <pthread.h>
272#include <unistd.h>
273#include <fcntl.h>
274#include <stdarg.h>
275#include <netinet/in.h>
276#include <netinet/tcp.h>
277#include <string.h>
278
279#define OS_PATH_SEPARATOR '/'
280#define OS_PATH_SEPARATOR_STR "/"
281#define ENV_PATH_SEPARATOR_STR ":"
282
283typedef  pthread_mutex_t          adb_mutex_t;
284
285#define  ADB_MUTEX_INITIALIZER    PTHREAD_MUTEX_INITIALIZER
286#define  adb_mutex_init           pthread_mutex_init
287#define  adb_mutex_lock           pthread_mutex_lock
288#define  adb_mutex_unlock         pthread_mutex_unlock
289#define  adb_mutex_destroy        pthread_mutex_destroy
290
291#define  ADB_MUTEX_DEFINE(m)      adb_mutex_t   m = PTHREAD_MUTEX_INITIALIZER
292
293#define  adb_cond_t               pthread_cond_t
294#define  adb_cond_init            pthread_cond_init
295#define  adb_cond_wait            pthread_cond_wait
296#define  adb_cond_broadcast       pthread_cond_broadcast
297#define  adb_cond_signal          pthread_cond_signal
298#define  adb_cond_destroy         pthread_cond_destroy
299
300/* declare all mutexes */
301#define  ADB_MUTEX(x)   extern adb_mutex_t  x;
302#include "mutex_list.h"
303
304static __inline__ void  close_on_exec(int  fd)
305{
306    fcntl( fd, F_SETFD, FD_CLOEXEC );
307}
308
309static __inline__ int  unix_open(const char*  path, int options,...)
310{
311    if ((options & O_CREAT) == 0)
312    {
313        return  open(path, options);
314    }
315    else
316    {
317        int      mode;
318        va_list  args;
319        va_start( args, options );
320        mode = va_arg( args, int );
321        va_end( args );
322        return open(path, options, mode);
323    }
324}
325
326static __inline__ int  adb_open_mode( const char*  pathname, int  options, int  mode )
327{
328    return open( pathname, options, mode );
329}
330
331
332static __inline__ int  adb_open( const char*  pathname, int  options )
333{
334    int  fd = open( pathname, options );
335    if (fd < 0)
336        return -1;
337    close_on_exec( fd );
338    return fd;
339}
340#undef   open
341#define  open    ___xxx_open
342
343static __inline__ int  adb_shutdown(int fd)
344{
345    return shutdown(fd, SHUT_RDWR);
346}
347#undef   shutdown
348#define  shutdown   ____xxx_shutdown
349
350static __inline__ int  adb_close(int fd)
351{
352    return close(fd);
353}
354#undef   close
355#define  close   ____xxx_close
356
357
358static __inline__  int  adb_read(int  fd, void*  buf, size_t  len)
359{
360    return read(fd, buf, len);
361}
362
363#undef   read
364#define  read  ___xxx_read
365
366static __inline__  int  adb_write(int  fd, const void*  buf, size_t  len)
367{
368    return write(fd, buf, len);
369}
370#undef   write
371#define  write  ___xxx_write
372
373static __inline__ int   adb_lseek(int  fd, int  pos, int  where)
374{
375    return lseek(fd, pos, where);
376}
377#undef   lseek
378#define  lseek   ___xxx_lseek
379
380static __inline__  int    adb_unlink(const char*  path)
381{
382    return  unlink(path);
383}
384#undef  unlink
385#define unlink  ___xxx_unlink
386
387static __inline__  int  adb_creat(const char*  path, int  mode)
388{
389    int  fd = creat(path, mode);
390
391    if ( fd < 0 )
392        return -1;
393
394    close_on_exec(fd);
395    return fd;
396}
397#undef   creat
398#define  creat  ___xxx_creat
399
400static __inline__ int  adb_socket_accept(int  serverfd, struct sockaddr*  addr, socklen_t  *addrlen)
401{
402    int fd;
403
404    fd = accept(serverfd, addr, addrlen);
405    if (fd >= 0)
406        close_on_exec(fd);
407
408    return fd;
409}
410
411#undef   accept
412#define  accept  ___xxx_accept
413
414#define  unix_read   adb_read
415#define  unix_write  adb_write
416#define  unix_close  adb_close
417
418typedef  pthread_t                 adb_thread_t;
419
420typedef void*  (*adb_thread_func_t)( void*  arg );
421
422static __inline__ int  adb_thread_create( adb_thread_t  *pthread, adb_thread_func_t  start, void*  arg )
423{
424    pthread_attr_t   attr;
425
426    pthread_attr_init (&attr);
427    pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
428
429    return pthread_create( pthread, &attr, start, arg );
430}
431
432static __inline__  int  adb_socket_setbufsize( int   fd, int  bufsize )
433{
434    int opt = bufsize;
435    return setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &opt, sizeof(opt));
436}
437
438static __inline__ void  disable_tcp_nagle(int fd)
439{
440    int  on = 1;
441    setsockopt( fd, IPPROTO_TCP, TCP_NODELAY, (void*)&on, sizeof(on) );
442}
443
444
445static __inline__ int  unix_socketpair( int  d, int  type, int  protocol, int sv[2] )
446{
447    return socketpair( d, type, protocol, sv );
448}
449
450static __inline__ int  adb_socketpair( int  sv[2] )
451{
452    int  rc;
453
454    rc = unix_socketpair( AF_UNIX, SOCK_STREAM, 0, sv );
455    if (rc < 0)
456        return -1;
457
458    close_on_exec( sv[0] );
459    close_on_exec( sv[1] );
460    return 0;
461}
462
463#undef   socketpair
464#define  socketpair   ___xxx_socketpair
465
466static __inline__ void  adb_sleep_ms( int  mseconds )
467{
468    usleep( mseconds*1000 );
469}
470
471static __inline__ int  adb_mkdir(const char*  path, int mode)
472{
473    return mkdir(path, mode);
474}
475#undef   mkdir
476#define  mkdir  ___xxx_mkdir
477
478static __inline__ void  adb_sysdeps_init(void)
479{
480}
481
482static __inline__ char*  adb_dirstart(const char*  path)
483{
484    return strchr(path, '/');
485}
486
487static __inline__ char*  adb_dirstop(const char*  path)
488{
489    return strrchr(path, '/');
490}
491
492static __inline__  int  adb_is_absolute_host_path( const char*  path )
493{
494    return path[0] == '/';
495}
496
497static __inline__ char*  adb_strtok_r(char *str, const char *delim, char **saveptr)
498{
499    return strtok_r(str, delim, saveptr);
500}
501#undef   strtok_r
502#define  strtok_r  ___xxx_strtok_r
503
504#endif /* !_WIN32 */
505
506#endif /* _ADB_SYSDEPS_H */
507