1 /*
2 * Copyright (c) 2015, The Linux Foundation. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above
10 * copyright notice, this list of conditions and the following
11 * disclaimer in the documentation and/or other materials provided
12 * with the distribution.
13 * * Neither the name of The Linux Foundation nor the names of its
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include <utils/sys.h>
31 #include <sys/ioctl.h>
32 #include <fcntl.h>
33 #include <unistd.h>
34
35 #define __CLASS__ "Sys"
36
37 namespace sdm {
38
39 #ifndef SDM_VIRTUAL_DRIVER
40
PthreadCancel(pthread_t)41 int PthreadCancel(pthread_t /* thread */) {
42 return 0;
43 }
44
45 // Pointer to actual driver interfaces.
46 Sys::ioctl Sys::ioctl_ = ::ioctl;
47 Sys::open Sys::open_ = ::open;
48 Sys::close Sys::close_ = ::close;
49 Sys::poll Sys::poll_ = ::poll;
50 Sys::pread Sys::pread_ = ::pread;
51 Sys::pwrite Sys::pwrite_ = ::pwrite;
52 Sys::fopen Sys::fopen_ = ::fopen;
53 Sys::fclose Sys::fclose_ = ::fclose;
54 Sys::getline Sys::getline_ = ::getline;
55 Sys::pthread_cancel Sys::pthread_cancel_ = PthreadCancel;
56 Sys::dup Sys::dup_ = ::dup;
57
58 #else
59
60 // Point to virtual driver interfaces.
61 extern int virtual_ioctl(int fd, int cmd, ...);
62 extern int virtual_open(const char *file_name, int access, ...);
63 extern int virtual_close(int fd);
64 extern int virtual_poll(struct pollfd *fds, nfds_t num, int timeout);
65 extern ssize_t virtual_pread(int fd, void *data, size_t count, off_t offset);
66 extern ssize_t virtual_pwrite(int fd, const void *data, size_t count, off_t offset);
67 extern FILE* virtual_fopen(const char *fname, const char *mode);
68 extern int virtual_fclose(FILE* fileptr);
69 extern ssize_t virtual_getline(char **lineptr, size_t *linelen, FILE *stream);
70 extern int virtual_dup(int fd);
71
72 Sys::ioctl Sys::ioctl_ = virtual_ioctl;
73 Sys::open Sys::open_ = virtual_open;
74 Sys::close Sys::close_ = virtual_close;
75 Sys::poll Sys::poll_ = virtual_poll;
76 Sys::pread Sys::pread_ = virtual_pread;
77 Sys::pwrite Sys::pwrite_ = virtual_pwrite;
78 Sys::fopen Sys::fopen_ = virtual_fopen;
79 Sys::fclose Sys::fclose_ = virtual_fclose;
80 Sys::getline Sys::getline_ = virtual_getline;
81 Sys::pthread_cancel Sys::pthread_cancel_ = ::pthread_cancel;
82 Sys::dup Sys::dup_ = virtual_dup;
83
84 #endif // SDM_VIRTUAL_DRIVER
85
86 } // namespace sdm
87
88