1 /* 2 * Copyright (c) 2015, The Linux Foundation. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without modification, are permitted 5 * provided that the following conditions are met: 6 * * Redistributions of source code must retain the above copyright notice, this list of 7 * conditions and the following disclaimer. 8 * * Redistributions in binary form must reproduce the above copyright notice, this list of 9 * conditions and the following disclaimer in the documentation and/or other materials provided 10 * with the distribution. 11 * * Neither the name of The Linux Foundation nor the names of its contributors may be used to 12 * endorse or promote products derived from this software without specific prior written 13 * permission. 14 * 15 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 17 * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 19 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 20 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 21 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 22 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25 #ifndef __SYS_H__ 26 #define __SYS_H__ 27 28 #include <stdio.h> 29 #include <stdlib.h> 30 #include <poll.h> 31 #include <pthread.h> 32 33 namespace sdm { 34 35 class Sys { 36 public: 37 // Pointers to system calls which are either mapped to actual system call or virtual driver. 38 typedef int (*ioctl)(int, int, ...); 39 typedef int (*open)(const char *, int, ...); 40 typedef int (*close)(int); 41 typedef int (*poll)(struct pollfd *, nfds_t, int); 42 typedef ssize_t (*pread)(int, void *, size_t, off_t); 43 typedef ssize_t (*pwrite)(int, const void *, size_t, off_t); 44 typedef FILE* (*fopen)( const char *fname, const char *mode); 45 typedef int (*fclose)(FILE* fileptr); 46 typedef ssize_t (*getline)(char **lineptr, size_t *linelen, FILE *stream); 47 typedef int (*pthread_cancel)(pthread_t thread); 48 typedef int (*dup)(int fd); 49 50 static ioctl ioctl_; 51 static open open_; 52 static close close_; 53 static poll poll_; 54 static pread pread_; 55 static pwrite pwrite_; 56 static fopen fopen_; 57 static fclose fclose_; 58 static getline getline_; 59 static pthread_cancel pthread_cancel_; 60 static dup dup_; 61 }; 62 63 } // namespace sdm 64 65 #endif // __SYS_H__ 66