/* * Copyright (c) 2015, The Linux Foundation. All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, are permitted * provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this list of * conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright notice, this list of * conditions and the following disclaimer in the documentation and/or other materials provided * with the distribution. * * Neither the name of The Linux Foundation nor the names of its contributors may be used to * endorse or promote products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __SYS_H__ #define __SYS_H__ #include #include #include #include #include #include #include #include #ifdef SDM_VIRTUAL_DRIVER #include #endif namespace sdm { class Sys { public: #ifndef SDM_VIRTUAL_DRIVER typedef std::fstream fstream; #else typedef VirtualFStream fstream; #endif // Pointers to system calls which are either mapped to actual system call or virtual driver. typedef int (*ioctl)(int, int, ...); typedef int (*access)(const char *, int); typedef int (*open)(const char *, int, ...); typedef int (*close)(int); typedef int (*poll)(struct pollfd *, nfds_t, int); typedef ssize_t (*pread)(int, void *, size_t, off_t); typedef ssize_t (*pwrite)(int, const void *, size_t, off_t); typedef int (*pthread_cancel)(pthread_t thread); typedef int (*dup)(int fd); typedef ssize_t (*read)(int, void *, size_t); typedef ssize_t (*write)(int, const void *, size_t); typedef int (*eventfd)(unsigned int, int); static bool getline_(fstream &fs, std::string &line); // NOLINT static ioctl ioctl_; static access access_; static open open_; static close close_; static poll poll_; static pread pread_; static pwrite pwrite_; static pthread_cancel pthread_cancel_; static dup dup_; static read read_; static write write_; static eventfd eventfd_; }; class DynLib { public: ~DynLib(); bool Open(const char *lib_name); bool Sym(const char *func_name, void **func_ptr); const char * Error() { return ::dlerror(); } operator bool() const { return lib_ != NULL; } private: void Close(); void *lib_ = NULL; }; } // namespace sdm #endif // __SYS_H__