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/*
* 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 <sys/eventfd.h>
#include <dlfcn.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <poll.h>
#include <pthread.h>
#include <fstream>
#ifdef SDM_VIRTUAL_DRIVER
#include <virtual_driver.h>
#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.
#ifdef TARGET_HEADLESS
typedef int (*ioctl)(int, unsigned long int, ...); // NOLINT
#else
typedef int (*ioctl)(int, int, ...);
#endif
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__
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