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/*
* Copyright 2018 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "sys.hpp"
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <cstdint>
namespace internal
{
std::int64_t SysImpl::getSize(const char* pathname) const
{
struct stat results;
int rc = ::stat(pathname, &results);
if (rc)
{
return 0;
}
return static_cast<std::int64_t>(results.st_size);
}
int SysImpl::open(const char* pathname, int flags) const
{
return ::open(pathname, flags);
}
int SysImpl::read(int fd, void* buf, std::size_t count) const
{
return static_cast<int>(::read(fd, buf, count));
}
int SysImpl::pread(int fd, void* buf, std::size_t count, off_t offset) const
{
return static_cast<int>(::pread(fd, buf, count, offset));
}
int SysImpl::pwrite(int fd, const void* buf, std::size_t count,
off_t offset) const
{
return static_cast<int>(::pwrite(fd, buf, count, offset));
}
int SysImpl::close(int fd) const
{
return ::close(fd);
}
void* SysImpl::mmap(void* addr, std::size_t length, int prot, int flags, int fd,
off_t offset) const
{
return ::mmap(addr, length, prot, flags, fd, offset);
}
int SysImpl::munmap(void* addr, std::size_t length) const
{
return ::munmap(addr, length);
}
int SysImpl::getpagesize() const
{
return ::getpagesize();
}
int SysImpl::ioctl(int fd, unsigned long request, void* param) const
{
return ::ioctl(fd, request, param);
}
int SysImpl::poll(struct pollfd* fds, nfds_t nfds, int timeout) const
{
return ::poll(fds, nfds, timeout);
}
SysImpl sys_impl;
} // namespace internal
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