125 lines
1.9 KiB
C++
125 lines
1.9 KiB
C++
#include <algorithm>
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#include <cerrno>
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#include <File/File.h>
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#include <Common/Exception.h>
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#include <POSIX/Exception.h>
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File::File()
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{
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_fd = -1;
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}
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File::File(int fd)
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{
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_fd = fd;
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}
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File::File(File& f)
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{
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_fd = f._fd;
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f._fd = -1;
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}
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File::File(const char *name, int flags, const std::nothrow_t&)
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{
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_fd = ::open(name, flags);
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}
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File::File(const char *name, int flags, mode_t mode, const std::nothrow_t&)
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{
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_fd = ::open(name, flags, mode);
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}
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File::File(const char *name, FileFlags flags, const std::nothrow_t&)
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{
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_fd = ::open(name, flags == ReadOnly ? O_RDONLY : O_RDWR);
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}
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File::File(const char *name, int flags)
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{
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#undef __METHOD__
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#define __METHOD__ "File::File"
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_fd = ::open(name, flags);
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if (_fd < 0)
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throw POSIX::Exception( __METHOD__ ": open", errno);
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}
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File::File(const char *name, int flags, mode_t mode)
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{
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#undef __METHOD__
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#define __METHOD__ "File::File"
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_fd = ::open(name, flags, mode);
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if (_fd < 0)
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throw POSIX::Exception( __METHOD__ ": open", errno);
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}
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File::File(const char *name, FileFlags flags)
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{
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#undef __METHOD__
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#define __METHOD__ "File::File"
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_fd = ::open(name, flags == ReadOnly ? O_RDONLY : O_RDWR);
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if (_fd < 0)
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throw POSIX::Exception( __METHOD__ ": open", errno);
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}
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File::~File()
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{
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close();
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}
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int File::release()
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{
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int tmp = _fd;
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_fd = -1;
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return tmp;
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}
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void File::close()
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{
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#undef __METHOD__
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#define __METHOD__ "File::close"
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if (_fd >= 0)
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{
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::close(_fd);
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_fd = -1;
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// destructor shouldn't throw.
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/*
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if (::close(fd) != 0)
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throw POSIX::Exception(__METHOD__ ": close", errno);
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*/
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}
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}
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void File::adopt(File &f)
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{
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if (&f == this) return;
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close();
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_fd = f._fd;
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f._fd = -1;
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}
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void File::adopt(int fd)
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{
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if (fd == _fd) return;
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close();
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_fd = fd;
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}
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void File::swap(File &f)
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{
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std::swap(_fd, f._fd);
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}
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