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/* Copyright(C) 2011-2015 Brazil
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "file.hpp"
#include "file-impl.hpp"
#include <new>
namespace grn {
namespace dat {
File::File() : impl_(NULL) {}
File::~File() {
delete impl_;
}
void File::create(const char *path, UInt64 size) {
File new_file;
new_file.impl_ = new (std::nothrow) FileImpl;
GRN_DAT_THROW_IF(MEMORY_ERROR, new_file.impl_ == NULL);
new_file.impl_->create(path, size);
new_file.swap(this);
}
void File::open(const char *path) {
File new_file;
new_file.impl_ = new (std::nothrow) FileImpl;
GRN_DAT_THROW_IF(MEMORY_ERROR, new_file.impl_ == NULL);
new_file.impl_->open(path);
new_file.swap(this);
}
void File::close() {
File().swap(this);
}
void *File::ptr() const {
return (impl_ != NULL) ? impl_->ptr() : NULL;
}
UInt64 File::size() const {
return (impl_ != NULL) ? impl_->size() : 0;
}
void File::swap(File *rhs) {
FileImpl * const temp = impl_;
impl_ = rhs->impl_;
rhs->impl_ = temp;
}
void File::flush() {
if (impl_) {
impl_->flush();
}
}
} // namespace dat
} // namespace grn
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