| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_shell.hxx" |
| |
| #ifndef INCLUDED_RECENTLY_USED_FILE |
| #include "recently_used_file.hxx" |
| #endif |
| #include <rtl/ustring.hxx> |
| #include <osl/process.h> |
| #include <osl/security.hxx> |
| #include <osl/thread.h> |
| #include <osl/file.hxx> |
| |
| #include <sys/file.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| #include <unistd.h> |
| |
| const rtl::OUString RECENTLY_USED_FILE_NAME = rtl::OUString::createFromAscii(".recently-used"); |
| const rtl::OUString SLASH = rtl::OUString::createFromAscii("/"); |
| |
| namespace /* private */ { |
| |
| inline void ensure_final_slash(/*inout*/ rtl::OUString& path) |
| { |
| if ((path.getLength() > 0) && |
| (SLASH.pData->buffer[0] != path.pData->buffer[path.getLength() - 1])) |
| path += SLASH; |
| } |
| |
| } // namespace private |
| |
| //------------------------------------------------ |
| recently_used_file::recently_used_file() : |
| file_(NULL) |
| { |
| osl::Security sec; |
| rtl::OUString homedir_url; |
| |
| if (sec.getHomeDir(homedir_url)) |
| { |
| rtl::OUString homedir; |
| osl::FileBase::getSystemPathFromFileURL(homedir_url, homedir); |
| |
| rtl::OUString rufn = homedir; |
| ensure_final_slash(rufn); |
| rufn += RECENTLY_USED_FILE_NAME; |
| |
| rtl::OString tmp = |
| rtl::OUStringToOString(rufn, osl_getThreadTextEncoding()); |
| |
| file_ = fopen(tmp.getStr(), "r+"); |
| |
| /* create if not exist */ |
| if (NULL == file_) { |
| mode_t umask_ = umask(S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH); |
| file_ = fopen(tmp.getStr(), "w+"); |
| umask(umask_); |
| } |
| |
| if (NULL == file_) |
| throw "I/O error opening ~/.recently-used"; |
| |
| if (lockf(fileno(file_), F_LOCK, 0) != 0) |
| { |
| fclose(file_); |
| throw "Cannot lock ~/.recently-used"; |
| } |
| } |
| else |
| throw "Cannot determine user home directory"; |
| } |
| |
| //------------------------------------------------ |
| recently_used_file::~recently_used_file() |
| { |
| lockf(fileno(file_), F_ULOCK, 0); |
| fclose(file_); |
| } |
| |
| //------------------------------------------------ |
| void recently_used_file::reset() const |
| { |
| rewind(file_); |
| } |
| |
| //------------------------------------------------ |
| void recently_used_file::truncate(off_t length) |
| { |
| if (ftruncate(fileno(file_), length) == -1) |
| throw "I/O error: ftruncate failed"; |
| } |
| |
| //------------------------------------------------ |
| size_t recently_used_file::read(char* buffer, size_t size) const |
| { |
| size_t r = fread(reinterpret_cast<void*>(buffer), sizeof(char), size, file_); |
| |
| if ((r < size) && ferror(file_)) |
| throw "I/O error: read failed"; |
| |
| return r; |
| } |
| |
| //---------------------------- |
| void recently_used_file::write(const char* buffer, size_t size) const |
| { |
| if (size != fwrite(reinterpret_cast<const void*>(buffer), sizeof(char), size, file_)) |
| throw "I/O error: write failed"; |
| } |
| |
| //---------------------------- |
| bool recently_used_file::eof() const |
| { |
| return feof(file_); |
| } |
| |
| |
| |
| |