/Src/Dependencies/Boost/boost/interprocess/detail/tmp_dir_helpers.hpp
http://hadesmem.googlecode.com/ · C++ Header · 172 lines · 136 code · 21 blank · 15 comment · 21 complexity · f0d54b8b1238034a56ad5e5aa4f7f1a2 MD5 · raw file
- //////////////////////////////////////////////////////////////////////////////
- //
- // (C) Copyright Ion Gaztanaga 2007-2009. Distributed under the Boost
- // Software License, Version 1.0. (See accompanying file
- // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
- //
- // See http://www.boost.org/libs/interprocess for documentation.
- //
- //////////////////////////////////////////////////////////////////////////////
- #ifndef BOOST_INTERPROCESS_DETAIL_TMP_DIR_HELPERS_HPP
- #define BOOST_INTERPROCESS_DETAIL_TMP_DIR_HELPERS_HPP
- #include <boost/interprocess/detail/config_begin.hpp>
- #include <boost/interprocess/detail/workaround.hpp>
- #include <boost/interprocess/detail/os_file_functions.hpp>
- #include <boost/interprocess/errors.hpp>
- #include <boost/interprocess/exceptions.hpp>
- #include <string>
- #if defined(BOOST_INTERPROCESS_WINDOWS)
- #define BOOST_INTERPROCESS_HAS_WINDOWS_KERNEL_BOOTTIME
- #define BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME
- #include <boost/interprocess/detail/win32_api.hpp>
- #elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
- #include <sys/sysctl.h>
- #if defined(CTL_KERN) && defined (KERN_BOOTTIME)
- #define BOOST_INTERPROCESS_HAS_BSD_KERNEL_BOOTTIME
- #define BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME
- #endif
- #endif
- namespace boost {
- namespace interprocess {
- namespace detail {
- #if defined (BOOST_INTERPROCESS_HAS_WINDOWS_KERNEL_BOOTTIME)
- inline void get_bootstamp(std::string &s, bool add = false)
- {
- std::string bootstamp;
- winapi::get_last_bootup_time(bootstamp);
- if(add){
- s += bootstamp;
- }
- else{
- s = bootstamp;
- }
- }
- #elif defined(BOOST_INTERPROCESS_HAS_BSD_KERNEL_BOOTTIME)
- inline void get_bootstamp(std::string &s, bool add = false)
- {
- // FreeBSD specific: sysctl "kern.boottime"
- int request[2] = { CTL_KERN, KERN_BOOTTIME };
- struct ::timeval result;
- size_t result_len = sizeof result;
- if (::sysctl (request, 2, &result, &result_len, NULL, 0) < 0)
- return;
- char bootstamp_str[256];
- const char Characters [] =
- { '0', '1', '2', '3', '4', '5', '6', '7'
- , '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
- std::size_t char_counter = 0;
- long fields[2] = { result.tv_sec, result.tv_usec };
- for(std::size_t field = 0; field != 2; ++field){
- for(std::size_t i = 0; i != sizeof(long); ++i){
- const char *ptr = (const char *)&fields[field];
- bootstamp_str[char_counter++] = Characters[(ptr[i]&0xF0)>>4];
- bootstamp_str[char_counter++] = Characters[(ptr[i]&0x0F)];
- }
- }
- bootstamp_str[char_counter] = 0;
- if(add){
- s += bootstamp_str;
- }
- else{
- s = bootstamp_str;
- }
- }
- #endif
- inline void get_tmp_base_dir(std::string &tmp_name)
- {
- #if defined (BOOST_INTERPROCESS_WINDOWS)
- winapi::get_shared_documents_folder(tmp_name);
- if(tmp_name.empty()){
- tmp_name = get_temporary_path();
- }
- #else
- tmp_name = get_temporary_path();
- #endif
- if(tmp_name.empty()){
- error_info err = system_error_code();
- throw interprocess_exception(err);
- }
- //Remove final null.
- tmp_name += "/boost_interprocess";
- }
- inline void tmp_folder(std::string &tmp_name)
- {
- get_tmp_base_dir(tmp_name);
- #ifdef BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME
- tmp_name += "/";
- get_bootstamp(tmp_name, true);
- #endif
- }
- inline void tmp_filename(const char *filename, std::string &tmp_name)
- {
- tmp_folder(tmp_name);
- tmp_name += "/";
- tmp_name += filename;
- }
- inline void create_tmp_and_clean_old(std::string &tmp_name)
- {
- //First get the temp directory
- std::string root_tmp_name;
- get_tmp_base_dir(root_tmp_name);
- //If fails, check that it's because already exists
- if(!create_directory(root_tmp_name.c_str())){
- error_info info(system_error_code());
- if(info.get_error_code() != already_exists_error){
- throw interprocess_exception(info);
- }
- }
- #ifdef BOOST_INTERPROCESS_HAS_KERNEL_BOOTTIME
- tmp_folder(tmp_name);
- //If fails, check that it's because already exists
- if(!create_directory(tmp_name.c_str())){
- error_info info(system_error_code());
- if(info.get_error_code() != already_exists_error){
- throw interprocess_exception(info);
- }
- }
- //Now erase all old directories created in the previous boot sessions
- std::string subdir = tmp_name;
- subdir.erase(0, root_tmp_name.size()+1);
- delete_subdirectories(root_tmp_name, subdir.c_str());
- #else
- tmp_name = root_tmp_name;
- #endif
- }
- inline void create_tmp_and_clean_old_and_get_filename(const char *filename, std::string &tmp_name)
- {
- create_tmp_and_clean_old(tmp_name);
- tmp_filename(filename, tmp_name);
- }
- inline void add_leading_slash(const char *name, std::string &new_name)
- {
- if(name[0] != '/'){
- new_name = '/';
- }
- new_name += name;
- }
- } //namespace boost{
- } //namespace interprocess {
- } //namespace detail {
- #include <boost/interprocess/detail/config_end.hpp>
- #endif //ifndef BOOST_INTERPROCESS_DETAIL_TMP_DIR_HELPERS_HPP