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commented util.h

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This commit is contained in:
jebes 2014-09-09 20:18:23 -04:00
parent bf972c40fc
commit c085e9294f
5 changed files with 102 additions and 44 deletions
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45
src/common/util.h
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@ -39,11 +39,41 @@
#include "misc_language.h"
#include "p2p/p2p_protocol_defs.h"
/*! \brief Various Tools
*
*
*
*/
namespace tools
{
/*! \brief Returns the default data directory.
*
* \details Windows < Vista: C:\\Documents and Settings\\Username\\Application Data\\CRYPTONOTE_NAME
*
* Windows >= Vista: C:\\Users\\Username\\AppData\\Roaming\\CRYPTONOTE_NAME
*
* Mac: ~/Library/Application Support/CRYPTONOTE_NAME
*
* Unix: ~/.CRYPTONOTE_NAME
*/
std::string get_default_data_dir();
/*! \breif Returns the OS version string
*
* \details This is a wrapper around the primitives
* get_windows_version_display_string() and
* get_nix_version_display_string()
*/
std::string get_os_version_string();
/*! \breif creates directories for a path
*
* wrapper around boost::filesyste::create_directories.
* (ensure-directory-exists): greenspun's tenth rule in action!
*/
bool create_directories_if_necessary(const std::string& path);
/*! \brief std::rename wrapper for nix and something strange for windows.
*/
std::error_code replace_file(const std::string& replacement_name, const std::string& replaced_name);
inline crypto::hash get_proof_of_trust_hash(const nodetool::proof_of_trust& pot)
@ -54,10 +84,12 @@ namespace tools
return crypto::cn_fast_hash(s.data(), s.size());
}
/*! \breif Defines a signal handler for win32 and *nix
*/
class signal_handler
{
public:
/*! \brief installs a signal handler */
template<typename T>
static bool install(T t)
{
@ -69,6 +101,7 @@ namespace tools
}
return r;
#else
/* Only blocks SIGINT and SIGTERM */
signal(SIGINT, posix_handler);
signal(SIGTERM, posix_handler);
m_handler = t;
@ -78,12 +111,12 @@ namespace tools
private:
#if defined(WIN32)
/*! \breif Handler for win */
static BOOL WINAPI win_handler(DWORD type)
{
if (CTRL_C_EVENT == type || CTRL_BREAK_EVENT == type)
{
handle_signal();
return TRUE;
}
else
{
@ -93,20 +126,22 @@ namespace tools
return TRUE;
}
#else
/*! \breif handler for NIX */
static void posix_handler(int /*type*/)
{
handle_signal();
}
#endif
/*! \breif calles m_handler */
static void handle_signal()
{
static std::mutex m_mutex;
std::unique_lock<std::mutex> lock(m_mutex);
/* static std::mutex m_mutex; */
/* std::unique_lock<std::mutex> lock(m_mutex); */
m_handler();
}
private:
/*! \breif where the installed handler is stored */
static std::function<void(void)> m_handler;
};
}