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// Copyright (C) 2003 Davis E. King ([email protected])
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_DIR_NAV_KERNEL_1_CPp_
#define DLIB_DIR_NAV_KERNEL_1_CPp_
#include "../platform.h"
#ifdef WIN32
#include "dir_nav_kernel_1.h"
#include "../string.h"
#ifdef __BORLANDC__
// Apparently the borland compiler doesn't define this.
#define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
#endif
namespace dlib
{
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// file object implementation
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
void file::
init (
const std::string& name
)
{
using namespace std;
char buf[3000];
char* str;
if (GetFullPathNameA(name.c_str(),sizeof(buf),buf,&str) == 0)
{
// the file was not found
throw file_not_found("Unable to find file " + name);
}
state.full_name = buf;
string::size_type pos = state.full_name.find_last_of(directory::get_separator());
if (pos == string::npos)
{
// no valid full path has no separator characters.
throw file_not_found("Unable to find file " + name);
}
state.name = state.full_name.substr(pos+1);
// now find the size of this file
WIN32_FIND_DATAA data;
HANDLE ffind = FindFirstFileA(state.full_name.c_str(), &data);
if (ffind == INVALID_HANDLE_VALUE ||
(data.dwFileAttributes&FILE_ATTRIBUTE_DIRECTORY) != 0)
{
throw file_not_found("Unable to find file " + name);
}
else
{
uint64 temp = data.nFileSizeHigh;
temp <<= 32;
temp |= data.nFileSizeLow;
state.file_size = temp;
FindClose(ffind);
ULARGE_INTEGER ull;
ull.LowPart = data.ftLastWriteTime.dwLowDateTime;
ull.HighPart = data.ftLastWriteTime.dwHighDateTime;
std::chrono::nanoseconds epoch(100 * (ull.QuadPart - 116444736000000000));
state.last_modified = std::chrono::time_point<std::chrono::system_clock>(std::chrono::duration_cast<std::chrono::system_clock::duration>(epoch));
}
}
// ----------------------------------------------------------------------------------------
bool file::
operator == (
const file& rhs
) const
{
using namespace std;
if (state.full_name.size() != rhs.state.full_name.size())
return false;
// compare the strings but ignore the case because file names
// are not case sensitive on windows
return tolower(state.full_name) == tolower(rhs.state.full_name);
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// directory object implementation
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
void directory::
init (
const std::string& name
)
{
using namespace std;
char buf[3000];
char* str;
if (GetFullPathNameA(name.c_str(),sizeof(buf),buf,&str) == 0)
{
// the directory was not found
throw dir_not_found("Unable to find directory " + name);
}
state.full_name = buf;
const char sep = get_separator();
if (is_root_path(state.full_name) == false)
{
// ensure that thre is not a trialing separator
if (state.full_name[state.full_name.size()-1] == sep)
state.full_name.erase(state.full_name.size()-1);
// pick out the directory name
string::size_type pos = state.full_name.find_last_of(sep);
state.name = state.full_name.substr(pos+1);
}
else
{
// ensure that there is a trailing separator
if (state.full_name[state.full_name.size()-1] != sep)
state.full_name += sep;
}
// now check that this is actually a valid directory
DWORD attribs = GetFileAttributesA(state.full_name.c_str());
if (attribs == INVALID_FILE_ATTRIBUTES ||
(attribs&FILE_ATTRIBUTE_DIRECTORY) == 0)
{
// the directory was not found
throw dir_not_found("Unable to find directory " + name);
}
}
// ----------------------------------------------------------------------------------------
char directory::
get_separator (
)
{
return '\\';
}
// ----------------------------------------------------------------------------------------
bool directory::
operator == (
const directory& rhs
) const
{
using namespace std;
if (state.full_name.size() != rhs.state.full_name.size())
return false;
// compare the strings but ignore the case because file names
// are not case sensitive on windows
return tolower(state.full_name) == tolower(rhs.state.full_name);
}
// ----------------------------------------------------------------------------------------
const directory directory::
get_parent (
) const
{
using namespace std;
// if *this is the root then just return *this
if (is_root())
{
return *this;
}
else
{
directory temp;
const char sep = get_separator();
string::size_type pos = state.full_name.find_last_of(sep);
temp.state.full_name = state.full_name.substr(0,pos);
if ( is_root_path(temp.state.full_name))
{
temp.state.full_name += sep;
}
else
{
pos = temp.state.full_name.find_last_of(sep);
if (pos != string::npos)
{
temp.state.name = temp.state.full_name.substr(pos+1);
}
else
{
temp.state.full_name += sep;
}
}
return temp;
}
}
// ----------------------------------------------------------------------------------------
bool directory::
is_root_path (
const std::string& path
) const
{
using namespace std;
const char sep = get_separator();
bool root_path = false;
if (path.size() > 2 && path[0] == sep && path[1] == sep)
{
// in this case this is a windows share path
string::size_type pos = path.find_first_of(sep,2);
if (pos != string::npos)
{
pos = path.find_first_of(sep,pos+1);
if (pos == string::npos && path[path.size()-1] != sep)
root_path = true;
else if (pos == path.size()-1)
root_path = true;
}
}
else if ( (path.size() == 2 || path.size() == 3) && path[1] == ':')
{
// if this is a valid windows path then it must be a root path
root_path = true;
}
return root_path;
}
// ----------------------------------------------------------------------------------------
}
#endif // WIN32
#endif // DLIB_DIR_NAV_KERNEL_1_CPp_
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