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fs::dir improved

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FindFirstFileExW used
Immediate directory read
This commit is contained in:
Nekotekina 2016-08-18 15:14:08 +03:00
parent c20756136a
commit e3bc2273d3
1 changed files with 11 additions and 18 deletions
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29
Utilities/File.cpp
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@ -932,7 +932,7 @@ bool fs::dir::open(const std::string& path)
#ifdef _WIN32
WIN32_FIND_DATAW found;
const auto handle = FindFirstFileW(to_wchar(path + "/*").get(), &found);
const auto handle = FindFirstFileExW(to_wchar(path + "/*").get(), FindExInfoBasic, &found, FindExSearchNameMatch, NULL, FIND_FIRST_EX_CASE_SENSITIVE | FIND_FIRST_EX_LARGE_FETCH);
if (handle == INVALID_HANDLE_VALUE)
{
@ -942,8 +942,6 @@ bool fs::dir::open(const std::string& path)
class windows_dir final : public dir_base
{
const HANDLE m_handle;
std::vector<dir_entry> m_entries;
std::size_t m_pos = 0;
@ -963,29 +961,24 @@ bool fs::dir::open(const std::string& path)
}
public:
windows_dir(HANDLE handle, const WIN32_FIND_DATAW& found)
: m_handle(handle)
windows_dir(HANDLE handle, WIN32_FIND_DATAW& found)
{
add_entry(found);
}
~windows_dir()
{
FindClose(m_handle);
while (FindNextFileW(handle, &found))
{
add_entry(found);
}
verify("dir::read" HERE), ERROR_NO_MORE_FILES == GetLastError();
FindClose(handle);
}
bool read(dir_entry& out) override
{
if (m_pos == m_entries.size())
if (m_pos >= m_entries.size())
{
WIN32_FIND_DATAW found;
if (!FindNextFileW(m_handle, &found))
{
verify("dir::read" HERE), ERROR_NO_MORE_FILES == GetLastError();
return false;
}
add_entry(found);
return false;
}
out = m_entries[m_pos++];