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Introduce coroutine support (util/coro.hpp)

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Implement coroutine types `lazy` and `generator` in stx namespace.
Implement fs::list_dir_recursively.
This commit is contained in:
Nekotekina 2021-11-30 17:40:46 +03:00
parent d6420b8803
commit 6b40d69a8f
4 changed files with 409 additions and 1 deletions
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27
Utilities/File.cpp
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@ -9,6 +9,7 @@
#include <map>
#include "util/asm.hpp"
#include "util/coro.hpp"
using namespace std::literals::string_literals;
@ -1182,7 +1183,7 @@ fs::file::file(const std::string& path, bs_t<open_mode> mode)
for (const char* data = static_cast<const char*>(buffer); count;)
{
const DWORD size = static_cast<DWORD>(std::min<u64>(count, DWORD{umax} & -4096));
const DWORD size = static_cast<DWORD>(std::min<u64>(count, DWORD{umax} & -4096));
DWORD nwritten = 0;
ensure(WriteFile(m_handle, data, size, &nwritten, nullptr)); // "file::write"
@ -2039,6 +2040,30 @@ bool fs::pending_file::commit(bool overwrite)
return false;
}
stx::generator<fs::dir_entry&> fs::list_dir_recursively(std::string path)
{
for (auto& entry : fs::dir(path))
{
if (entry.name == "." || entry.name == "..")
{
continue;
}
std::string new_path = path_append(path, entry.name);
if (entry.is_directory)
{
for (auto& nested : fs::list_dir_recursively(new_path))
{
co_yield nested;
}
}
entry.name = std::move(new_path);
co_yield entry;
}
}
template<>
void fmt_class_string<fs::seek_mode>::format(std::string& out, u64 arg)
{