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// license:BSD-3-Clause
// copyright-holders:Aaron Giles, Vas Crabb
#include "winrtfile.h"
#include "strconv.h"
#include <cassert>
#include <windows.h>
#include <cstdlib>
namespace {
char const *const winfile_ptty_identifier = "\\\\.\\pipe\\";
class win_osd_ptty : public osd_file
{
public:
win_osd_ptty(win_osd_ptty const &) = delete;
win_osd_ptty(win_osd_ptty &&) = delete;
win_osd_ptty& operator=(win_osd_ptty const &) = delete;
win_osd_ptty& operator=(win_osd_ptty &&) = delete;
win_osd_ptty(HANDLE handle) : m_handle(handle)
{
assert(m_handle);
assert(INVALID_HANDLE_VALUE != m_handle);
}
~win_osd_ptty()
{
}
virtual error read(void *buffer, std::uint64_t offset, std::uint32_t count, std::uint32_t &actual) override
{
DWORD bytes_read;
if (!ReadFile(m_handle, buffer, count, &bytes_read, nullptr))
return win_error_to_file_error(GetLastError());
actual = bytes_read;
return error::NONE;
}
virtual error write(void const *buffer, std::uint64_t offset, std::uint32_t count, std::uint32_t &actual) override
{
DWORD bytes_written;
if (!WriteFile(m_handle, buffer, count, &bytes_written, nullptr))
return win_error_to_file_error(GetLastError());
actual = bytes_written;
return error::NONE;
}
virtual error truncate(std::uint64_t offset) override
{
// doesn't make sense for a PTTY
return error::INVALID_ACCESS;
}
virtual error flush() override
{
// don't want to wait for client to read all data as implied by FlushFileBuffers
return error::NONE;
}
private:
HANDLE m_handle;
};
} // anonymous namespace
bool win_check_ptty_path(std::string const &path)
{
if (strncmp(path.c_str(), winfile_ptty_identifier, strlen(winfile_ptty_identifier)) == 0) return true;
return false;
}
osd_file::error win_open_ptty(std::string const &path, std::uint32_t openflags, osd_file::ptr &file, std::uint64_t &filesize)
{
return osd_file::error::ACCESS_DENIED;
}
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