initcon.cpp File Reference

#include <corecrt_internal_lowio.h>

Include dependency graph for initcon.cpp:

Go to the source code of this file.

Functions
	_CRT_LINKER_FORCE_INCLUDE (__dcrt_console_output_terminator)
static void	__dcrt_lowio_initialize_console_output ()
BOOL __cdecl	__dcrt_lowio_ensure_console_output_initialized ()
void __cdecl	__dcrt_terminate_console_output ()
template<typename Func >
static BOOL	console_output_reopen_and_retry (Func const &fp) throw ()
BOOL __cdecl	__dcrt_write_console (_In_ void const *lpBuffer, _In_ DWORD nNumberOfCharsToWrite, _Out_ LPDWORD lpNumberOfCharsWritten)

Variables
static HANDLE	__dcrt_lowio_console_output_handle = _console_uninitialized_handle

Function Documentation

__dcrt_lowio_ensure_console_output_initialized()

BOOL __cdecl __dcrt_lowio_ensure_console_output_initialized

(

void

)

Definition at line 31 of file initcon.cpp.

{
    if (__dcrt_lowio_console_output_handle == _console_uninitialized_handle)
    {
        __dcrt_lowio_initialize_console_output();
    }
 
    if (__dcrt_lowio_console_output_handle == _console_invalid_handle)
    {
        return FALSE;
    }
    return TRUE;
}

Referenced by _cputws(), and _putwch_nolock().

__dcrt_lowio_initialize_console_output()

static void __dcrt_lowio_initialize_console_output ( )

static

Definition at line 19 of file initcon.cpp.

{
    __dcrt_lowio_console_output_handle = CreateFileW(
        L"CONOUT$",
        GENERIC_WRITE,
        FILE_SHARE_READ | FILE_SHARE_WRITE,
        nullptr,
        OPEN_EXISTING,
        0,
        nullptr);
}

Referenced by __dcrt_lowio_ensure_console_output_initialized(), and console_output_reopen_and_retry().

__dcrt_terminate_console_output()

void __cdecl __dcrt_terminate_console_output

(

)

Definition at line 46 of file initcon.cpp.

{
    if (   __dcrt_lowio_console_output_handle != _console_invalid_handle
        && __dcrt_lowio_console_output_handle != _console_uninitialized_handle)
    {
        CloseHandle(__dcrt_lowio_console_output_handle);
    }
}

Referenced by console_output_reopen_and_retry().

__dcrt_write_console()

BOOL __cdecl __dcrt_write_console	(	_In_ void const *	lpBuffer,
		_In_ DWORD	nNumberOfCharsToWrite,
		_Out_ LPDWORD	lpNumberOfCharsWritten
	)

Definition at line 67 of file initcon.cpp.

{
    return console_output_reopen_and_retry(
        [lpBuffer, nNumberOfCharsToWrite, lpNumberOfCharsWritten]()
        {
            return ::WriteConsoleW(
                __dcrt_lowio_console_output_handle,
                lpBuffer,
                nNumberOfCharsToWrite,
                lpNumberOfCharsWritten,
                nullptr);
        });
}

Referenced by _cputws(), and _putwch_nolock().

_CRT_LINKER_FORCE_INCLUDE()

_CRT_LINKER_FORCE_INCLUDE

(

__dcrt_console_output_terminator

)

console_output_reopen_and_retry()

template<typename Func >

static BOOL console_output_reopen_and_retry ( Func const &  fp ) throw ( )

static

Definition at line 56 of file initcon.cpp.

{
    BOOL result = fp();
    if (!result && GetLastError() == ERROR_INVALID_HANDLE) {
        __dcrt_terminate_console_output();
        __dcrt_lowio_initialize_console_output();
        result = fp();
    }
    return result;
}

Referenced by __dcrt_write_console().

Variable Documentation

__dcrt_lowio_console_output_handle

HANDLE __dcrt_lowio_console_output_handle = _console_uninitialized_handle

static

Definition at line 16 of file initcon.cpp.

Referenced by __dcrt_lowio_ensure_console_output_initialized(), __dcrt_lowio_initialize_console_output(), __dcrt_terminate_console_output(), and __dcrt_write_console().