openfile.cpp File Reference

#include <corecrt_internal_stdio.h>
#include <sys/stat.h>

Include dependency graph for openfile.cpp:

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Functions
template<typename Character >
static FILE *__cdecl	common_openfile (Character const *const file_name, Character const *const mode, int const share_flag, __crt_stdio_stream const stream) throw ()
FILE *__cdecl	_openfile (char const *const file_name, char const *const mode, int const share_flag, FILE *const public_stream)
FILE *__cdecl	_wopenfile (wchar_t const *const file_name, wchar_t const *const mode, int const share_flag, FILE *const public_stream)

Function Documentation

_openfile()

FILE *__cdecl _openfile	(	char const *const	file_name,
		char const *const	mode,
		int const	share_flag,
		FILE *const	public_stream
	)

Definition at line 59 of file openfile.cpp.

{
    return common_openfile(file_name, mode, share_flag, __crt_stdio_stream(public_stream));
}

Referenced by __DEFINE_CPP_OVERLOAD_STANDARD_FUNC_0_0().

_wopenfile()

FILE *__cdecl _wopenfile	(	wchar_t const *const	file_name,
		wchar_t const *const	mode,
		int const	share_flag,
		FILE *const	public_stream
	)

Definition at line 69 of file openfile.cpp.

{
    return common_openfile(file_name, mode, share_flag, __crt_stdio_stream(public_stream));
}

Referenced by __DEFINE_CPP_OVERLOAD_STANDARD_FUNC_0_0().

common_openfile()

template<typename Character >

static FILE *__cdecl common_openfile ( Character const *const  file_name, Character const *const  mode, int const  share_flag, __crt_stdio_stream const  stream  ) throw ( )

static

Definition at line 20 of file openfile.cpp.

{
    typedef __acrt_stdio_char_traits<Character> stdio_traits;
 
    _ASSERTE(file_name != nullptr);
    _ASSERTE(mode      != nullptr);
    _ASSERTE(stream.valid());
 
    __acrt_stdio_stream_mode const parsed_mode = __acrt_stdio_parse_mode(mode);
    if (!parsed_mode._success)
        return nullptr;
 
    int fh;
    if (stdio_traits::tsopen_s(&fh, file_name, parsed_mode._lowio_mode, share_flag, _S_IREAD | _S_IWRITE) != 0)
        return nullptr;
 
    // Ensure that streams get flushed during pre-termination:
    #ifndef CRTDLL
    _cflush++;
    #endif
 
    // Initialize the stream:
    stream.set_flags(parsed_mode._stdio_mode);
    stream->_cnt      = 0;
    stream->_tmpfname = nullptr;
    stream->_base     = nullptr;
    stream->_ptr      = nullptr;
    stream->_file     = fh;
 
    return stream.public_stream();
}

Referenced by _openfile(), and _wopenfile().