perror.cpp File Reference

#include <corecrt_internal.h>
#include <corecrt_internal_lowio.h>
#include <corecrt_internal_ptd_propagation.h>
#include <io.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

Include dependency graph for perror.cpp:

Go to the source code of this file.

Functions
static void __cdecl	_perror_internal (char const *const user_prefix, __crt_cached_ptd_host &ptd)
void __cdecl	perror (char const *const user_prefix)

Function Documentation

_perror_internal()

static void __cdecl _perror_internal ( char const *const  user_prefix, __crt_cached_ptd_host &  ptd  )

static

Definition at line 41 of file perror.cpp.

{
    int const fh = 2;
 
    __acrt_lowio_lock_fh(fh);
    __try
    {
        if (user_prefix != nullptr && user_prefix[0] != '\0')
        {
            _write_nolock(fh, user_prefix, static_cast<unsigned>(strlen(user_prefix)), ptd);
            _write_nolock(fh, ": ", 2, ptd);
        }
 
        // Use PTD directly to access previously set errno value.
        char const* const system_message = _get_sys_err_msg(ptd.get_raw_ptd()->_terrno);
 
        _write_nolock(fh, system_message, static_cast<unsigned>(strlen(system_message)), ptd);
        _write_nolock(fh, "\n", 1, ptd);
 
    }
    __finally
    {
        __acrt_lowio_unlock_fh( fh );
    }
    __endtry
}

Referenced by perror().

perror()

void __cdecl perror

(

char const *const

user_prefix

)

Definition at line 68 of file perror.cpp.

{
    __crt_cached_ptd_host ptd;
    return _perror_internal(user_prefix, ptd);
}