status.cpp File Reference

#include "precompiled.h"
#include "lib/status.h"
#include <cstring>
#include <cstdio>
#include "lib/posix/posix_errno.h"

Go to the source code of this file.

Functions
StatusDefinitionBucket *	StatusAddDefinitions (StatusDefinitionBucket *bucket)
	(called via STATUS_ADD_DEFINITIONS) More...
static const StatusDefinition *	DefinitionFromStatus (Status status)
static const StatusDefinition *	DefinitionFromErrno (int errno_equivalent)
wchar_t *	StatusDescription (Status status, wchar_t *buf, size_t max_chars)
	generate textual description of a Status. More...
int	ErrnoFromStatus (Status status)
Status	StatusFromErrno ()
	STATUS_ADD_DEFINITIONS (statusDefs)

Variables
static StatusDefinitionBucket *	buckets
static const StatusDefinition	statusDefs []

Function Documentation

static const StatusDefinition* DefinitionFromErrno ( int  errno_equivalent )

static

Definition at line 64 of file status.cpp.

static const StatusDefinition* DefinitionFromStatus ( Status  status )

static

Definition at line 49 of file status.cpp.

int ErrnoFromStatus

(

Status

status

)

Returns

the errno equivalent of a Status.

used in wposix - underlying functions return Status but must be translated to errno at e.g. the mmap interface level. higher-level code that calls mmap will in turn convert back to Status.

Definition at line 93 of file status.cpp.

STATUS_ADD_DEFINITIONS

(

statusDefs

)

StatusDefinitionBucket* StatusAddDefinitions

(

StatusDefinitionBucket *

bucket

)

(called via STATUS_ADD_DEFINITIONS)

Parameters

bucket

is being added; its definitions and numDefinitions must already be initialized.

Returns

previous bucket in list, suitable for initializing bucket->next.

(this function must be callable as a static initializer; initializing next avoids the need for a separate dummy variable)

Definition at line 40 of file status.cpp.

wchar_t* StatusDescription	(	Status	status,
		wchar_t *	buf,
		size_t	max_chars
	)

generate textual description of a Status.

Parameters

buf	destination buffer (allows generating strings with the code's numerical value if no definition is found)
max_chars	size of buffer [characters]

Returns

buf (allows using this function in expressions)

Definition at line 79 of file status.cpp.

Status StatusFromErrno

(

)

Returns

Status equivalent of errno, or ERR::FAIL if there's no equivalent.

NB: reset errno to 0 before calling POSIX functions to avoid confusion with previous errors.

Definition at line 105 of file status.cpp.

Variable Documentation

StatusDefinitionBucket* buckets

static

Definition at line 38 of file status.cpp.

const StatusDefinition statusDefs[]

static

Definition at line 116 of file status.cpp.