d2e064a73e
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
/*
|
|
* QEMU Error Objects
|
|
*
|
|
* Copyright IBM, Corp. 2011
|
|
*
|
|
* Authors:
|
|
* Anthony Liguori <aliguori@us.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU LGPL, version 2. See
|
|
* the COPYING.LIB file in the top-level directory.
|
|
*/
|
|
#ifndef ERROR_H
|
|
#define ERROR_H
|
|
|
|
#include "qemu/compiler.h"
|
|
#include "qapi-types.h"
|
|
#include <stdbool.h>
|
|
|
|
/**
|
|
* A class representing internal errors within QEMU. An error has a ErrorClass
|
|
* code and a human message.
|
|
*/
|
|
typedef struct Error Error;
|
|
|
|
/**
|
|
* Set an indirect pointer to an error given a ErrorClass value and a
|
|
* printf-style human message. This function is not meant to be used outside
|
|
* of QEMU.
|
|
*/
|
|
void error_set(Error **errp, ErrorClass err_class, const char *fmt, ...)
|
|
GCC_FMT_ATTR(3, 4);
|
|
|
|
/**
|
|
* Set an indirect pointer to an error given a ErrorClass value and a
|
|
* printf-style human message, followed by a strerror() string if
|
|
* @os_error is not zero.
|
|
*/
|
|
void error_set_errno(Error **errp, int os_error, ErrorClass err_class,
|
|
const char *fmt, ...) GCC_FMT_ATTR(4, 5);
|
|
|
|
#ifdef _WIN32
|
|
/**
|
|
* Set an indirect pointer to an error given a ErrorClass value and a
|
|
* printf-style human message, followed by a g_win32_error_message() string if
|
|
* @win32_err is not zero.
|
|
*/
|
|
void error_set_win32(Error **errp, int win32_err, ErrorClass err_class,
|
|
const char *fmt, ...) GCC_FMT_ATTR(4, 5);
|
|
#endif
|
|
|
|
/**
|
|
* Same as error_set(), but sets a generic error
|
|
*/
|
|
#define error_setg(errp, fmt, ...) \
|
|
error_set(errp, ERROR_CLASS_GENERIC_ERROR, fmt, ## __VA_ARGS__)
|
|
#define error_setg_errno(errp, os_error, fmt, ...) \
|
|
error_set_errno(errp, os_error, ERROR_CLASS_GENERIC_ERROR, \
|
|
fmt, ## __VA_ARGS__)
|
|
#ifdef _WIN32
|
|
#define error_setg_win32(errp, win32_err, fmt, ...) \
|
|
error_set_win32(errp, win32_err, ERROR_CLASS_GENERIC_ERROR, \
|
|
fmt, ## __VA_ARGS__)
|
|
#endif
|
|
|
|
/**
|
|
* Helper for open() errors
|
|
*/
|
|
void error_setg_file_open(Error **errp, int os_errno, const char *filename);
|
|
|
|
/*
|
|
* Get the error class of an error object.
|
|
*/
|
|
ErrorClass error_get_class(const Error *err);
|
|
|
|
/**
|
|
* Returns an exact copy of the error passed as an argument.
|
|
*/
|
|
Error *error_copy(const Error *err);
|
|
|
|
/**
|
|
* Get a human readable representation of an error object.
|
|
*/
|
|
const char *error_get_pretty(Error *err);
|
|
|
|
/**
|
|
* Propagate an error to an indirect pointer to an error. This function will
|
|
* always transfer ownership of the error reference and handles the case where
|
|
* dst_err is NULL correctly. Errors after the first are discarded.
|
|
*/
|
|
void error_propagate(Error **dst_errp, Error *local_err);
|
|
|
|
/**
|
|
* Free an error object.
|
|
*/
|
|
void error_free(Error *err);
|
|
|
|
/**
|
|
* If passed to error_set and friends, abort().
|
|
*/
|
|
|
|
extern Error *error_abort;
|
|
|
|
#endif
|