error, qerror: add ErrorClass argument to error functions

The new argument is added to functions qerror_report() and error_set().
It's stored in Error and QError. qerror_report_err() is also updated to
take care of it.

The QERR_ macros are changed to contain a place holder value for the
new argument, so that the value is used on all current calls to
qerror_report() and error_set() (and also to initialize qerror_table[]).

Next commit will update the QERR_ macros with a proper ErrorClass
value.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Luiz Capitulino 2012-07-27 14:09:29 -03:00
parent 85465051e0
commit 13f59ae815
4 changed files with 90 additions and 78 deletions

View File

@ -14,6 +14,7 @@
#include "error.h"
#include "qjson.h"
#include "qdict.h"
#include "qapi-types.h"
#include "error_int.h"
#include "qerror.h"
@ -21,9 +22,10 @@ struct Error
{
QDict *obj;
char *msg;
ErrorClass err_class;
};
void error_set(Error **errp, const char *fmt, ...)
void error_set(Error **errp, ErrorClass err_class, const char *fmt, ...)
{
Error *err;
va_list ap;
@ -39,6 +41,7 @@ void error_set(Error **errp, const char *fmt, ...)
err->obj = qobject_to_qdict(qobject_from_jsonv(fmt, &ap));
va_end(ap);
err->msg = qerror_format(fmt, err->obj);
err->err_class = err_class;
*errp = err;
}
@ -49,6 +52,7 @@ Error *error_copy(const Error *err)
err_new = g_malloc0(sizeof(*err));
err_new->msg = g_strdup(err->msg);
err_new->err_class = err->err_class;
err_new->obj = err->obj;
QINCREF(err_new->obj);
@ -97,7 +101,7 @@ void error_free(Error *err)
}
}
bool error_is_type(Error *err, const char *fmt)
bool error_is_type(Error *err, ErrorClass err_class, const char *fmt)
{
const char *error_class;
char *ptr;

View File

@ -13,6 +13,7 @@
#define ERROR_H
#include "compiler.h"
#include "qapi-types.h"
#include <stdbool.h>
/**
@ -26,7 +27,7 @@ typedef struct Error Error;
* Currently, qerror.h defines these error formats. This function is not
* meant to be used outside of QEMU.
*/
void error_set(Error **err, const char *fmt, ...) GCC_FMT_ATTR(2, 3);
void error_set(Error **err, ErrorClass err_class, const char *fmt, ...) GCC_FMT_ATTR(3, 4);
/**
* Returns true if an indirect pointer to an error is pointing to a valid
@ -70,6 +71,6 @@ void error_free(Error *err);
* Determine if an error is of a speific type (based on the qerror format).
* Non-QEMU users should get the `class' field to identify the error type.
*/
bool error_is_type(Error *err, const char *fmt);
bool error_is_type(Error *err, ErrorClass err_class, const char *fmt);
#endif

View File

@ -386,13 +386,15 @@ static QDict *error_obj_from_fmt_no_fail(const char *fmt, va_list *va)
*
* Return strong reference.
*/
static QError *qerror_from_info(const char *fmt, va_list *va)
static QError *qerror_from_info(ErrorClass err_class, const char *fmt,
va_list *va)
{
QError *qerr;
qerr = qerror_new();
loc_save(&qerr->loc);
qerr->err_class = err_class;
qerr->error = error_obj_from_fmt_no_fail(fmt, va);
qerr->err_msg = qerror_format(fmt, qerr->error);
@ -518,13 +520,13 @@ static void qerror_print(QError *qerror)
QDECREF(qstring);
}
void qerror_report(const char *fmt, ...)
void qerror_report(ErrorClass eclass, const char *fmt, ...)
{
va_list va;
QError *qerror;
va_start(va, fmt);
qerror = qerror_from_info(fmt, &va);
qerror = qerror_from_info(eclass, fmt, &va);
va_end(va);
if (monitor_cur_is_qmp()) {
@ -540,6 +542,7 @@ struct Error
{
QDict *obj;
char *msg;
ErrorClass err_class;
};
void qerror_report_err(Error *err)
@ -551,6 +554,7 @@ void qerror_report_err(Error *err)
QINCREF(err->obj);
qerr->error = err->obj;
qerr->err_msg = g_strdup(err->msg);
qerr->err_class = err->err_class;
if (monitor_cur_is_qmp()) {
monitor_set_error(cur_mon, qerr);

145
qerror.h
View File

@ -16,9 +16,11 @@
#include "qstring.h"
#include "qemu-error.h"
#include "error.h"
#include "qapi-types.h"
#include <stdarg.h>
typedef struct QErrorStringTable {
ErrorClass err_class;
const char *error_fmt;
const char *desc;
} QErrorStringTable;
@ -28,10 +30,11 @@ typedef struct QError {
QDict *error;
Location loc;
char *err_msg;
ErrorClass err_class;
} QError;
QString *qerror_human(const QError *qerror);
void qerror_report(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
void qerror_report(ErrorClass err_class, const char *fmt, ...) GCC_FMT_ATTR(2, 3);
void qerror_report_err(Error *err);
void assert_no_error(Error *err);
char *qerror_format(const char *fmt, QDict *error);
@ -42,214 +45,214 @@ char *qerror_format(const char *fmt, QDict *error);
* Use scripts/check-qerror.sh to check.
*/
#define QERR_ADD_CLIENT_FAILED \
"{ 'class': 'AddClientFailed', 'data': {} }"
-1, "{ 'class': 'AddClientFailed', 'data': {} }"
#define QERR_AMBIGUOUS_PATH \
"{ 'class': 'AmbiguousPath', 'data': { 'path': %s } }"
-1, "{ 'class': 'AmbiguousPath', 'data': { 'path': %s } }"
#define QERR_BAD_BUS_FOR_DEVICE \
"{ 'class': 'BadBusForDevice', 'data': { 'device': %s, 'bad_bus_type': %s } }"
-1, "{ 'class': 'BadBusForDevice', 'data': { 'device': %s, 'bad_bus_type': %s } }"
#define QERR_BASE_NOT_FOUND \
"{ 'class': 'BaseNotFound', 'data': { 'base': %s } }"
-1, "{ 'class': 'BaseNotFound', 'data': { 'base': %s } }"
#define QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED \
"{ 'class': 'BlockFormatFeatureNotSupported', 'data': { 'format': %s, 'name': %s, 'feature': %s } }"
-1, "{ 'class': 'BlockFormatFeatureNotSupported', 'data': { 'format': %s, 'name': %s, 'feature': %s } }"
#define QERR_BUFFER_OVERRUN \
"{ 'class': 'BufferOverrun', 'data': {} }"
-1, "{ 'class': 'BufferOverrun', 'data': {} }"
#define QERR_BUS_NO_HOTPLUG \
"{ 'class': 'BusNoHotplug', 'data': { 'bus': %s } }"
-1, "{ 'class': 'BusNoHotplug', 'data': { 'bus': %s } }"
#define QERR_BUS_NOT_FOUND \
"{ 'class': 'BusNotFound', 'data': { 'bus': %s } }"
-1, "{ 'class': 'BusNotFound', 'data': { 'bus': %s } }"
#define QERR_COMMAND_DISABLED \
"{ 'class': 'CommandDisabled', 'data': { 'name': %s } }"
-1, "{ 'class': 'CommandDisabled', 'data': { 'name': %s } }"
#define QERR_COMMAND_NOT_FOUND \
"{ 'class': 'CommandNotFound', 'data': { 'name': %s } }"
-1, "{ 'class': 'CommandNotFound', 'data': { 'name': %s } }"
#define QERR_DEVICE_ENCRYPTED \
"{ 'class': 'DeviceEncrypted', 'data': { 'device': %s, 'filename': %s } }"
-1, "{ 'class': 'DeviceEncrypted', 'data': { 'device': %s, 'filename': %s } }"
#define QERR_DEVICE_FEATURE_BLOCKS_MIGRATION \
"{ 'class': 'DeviceFeatureBlocksMigration', 'data': { 'device': %s, 'feature': %s } }"
-1, "{ 'class': 'DeviceFeatureBlocksMigration', 'data': { 'device': %s, 'feature': %s } }"
#define QERR_DEVICE_HAS_NO_MEDIUM \
"{ 'class': 'DeviceHasNoMedium', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceHasNoMedium', 'data': { 'device': %s } }"
#define QERR_DEVICE_INIT_FAILED \
"{ 'class': 'DeviceInitFailed', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceInitFailed', 'data': { 'device': %s } }"
#define QERR_DEVICE_IN_USE \
"{ 'class': 'DeviceInUse', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceInUse', 'data': { 'device': %s } }"
#define QERR_DEVICE_IS_READ_ONLY \
"{ 'class': 'DeviceIsReadOnly', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceIsReadOnly', 'data': { 'device': %s } }"
#define QERR_DEVICE_LOCKED \
"{ 'class': 'DeviceLocked', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceLocked', 'data': { 'device': %s } }"
#define QERR_DEVICE_MULTIPLE_BUSSES \
"{ 'class': 'DeviceMultipleBusses', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceMultipleBusses', 'data': { 'device': %s } }"
#define QERR_DEVICE_NO_BUS \
"{ 'class': 'DeviceNoBus', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceNoBus', 'data': { 'device': %s } }"
#define QERR_DEVICE_NO_HOTPLUG \
"{ 'class': 'DeviceNoHotplug', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceNoHotplug', 'data': { 'device': %s } }"
#define QERR_DEVICE_NOT_ACTIVE \
"{ 'class': 'DeviceNotActive', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceNotActive', 'data': { 'device': %s } }"
#define QERR_DEVICE_NOT_ENCRYPTED \
"{ 'class': 'DeviceNotEncrypted', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceNotEncrypted', 'data': { 'device': %s } }"
#define QERR_DEVICE_NOT_FOUND \
"{ 'class': 'DeviceNotFound', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceNotFound', 'data': { 'device': %s } }"
#define QERR_DEVICE_NOT_REMOVABLE \
"{ 'class': 'DeviceNotRemovable', 'data': { 'device': %s } }"
-1, "{ 'class': 'DeviceNotRemovable', 'data': { 'device': %s } }"
#define QERR_DUPLICATE_ID \
"{ 'class': 'DuplicateId', 'data': { 'id': %s, 'object': %s } }"
-1, "{ 'class': 'DuplicateId', 'data': { 'id': %s, 'object': %s } }"
#define QERR_FD_NOT_FOUND \
"{ 'class': 'FdNotFound', 'data': { 'name': %s } }"
-1, "{ 'class': 'FdNotFound', 'data': { 'name': %s } }"
#define QERR_FD_NOT_SUPPLIED \
"{ 'class': 'FdNotSupplied', 'data': {} }"
-1, "{ 'class': 'FdNotSupplied', 'data': {} }"
#define QERR_FEATURE_DISABLED \
"{ 'class': 'FeatureDisabled', 'data': { 'name': %s } }"
-1, "{ 'class': 'FeatureDisabled', 'data': { 'name': %s } }"
#define QERR_INVALID_BLOCK_FORMAT \
"{ 'class': 'InvalidBlockFormat', 'data': { 'name': %s } }"
-1, "{ 'class': 'InvalidBlockFormat', 'data': { 'name': %s } }"
#define QERR_INVALID_OPTION_GROUP \
"{ 'class': 'InvalidOptionGroup', 'data': { 'group': %s } }"
-1, "{ 'class': 'InvalidOptionGroup', 'data': { 'group': %s } }"
#define QERR_INVALID_PARAMETER \
"{ 'class': 'InvalidParameter', 'data': { 'name': %s } }"
-1, "{ 'class': 'InvalidParameter', 'data': { 'name': %s } }"
#define QERR_INVALID_PARAMETER_COMBINATION \
"{ 'class': 'InvalidParameterCombination', 'data': {} }"
-1, "{ 'class': 'InvalidParameterCombination', 'data': {} }"
#define QERR_INVALID_PARAMETER_TYPE \
"{ 'class': 'InvalidParameterType', 'data': { 'name': %s,'expected': %s } }"
-1, "{ 'class': 'InvalidParameterType', 'data': { 'name': %s,'expected': %s } }"
#define QERR_INVALID_PARAMETER_VALUE \
"{ 'class': 'InvalidParameterValue', 'data': { 'name': %s, 'expected': %s } }"
-1, "{ 'class': 'InvalidParameterValue', 'data': { 'name': %s, 'expected': %s } }"
#define QERR_INVALID_PASSWORD \
"{ 'class': 'InvalidPassword', 'data': {} }"
-1, "{ 'class': 'InvalidPassword', 'data': {} }"
#define QERR_IO_ERROR \
"{ 'class': 'IOError', 'data': {} }"
-1, "{ 'class': 'IOError', 'data': {} }"
#define QERR_JSON_PARSE_ERROR \
"{ 'class': 'JSONParseError', 'data': { 'message': %s } }"
-1, "{ 'class': 'JSONParseError', 'data': { 'message': %s } }"
#define QERR_JSON_PARSING \
"{ 'class': 'JSONParsing', 'data': {} }"
-1, "{ 'class': 'JSONParsing', 'data': {} }"
#define QERR_KVM_MISSING_CAP \
"{ 'class': 'KVMMissingCap', 'data': { 'capability': %s, 'feature': %s } }"
-1, "{ 'class': 'KVMMissingCap', 'data': { 'capability': %s, 'feature': %s } }"
#define QERR_MIGRATION_ACTIVE \
"{ 'class': 'MigrationActive', 'data': {} }"
-1, "{ 'class': 'MigrationActive', 'data': {} }"
#define QERR_MIGRATION_NOT_SUPPORTED \
"{ 'class': 'MigrationNotSupported', 'data': {'device': %s} }"
-1, "{ 'class': 'MigrationNotSupported', 'data': {'device': %s} }"
#define QERR_MIGRATION_EXPECTED \
"{ 'class': 'MigrationExpected', 'data': {} }"
-1, "{ 'class': 'MigrationExpected', 'data': {} }"
#define QERR_MISSING_PARAMETER \
"{ 'class': 'MissingParameter', 'data': { 'name': %s } }"
-1, "{ 'class': 'MissingParameter', 'data': { 'name': %s } }"
#define QERR_NO_BUS_FOR_DEVICE \
"{ 'class': 'NoBusForDevice', 'data': { 'device': %s, 'bus': %s } }"
-1, "{ 'class': 'NoBusForDevice', 'data': { 'device': %s, 'bus': %s } }"
#define QERR_NOT_SUPPORTED \
"{ 'class': 'NotSupported', 'data': {} }"
-1, "{ 'class': 'NotSupported', 'data': {} }"
#define QERR_OPEN_FILE_FAILED \
"{ 'class': 'OpenFileFailed', 'data': { 'filename': %s } }"
-1, "{ 'class': 'OpenFileFailed', 'data': { 'filename': %s } }"
#define QERR_PERMISSION_DENIED \
"{ 'class': 'PermissionDenied', 'data': {} }"
-1, "{ 'class': 'PermissionDenied', 'data': {} }"
#define QERR_PROPERTY_NOT_FOUND \
"{ 'class': 'PropertyNotFound', 'data': { 'device': %s, 'property': %s } }"
-1, "{ 'class': 'PropertyNotFound', 'data': { 'device': %s, 'property': %s } }"
#define QERR_PROPERTY_VALUE_BAD \
"{ 'class': 'PropertyValueBad', 'data': { 'device': %s, 'property': %s, 'value': %s } }"
-1, "{ 'class': 'PropertyValueBad', 'data': { 'device': %s, 'property': %s, 'value': %s } }"
#define QERR_PROPERTY_VALUE_IN_USE \
"{ 'class': 'PropertyValueInUse', 'data': { 'device': %s, 'property': %s, 'value': %s } }"
-1, "{ 'class': 'PropertyValueInUse', 'data': { 'device': %s, 'property': %s, 'value': %s } }"
#define QERR_PROPERTY_VALUE_NOT_FOUND \
"{ 'class': 'PropertyValueNotFound', 'data': { 'device': %s, 'property': %s, 'value': %s } }"
-1, "{ 'class': 'PropertyValueNotFound', 'data': { 'device': %s, 'property': %s, 'value': %s } }"
#define QERR_PROPERTY_VALUE_NOT_POWER_OF_2 \
"{ 'class': 'PropertyValueNotPowerOf2', 'data': { " \
-1, "{ 'class': 'PropertyValueNotPowerOf2', 'data': { " \
"'device': %s, 'property': %s, 'value': %"PRId64" } }"
#define QERR_PROPERTY_VALUE_OUT_OF_RANGE \
"{ 'class': 'PropertyValueOutOfRange', 'data': { 'device': %s, 'property': %s, 'value': %"PRId64", 'min': %"PRId64", 'max': %"PRId64" } }"
-1, "{ 'class': 'PropertyValueOutOfRange', 'data': { 'device': %s, 'property': %s, 'value': %"PRId64", 'min': %"PRId64", 'max': %"PRId64" } }"
#define QERR_QGA_COMMAND_FAILED \
"{ 'class': 'QgaCommandFailed', 'data': { 'message': %s } }"
-1, "{ 'class': 'QgaCommandFailed', 'data': { 'message': %s } }"
#define QERR_QGA_LOGGING_FAILED \
"{ 'class': 'QgaLoggingFailed', 'data': {} }"
-1, "{ 'class': 'QgaLoggingFailed', 'data': {} }"
#define QERR_QMP_BAD_INPUT_OBJECT \
"{ 'class': 'QMPBadInputObject', 'data': { 'expected': %s } }"
-1, "{ 'class': 'QMPBadInputObject', 'data': { 'expected': %s } }"
#define QERR_QMP_BAD_INPUT_OBJECT_MEMBER \
"{ 'class': 'QMPBadInputObjectMember', 'data': { 'member': %s, 'expected': %s } }"
-1, "{ 'class': 'QMPBadInputObjectMember', 'data': { 'member': %s, 'expected': %s } }"
#define QERR_QMP_EXTRA_MEMBER \
"{ 'class': 'QMPExtraInputObjectMember', 'data': { 'member': %s } }"
-1, "{ 'class': 'QMPExtraInputObjectMember', 'data': { 'member': %s } }"
#define QERR_RESET_REQUIRED \
"{ 'class': 'ResetRequired', 'data': {} }"
-1, "{ 'class': 'ResetRequired', 'data': {} }"
#define QERR_SET_PASSWD_FAILED \
"{ 'class': 'SetPasswdFailed', 'data': {} }"
-1, "{ 'class': 'SetPasswdFailed', 'data': {} }"
#define QERR_TOO_MANY_FILES \
"{ 'class': 'TooManyFiles', 'data': {} }"
-1, "{ 'class': 'TooManyFiles', 'data': {} }"
#define QERR_UNDEFINED_ERROR \
"{ 'class': 'UndefinedError', 'data': {} }"
-1, "{ 'class': 'UndefinedError', 'data': {} }"
#define QERR_UNKNOWN_BLOCK_FORMAT_FEATURE \
"{ 'class': 'UnknownBlockFormatFeature', 'data': { 'device': %s, 'format': %s, 'feature': %s } }"
-1, "{ 'class': 'UnknownBlockFormatFeature', 'data': { 'device': %s, 'format': %s, 'feature': %s } }"
#define QERR_UNSUPPORTED \
"{ 'class': 'Unsupported', 'data': {} }"
-1, "{ 'class': 'Unsupported', 'data': {} }"
#define QERR_VIRTFS_FEATURE_BLOCKS_MIGRATION \
"{ 'class': 'VirtFSFeatureBlocksMigration', 'data': { 'path': %s, 'tag': %s } }"
-1, "{ 'class': 'VirtFSFeatureBlocksMigration', 'data': { 'path': %s, 'tag': %s } }"
#define QERR_VNC_SERVER_FAILED \
"{ 'class': 'VNCServerFailed', 'data': { 'target': %s } }"
-1, "{ 'class': 'VNCServerFailed', 'data': { 'target': %s } }"
#define QERR_SOCKET_CONNECT_FAILED \
"{ 'class': 'SockConnectFailed', 'data': {} }"
-1, "{ 'class': 'SockConnectFailed', 'data': {} }"
#define QERR_SOCKET_LISTEN_FAILED \
"{ 'class': 'SockListenFailed', 'data': {} }"
-1, "{ 'class': 'SockListenFailed', 'data': {} }"
#define QERR_SOCKET_BIND_FAILED \
"{ 'class': 'SockBindFailed', 'data': {} }"
-1, "{ 'class': 'SockBindFailed', 'data': {} }"
#define QERR_SOCKET_CREATE_FAILED \
"{ 'class': 'SockCreateFailed', 'data': {} }"
-1, "{ 'class': 'SockCreateFailed', 'data': {} }"
#endif /* QERROR_H */