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Re: [Qemu-devel] [PATCH 26/27] error, qerror: pass desc string to error


From: Luiz Capitulino
Subject: Re: [Qemu-devel] [PATCH 26/27] error, qerror: pass desc string to error calls
Date: Wed, 1 Aug 2012 10:31:01 -0300

On Wed, 01 Aug 2012 19:37:29 +0800
Amos Kong <address@hidden> wrote:

> On 28/07/12 05:32, Luiz Capitulino wrote:
> > FIXME: broke error_is_type() and qemu-ga.
> >
> > Signed-off-by: Luiz Capitulino<address@hidden>
> > ---
> >   error.c  |   5 ++-
> >   qerror.c |  44 ++------------------
> >   qerror.h | 143 
> > +++++++++++++++++++++++++++++++--------------------------------
> >   3 files changed, 77 insertions(+), 115 deletions(-)
> >
> > diff --git a/error.c b/error.c
> > index 1c37092..dd20ab8 100644
> > --- a/error.c
> > +++ b/error.c
> > @@ -29,6 +29,7 @@ void error_set(Error **errp, ErrorClass err_class, const 
> > char *fmt, ...)
> >   {
> >       Error *err;
> >       va_list ap;
> > +    char msg[2048];
> >
> >       if (errp == NULL) {
> >           return;
> > @@ -37,9 +38,9 @@ void error_set(Error **errp, ErrorClass err_class, const 
> > char *fmt, ...)
> >       err = g_malloc0(sizeof(*err));
> >
> >       va_start(ap, fmt);
> > -    err->obj = qobject_to_qdict(qobject_from_jsonv(fmt,&ap));
> 
> err->obj is not set in latest error_set(), it would be used in 
> error_is_type()

Yes, I'm aware about this and wrote to the changelog above so that I don't
forget about it.

> 
>     >> error_class = qdict_get_str(err->obj, "class");
> 
> 
> 
> > +    vsnprintf(msg, sizeof(msg), fmt, ap);
> >       va_end(ap);
> > -    err->msg = qerror_format(fmt, err->obj);
> > +    err->msg = g_strdup(msg);
> >       err->err_class = err_class;
> >
> >       *errp = err;
> > diff --git a/qerror.c b/qerror.c
> > index 85e65b8..f443261 100644
> > --- a/qerror.c
> > +++ b/qerror.c
> > @@ -346,45 +346,6 @@ static QError *qerror_new(void)
> >       return qerr;
> >   }
> >
> > -static QDict *error_obj_from_fmt_no_fail(const char *fmt, va_list *va)
> > -{
> > -    QObject *obj;
> > -    QDict *ret;
> > -
> > -    obj = qobject_from_jsonv(fmt, va);
> > -    if (!obj) {
> > -        fprintf(stderr, "invalid json in error dict '%s'\n", fmt);
> > -        abort();
> > -    }
> > -    if (qobject_type(obj) != QTYPE_QDICT) {
> > -        fprintf(stderr, "error is not a dict '%s'\n", fmt);
> > -        abort();
> > -    }
> > -
> > -    ret = qobject_to_qdict(obj);
> > -    obj = qdict_get(ret, "class");
> > -    if (!obj) {
> > -        fprintf(stderr, "missing 'class' key in '%s'\n", fmt);
> > -        abort();
> > -    }
> > -    if (qobject_type(obj) != QTYPE_QSTRING) {
> > -        fprintf(stderr, "'class' key value should be a string in '%s'\n", 
> > fmt);
> > -        abort();
> > -    }
> > -
> > -    obj = qdict_get(ret, "data");
> > -    if (!obj) {
> > -        fprintf(stderr, "missing 'data' key in '%s'\n", fmt);
> > -        abort();
> > -    }
> > -    if (qobject_type(obj) != QTYPE_QDICT) {
> > -        fprintf(stderr, "'data' key value should be a dict in '%s'\n", 
> > fmt);
> > -        abort();
> > -    }
> > -
> > -    return ret;
> > -}
> > -
> >   /**
> >    * qerror_from_info(): Create a new QError from error information
> >    *
> > @@ -394,13 +355,14 @@ static QError *qerror_from_info(ErrorClass err_class, 
> > const char *fmt,
> >                                   va_list *va)
> >   {
> >       QError *qerr;
> > +    char msg[2048];
> >
> >       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);
> > +    vsnprintf(msg, sizeof(msg), fmt, *va);
> > +    qerr->err_msg = g_strdup(msg);
> >
> >       return qerr;
> >   }
> > diff --git a/qerror.h b/qerror.h
> > index 14b9bfc..92a4b83 100644
> > --- a/qerror.h
> > +++ b/qerror.h
> > @@ -45,217 +45,216 @@ char *qerror_format(const char *fmt, QDict *error);
> >    * Use scripts/check-qerror.sh to check.
> >    */
> >   #define QERR_ADD_CLIENT_FAILED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'AddClientFailed', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Could not add client"
> >
> >   #define QERR_AMBIGUOUS_PATH \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'AmbiguousPath', 'data': { 
> > 'path': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Path '%s' does not uniquely identify an 
> > object"
> >
> >   #define QERR_BAD_BUS_FOR_DEVICE \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'BadBusForDevice', 'data': { 
> > 'device': %s, 'bad_bus_type': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' can't go on a %s bus"
> >
> >   #define QERR_BASE_NOT_FOUND \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'BaseNotFound', 'data': { 
> > 'base': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Base '%s' not found"
> >
> >   #define QERR_BLOCK_FORMAT_FEATURE_NOT_SUPPORTED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 
> > 'BlockFormatFeatureNotSupported', 'data': { 'format': %s, 'name': %s, 
> > 'feature': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Block format '%s' used by device '%s' does 
> > not support feature '%s'"
> >
> >   #define QERR_BUFFER_OVERRUN \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'BufferOverrun', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "An internal buffer overran"
> >
> >   #define QERR_BUS_NO_HOTPLUG \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'BusNoHotplug', 'data': { 
> > 'bus': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Bus '%s' does not support hotplugging"
> >
> >   #define QERR_BUS_NOT_FOUND \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'BusNotFound', 'data': { 'bus': 
> > %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Bus '%s' not found"
> >
> >   #define QERR_COMMAND_DISABLED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'CommandDisabled', 'data': { 
> > 'name': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "The command %s has been disabled for this 
> > instance"
> >
> >   #define QERR_COMMAND_NOT_FOUND \
> > -    ERROR_CLASS_COMMAND_NOT_FOUND, "{ 'class': 'CommandNotFound', 'data': 
> > { 'name': %s } }"
> > +    ERROR_CLASS_COMMAND_NOT_FOUND, "The command %s has not been found"
> >
> >   #define QERR_DEVICE_ENCRYPTED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceEncrypted', 'data': { 
> > 'device': %s, 'filename': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' is encrypted (filename=%s)"
> >
> >   #define QERR_DEVICE_FEATURE_BLOCKS_MIGRATION \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceFeatureBlocksMigration', 
> > 'data': { 'device': %s, 'feature': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Migration is disabled when using feature 
> > '%s' in device '%s'"
> >
> >   #define QERR_DEVICE_HAS_NO_MEDIUM \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceHasNoMedium', 'data': { 
> > 'device': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' has no medium"
> >
> >   #define QERR_DEVICE_INIT_FAILED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceInitFailed', 'data': { 
> > 'device': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' could not be initialized"
> >
> >   #define QERR_DEVICE_IN_USE \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceInUse', 'data': { 
> > 'device': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' is in use"
> >
> >   #define QERR_DEVICE_IS_READ_ONLY \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceIsReadOnly', 'data': { 
> > 'device': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' is read only"
> >
> >   #define QERR_DEVICE_LOCKED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceLocked', 'data': { 
> > 'device': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' is locked"
> >
> >   #define QERR_DEVICE_MULTIPLE_BUSSES \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceMultipleBusses', 'data': 
> > { 'device': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' has multiple child busses"
> >
> >   #define QERR_DEVICE_NO_BUS \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceNoBus', 'data': { 
> > 'device': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' has no child bus"
> >
> >   #define QERR_DEVICE_NO_HOTPLUG \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceNoHotplug', 'data': { 
> > 'device': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' does not support hotplugging"
> >
> >   #define QERR_DEVICE_NOT_ACTIVE \
> > -    ERROR_CLASS_DEVICE_NOT_ACTIVE, "{ 'class': 'DeviceNotActive', 'data': 
> > { 'device': %s } }"
> > +    ERROR_CLASS_DEVICE_NOT_ACTIVE, "Device '%s' has not been activated"
> >
> >   #define QERR_DEVICE_NOT_ENCRYPTED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceNotEncrypted', 'data': { 
> > 'device': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' is not encrypted"
> >
> >   #define QERR_DEVICE_NOT_FOUND \
> > -    ERROR_CLASS_DEVICE_NOT_FOUND, "{ 'class': 'DeviceNotFound', 'data': { 
> > 'device': %s } }"
> > +    ERROR_CLASS_DEVICE_NOT_FOUND, "Device '%s' not found"
> >
> >   #define QERR_DEVICE_NOT_REMOVABLE \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DeviceNotRemovable', 'data': { 
> > 'device': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Device '%s' is not removable"
> >
> >   #define QERR_DUPLICATE_ID \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'DuplicateId', 'data': { 'id': 
> > %s, 'object': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Duplicate ID '%s' for %s"
> >
> >   #define QERR_FD_NOT_FOUND \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'FdNotFound', 'data': { 'name': 
> > %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "File descriptor named '%s' not found"
> >
> >   #define QERR_FD_NOT_SUPPLIED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'FdNotSupplied', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "No file descriptor supplied via SCM_RIGHTS"
> >
> >   #define QERR_FEATURE_DISABLED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'FeatureDisabled', 'data': { 
> > 'name': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "The feature '%s' is not enabled"
> >
> >   #define QERR_INVALID_BLOCK_FORMAT \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'InvalidBlockFormat', 'data': { 
> > 'name': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Invalid block format '%s'"
> >
> >   #define QERR_INVALID_OPTION_GROUP \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'InvalidOptionGroup', 'data': { 
> > 'group': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "There is no option group '%s'"
> >
> >   #define QERR_INVALID_PARAMETER \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'InvalidParameter', 'data': { 
> > 'name': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Invalid parameter '%s'"
> >
> >   #define QERR_INVALID_PARAMETER_COMBINATION \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'InvalidParameterCombination', 
> > 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Invalid parameter combination"
> >
> >   #define QERR_INVALID_PARAMETER_TYPE \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'InvalidParameterType', 'data': 
> > { 'name': %s,'expected': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Invalid parameter type for '%s', expected: 
> > %s"
> >
> >   #define QERR_INVALID_PARAMETER_VALUE \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'InvalidParameterValue', 
> > 'data': { 'name': %s, 'expected': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Parameter '%s' expects %s"
> >
> >   #define QERR_INVALID_PASSWORD \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'InvalidPassword', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Password incorrect"
> >
> >   #define QERR_IO_ERROR \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'IOError', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "An IO error has occurred"
> >
> >   #define QERR_JSON_PARSE_ERROR \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'JSONParseError', 'data': { 
> > 'message': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "JSON parse error, %s"
> >
> >   #define QERR_JSON_PARSING \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'JSONParsing', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Invalid JSON syntax"
> >
> >   #define QERR_KVM_MISSING_CAP \
> > -    ERROR_CLASS_K_V_M_MISSING_CAP, "{ 'class': 'KVMMissingCap', 'data': { 
> > 'capability': %s, 'feature': %s } }"
> > +    ERROR_CLASS_K_V_M_MISSING_CAP, "Using KVM without %s, %s unavailable"
> >
> >   #define QERR_MIGRATION_ACTIVE \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'MigrationActive', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "There's a migration process in progress"
> >
> >   #define QERR_MIGRATION_NOT_SUPPORTED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'MigrationNotSupported', 
> > 'data': {'device': %s} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "State blocked by non-migratable device 
> > '%s'"
> >
> >   #define QERR_MIGRATION_EXPECTED \
> > -    ERROR_CLASS_MIGRATION_EXPECTED, "{ 'class': 'MigrationExpected', 
> > 'data': {} }"
> > +    ERROR_CLASS_MIGRATION_EXPECTED, "An incoming migration is expected 
> > before this command can be executed"
> >
> >   #define QERR_MISSING_PARAMETER \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'MissingParameter', 'data': { 
> > 'name': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Parameter '%s' is missing"
> >
> >   #define QERR_NO_BUS_FOR_DEVICE \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'NoBusForDevice', 'data': { 
> > 'device': %s, 'bus': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "No '%s' bus found for device '%s'"
> >
> >   #define QERR_NOT_SUPPORTED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'NotSupported', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Not supported"
> >
> >   #define QERR_OPEN_FILE_FAILED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'OpenFileFailed', 'data': { 
> > 'filename': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Could not open '%s'"
> >
> >   #define QERR_PERMISSION_DENIED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'PermissionDenied', 'data': {} 
> > }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Insufficient permission to perform this 
> > operation"
> >
> >   #define QERR_PROPERTY_NOT_FOUND \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'PropertyNotFound', 'data': { 
> > 'device': %s, 'property': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Property '%s.%s' not found"
> >
> >   #define QERR_PROPERTY_VALUE_BAD \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'PropertyValueBad', 'data': { 
> > 'device': %s, 'property': %s, 'value': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Property '%s.%s' doesn't take value '%s'"
> >
> >   #define QERR_PROPERTY_VALUE_IN_USE \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'PropertyValueInUse', 'data': { 
> > 'device': %s, 'property': %s, 'value': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Property '%s.%s' can't take value '%s', 
> > it's in use"
> >
> >   #define QERR_PROPERTY_VALUE_NOT_FOUND \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'PropertyValueNotFound', 
> > 'data': { 'device': %s, 'property': %s, 'value': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Property '%s.%s' can't find value '%s'"
> >
> >   #define QERR_PROPERTY_VALUE_NOT_POWER_OF_2 \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'PropertyValueNotPowerOf2', 
> > 'data': { " \
> > -    "'device': %s, 'property': %s, 'value': %"PRId64" } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Property %s.%s doesn't take value '%" 
> > PRId64 "', it's not a power of 2"
> >
> >   #define QERR_PROPERTY_VALUE_OUT_OF_RANGE \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'PropertyValueOutOfRange', 
> > 'data': { 'device': %s, 'property': %s, 'value': %"PRId64", 'min': 
> > %"PRId64", 'max': %"PRId64" } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Property %s.%s doesn't take value %" 
> > PRId64 " (minimum: %" PRId64 ", maximum: %" PRId64 ")"
> >
> >   #define QERR_QGA_COMMAND_FAILED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'QgaCommandFailed', 'data': { 
> > 'message': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Guest agent command failed, error was '%s'"
> >
> >   #define QERR_QGA_LOGGING_FAILED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'QgaLoggingFailed', 'data': {} 
> > }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Guest agent failed to log non-optional log 
> > statement"
> >
> >   #define QERR_QMP_BAD_INPUT_OBJECT \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'QMPBadInputObject', 'data': { 
> > 'expected': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Expected '%s' in QMP input"
> >
> >   #define QERR_QMP_BAD_INPUT_OBJECT_MEMBER \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'QMPBadInputObjectMember', 
> > 'data': { 'member': %s, 'expected': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "QMP input object member '%s' expects '%s'"
> >
> >   #define QERR_QMP_EXTRA_MEMBER \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'QMPExtraInputObjectMember', 
> > 'data': { 'member': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "QMP input object member '%s' is unexpected"
> >
> >   #define QERR_RESET_REQUIRED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'ResetRequired', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Resetting the Virtual Machine is required"
> >
> >   #define QERR_SET_PASSWD_FAILED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'SetPasswdFailed', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Could not set password"
> >
> >   #define QERR_TOO_MANY_FILES \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'TooManyFiles', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Too many open files"
> >
> >   #define QERR_UNDEFINED_ERROR \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'UndefinedError', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "An undefined error has occurred"
> >
> >   #define QERR_UNKNOWN_BLOCK_FORMAT_FEATURE \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'UnknownBlockFormatFeature', 
> > 'data': { 'device': %s, 'format': %s, 'feature': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "'%s' uses a %s feature which is not 
> > supported by this qemu version: %s"
> >
> >   #define QERR_UNSUPPORTED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'Unsupported', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "this feature or command is not currently 
> > supported"
> >
> >   #define QERR_VIRTFS_FEATURE_BLOCKS_MIGRATION \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'VirtFSFeatureBlocksMigration', 
> > 'data': { 'path': %s, 'tag': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Migration is disabled when VirtFS export 
> > path '%s' is mounted in the guest using mount_tag '%s'"
> >
> >   #define QERR_VNC_SERVER_FAILED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'VNCServerFailed', 'data': { 
> > 'target': %s } }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Could not start VNC server on %s"
> >
> >   #define QERR_SOCKET_CONNECT_IN_PROGRESS \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'SockConnectInprogress', 
> > 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Connection can not be completed 
> > immediately"
> >
> >   #define QERR_SOCKET_CONNECT_FAILED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'SockConnectFailed', 'data': {} 
> > }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Failed to connect to socket"
> >
> >   #define QERR_SOCKET_LISTEN_FAILED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'SockListenFailed', 'data': {} 
> > }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Failed to set socket to listening mode"
> >
> >   #define QERR_SOCKET_BIND_FAILED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'SockBindFailed', 'data': {} }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Failed to bind socket"
> >
> >   #define QERR_SOCKET_CREATE_FAILED \
> > -    ERROR_CLASS_GENERIC_ERROR, "{ 'class': 'SockCreateFailed', 'data': {} 
> > }"
> > +    ERROR_CLASS_GENERIC_ERROR, "Failed to create socket"
> >
> >   #endif /* QERROR_H */
> 




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