DBusGError

## DBusGError DBusGError — DBus GError |

## Stability Level

Stable, unless otherwise indicated

## Functions

gboolean | dbus_g_error_has_name ()
const char * | dbus_g_error_get_name ()
void | dbus_g_error_domain_register ()

## Types and Values

enum | DBusGError
#define | DBUS_GERROR

## Includes

    #include <dbus/dbus-glib.h>

## Description

DBusGError is the GError used by DBus.

## Functions

### dbus_g_error_has_name ()

    gboolean
    dbus_g_error_has_name (GError *error,
                           const char *name);

Determine whether D-BUS error name for a remote exception matches the given name. This function is intended to be invoked on a GError returned from an invocation of a remote method, e.g. via `dbus_g_proxy_end_call()`. It will silently return `FALSE` for errors which are not remote D-BUS exceptions (i.e. with a domain other than `DBUS_GERROR` or a code other than `DBUS_GERROR_REMOTE_EXCEPTION`).

#### Parameters

error | the GError given from the remote method |
name | the D-BUS error name |

#### Returns

`TRUE` if and only if the remote error has the given name

### dbus_g_error_get_name ()

    const char *
    dbus_g_error_get_name (GError *error);

This function may only be invoked on a GError returned from an invocation of a remote method, e.g. via `dbus_g_proxy_end_call()`. Moreover, you must ensure that the error's domain is `DBUS_GERROR`, and the code is `DBUS_GERROR_REMOTE_EXCEPTION`.

#### Parameters

error | the GError given from the remote method |

#### Returns

the D-BUS name for a remote exception.

### dbus_g_error_domain_register ()

    void
    dbus_g_error_domain_register (GQuark domain,
                                  const char *default_iface,
                                  GType code_enum);

Register a GError domain and set of codes with D-Bus. When an object raises a GError in the domain `domain` from one of its D-Bus methods, the D-Bus error name used will be `default_iface` , followed by a dot, followed by the GEnumValue.value_nick corresponding to the GError.code. For D-Bus, it's conventional to use an error name (value_nick) that is in CamelCase.

(For instance, if a D-Bus method `com.example.MyObject.GetThings` can raise a GError with domain `MY_ERROR` and code

`MY_ERROR_NOT_HAPPY`, you could call `dbus_g_error_domain_register (MY_ERROR, "com.example.MyError", MY_TYPE_ERROR)`, and set up the value_nick for `MY_ERROR_NOT_HAPPY` to be `NotHappy`,

resulting in the D-Bus error string

`com.example.MyError.NotHappy`.)

If `default_iface` is `NULL`, the D-Bus interface of the method that failed will be used.

(For instance, if the above example had called

`dbus_g_error_domain_register (MY_ERROR, NULL, MY_TYPE_ERROR)`

instead, then the D-Bus error string would be

`com.example.MyObject.NotHappy`.)

#### Parameters

domain | the GError domain |
default_iface | the prefix used for error values, or `NULL` |
code_enum | a GType for a GEnum of the error codes |

## Types and Values

### enum DBusGError

A GError enumeration for the domain `DBUS_GERROR`. The values' meanings can be found by looking at the comments for the corresponding constants in dbus-protocol.h.

#### Members

DBUS_GERROR_FAILED |  |
DBUS_GERROR_NO_MEMORY |  |
DBUS_GERROR_SERVICE_UNKNOWN |  |
DBUS_GERROR_NAME_HAS_NO_OWNER |  |
DBUS_GERROR_NO_REPLY |  |
DBUS_GERROR_IO_ERROR |  |
DBUS_GERROR_BAD_ADDRESS |  |
DBUS_GERROR_NOT_SUPPORTED |  |
DBUS_GERROR_LIMITS_EXCEEDED |  |
DBUS_GERROR_ACCESS_DENIED |  |
DBUS_GERROR_AUTH_FAILED |  |
DBUS_GERROR_NO_SERVER |  |
DBUS_GERROR_TIMEOUT |  |
DBUS_GERROR_NO_NETWORK |  |
DBUS_GERROR_ADDRESS_IN_USE |  |
DBUS_GERROR_DISCONNECTED |  |
DBUS_GERROR_INVALID_ARGS |  |
DBUS_GERROR_FILE_NOT_FOUND |  |
DBUS_GERROR_FILE_EXISTS |  |
DBUS_GERROR_UNKNOWN_METHOD |  |
DBUS_GERROR_TIMED_OUT |  |
DBUS_GERROR_MATCH_RULE_NOT_FOUND |  |
DBUS_GERROR_MATCH_RULE_INVALID |  |
DBUS_GERROR_SPAWN_EXEC_FAILED |  |
DBUS_GERROR_SPAWN_FORK_FAILED |  |
DBUS_GERROR_SPAWN_CHILD_EXITED |  |
DBUS_GERROR_SPAWN_CHILD_SIGNALED |  |
DBUS_GERROR_SPAWN_FAILED |  |
DBUS_GERROR_UNIX_PROCESS_ID_UNKNOWN |  |
DBUS_GERROR_INVALID_SIGNATURE |  |
DBUS_GERROR_INVALID_FILE_CONTENT |  |
DBUS_GERROR_SELINUX_SECURITY_CONTEXT_UNKNOWN |  |
DBUS_GERROR_REMOTE_EXCEPTION |  |

### DBUS_GERROR

    #define DBUS_GERROR dbus_g_error_quark ()

Expands to a function call returning the error domain quark for DBusGError, for use with GError.

## See Also

GError