Method
GioNetworkMonitorcan_reach
since: 2.32
Declaration
gboolean
g_network_monitor_can_reach (
GNetworkMonitor* monitor,
GSocketConnectable* connectable,
GCancellable* cancellable,
GError** error
)
Description
Attempts to determine whether or not the host pointed to by
connectable can be reached, without actually trying to connect to it.
This may return TRUE even when GNetworkMonitor:network-available
is FALSE, if, for example, monitor can determine that
connectable refers to a host on a local network.
If monitor believes that an attempt to connect to connectable
will succeed, it will return TRUE. Otherwise, it will return
FALSE and set error to an appropriate error (such as
G_IO_ERROR_HOST_UNREACHABLE).
Note that although this does not attempt to connect to
connectable, it may still block for a brief period of time (eg,
trying to do multicast DNS on the local network), so if you do not
want to block, you should use g_network_monitor_can_reach_async().
Available since: 2.32
Parameters
connectable-
Type:
GSocketConnectableA
GSocketConnectable.The data is owned by the caller of the method. cancellable-
Type:
GCancellableA
GCancellable, orNULL.The argument can be NULL.The data is owned by the caller of the method. error-
Type:
GError **The return location for a recoverable error.
The argument can be NULL.If the return location is not NULL, then you must initialize it to aNULLGError*.The argument will be left initialized to NULLby the method if there are no errors.In case of error, the argument will be set to a newly allocated GError; the caller will take ownership of the data, and be responsible for freeing it.