Virtualvfunc_Checks if a and b are equal, ie. represent the same subject.
However, avoid calling polkit_subject_equal() to compare two processes;
for more information see the Polkit.UnixProcess documentation.
This function can be used in e.g. g_hash_table_new().
Virtualvfunc_Asynchronously checks if subject exists.
When the operation is finished, callback will be invoked in the
A Gio.Cancellable or null.
A Gio.AsyncReadyCallback to call when the request is satisfied
Virtualvfunc_Finishes checking whether a subject exists.
A Gio.AsyncResult obtained from the Gio.AsyncReadyCallback passed to polkit_subject_exists().
Virtualvfunc_Checks if subject exists.
This is a synchronous blocking call - the calling thread is blocked
until a reply is received. See polkit_subject_exists() for the
asynchronous version.
A Gio.Cancellable or null.
Virtualvfunc_Gets a hash code for subject that can be used with e.g. g_hash_table_new().
Virtualvfunc_Serializes subject to a string that can be used in
polkit_subject_from_string().
Interface for implementing Subject. Contains only the virtual methods that need to be implemented.