Virtual Method
GioInputStreamskip_async
Declaration
void
skip_async (
GInputStream* stream,
gsize count,
int io_priority,
GCancellable* cancellable,
GAsyncReadyCallback callback,
gpointer user_data
)
Description
Request an asynchronous skip of count bytes from the stream.
When the operation is finished callback will be called.
You can then call g_input_stream_skip_finish() to get the result
of the operation.
During an async request no other sync and async calls are allowed,
and will result in G_IO_ERROR_PENDING errors.
A value of count larger than G_MAXSSIZE will cause a G_IO_ERROR_INVALID_ARGUMENT error.
On success, the number of bytes skipped will be passed to the callback.
It is not an error if this is not the same as the requested size, as it
can happen e.g. near the end of a file, but generally we try to skip
as many bytes as requested. Zero is returned on end of file
(or if count is zero), but never otherwise.
Any outstanding i/o request with higher priority (lower numerical value)
will be executed before an outstanding request with lower priority.
Default priority is G_PRIORITY_DEFAULT.
The asynchronous methods have a default fallback that uses threads to implement asynchronicity, so they are optional for inheriting classes. However, if you override one, you must override all.
Parameters
count-
Type:
gsizeThe number of bytes that will be skipped from the stream.
io_priority-
Type:
intThe I/O priority of the request.
cancellable-
Type:
GCancellableOptional
GCancellableobject,NULLto ignore.The argument can be NULL.The data is owned by the caller of the function. callback-
Type:
GAsyncReadyCallbackA
GAsyncReadyCallbackto call when the request is satisfied. user_data-
Type:
gpointerThe data to pass to callback function.
The argument can be NULL.The data is owned by the caller of the function.