Struct nng::Context [−][src]
pub struct Context { /* fields omitted */ }
Expand description
A socket context.
The context allows for independent and concurrent use of stateful operations on a single socket. Using contexts is an excellent way to write simpler concurrent applications, while retaining the benefits of the protocol-specific advanced processing.
Note that not all protocols allow for the creation of contexts.
Examples
See the documentation of the Aio
type for examples on how to use socket
contexts.
Implementations
Creates a new socket context.
Errors
NotSupported
: The protocol does not support separate contexts or the socket was opened in raw mode.OutOfMemory
: Insufficient memory is available.
Start a send operation on the given Aio
and return immediately.
Errors
IncorrectState
: TheAio
already has a running operation.
Start a receive operation using the given Aio
and return
immediately.
Errors
IncorrectState
: TheAio
already has a running operation.
Closes the context.
Messages that have been submitted for sending may be flushed or delivered, depending on the underlying transport and the linger option. Further attempts to use the context (with this or any other handle) will result in an error. Threads waiting for operations on the context when this call is executed may also return with an error.
Closing the owning socket also closes this context. Additionally, the context is closed once all handles have been dropped.
Trait Implementations
This method returns an ordering between self
and other
values if one exists. Read more
This method tests less than (for self
and other
) and is used by the <
operator. Read more
This method tests less than or equal to (for self
and other
) and is used by the <=
operator. Read more
This method tests greater than (for self
and other
) and is used by the >
operator. Read more
Auto Trait Implementations
impl RefUnwindSafe for Context
impl UnwindSafe for Context
Blanket Implementations
Mutably borrows from an owned value. Read more