Trait wasmtime_wasi::bindings::sockets::tcp_create_socket::Host
source · pub trait Host: Send {
// Required method
fn create_tcp_socket(
&mut self,
address_family: IpAddressFamily,
) -> Result<Resource<TcpSocket>, SocketError>;
}
Required Methods§
sourcefn create_tcp_socket(
&mut self,
address_family: IpAddressFamily,
) -> Result<Resource<TcpSocket>, SocketError>
fn create_tcp_socket( &mut self, address_family: IpAddressFamily, ) -> Result<Resource<TcpSocket>, SocketError>
Create a new TCP socket.
Similar to socket(AF_INET or AF_INET6, SOCK_STREAM, IPPROTO_TCP)
in POSIX.
On IPv6 sockets, IPV6_V6ONLY is enabled by default and can’t be configured otherwise.
This function does not require a network capability handle. This is considered to be safe because
at time of creation, the socket is not bound to any network
yet. Up to the moment bind
/connect
is called, the socket is effectively an in-memory configuration object, unable to communicate with the outside world.
All sockets are non-blocking. Use the wasi-poll interface to block on asynchronous operations.
§Typical errors
not-supported
: The specifiedaddress-family
is not supported. (EAFNOSUPPORT)new-socket-limit
: The new socket resource could not be created because of a system limit. (EMFILE, ENFILE)
§References
Implementations on Foreign Types§
source§impl<_T: Host + ?Sized + Send> Host for &mut _T
impl<_T: Host + ?Sized + Send> Host for &mut _T
source§fn create_tcp_socket(
&mut self,
address_family: IpAddressFamily,
) -> Result<Resource<TcpSocket>, SocketError>
fn create_tcp_socket( &mut self, address_family: IpAddressFamily, ) -> Result<Resource<TcpSocket>, SocketError>
Create a new TCP socket.
Similar to socket(AF_INET or AF_INET6, SOCK_STREAM, IPPROTO_TCP)
in POSIX.
On IPv6 sockets, IPV6_V6ONLY is enabled by default and can’t be configured otherwise.
This function does not require a network capability handle. This is considered to be safe because
at time of creation, the socket is not bound to any network
yet. Up to the moment bind
/connect
is called, the socket is effectively an in-memory configuration object, unable to communicate with the outside world.
All sockets are non-blocking. Use the wasi-poll interface to block on asynchronous operations.
§Typical errors
not-supported
: The specifiedaddress-family
is not supported. (EAFNOSUPPORT)new-socket-limit
: The new socket resource could not be created because of a system limit. (EMFILE, ENFILE)