Struct MYSQL_PLUGIN_VIO

#[repr(C)]
pub struct MYSQL_PLUGIN_VIO {
    pub read_packet: Option<unsafe extern "C" fn(vio: *mut MYSQL_PLUGIN_VIO, buf: *mut *mut c_uchar) -> c_int>,
    pub write_packet: Option<unsafe extern "C" fn(vio: *mut MYSQL_PLUGIN_VIO, packet: *const c_uchar, packet_len: c_int) -> c_int>,
    pub info: Option<unsafe extern "C" fn(vio: *mut MYSQL_PLUGIN_VIO, info: *mut MYSQL_PLUGIN_VIO_INFO)>,
    pub read_packet_nonblocking: Option<unsafe extern "C" fn(vio: *mut MYSQL_PLUGIN_VIO, buf: *mut *mut c_uchar, result: *mut c_int) -> net_async_status>,
    pub write_packet_nonblocking: Option<unsafe extern "C" fn(vio: *mut MYSQL_PLUGIN_VIO, pkt: *const c_uchar, pkt_len: c_int, result: *mut c_int) -> net_async_status>,
}

Provides plugin access to communication channel

Fields

read_packet: Option<unsafe extern "C" fn(vio: *mut MYSQL_PLUGIN_VIO, buf: *mut *mut c_uchar) -> c_int>

Plugin provides a pointer reference and this function sets it to the contents of any incoming packet. Returns the packet length, or -1 if the plugin should terminate.

write_packet: Option<unsafe extern "C" fn(vio: *mut MYSQL_PLUGIN_VIO, packet: *const c_uchar, packet_len: c_int) -> c_int>

Plugin provides a buffer with data and the length and this function sends it as a packet. Returns 0 on success, 1 on failure.

info: Option<unsafe extern "C" fn(vio: *mut MYSQL_PLUGIN_VIO, info: *mut MYSQL_PLUGIN_VIO_INFO)>

Fills in a MYSQL_PLUGIN_VIO_INFO structure, providing the information about the connection.

read_packet_nonblocking: Option<unsafe extern "C" fn(vio: *mut MYSQL_PLUGIN_VIO, buf: *mut *mut c_uchar, result: *mut c_int) -> net_async_status>

Non blocking version of read_packet. This function points buf to starting position of incoming packet. When this function returns NET_ASYNC_NOT_READY plugin should call this function again until all incoming packets are read. If return code is NET_ASYNC_COMPLETE, plugin can do further processing of read packets.

write_packet_nonblocking: Option<unsafe extern "C" fn(vio: *mut MYSQL_PLUGIN_VIO, pkt: *const c_uchar, pkt_len: c_int, result: *mut c_int) -> net_async_status>

Non blocking version of write_packet. Sends data available in pkt of length pkt_len to server in asynchronous way.

Trait Implementations

impl Clone for MYSQL_PLUGIN_VIO

fn clone(&self) -> MYSQL_PLUGIN_VIO

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MYSQL_PLUGIN_VIO

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for MYSQL_PLUGIN_VIO