Struct mysqlclient_sys::st_plugin_vio

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#[repr(C)]
pub struct st_plugin_vio { pub read_packet: Option<unsafe extern "C" fn(vio: *mut st_plugin_vio, buf: *mut *mut c_uchar) -> c_int>, pub write_packet: Option<unsafe extern "C" fn(vio: *mut st_plugin_vio, packet: *const c_uchar, packet_len: c_int) -> c_int>, pub info: Option<unsafe extern "C" fn(vio: *mut st_plugin_vio, info: *mut st_plugin_vio_info)>, }
Expand description

Provides plugin access to communication channel

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§read_packet: Option<unsafe extern "C" fn(vio: *mut st_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 st_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 st_plugin_vio, info: *mut st_plugin_vio_info)>

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

Trait Implementations§

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impl Clone for st_plugin_vio

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for st_plugin_vio

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

Formats the value using the given formatter. Read more
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impl Copy for st_plugin_vio

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.