Struct scratchstack_wrapper_aws_c_io::aws_input_stream_vtable

#[repr(C)]
pub struct aws_input_stream_vtable {
    pub seek: Option<unsafe extern "C" fn(stream: *mut aws_input_stream, offset: i64, basis: aws_stream_seek_basis) -> c_int>,
    pub read: Option<unsafe extern "C" fn(stream: *mut aws_input_stream, dest: *mut aws_byte_buf) -> c_int>,
    pub get_status: Option<unsafe extern "C" fn(stream: *mut aws_input_stream, status: *mut aws_stream_status) -> c_int>,
    pub get_length: Option<unsafe extern "C" fn(stream: *mut aws_input_stream, out_length: *mut i64) -> c_int>,
    pub acquire: Option<unsafe extern "C" fn(stream: *mut aws_input_stream)>,
    pub release: Option<unsafe extern "C" fn(stream: *mut aws_input_stream)>,
}

Fields

seek: Option<unsafe extern "C" fn(stream: *mut aws_input_stream, offset: i64, basis: aws_stream_seek_basis) -> c_int>

read: Option<unsafe extern "C" fn(stream: *mut aws_input_stream, dest: *mut aws_byte_buf) -> c_int>

Stream as much data as will fit into the destination buffer and update its length. The destination buffer’s capacity MUST NOT be changed.

Return AWS_OP_SUCCESS if the read is successful. If AWS_OP_ERR is returned, the stream is assumed to be invalid and any data written to the buffer is ignored.

If no more data is currently available, or the end of the stream has been reached, simply return AWS_OP_SUCCESS without touching the destination buffer.

get_status: Option<unsafe extern "C" fn(stream: *mut aws_input_stream, status: *mut aws_stream_status) -> c_int>

get_length: Option<unsafe extern "C" fn(stream: *mut aws_input_stream, out_length: *mut i64) -> c_int>

acquire: Option<unsafe extern "C" fn(stream: *mut aws_input_stream)>

Optional. If not set, the default aws_ref_count_acquire/release will be used. Set for high level language binding that has its own refcounting implementation and needs to be kept alive from C. If set, ref_count member will not be used.

release: Option<unsafe extern "C" fn(stream: *mut aws_input_stream)>

Trait Implementations

impl Clone for aws_input_stream_vtable

fn clone(&self) -> aws_input_stream_vtable

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for aws_input_stream_vtable

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

Formats the value using the given formatter.

impl Default for aws_input_stream_vtable

fn default() -> aws_input_stream_vtable

Returns the “default value” for a type.

impl PartialEq<aws_input_stream_vtable> for aws_input_stream_vtable

fn eq(&self, other: &aws_input_stream_vtable) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for aws_input_stream_vtable

impl Eq for aws_input_stream_vtable

impl StructuralEq for aws_input_stream_vtable

impl StructuralPartialEq for aws_input_stream_vtable