Struct ModuleVTable 

#[repr(C)]
pub struct ModuleVTable {
    pub init: Option<unsafe extern "C" fn(config: *const u8, config_len: usize) -> *mut c_void>,
    pub get_module_schema: Option<unsafe extern "C" fn(instance: *mut c_void, out_ptr: *mut *mut u8, out_len: *mut usize) -> i32>,
    pub get_module_artifacts: Option<unsafe extern "C" fn(instance: *mut c_void, out_ptr: *mut *mut u8, out_len: *mut usize) -> i32>,
    pub invoke: Option<unsafe extern "C" fn(instance: *mut c_void, function: *const u8, function_len: usize, args: *const u8, args_len: usize, out_ptr: *mut *mut u8, out_len: *mut usize) -> i32>,
    pub invoke_ex: Option<unsafe extern "C" fn(instance: *mut c_void, function: *const u8, function_len: usize, args: *const u8, args_len: usize, out: *mut ModuleInvokeResult) -> i32>,
    pub free_buffer: Option<unsafe extern "C" fn(ptr: *mut u8, len: usize)>,
    pub drop: Option<unsafe extern "C" fn(instance: *mut c_void)>,
}

Function pointer types for the base module capability (shape.module).

Fields

init: Option<unsafe extern "C" fn(config: *const u8, config_len: usize) -> *mut c_void>

Initialize module instance with MessagePack-encoded config.

get_module_schema: Option<unsafe extern "C" fn(instance: *mut c_void, out_ptr: *mut *mut u8, out_len: *mut usize) -> i32>

Return MessagePack-encoded ModuleSchema.

The caller must free the output buffer with free_buffer.

get_module_artifacts: Option<unsafe extern "C" fn(instance: *mut c_void, out_ptr: *mut *mut u8, out_len: *mut usize) -> i32>

Return MessagePack-encoded module artifacts payload.

This is an opaque host-defined payload for bundled Shape modules (source and/or precompiled artifacts). ABI keeps this generic.

The caller must free the output buffer with free_buffer.

invoke: Option<unsafe extern "C" fn(instance: *mut c_void, function: *const u8, function_len: usize, args: *const u8, args_len: usize, out_ptr: *mut *mut u8, out_len: *mut usize) -> i32>

Invoke a module function with MessagePack-encoded shape_wire::WireValue array.

function is a UTF-8 function name (bytes). args is a MessagePack-encoded Vec<shape_wire::WireValue> payload. On success, out_ptr/out_len contain MessagePack-encoded shape_wire::WireValue.

invoke_ex: Option<unsafe extern "C" fn(instance: *mut c_void, function: *const u8, function_len: usize, args: *const u8, args_len: usize, out: *mut ModuleInvokeResult) -> i32>

Invoke a module function and return a typed payload (WireValue or table IPC).

function is a UTF-8 function name (bytes). args is a MessagePack-encoded Vec<shape_wire::WireValue> payload. On success, out must be filled with a valid payload descriptor.

free_buffer: Option<unsafe extern "C" fn(ptr: *mut u8, len: usize)>

Free a buffer allocated by get_module_schema, invoke, or invoke_ex.

drop: Option<unsafe extern "C" fn(instance: *mut c_void)>

Cleanup and destroy the instance.