[−][src]Function eosio_cdt_sys::read_action_data
pub unsafe extern "C" fn read_action_data(msg: *mut c_void, len: u32) -> u32
Copy up to length bytes of current action data to the specified location
@brief Copy current action data to the specified location
@param msg - a pointer where up to length bytes of the current action data will be copied
@param len - len of the current action data to be copied, 0 to report required size
@return the number of bytes copied to msg, or number of bytes that can be copied if len==0 passed
@pre msg
is a valid pointer to a range of memory at least len
bytes long
@post msg
is filled with packed action data