Struct Vm

pub struct Vm<DB: ZephyrDatabase, L: LedgerStateRead> {
    pub store: RefCell<Store<Host<DB, L>>>,
    pub memory_manager: MemoryManager,
    /* private fields */
}

The Zephyr VM.

Fields

store: RefCell<Store<Host<DB, L>>>

VM’s store object. Provides bindings to the host.

memory_manager: MemoryManager

Memory manager.

Implementations

impl<DB: ZephyrDatabase + Clone + 'static, L: LedgerStateRead + Clone + 'static> Vm<DB, L>

pub fn new( host: &Host<DB, L>, wasm_module_code_bytes: &[u8], ) -> Result<Rc<Self>>

Creates and instantiates the VM.

pub fn metered_call(self: &Rc<Self>, host: &Host<DB, L>) -> Result<()>

Entry point of a Zephyr VM invocation. By default, the called function is defined in the host as the InvokedFunctionInfo. The function itself won’t return anything but will have access to the Database implementation and the ledger metadata through Host bindings.

pub fn metered_function_call( self: &Rc<Self>, host: &Host<DB, L>, fname: &str, ) -> Result<String>

Executes the requested exported function of the binary.