private WasmtimeException Define(string moduleName, string name, IntPtr ext)
{
var moduleNameBytes = Encoding.UTF8.GetBytes(moduleName);
var nameBytes = Encoding.UTF8.GetBytes(name);
unsafe
{
fixed(byte *moduleNamePtr = moduleNameBytes)
fixed(byte *namePtr = nameBytes)
{
Interop.wasm_byte_vec_t moduleNameVec = new Interop.wasm_byte_vec_t();
moduleNameVec.size = (UIntPtr)moduleNameBytes.Length;
moduleNameVec.data = moduleNamePtr;
Interop.wasm_byte_vec_t nameVec = new Interop.wasm_byte_vec_t();
nameVec.size = (UIntPtr)nameBytes.Length;
nameVec.data = namePtr;
var error = Interop.wasmtime_linker_define(Linker, ref moduleNameVec, ref nameVec, ext);
if (error != IntPtr.Zero)
{
return(WasmtimeException.FromOwnedError(error));
}
return(null);
}
}
}
private bool Define(string moduleName, string name, IntPtr ext)
{
var moduleNameBytes = Encoding.UTF8.GetBytes(moduleName);
var nameBytes = Encoding.UTF8.GetBytes(name);
unsafe
{
fixed(byte *moduleNamePtr = moduleNameBytes)
fixed(byte *namePtr = nameBytes)
{
Interop.wasm_byte_vec_t moduleNameVec = new Interop.wasm_byte_vec_t();
moduleNameVec.size = (UIntPtr)moduleNameBytes.Length;
moduleNameVec.data = moduleNamePtr;
Interop.wasm_byte_vec_t nameVec = new Interop.wasm_byte_vec_t();
nameVec.size = (UIntPtr)nameBytes.Length;
nameVec.data = namePtr;
return(Interop.wasmtime_linker_define(Linker, ref moduleNameVec, ref nameVec, ext));
}
}
}
/// <summary>
/// Gets an exported memory of the caller by the given name.
/// </summary>
/// <param name="name">The name of the exported memory.</param>
/// <returns>Returns the exported memory if found or null if a memory of the requested name is not exported.</returns>
public CallerMemory GetMemory(string name)
{
if (Handle == IntPtr.Zero)
{
throw new InvalidOperationException();
}
unsafe
{
var bytes = Encoding.UTF8.GetBytes(name);
fixed(byte *ptr = bytes)
{
Interop.wasm_byte_vec_t nameVec = new Interop.wasm_byte_vec_t();
nameVec.size = (UIntPtr)bytes.Length;
nameVec.data = ptr;
var export = Interop.wasmtime_caller_export_get(Handle, ref nameVec);
if (export.IsInvalid)
{
return(null);
}
var memory = Interop.wasm_extern_as_memory(export.DangerousGetHandle());
if (memory == IntPtr.Zero)
{
export.Dispose();
return(null);
}
return(new CallerMemory(export, memory));
}
}
}