Examples with WasmMemory org.graalvm.wasm.memory.WasmMemory used on opensource projects

Example 21 with WasmMemory

use of org.graalvm.wasm.memory.WasmMemory in project graal by oracle.

the class GetTimeOfDayNode method executeWithContext.

@Override
public Object executeWithContext(VirtualFrame frame, WasmContext context) {
    Object[] args = frame.getArguments();
    assert args.length == 2;
    int ptr = (int) args[0];
    long now = getCurrentTime();
    WasmMemory memory = instance.memory();
    memory.store_i32(this, ptr, (int) (now / 1000));
    memory.store_i32(this, ptr + 4, (int) (now % 1000 * 1000));
    return 0;
}

Example 22 with WasmMemory

use of org.graalvm.wasm.memory.WasmMemory in project graal by oracle.

the class SaveBinaryFileNode method saveFile.

@CompilerDirectives.TruffleBoundary
private void saveFile(int filenamePtr, int dataPtr, int size) {
    final WasmContext context = getContext();
    Assert.assertIntLessOrEqual(context.memories().count(), 1, "Currently, dumping works with only 1 memory.", Failure.UNSPECIFIED_MALFORMED);
    final WasmMemory memory = context.memories().memory(0);
    // Read the file name.
    String filename = readFileName(memory, filenamePtr);
    final Path temporaryFile = temporaryDirectory.resolve(filename);
    if (!TestutilModule.Options.KEEP_TEMP_FILES.equals("true")) {
        temporaryFile.toFile().deleteOnExit();
    }
    // Read the byte array.
    byte[] bytes = new byte[size];
    for (int i = 0; i < size; i++) {
        bytes[i] = (byte) memory.load_i32_8u(this, dataPtr + i);
    }
    // Store the byte array to a temporary file.
    try (FileOutputStream stream = new FileOutputStream(temporaryFile.toFile())) {
        stream.write(bytes);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

Example 23 with WasmMemory

use of org.graalvm.wasm.memory.WasmMemory in project graal by oracle.

the class ImportModule method createInstance.

@Override
protected WasmInstance createInstance(WasmLanguage language, WasmContext context, String name) {
    WasmInstance instance = new WasmInstance(context, WasmModule.createBuiltin(name), functions.size());
    for (Map.Entry<String, Pair<WasmFunction, Object>> entry : functions.entrySet()) {
        final String functionName = entry.getKey();
        final Pair<WasmFunction, Object> info = entry.getValue();
        final WasmFunction function = info.getLeft();
        final SymbolTable.FunctionType type = function.type();
        if (info.getRight() instanceof WasmFunctionInstance) {
            defineExportedFunction(instance, functionName, type.paramTypes(), type.returnTypes(), (WasmFunctionInstance) info.getRight());
        } else {
            defineFunction(instance, functionName, type.paramTypes(), type.returnTypes(), new ExecuteInParentContextNode(context.language(), instance, info.getRight()));
        }
    }
    for (Map.Entry<String, WasmMemory> entry : memories.entrySet()) {
        final String memoryName = entry.getKey();
        final WasmMemory memory = entry.getValue();
        defineExternalMemory(instance, memoryName, memory);
    }
    for (Map.Entry<String, WasmTable> entry : tables.entrySet()) {
        final String tableName = entry.getKey();
        final WasmTable table = entry.getValue();
        defineExternalTable(instance, tableName, table);
    }
    for (Map.Entry<String, WasmGlobal> entry : globals.entrySet()) {
        final String globalName = entry.getKey();
        final WasmGlobal global = entry.getValue();
        defineExternalGlobal(instance, globalName, global);
    }
    return instance;
}