1 files changed, 42 insertions, 0 deletions
diff --git a/src/runtime/os_js.go b/src/runtime/os_js.go
new file mode 100644
index 0000000..099c526
--- /dev/null
+++ b/src/runtime/os_js.go
@@ -0,0 +1,42 @@
+// Copyright 2018 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+//go:build js && wasm
+
+package runtime
+
+import (
+	"unsafe"
+)
+
+func exit(code int32)
+
+func write1(fd uintptr, p unsafe.Pointer, n int32) int32 {
+	if fd > 2 {
+		throw("runtime.write to fd > 2 is unsupported")
+	}
+	wasmWrite(fd, p, n)
+	return n
+}
+
+//go:wasmimport gojs runtime.wasmWrite
+//go:noescape
+func wasmWrite(fd uintptr, p unsafe.Pointer, n int32)
+
+func usleep(usec uint32) {
+	// TODO(neelance): implement usleep
+}
+
+//go:wasmimport gojs runtime.getRandomData
+//go:noescape
+func getRandomData(r []byte)
+
+func readRandom(r []byte) int {
+	getRandomData(r)
+	return len(r)
+}
+
+func goenvs() {
+	goenvs_unix()
+}