From 2f9a7211e2d6ab044595db8acf750e56b177190c Mon Sep 17 00:00:00 2001
From: Lloyd Hilaiel <lloyd@hilaiel.com>
Date: Thu, 17 Feb 2011 14:46:52 -0700
Subject: [PATCH] working example of how to use jsctypes to include native code
 in a module

---
 packages/chromeless-kit/lib/jsctypes/mylib.c  |  5 +++++
 packages/chromeless-kit/lib/jsctypes/mylib.js | 20 +++++++++++++++++++
 toph/index.html                               |  4 ++++
 3 files changed, 29 insertions(+)
 create mode 100644 packages/chromeless-kit/lib/jsctypes/mylib.c
 create mode 100644 packages/chromeless-kit/lib/jsctypes/mylib.js
 create mode 100644 toph/index.html

diff --git a/packages/chromeless-kit/lib/jsctypes/mylib.c b/packages/chromeless-kit/lib/jsctypes/mylib.c
new file mode 100644
index 0000000..30ee26e
--- /dev/null
+++ b/packages/chromeless-kit/lib/jsctypes/mylib.c
@@ -0,0 +1,5 @@
+const char * gettaStringFromNativeCode(void) 
+{
+    return "This string has come a loooong way";
+}
+
diff --git a/packages/chromeless-kit/lib/jsctypes/mylib.js b/packages/chromeless-kit/lib/jsctypes/mylib.js
new file mode 100644
index 0000000..8dd1183
--- /dev/null
+++ b/packages/chromeless-kit/lib/jsctypes/mylib.js
@@ -0,0 +1,20 @@
+const {Cc,Ci,Cm,Cr,Cu} = require("chrome");
+
+const path = require("path");
+
+/* Load JS Ctypes Javascript module */
+ctypes = {};
+Cu.import("resource://gre/modules/ctypes.jsm", ctypes);
+ctypes = ctypes.ctypes;
+
+exports.getString = function() {
+    let pathToLib = require("url").toFilename(__url__);
+    pathToLib = path.join(path.dirname(pathToLib), 'libmylib.dylib');
+    let lib = ctypes.open(pathToLib);
+    let getStr = lib.declare("gettaStringFromNativeCode",
+                             ctypes.default_abi,
+                             ctypes.char.ptr);
+    let rv = getStr().readString();
+    lib.close();
+    return rv;
+};
diff --git a/toph/index.html b/toph/index.html
new file mode 100644
index 0000000..ea6cf4c
--- /dev/null
+++ b/toph/index.html
@@ -0,0 +1,4 @@
+<script>
+const mylib = require('jsctypes/mylib');
+console.log(mylib.getString());
+</script>