Check-in extra files from melkor:

- sendfile module
- cometlib.js
- more test apps



git-svn-id: http://chiral.j4cbo.com/svn/trunk@85 a827fe29-2235-0410-a7a9-cacdfe24a5d3

chaintest.py

@@ -0,0 +1,8 @@
+from chiral.core import coroutine
+
+def chain():
+	yield
+	raise coroutine.CoroutineRestart(chain())
+
+print "..."
+coroutine.Coroutine(chain(), autostart=True)

chiral/os/sendfile.py

@@ -0,0 +1,76 @@
+"""
+epoll() wrapper using ctypes
+"""
+
+# Chiral, copyright (c) 2007 Jacob Potter
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 2.
+
+import ctypes
+from ctypes.util import find_library
+import os
+
+libc = ctypes.CDLL(find_library("c"))
+
+try:
+	getattr(libc, "sendfile")
+except AttributeError:
+	raise ImportError("sendfile not available on this system")
+
+def _sendfile4(out_file, in_file, offset, count):
+	"""
+	Wrapper for Linux sendfile(2) system call.
+
+	out_file must be a socket; in_file must be a regular file object.
+	Returns the number of bytes actually written.
+	"""
+
+	offset = ctypes.c_int(offset)
+
+	ret = libc.sendfile(out_file.fileno(), in_file.fileno(), ctypes.byref(offset), int(count))
+
+	if ret < 0:
+		err = ctypes.c_int.in_dll(libc, "errno").value
+		raise OSError(err, os.strerror(err))
+
+	return ret
+
+def _sendfile6(out_file, in_file, offset, count):
+	"""
+	Wrapper for FreeBSD sendfile(2) system call.
+
+	out_file must be a socket; in_file must be a regular file object.
+	Returns the number of bytes actually written.
+	"""
+
+	count = int(count)
+	if count == 0:
+		return 0
+
+	sbytes = ctypes.c_int()
+
+	ret = libc.sendfile(
+		out_file.fileno(),
+		in_file.fileno(),
+		int(offset),
+		int(count),
+		None,
+		ctypes.byref(sbytes),
+		0
+	)
+
+	if ret < 0:
+		err = ctypes.c_int.in_dll(libc, "errno").value
+		raise OSError(err, os.strerror(err))
+
+	return sbytes.value
+
+if os.uname()[0] == "Linux":
+	sendfile = _sendfile4
+elif os.uname()[0] == "FreeBSD":
+	sendfile = _sendfile6
+else:
+	raise ImportError("Unknown OS.")
+
+__all__ = [ "sendfile" ]

chiral/web/cometlib.js

@@ -0,0 +1,76 @@
+var chiral = {
+	version : "$Rev $",
+	web : {},
+	log : function(message) { }
+}
+
+chiral.web.CometStream = function(source_url, data_callback) {
+
+	method = "iframe";
+
+	if (source_url.indexOf("?") != -1) {
+		source_url = source_url + "&_chiral_comet_method=" + method;
+	} else {
+		source_url = source_url + "?_chiral_comet_method=" + method;
+	}
+
+	this.run_MXMR = function() {
+		var xhr = new XMLHttpRequest();
+		xhr.multipart = true;
+		xhr.open("GET", source_url);
+		xhr.onload = function(event) {
+			if (xhr.readyState == 4) {
+				if (xhr.status == 200) {
+					data_callback(event.responseText);
+				} else {
+					chiral.log("chiral.web.CometStream MXMR failed: " + xhr.statusText);
+				}
+			}
+		}
+
+		xhr.send("")
+	}
+
+	this.run_iframe = function() {
+
+		/* Create the iframe in which the page will be loaded */
+		var ifr = document.createElement("iframe");
+		ifr.src = source_url;
+
+		/* To make sure the iframe remains hidden, set both DOM level 1
+		   and CSS properties
+		*/
+		ifr.style.visibility = "hidden";
+		ifr.style.position = "absolute";
+		ifr.style.border = "0px none";
+		ifr.style.left = "-10px";
+		ifr.style.top = "-10px";
+		ifr.width = 0;
+		ifr.height = 0;
+		ifr.marginWidth = 0;
+		ifr.marginHeight = 0;
+		ifr.frameBorder = 0;
+		ifr.scrolling = 0;
+
+		ifr.iframe_info = "test";
+
+		/* We may be able to attach it now; if not, then add a callback */
+		if (document.body) {
+			document.body.appendChild(ifr);
+		} else if (document.attachEvent) {
+			document.attachEvent("onload", function() {
+				document.body.appendChild(ifr);
+			});
+		} else {
+			window.addEventListener("load", function() {
+				document.body.appendChild(ifr);
+			}, true);
+		}
+setTimeout(function() { alert(ifr.contentWindow) }, 1000);
+	}
+
+	this["run_" + method]();
+}
+
+var cs = new chiral.web.CometStream("/static/c.html", function(s) { alert(s); })
+

dbustest.py

@@ -0,0 +1,16 @@
+#/usr/bin/env python2.5
+
+print "Loading modules..."
+
+from chiral.core import stats
+from chiral.net import reactor, dbus
+
+print "Initializing..."
+
+sb = dbus.SystemBusConnection()
+
+print "Running..."
+
+reactor.run()
+
+stats.dump()

static/c.html

@@ -0,0 +1,5 @@
+<html>
+<script>
+alert(window.iframe_info);
+</script>
+</html>

static/test.html

@@ -0,0 +1,7 @@
+<html>
+<head>
+<script type="text/javascript" src="/cometlib"></script>
+</head>
+<body>
+Comet Test
+</body>

threadpooltest.py

@@ -0,0 +1,27 @@
+#/usr/bin/env python2.5
+
+print "Loading modules..."
+
+from chiral.core import stats, threadpool
+from chiral.core.coroutine import as_coro
+from chiral.net import reactor, dbus
+import time
+
+from chiral.web.httpd import HTTPServer
+from chiral.web.introspector import Introspector
+
+
+print "Running..."
+
+@as_coro
+def threadpool_test():
+	print "sleeping..."
+	yield threadpool.run_in_thread(time.sleep, 1)
+	print "done"
+
+#HTTPServer(bind_addr = ('', 8082), application = Introspector())
+
+threadpool_test().start()
+
+reactor.run()
+stats.dump()