From a52a53bbe7ad884562d7fb39c87442a38e331dd2 Mon Sep 17 00:00:00 2001
From: paulr <me@pjr.cc>
Date: Tue, 20 Sep 2011 04:02:38 +1000
Subject: [PATCH] comms stuff (ipc that is)

---
 bin/cbfwrd.php                  |   14 +++++++++++++
 libcbfwr/comms.php              |   42 +++++++++++++++++++++++++++++++++++++++
 libcbfwr/config.php             |    5 ++++
 unittests/readconfigfromshm.php |   26 ++++++++++++++++++++++++
 4 files changed, 87 insertions(+), 0 deletions(-)
 create mode 100644 unittests/readconfigfromshm.php

diff --git a/bin/cbfwrd.php b/bin/cbfwrd.php
index 6f49afe..b5a91b3 100644
--- a/bin/cbfwrd.php
+++ b/bin/cbfwrd.php
@@ -20,4 +20,18 @@ glcas_pluginLoader();
 error_log("CBFWRD starting");
 
 $config = new Config();
+
+// now we got into daemon modes
+$cont = true;
+
+// setup our sem/shm stuff
+
+// this stuff needs to go in comms
+while($cont) {
+	$comms = new Comms;
+	
+	$comms->putConfig($config->getConfig());
+	
+	$cont = false;
+}
 ?>
\ No newline at end of file
diff --git a/libcbfwr/comms.php b/libcbfwr/comms.php
index 808d1f8..b1195c9 100644
--- a/libcbfwr/comms.php
+++ b/libcbfwr/comms.php
@@ -7,4 +7,46 @@ $STORE_KEY = ftok(realpath(dirname(__FILE__)), "s");
 
 global $MESSAGE_KEY, $LOCKING_KEY, $STORE_KEY;
 
+class Comms {
+	function __construct()
+	{
+		global $MESSAGE_KEY, $LOCKING_KEY, $STORE_KEY;
+		$this->semres = sem_get($LOCKING_KEY, 0666);
+		$this->msgres = msg_get_queue($MESSAGE_KEY, 0666);
+	}
+	
+	function getConfig()
+	{
+		global $MESSAGE_KEY, $LOCKING_KEY, $STORE_KEY;
+		sem_acquire($this->semres);
+		$shm_space = shm_attach($STORE_KEY, 16*1024*1024);
+		$config = shm_get_var($shm_space, 0);
+		sem_release($this->semres);
+		
+		return $config;
+	}
+	
+	function putConfig($config)
+	{
+		global $MESSAGE_KEY, $LOCKING_KEY, $STORE_KEY;
+		sem_acquire($this->semres);
+		$shm_space = shm_attach($STORE_KEY, 16*1024*1024);
+		shm_put_var($shm_space, 0, $config);
+		sem_release($this->semres);		
+	}
+	
+	function waitForMessage()
+	{
+		
+	}
+	
+	function sendMessage()
+	{
+		
+	}
+	
+	private $semres, $msgres;
+	
+}
+
 ?>
\ No newline at end of file
diff --git a/libcbfwr/config.php b/libcbfwr/config.php
index d9a8eb2..94cf1b3 100644
--- a/libcbfwr/config.php
+++ b/libcbfwr/config.php
@@ -78,6 +78,11 @@ class Config {
 		}
 	}
 	
+	function getConfig()
+	{
+		return $this->config;
+	}
+	
 	function applyConfig()
 	{
 		global $AM_DAEMON;
diff --git a/unittests/readconfigfromshm.php b/unittests/readconfigfromshm.php
new file mode 100644
index 0000000..f05849b
--- /dev/null
+++ b/unittests/readconfigfromshm.php
@@ -0,0 +1,26 @@
+<?php
+$CMD_ROOT_FS = realpath(dirname(__FILE__));
+$AM_DAEMON = false;
+
+global $CMD_ROOT_FS;
+global $AM_DAEMON;
+
+// add libglcas as if it were a path in ../libglcas
+if(file_exists("../libcbfwr")) {
+	$path = realpath($CMD_ROOT_FS."/../");
+	error_log("added cbfwr path as $path");
+	set_include_path(get_include_path().PATH_SEPARATOR.$path);
+}
+
+// include the based library
+require_once("libcbfwr/lib.php");
+
+glcas_pluginLoader();
+
+$comms = new Comms();
+
+$conf = $comms->getConfig();
+
+print_r($conf);
+
+?>
\ No newline at end of file
-- 
1.7.0.4