X-Git-Url: http://git.pjr.cc/?p=CBFWR.git;a=blobdiff_plain;f=libcbfwr%2Fcomms.php;h=b0c4f041c91617881504977d7b45c3856d4f57a0;hp=808d1f84387a0944aeda8c5a41c48b84a49fbd7e;hb=c184472f1c4206a3bcd76ff8e9d27dc2eb1a4c4c;hpb=db4f63e0e2c434ded60cd1fd324be62a2aadcae1

diff --git a/libcbfwr/comms.php b/libcbfwr/comms.php
index 808d1f8..b0c4f04 100644
--- a/libcbfwr/comms.php
+++ b/libcbfwr/comms.php
@@ -1,10 +1,75 @@
 <?php
 // C = msg key
 // L = locking key
-$MESSAGE_KEY = ftok(realpath(dirname(__FILE__)), "c");
+$MESSAGE_KEY = ftok(realpath(dirname(__FILE__)), "c"); // to daemon
 $LOCKING_KEY = ftok(realpath(dirname(__FILE__)), "l");
 $STORE_KEY = ftok(realpath(dirname(__FILE__)), "s");
+$CONF_STORE_SIZE = 16777216; // 16M by default
 
-global $MESSAGE_KEY, $LOCKING_KEY, $STORE_KEY;
+global $MESSAGE_KEY, $LOCKING_KEY, $STORE_KEY, $CONF_STORE_SIZE;
+
+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($type=0)
+	{
+		global $MESSAGE_KEY, $LOCKING_KEY, $STORE_KEY, $CONF_STORE_SIZE;
+		sem_acquire($this->semres);
+		$shm_space = shm_attach($STORE_KEY, $CONF_STORE_SIZE);
+		$config = shm_get_var($shm_space, $type);
+		sem_release($this->semres);
+		
+		return $config;
+	}
+	
+	function lockConfigs()
+	{
+		sem_acquire($this->semres);
+	}
+	
+	function unlockConfigs()
+	{
+		sem_release($this->semres);
+	}
+	
+	
+	// type = 0 for the fs config
+	// type = 1 for the boot hardware config
+	// type = 2 for running config
+	// type = 3 for web config
+	function putConfig($config, $type=0)
+	{
+		global $MESSAGE_KEY, $LOCKING_KEY, $STORE_KEY, $CONF_STORE_SIZE;
+		sem_acquire($this->semres);
+		$shm_space = shm_attach($STORE_KEY, $CONF_STORE_SIZE);
+		shm_put_var($shm_space, $type, $config);
+		sem_release($this->semres);		
+	}
+	
+	function waitForMessage()
+	{
+		global $MESSAGE_KEY, $LOCKING_KEY, $STORE_KEY;
+		$queue = msg_get_queue($MESSAGE_KEY);
+		msg_receive($queue, 0, $msgtype, 1024, $msg);
+		
+		return $msg;
+	}
+	
+	function sendMessage($msg)
+	{
+		global $MESSAGE_KEY, $LOCKING_KEY, $STORE_KEY;
+		$queue = msg_get_queue($MESSAGE_KEY);
+		msg_send($queue, 1, $msg);
+		
+	}
+	
+	private $semres, $msgres;
+	
+}
 
 ?>
\ No newline at end of file