X-Git-Url: http://git.datanom.net/omvzfs.git/blobdiff_plain/2777aa0105ab8da8c267156a076349651205c1cd..9b2acb8e1c4e91bf2d855b1f96efa0464e212eb9:/src/Zvol.php?ds=sidebyside

diff --git a/src/Zvol.php b/src/Zvol.php
index 47701dc..e35af5a 100644
--- a/src/Zvol.php
+++ b/src/Zvol.php
@@ -1,6 +1,7 @@
 <?php
 require_once("Exception.php");
 require_once("openmediavault/util.inc");
+require_once("Snapshot.php");
 
 /**
  * XXX detailed description
@@ -36,6 +37,14 @@ class OMVModuleZFSZvol {
 	 */
 	private $properties;
 
+	/**
+	 * Array with Snapshots associated to the Zvol
+	 * 
+	 * @var     array $snapshots
+	 * @access private
+	 */
+	private $snapshots;
+
 	// Associations
 	// Operations
 
@@ -48,17 +57,25 @@ class OMVModuleZFSZvol {
 	 * @access public
 	 */
 	public function __construct($name) {
+		$zvol_exists = true;
 		$this->name = $name;
-		$qname = preg_quote($name, '/');
-		$cmd = "zfs list -H -t volume 2>&1";
-		$this->exec($cmd, $out, $res);
-		foreach ($out as $line) {
-			if (preg_match('/^' . $qname . '\t.*$/', $line)) {
-				$this->updateAllProperties();
-				$this->size = $this->properties["volsize"]["value"];
-				continue;
+		$cmd = "zfs list -H -t volume " . $name . " 2>&1";
+		try {
+			$this->exec($cmd, $out, $res);
+			$this->updateAllProperties();
+			$this->size = $this->properties["volsize"]["value"];
+		}
+		catch (OMVModuleZFSException $e) {
+			$zvol_exists = false;
+		}
+		if ($zvol_exists) {
+			$cmd = "zfs list -r -d 1 -o name -H -t snapshot " . $name . " 2>&1";
+			$this->exec($cmd, $out2, $res2);
+			foreach ($out2 as $line2) {
+				$this->snapshots[$line2] = new OMVModuleZFSSnapshot($line2);
 			}
 		}
+
 	}
 
 	/**
@@ -104,6 +121,20 @@ class OMVModuleZFSZvol {
 		return $this->size;
 	}
 
+	/**
+	 * Get all Snapshots associated with the Zvol
+	 * 
+	 * @return array $snapshots
+	 * @access public
+	 */
+	public function getSnapshots() {
+		if (isset($this->snapshots)) {
+			return $this->snapshots;
+		} else {
+			return array();
+		}
+	}
+
 	/**
 	 * Sets a number of Zvol properties. If a property is already set it will be updated with the new value.
 	 * 
@@ -208,6 +239,33 @@ class OMVModuleZFSZvol {
 		$this->updateProperty($property);
 	}
 
+	/**
+	 * Creates a Snapshot and adds it to the existing list of snapshots associated
+	 * with the Zvol.
+	 * 
+	 * @param string $snap_name Name of the Snapshot to create.
+	 * @param array $properties Optional array of properties to set on Snapshot
+	 * @return void
+	 * @access public
+	 */
+	public function addSnapshot($snap_name, array $properties = null) {
+		$snap = new OMVModuleZFSSnapshot($snap_name);
+		$snap->create($properties);
+		$this->snapshots[$snap_name] = $snap;
+	}
+
+	/**
+	 * Destroys a Snapshot on commandline and removes it from the Zvol.
+	 * 
+	 * @param string $snap_name Name of the Snapshot to delete.
+	 * @return void
+	 * @access public
+	 */
+	public function deleteSnapshot($snap_name) {
+		$this->snapshots[$snap_name]->destroy();
+		unset($this->snapshots[$snap_name]);
+	}
+
 	/**
 	 * Helper function to execute a command and throw an exception on error
 	 * (requires stderr redirected to stdout for proper exception message).