From f62c8e3e9a18d9af4f93cf325b5aa76e40d4904c Mon Sep 17 00:00:00 2001
From: Ricardo Salveti de Araujo <ricardo.salveti@openbossa.org>
Date: Tue, 10 Nov 2009 15:37:25 -0300
Subject: [PATCH 114/118] swapfile: Package created to provide swap over a loop file inside filesystem

Signed-off-by: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
Signed-off-by: Ricardo Salveti de Araujo <ricardo.salveti@openbossa.org>
---
 recipes/mamona/swapfile/swapfile |   52 ++++++++++++++++++++++++++++++++++++++
 recipes/mamona/swapfile_0.1.bb   |   33 ++++++++++++++++++++++++
 2 files changed, 85 insertions(+), 0 deletions(-)
 create mode 100644 recipes/mamona/swapfile/swapfile
 create mode 100644 recipes/mamona/swapfile_0.1.bb

diff --git a/recipes/mamona/swapfile/swapfile b/recipes/mamona/swapfile/swapfile
new file mode 100644
index 0000000..810cc2d
--- /dev/null
+++ b/recipes/mamona/swapfile/swapfile
@@ -0,0 +1,52 @@
+#! /bin/sh
+#
+# swapfile  Create a loop swap file in filesystem
+#
+# Authors:  Aloisio Almeida Jr<aloisio.almeida@openbossa.org>
+#
+# Version:  0.1-1  11-Dec-2008
+#
+
+set -e
+
+NAME=swapfile
+SCRIPTNAME=/etc/init.d/$NAME
+
+SWAPFILE_PATH=/var/cache/swapfile
+LOOPDEV_PATH=/dev/loop0
+
+swap_start() {
+    /sbin/losetup $LOOPDEV_PATH $SWAPFILE_PATH
+    /sbin/mkswap $LOOPDEV_PATH
+    /sbin/swapon $LOOPDEV_PATH
+}
+
+swap_stop() {
+    /sbin/swapoff $LOOPDEV_PATH || true
+    /sbin/losetup -d $LOOPDEV_PATH || true
+}
+
+case "$1" in
+  start)
+    echo -n "Starting $NAME... "
+    swap_start
+    echo "done."
+    ;;
+  stop)
+    echo -n "Stopping $NAME... "
+    swap_stop
+    echo "done."
+    ;;
+  restart|force-reload)
+    echo -n "Restarting $NAME... "
+    swap_stop
+    swap_start
+    echo "done."
+    ;;
+  *)
+    echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
+    exit 1
+    ;;
+esac
+
+exit 0
diff --git a/recipes/mamona/swapfile_0.1.bb b/recipes/mamona/swapfile_0.1.bb
new file mode 100644
index 0000000..9e51282
--- /dev/null
+++ b/recipes/mamona/swapfile_0.1.bb
@@ -0,0 +1,33 @@
+DESCRIPTION = "Create a loop swap file in filesystem"
+RDEPENDS = "busybox"
+PR = "r1"
+
+PACKAGES = "${PN}"
+SWAPSIZE = 16
+
+SRC_URI = "file://swapfile"
+
+inherit update-rc.d
+
+INITSCRIPT_NAME = "swapfile"
+INITSCRIPT_PARAMS = "defaults"
+
+do_install() {
+        install -d ${D}${sysconfdir}/init.d
+        install -m 0755 ${WORKDIR}/swapfile ${D}${sysconfdir}/init.d/
+}
+
+PACKAGE_ARCH = "all"
+
+pkg_postinst_${PN}() {
+        echo -n "Generating swapfile... "
+        rm -f /var/cache/swapfile
+        dd if=/dev/zero of=/var/cache/swapfile bs=1048576 count=${SWAPSIZE}
+        echo "done."
+}
+
+pkg_postrm_${PN}() {
+        echo -n "Removing swapfile... "
+        rm -f /var/cache/swapfile
+        echo "done."
+}
-- 
1.6.3.3