Cleanup main app code.

bin/qasim-gui.rb

@@ -26,7 +26,12 @@ end
 
 
 module Qasim
-	class QasimGui
+	class QasimApp
+		def initialize
+		end
+	end
+
+	class QasimGui < QasimApp
 
 
 		def initialize
@@ -207,10 +212,8 @@ module Qasim
 		end
 
 
-		#
-		#
-		#
-		def run
+		def lock_set
+			begin
 				# create lock
 				have_lock = true
 
@@ -221,18 +224,15 @@ module Qasim
 				f = IO.open(fd)
 				f.syswrite( "#{Process.pid}\n" )
 				f.close
-			@app.exec
 			rescue Errno::EEXIST => e
 				# test if the other process still exist
 				masterpid = File.read(lockfname).strip
-			begin
 				# FIXME: test if the other process exists
 				other_path = "/proc/#{masterpid.to_i}"
 				if File.exists? other_path then
 					cmdline = File.read( File.join( other_path, 'cmdline' ) )
 					if cmdline =~ /qasim/ then
-						warn "error: Another instance of %s is already running." % APP_NAME
-						exit 1
+						raise LockError, "Another instance of %s is already running." % APP_NAME
 					end
 				end
 				fd = IO::sysopen( lockfname,
@@ -240,15 +240,26 @@ module Qasim
 				f = IO.open(fd)
 				f.syswrite( "#{Process.pid}\n" )
 				f.close
-				@app.exec
 			end
-		ensure
+		end
+
+		def lock_unset
 			masterpid = File.read(lockfname).strip
 			if masterpid.to_i == Process.pid then
 				FileUtils.rm lockfname
 			end
 		end
 
+		#
+		#
+		#
+		def run
+			lock_set
+			@app.exec
+		ensure
+			lock_unset
+		end
+
 
 		#
 		#