GModule && Vala

vala/abstract_class/abstract_class.vala

@@ -0,0 +1,22 @@
+public abstract class Animal : Object {
+
+    public void eat() {
+        stdout.printf("*chomp chomp*\n");
+    }
+
+    public abstract void say_hello();
+}
+
+public class Tiger : Animal {
+
+    public override void say_hello() {
+        stdout.printf("*roar*\n");
+    }
+}
+
+/*public class Duck : Animal {
+
+    public override void say_hello() {
+        stdout.printf("*quack*\n");
+    }
+}*/

vala/abstract_class/simple_class.vala

@@ -0,0 +1,23 @@
+public abstract class Animal : Object {
+
+    public void eat() {
+        stdout.printf("*chomp chomp*\n");
+    }
+
+    public abstract void say_hello();
+}
+
+public class Tiger : Animal {
+
+    public override void say_hello() {
+        stdout.printf("*roar*\n");
+    }
+}
+
+/*public class Duck : Animal {
+
+    public override void say_hello() {
+        stdout.printf("*quack*\n");
+    }
+}*/
+

vala/gmodule.live.gnome/loader.vala

@@ -0,0 +1,56 @@
+class MyModule : TypeModule
+{
+        [CCode (has_target = false)]
+        private delegate Type PluginInitFunc(TypeModule module);
+
+        private GLib.Module module = null;
+
+        private string name = null;
+
+        public MyModule(string name)
+        {
+                this.name = name;
+        }
+
+        public override bool load()
+        {
+                string path = Module.build_path(null, name);
+                module = Module.open(path, GLib.ModuleFlags.BIND_LAZY);
+                if(null == module) {
+                        error("Module not found");
+                }
+
+                void * plugin_init = null;
+                if(! module.symbol("plugin_init", out plugin_init)) {
+                        error("No such symbol");
+                }
+
+                ((PluginInitFunc) plugin_init)(this);
+
+                return true;
+        }
+
+        public override void unload()
+        {
+                module = null;
+
+                message("Library unloaded");
+        }
+}
+
+// Never unref instance of GTypeModule
+// http://www.lanedo.com/~mitch/module-system-talk-guadec-2006/Module-System-Talk-Guadec-2006.pdf
+static TypeModule module = null;
+
+int main()
+{
+        module = new MyModule("plugin");
+        module.load();
+
+        var o = GLib.Object.new(Type.from_name("MyClass"));
+
+        // free last instance, plugin unload
+        o = null;
+
+        return 0;
+}

vala/gmodule.live.gnome/plugin.vala

@@ -0,0 +1,18 @@
+public class MyClass : Object
+{
+        static construct
+        {
+                message("MyClass init");
+        }
+
+        static ~MyClass()
+        {
+                message("MyClass deinit");
+        }
+}
+
+[ModuleInit]
+Type plugin_init(GLib.TypeModule type_modul)
+{
+        return typeof(MyClass);
+}

vala/gmodule/CMakeLists.txt

@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 2.8)
+
+list (APPEND CMAKE_MODULE_PATH
+      ${CMAKE_SOURCE_DIR}/cmake
+      ${CMAKE_SOURCE_DIR}/cmake/vala)
+include(MacroOptionalAddSubdirectory)
+
+# Vala requirements
+find_package (Vala REQUIRED)
+include (FindVala)
+include (UseVala)
+
+add_subdirectory (src)
+add_subdirectory (test)

vala/gmodule/cmake/MacroOptionalAddSubdirectory.cmake

@@ -0,0 +1,31 @@
+# - MACRO_OPTIONAL_ADD_SUBDIRECTORY() combines ADD_SUBDIRECTORY() with an OPTION()
+# MACRO_OPTIONAL_ADD_SUBDIRECTORY( <dir> )
+# If you use MACRO_OPTIONAL_ADD_SUBDIRECTORY() instead of ADD_SUBDIRECTORY(),
+# this will have two effects
+# 1 - CMake will not complain if the directory doesn't exist
+#     This makes sense if you want to distribute just one of the subdirs
+#     in a source package, e.g. just one of the subdirs in kdeextragear.
+# 2 - If the directory exists, it will offer an option to skip the 
+#     subdirectory.
+#     This is useful if you want to compile only a subset of all
+#     directories.
+
+# Copyright (c) 2007, Alexander Neundorf, <neundorf@kde.org>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+
+MACRO (MACRO_OPTIONAL_ADD_SUBDIRECTORY _dir )
+   GET_FILENAME_COMPONENT(_fullPath ${_dir} ABSOLUTE)
+   IF(EXISTS ${_fullPath})
+      IF(${ARGC} EQUAL 2)
+        OPTION(BUILD_${_dir} "Build directory ${_dir}" ${ARGV1})
+      ELSE(${ARGC} EQUAL 2)
+        OPTION(BUILD_${_dir} "Build directory ${_dir}" TRUE)
+      ENDIF(${ARGC} EQUAL 2)
+      IF(BUILD_${_dir})
+         ADD_SUBDIRECTORY(${_dir})
+      ENDIF(BUILD_${_dir})
+   ENDIF(EXISTS ${_fullPath})
+ENDMACRO (MACRO_OPTIONAL_ADD_SUBDIRECTORY)

vala/gmodule/cmake/vala/FindVala.cmake

@@ -0,0 +1,69 @@
+##
+# Find module for the Vala compiler (valac)
+#
+# This module determines wheter a Vala compiler is installed on the current
+# system and where its executable is.
+#
+# Call the module using "find_package(Vala) from within your CMakeLists.txt.
+#
+# The following variables will be set after an invocation:
+#
+#  VALA_FOUND       Whether the vala compiler has been found or not
+#  VALA_EXECUTABLE  Full path to the valac executable if it has been found
+#  VALA_VERSION     Version number of the available valac
+#  VALA_USE_FILE    Include this file to define the vala_precompile function
+##
+
+##
+# Copyright 2009-2010 Jakob Westhoff. All rights reserved.
+# Copyright 2010-2011 Daniel Pfeifer
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+#    1. Redistributions of source code must retain the above copyright notice,
+#       this list of conditions and the following disclaimer.
+#
+#    2. Redistributions in binary form must reproduce the above copyright notice,
+#       this list of conditions and the following disclaimer in the documentation
+#       and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY JAKOB WESTHOFF ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+# EVENT SHALL JAKOB WESTHOFF OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# The views and conclusions contained in the software and documentation are those
+# of the authors and should not be interpreted as representing official policies,
+# either expressed or implied, of Jakob Westhoff
+##
+
+# Search for the valac executable in the usual system paths.
+find_program(VALA_EXECUTABLE valac)
+mark_as_advanced(VALA_EXECUTABLE)
+
+# Determine the valac version
+if(VALA_EXECUTABLE)
+    execute_process(COMMAND ${VALA_EXECUTABLE} "--version"
+                    OUTPUT_VARIABLE VALA_VERSION
+                    OUTPUT_STRIP_TRAILING_WHITESPACE)
+    string(REPLACE "Vala " "" VALA_VERSION "${VALA_VERSION}")
+endif(VALA_EXECUTABLE)
+
+# Handle the QUIETLY and REQUIRED arguments, which may be given to the find call.
+# Furthermore set VALA_FOUND to TRUE if Vala has been found (aka.
+# VALA_EXECUTABLE is set)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Vala
+    REQUIRED_VARS VALA_EXECUTABLE
+    VERSION_VAR VALA_VERSION)
+
+set(VALA_USE_FILE "${CMAKE_CURRENT_LIST_DIR}/UseVala.cmake")
+

vala/gmodule/cmake/vala/UseVala.cmake

@@ -0,0 +1,180 @@
+##
+# Compile vala files to their c equivalents for further processing.
+#
+# The "vala_precompile" function takes care of calling the valac executable on
+# the given source to produce c files which can then be processed further using
+# default cmake functions.
+#
+# The first parameter provided is a variable, which will be filled with a list
+# of c files outputted by the vala compiler. This list can than be used in
+# conjuction with functions like "add_executable" or others to create the
+# neccessary compile rules with CMake.
+#
+# The following sections may be specified afterwards to provide certain options
+# to the vala compiler:
+#
+# SOURCES
+#   A list of .vala files to be compiled. Please take care to add every vala
+#   file belonging to the currently compiled project or library as Vala will
+#   otherwise not be able to resolve all dependencies.
+#
+# PACKAGES
+#   A list of vala packages/libraries to be used during the compile cycle. The
+#   package names are exactly the same, as they would be passed to the valac
+#   "--pkg=" option.
+#
+# OPTIONS
+#   A list of optional options to be passed to the valac executable. This can be
+#   used to pass "--thread" for example to enable multi-threading support.
+#
+# CUSTOM_VAPIS
+#   A list of custom vapi files to be included for compilation. This can be
+#   useful to include freshly created vala libraries without having to install
+#   them in the system.
+#
+# GENERATE_VAPI
+#   Pass all the needed flags to the compiler to create an internal vapi for
+#   the compiled library. The provided name will be used for this and a
+#   <provided_name>.vapi file will be created.
+#
+# GENERATE_HEADER
+#   Let the compiler generate a header file for the compiled code. There will
+#   be a header file as well as an internal header file being generated called
+#   <provided_name>.h and <provided_name>_internal.h
+#
+# The following call is a simple example to the vala_precompile macro showing
+# an example to every of the optional sections:
+#
+#   find_package(Vala "0.12" REQUIRED)
+#   inlcude(${VALA_USE_FILE})
+#
+#   vala_precompile(VALA_C
+#     SOURCES
+#       source1.vala
+#       source2.vala
+#       source3.vala
+#     PACKAGES
+#       gtk+-2.0
+#       gio-1.0
+#       posix
+#     DIRECTORY
+#       gen
+#     OPTIONS
+#       --thread
+#     CUSTOM_VAPIS
+#       some_vapi.vapi
+#     GENERATE_VAPI
+#       myvapi
+#     GENERATE_HEADER
+#       myheader
+#     )
+#
+# Most important is the variable VALA_C which will contain all the generated c
+# file names after the call.
+##
+
+##
+# Copyright 2009-2010 Jakob Westhoff. All rights reserved.
+# Copyright 2010-2011 Daniel Pfeifer
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+#    1. Redistributions of source code must retain the above copyright notice,
+#       this list of conditions and the following disclaimer.
+#
+#    2. Redistributions in binary form must reproduce the above copyright notice,
+#       this list of conditions and the following disclaimer in the documentation
+#       and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY JAKOB WESTHOFF ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+# EVENT SHALL JAKOB WESTHOFF OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# The views and conclusions contained in the software and documentation are those
+# of the authors and should not be interpreted as representing official policies,
+# either expressed or implied, of Jakob Westhoff
+##
+
+include(CMakeParseArguments)
+
+function(vala_precompile output)
+    cmake_parse_arguments(ARGS "" "DIRECTORY;GENERATE_HEADER;GENERATE_VAPI"
+        "SOURCES;PACKAGES;OPTIONS;CUSTOM_VAPIS" ${ARGN})
+
+    if(ARGS_DIRECTORY)
+        set(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/${ARGS_DIRECTORY})
+    else(ARGS_DIRECTORY)
+        set(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    endif(ARGS_DIRECTORY)
+    include_directories(${DIRECTORY})
+    set(vala_pkg_opts "")
+    foreach(pkg ${ARGS_PACKAGES})
+        list(APPEND vala_pkg_opts "--pkg=${pkg}")
+    endforeach(pkg ${ARGS_PACKAGES})
+    set(in_files "")
+    set(out_files "")
+    foreach(src ${ARGS_SOURCES} ${ARGS_UNPARSED_ARGUMENTS})
+        list(APPEND in_files "${CMAKE_CURRENT_SOURCE_DIR}/${src}")
+        string(REPLACE ".vala" ".c" src ${src})
+        string(REPLACE ".gs" ".c" src ${src})
+        set(out_file "${DIRECTORY}/${src}")
+        list(APPEND out_files "${DIRECTORY}/${src}")
+    endforeach(src ${ARGS_SOURCES} ${ARGS_UNPARSED_ARGUMENTS})
+
+    set(custom_vapi_arguments "")
+    if(ARGS_CUSTOM_VAPIS)
+        foreach(vapi ${ARGS_CUSTOM_VAPIS})
+            if(${vapi} MATCHES ${CMAKE_SOURCE_DIR} OR ${vapi} MATCHES ${CMAKE_BINARY_DIR})
+                list(APPEND custom_vapi_arguments ${vapi})
+            else (${vapi} MATCHES ${CMAKE_SOURCE_DIR} OR ${vapi} MATCHES ${CMAKE_BINARY_DIR})
+                list(APPEND custom_vapi_arguments ${CMAKE_CURRENT_SOURCE_DIR}/${vapi})
+            endif(${vapi} MATCHES ${CMAKE_SOURCE_DIR} OR ${vapi} MATCHES ${CMAKE_BINARY_DIR})
+        endforeach(vapi ${ARGS_CUSTOM_VAPIS})
+    endif(ARGS_CUSTOM_VAPIS)
+
+    set(vapi_arguments "")
+    if(ARGS_GENERATE_VAPI)
+        list(APPEND out_files "${DIRECTORY}/${ARGS_GENERATE_VAPI}.vapi")
+        set(vapi_arguments "--internal-vapi=${ARGS_GENERATE_VAPI}.vapi")
+
+        # Header and internal header is needed to generate internal vapi
+        if (NOT ARGS_GENERATE_HEADER)
+            set(ARGS_GENERATE_HEADER ${ARGS_GENERATE_VAPI})
+        endif(NOT ARGS_GENERATE_HEADER)
+    endif(ARGS_GENERATE_VAPI)
+
+    set(header_arguments "")
+    if(ARGS_GENERATE_HEADER)
+        list(APPEND out_files "${DIRECTORY}/${ARGS_GENERATE_HEADER}.h")
+        list(APPEND out_files "${DIRECTORY}/${ARGS_GENERATE_HEADER}_internal.h")
+        list(APPEND header_arguments "--header=${DIRECTORY}/${ARGS_GENERATE_HEADER}.h")
+        list(APPEND header_arguments "--internal-header=${DIRECTORY}/${ARGS_GENERATE_HEADER}_internal.h")
+    endif(ARGS_GENERATE_HEADER)
+
+    add_custom_command(OUTPUT ${out_files}
+    COMMAND
+        ${VALA_EXECUTABLE}
+    ARGS
+        "-C"
+        ${header_arguments}
+        ${vapi_arguments}
+        "-b" ${CMAKE_CURRENT_SOURCE_DIR}
+        "-d" ${DIRECTORY}
+        ${vala_pkg_opts}
+        ${ARGS_OPTIONS}
+        ${in_files}
+        ${custom_vapi_arguments}
+    DEPENDS
+        ${in_files}
+        ${ARGS_CUSTOM_VAPIS}
+    )
+    set(${output} ${out_files} PARENT_SCOPE)
+endfunction(vala_precompile)

vala/gmodule/test/CMakeLists.txt

@@ -0,0 +1,25 @@
+find_package (PkgConfig REQUIRED)
+pkg_check_modules (GLIB2 REQUIRED glib-2.0)
+pkg_check_modules (GOBJECT2 REQUIRED gobject-2.0)
+
+include_directories (${GLIB2_INCLUDE_DIRS})
+link_directories (${GLIB2_LIBRARY_DIRS})
+include_directories (${GOBJECT2_INCLUDE_DIRS})
+link_directories (${GOBJECT2_LIBRARY_DIRS})
+if (CMAKE_COMPILER_IS_GNUCC)
+  add_definitions (${GLIB2_CFLAGS_OTHER})
+  add_definitions (${GOBJECT2_CFLAGS_OTHER})
+endif ()
+
+FILE (GLOB GModuleSources RELATIVE ${PROJECT_SOURCE_DIR}/test *.vala)
+vala_precompile (VALA_C ${GModuleSources}
+                 PACKAGES gtk+-3.0
+                 OPTIONS ${VALAC_OPTIONS}
+                 CUSTOM_VAPIS
+                 GENERATE_VAPI gmodule-test
+                 GENERATE_HEADER gmodule-test
+                )
+
+# add the executable
+add_executable (gmodule-test ${VALA_C})
+target_link_libraries (gmodule-test ${GLIB2_LIBRARIES} ${GOBJECT2_LIBRARIES})

vala/gmodule/test/main.vala

@@ -0,0 +1,7 @@
+using GLib;
+
+void main (string[] args) {
+  // stdout.printf ("Hello world!\n");
+
+  var m = new GLib.Module ();
+}