[gnome-terminal/gnome-3-8] build: Add cleanup functions

[Christian Persch <chpe src gnome org>]

commit 9de820a7951fa46d1ef0299f3e43fed67f0241a7
Author: Christian Persch <chpe gnome org>
Date:   Mon Oct 21 14:59:13 2013 +0200

    build: Add cleanup functions
    
    Since it's just using this one header from libgsystem for now, just copy the
    header file instead of using a git submodule.
    
    (cherry picked from commit e9cab814892fc5b697e7574a827ac4d5e16f2b3b)
    (cherry picked from commit 5283674716dd8b2cd94c4d95ee127cab81c76503)

 src/Makefile.am           |    5 ++
 src/terminal-libgsystem.h |  169 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 174 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index b45974a..ce5f4ca 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -48,6 +48,7 @@ gnome_terminal_server_SOURCES = \
        terminal-intl.h \
        terminal-i18n.c \
        terminal-i18n.h \
+       terminal-libgsystem.h \
        terminal-mdi-container.c \
        terminal-mdi-container.h \
        terminal-notebook.c \
@@ -158,6 +159,7 @@ gnome_terminal_client_SOURCES = \
        terminal-defines.h \
        terminal-i18n.c \
        terminal-i18n.h \
+       terminal-libgsystem.h \
        terminal-profiles-list.c \
        terminal-profiles-list.h \
        terminal-schemas.h \
@@ -203,6 +205,7 @@ gnome_terminal_SOURCES = \
        terminal-defines.h \
        terminal-i18n.c \
        terminal-i18n.h \
+       terminal-libgsystem.h \
        terminal-options.c \
        terminal-options.h \
        terminal-profiles-list.c \
@@ -247,6 +250,7 @@ libterminal_nautilus_la_SOURCES = \
        terminal-defines.h \
        terminal-i18n.c \
        terminal-i18n.h \
+       terminal-libgsystem.h \
        terminal-nautilus.c \
        $(NULL)
 
@@ -284,6 +288,7 @@ gnome_terminal_migration_SOURCES = \
        migration.c \
        terminal-debug.c \
        terminal-debug.h \
+       terminal-libgsystem.h \
        terminal-profiles-list.c \
        terminal-profiles-list.h \
        terminal-schemas.h \
diff --git a/src/terminal-libgsystem.h b/src/terminal-libgsystem.h
new file mode 100644
index 0000000..be24cab
--- /dev/null
+++ b/src/terminal-libgsystem.h
@@ -0,0 +1,169 @@
+/*
+ * Copyright © 2012 Colin Walters <walters verbum org>.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GSYSTEM_LOCAL_ALLOC_H__
+#define __GSYSTEM_LOCAL_ALLOC_H__
+
+#include <gio/gio.h>
+
+G_BEGIN_DECLS
+
+#define gs_transfer_out_value(outp, srcp) G_STMT_START {   \
+  if (outp)                                                \
+    {                                                      \
+      *(outp) = *(srcp);                                   \
+      *(srcp) = NULL;                                      \
+    }                                                      \
+  } G_STMT_END;
+
+#define GS_DEFINE_CLEANUP_FUNCTION(Type, name, func) \
+  static inline void name (void *v) \
+  { \
+    func (*(Type*)v); \
+  }
+
+#define GS_DEFINE_CLEANUP_FUNCTION0(Type, name, func) \
+  static inline void name (void *v) \
+  { \
+    if (*(Type*)v) \
+      func (*(Type*)v); \
+  }
+
+/* These functions shouldn't be invoked directly;
+ * they are stubs that:
+ * 1) Take a pointer to the location (typically itself a pointer).
+ * 2) Provide %NULL-safety where it doesn't exist already (e.g. g_object_unref)
+ */
+GS_DEFINE_CLEANUP_FUNCTION0(GArray*, gs_local_array_unref, g_array_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GBytes*, gs_local_bytes_unref, g_bytes_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GChecksum*, gs_local_checksum_free, g_checksum_free)
+GS_DEFINE_CLEANUP_FUNCTION0(GError*, gs_local_free_error, g_error_free)
+GS_DEFINE_CLEANUP_FUNCTION0(GHashTable*, gs_local_hashtable_unref, g_hash_table_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GObject*, gs_local_obj_unref, g_object_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GPtrArray*, gs_local_ptrarray_unref, g_ptr_array_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GVariant*, gs_local_variant_unref, g_variant_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GVariantBuilder*, gs_local_variant_builder_unref, g_variant_builder_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GVariantIter*, gs_local_variant_iter_free, g_variant_iter_free)
+
+GS_DEFINE_CLEANUP_FUNCTION(char**, gs_local_strfreev, g_strfreev)
+GS_DEFINE_CLEANUP_FUNCTION(void*, gs_local_free, g_free)
+
+/**
+ * gs_free:
+ *
+ * Call g_free() on a variable location when it goes out of scope.
+ */
+#define gs_free __attribute__ ((cleanup(gs_local_free)))
+
+/**
+ * gs_unref_object:
+ *
+ * Call g_object_unref() on a variable location when it goes out of
+ * scope.  Note that unlike g_object_unref(), the variable may be
+ * %NULL.
+ */
+#define gs_unref_object __attribute__ ((cleanup(gs_local_obj_unref)))
+
+/**
+ * gs_unref_variant:
+ *
+ * Call g_variant_unref() on a variable location when it goes out of
+ * scope.  Note that unlike g_variant_unref(), the variable may be
+ * %NULL.
+ */
+#define gs_unref_variant __attribute__ ((cleanup(gs_local_variant_unref)))
+
+/**
+ * gs_free_variant_iter:
+ *
+ * Call g_variant_iter_free() on a variable location when it goes out of
+ * scope.
+ */
+#define gs_free_variant_iter __attribute__ ((cleanup(gs_local_variant_iter_free)))
+
+/**
+ * gs_free_variant_builder:
+ *
+ * Call g_variant_builder_unref() on a variable location when it goes out of
+ * scope.
+ */
+#define gs_unref_variant_builder __attribute__ ((cleanup(gs_local_variant_builder_unref)))
+
+/**
+ * gs_unref_array:
+ *
+ * Call g_array_unref() on a variable location when it goes out of
+ * scope.  Note that unlike g_array_unref(), the variable may be
+ * %NULL.
+
+ */
+#define gs_unref_array __attribute__ ((cleanup(gs_local_array_unref)))
+
+/**
+ * gs_unref_ptrarray:
+ *
+ * Call g_ptr_array_unref() on a variable location when it goes out of
+ * scope.  Note that unlike g_ptr_array_unref(), the variable may be
+ * %NULL.
+
+ */
+#define gs_unref_ptrarray __attribute__ ((cleanup(gs_local_ptrarray_unref)))
+
+/**
+ * gs_unref_hashtable:
+ *
+ * Call g_hash_table_unref() on a variable location when it goes out
+ * of scope.  Note that unlike g_hash_table_unref(), the variable may
+ * be %NULL.
+ */
+#define gs_unref_hashtable __attribute__ ((cleanup(gs_local_hashtable_unref)))
+
+/**
+ * gs_free_checksum:
+ *
+ * Call g_checksum_free() on a variable location when it goes out
+ * of scope.  Note that unlike g_checksum_free(), the variable may
+ * be %NULL.
+ */
+#define gs_free_checksum __attribute__ ((cleanup(gs_local_checksum_free)))
+
+/**
+ * gs_unref_bytes:
+ *
+ * Call g_bytes_unref() on a variable location when it goes out
+ * of scope.  Note that unlike g_bytes_unref(), the variable may
+ * be %NULL.
+ */
+#define gs_unref_bytes __attribute__ ((cleanup(gs_local_bytes_unref)))
+
+/**
+ * gs_strfreev:
+ *
+ * Call g_strfreev() on a variable location when it goes out of scope.
+ */
+#define gs_strfreev __attribute__ ((cleanup(gs_local_strfreev)))
+
+/**
+ * gs_free_error:
+ *
+ * Call g_error_free() on a variable location when it goes out of scope.
+ */
+#define gs_free_error __attribute__ ((cleanup(gs_local_free_error)))
+
+G_END_DECLS
+
+#endif