1 files changed, 317 insertions, 0 deletions
diff --git a/src/terminal-libgsystem.hh b/src/terminal-libgsystem.hh
new file mode 100644
index 0000000..370cb28
--- /dev/null
+++ b/src/terminal-libgsystem.hh
@@ -0,0 +1,317 @@
+/*
+ * 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) = nullptr;                                      \
+    }                                                      \
+  } 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 %nullptr-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(GDateTime*, gs_local_date_time_unref, g_date_time_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GDir*, gs_local_dir_close, g_dir_close)
+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(GKeyFile*, gs_local_key_file_unref, g_key_file_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GList*, gs_local_list_free, g_list_free)
+GS_DEFINE_CLEANUP_FUNCTION0(GMatchInfo*, gs_local_match_info_free, g_match_info_free)
+GS_DEFINE_CLEANUP_FUNCTION0(GObject*, gs_local_obj_unref, g_object_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GOptionContext*, gs_local_option_context_free, g_option_context_free)
+GS_DEFINE_CLEANUP_FUNCTION0(GPtrArray*, gs_local_ptrarray_unref, g_ptr_array_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GRegex*, gs_local_regex_unref, g_regex_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GSettingsSchema*, gs_local_settings_schema_unref, g_settings_schema_unref)
+GS_DEFINE_CLEANUP_FUNCTION0(GSettingsSchemaKey*, gs_local_settings_schema_key_unref, g_settings_schema_key_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_FUNCTION0(GVariantType*, gs_local_variant_type_free, g_variant_type_free)
+
+GS_DEFINE_CLEANUP_FUNCTION(char**, gs_local_strfreev, g_strfreev)
+GS_DEFINE_CLEANUP_FUNCTION(void*, gs_local_free, g_free)
+
+/* special */
+
+static inline void gs_local_gstring_free (void *v) \
+{                                                  \
+  if (*(GString**)v)                               \
+    g_string_free (*(GString**)v, TRUE);           \
+}
+
+/**
+ * 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
+ * %nullptr.
+ */
+#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
+ * %nullptr.
+ */
+#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_free_variant_type:
+ *
+ * Call g_variant_type_free() on a variable location when it goes out of
+ * scope.
+ */
+#define gs_free_variant_type __attribute__ ((cleanup(gs_local_variant_type_free)))
+
+/**
+ * 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
+ * %nullptr.
+
+ */
+#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
+ * %nullptr.
+
+ */
+#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 %nullptr.
+ */
+#define gs_unref_hashtable __attribute__ ((cleanup(gs_local_hashtable_unref)))
+
+/**
+ * gs_unref_key_file:
+ *
+ * Call g_key_file_unref() on a variable location when it goes out
+ * of scope.  Note that unlike g_key_file_unref(), the variable may
+ * be %nullptr.
+ */
+#define gs_unref_key_file __attribute__ ((cleanup(gs_local_key_file_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 %nullptr.
+ */
+#define gs_free_checksum __attribute__ ((cleanup(gs_local_checksum_free)))
+
+/**
+ * gs_unref_date_time:
+ *
+ * Call g_date_time_free() on a variable location when it goes out
+ * of scope.  Note that unlike g_date_time_free(), the variable may
+ * be %nullptr.
+ */
+#define gs_unref_date_time __attribute__ ((cleanup(gs_local_date_time_unref)))
+
+/**
+ * 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 %nullptr.
+ */
+#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)))
+
+/**
+ * gs_free_list:
+ *
+ * Call g_list_free() on a variable location when it goes out of scope.
+ */
+#define gs_free_list __attribute__ ((cleanup(gs_local_list_free)))
+
+/**
+ * gs_unref_regex:
+ *
+ * Call g_regex_unref() on a variable location when it goes out of
+ * scope.  Note that unlike g_regex_unref(), the variable may be
+ * %nullptr.
+
+ */
+#define gs_unref_regex __attribute__ ((cleanup(gs_local_regex_unref)))
+
+/**
+ * gs_free_match_info:
+ *
+ * Call g_regex_unref() on a variable location when it goes out of
+ * scope.  Note that unlike g_regex_unref(), the variable may be
+ * %nullptr.
+
+ */
+#define gs_free_match_info __attribute__ ((cleanup(gs_local_match_info_free)))
+
+/**
+ * gs_unref_settings_schema:
+ *
+ * Call g_settings_schema_unref() on a variable location when it goes out of
+ * scope.  Note that unlike g_settings_schema_unref(), the variable may be
+ * %nullptr.
+
+ */
+#define gs_unref_settings_schema __attribute__ ((cleanup(gs_local_settings_schema_unref)))
+
+/**
+ * gs_unref_settings_schema_source:
+ *
+ * Call g_settings_schema_source_unref() on a variable location when it goes out of
+ * scope.  Note that unlike g_settings_schema_source_unref(), the variable may be
+ * %nullptr.
+
+ */
+#define gs_unref_settings_schema_source __attribute__ ((cleanup(gs_local_settings_schema_source_unref)))
+
+/**
+ * gs_unref_settings_schema_key:
+ *
+ * Call g_settings_schema_key_unref() on a variable location when it goes out of
+ * scope.  Note that unlike g_settings_schema_key_unref(), the variable may be
+ * %nullptr.
+
+ */
+#define gs_unref_settings_schema_key __attribute__ ((cleanup(gs_local_settings_schema_key_unref)))
+
+/**
+ * gs_free_gstring:
+ *
+ * Call g_string_free(TRUE) on a variable location when it goes out
+ * of scope.  Note that unlike g_string_free(), the variable may
+ * be %nullptr.
+ */
+#define gs_free_gstring __attribute__ ((cleanup(gs_local_gstring_free)))
+
+/**
+ * gs_free_option_context:
+ *
+ * Call g_regex_unref() on a variable location when it goes out of
+ * scope.  Note that unlike g_option_context_free(), the variable may be
+ * %NULL.
+
+ */
+#define gs_free_option_context __attribute__ ((cleanup(gs_local_option_context_free)))
+
+/**
+ * gs_close_dir:
+ *
+ * Call g_dir_close() on a variable location when it goes out of
+ * scope.
+
+ */
+#define gs_close_dir __attribute__ ((cleanup(gs_local_dir_close)))
+
+static inline void gs_local_fd_close (void *v)
+{
+  auto fd = *reinterpret_cast<int*>(v);
+  if (fd != -1) {
+    auto const errsv = errno;
+    close(fd);
+    errno = errsv;
+  }
+}
+
+/**
+ * gs_free_close:
+ *
+ * Call close() on a variable location when it goes out of
+ * scope.
+
+ */
+#define gs_close_fd __attribute__ ((cleanup(gs_local_fd_close)))
+
+G_END_DECLS
+
+#endif