Import Upstream version 2.72.4

2023-07-04 11:23:22 +02:00 · 2023-07-04 11:23:22 +02:00 · 4ef3ff9793
commit 4ef3ff9793
2003 changed files with 1332420 additions and 0 deletions
--- a/glib/grefcount.h
+++ b/glib/grefcount.h
@ -0,0 +1,123 @@
+/* grefcount.h: Reference counting
+ *
+ * Copyright 2018  Emmanuele Bassi
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GREFCOUNT_H__
+#define __GREFCOUNT_H__
+
+#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION)
+#error "Only <glib.h> can be included directly."
+#endif
+
+#include <glib/gatomic.h>
+#include <glib/gtypes.h>
+
+G_BEGIN_DECLS
+
+GLIB_AVAILABLE_IN_2_58
+void            g_ref_count_init                (grefcount       *rc);
+GLIB_AVAILABLE_IN_2_58
+void            g_ref_count_inc                 (grefcount       *rc);
+GLIB_AVAILABLE_IN_2_58
+gboolean        g_ref_count_dec                 (grefcount       *rc);
+GLIB_AVAILABLE_IN_2_58
+gboolean        g_ref_count_compare             (grefcount       *rc,
+                                                 gint             val);
+
+GLIB_AVAILABLE_IN_2_58
+void            g_atomic_ref_count_init         (gatomicrefcount *arc);
+GLIB_AVAILABLE_IN_2_58
+void            g_atomic_ref_count_inc          (gatomicrefcount *arc);
+GLIB_AVAILABLE_IN_2_58
+gboolean        g_atomic_ref_count_dec          (gatomicrefcount *arc);
+GLIB_AVAILABLE_IN_2_58
+gboolean        g_atomic_ref_count_compare      (gatomicrefcount *arc,
+                                                 gint             val);
+
+/* On GCC we can use __extension__ to inline the API without using
+ * ancillary functions; we only do this when disabling checks, as
+ * it disables warnings when saturating the reference counters
+ */
+#if defined(__GNUC__) && defined(G_DISABLE_CHECKS)
+
+# define g_ref_count_init(rc) \
+  (G_GNUC_EXTENSION ({ \
+    G_STATIC_ASSERT (sizeof *(rc) == sizeof (grefcount)); \
+    (void) (0 ? *(rc) ^ *(rc) : 1); \
+    *(rc) = -1; \
+  }))
+
+# define g_ref_count_inc(rc) \
+  (G_GNUC_EXTENSION ({ \
+    G_STATIC_ASSERT (sizeof *(rc) == sizeof (grefcount)); \
+    (void) (0 ? *(rc) ^ *(rc) : 1); \
+    if (*(rc) == G_MININT) ; else { \
+      *(rc) -= 1; \
+    } \
+  }))
+
+# define g_ref_count_dec(rc) \
+  (G_GNUC_EXTENSION ({ \
+    G_STATIC_ASSERT (sizeof *(rc) == sizeof (grefcount)); \
+    grefcount __rc = *(rc); \
+    __rc += 1; \
+    if (__rc == 0) ; else { \
+      *(rc) = __rc; \
+    } \
+    (gboolean) (__rc == 0); \
+  }))
+
+# define g_ref_count_compare(rc,val) \
+  (G_GNUC_EXTENSION ({ \
+    G_STATIC_ASSERT (sizeof *(rc) == sizeof (grefcount)); \
+    (void) (0 ? *(rc) ^ (val) : 1); \
+    (gboolean) (*(rc) == -(val)); \
+  }))
+
+# define g_atomic_ref_count_init(rc) \
+  (G_GNUC_EXTENSION ({ \
+    G_STATIC_ASSERT (sizeof *(rc) == sizeof (gatomicrefcount)); \
+    (void) (0 ? *(rc) ^ *(rc) : 1); \
+    *(rc) = 1; \
+  }))
+
+# define g_atomic_ref_count_inc(rc) \
+  (G_GNUC_EXTENSION ({ \
+    G_STATIC_ASSERT (sizeof *(rc) == sizeof (gatomicrefcount)); \
+    (void) (0 ? *(rc) ^ *(rc) : 1); \
+    (void) (g_atomic_int_get (rc) == G_MAXINT ? 0 : g_atomic_int_inc ((rc))); \
+  }))
+
+# define g_atomic_ref_count_dec(rc) \
+  (G_GNUC_EXTENSION ({ \
+    G_STATIC_ASSERT (sizeof *(rc) == sizeof (gatomicrefcount)); \
+    (void) (0 ? *(rc) ^ *(rc) : 1); \
+    g_atomic_int_dec_and_test ((rc)); \
+  }))
+
+# define g_atomic_ref_count_compare(rc,val) \
+  (G_GNUC_EXTENSION ({ \
+    G_STATIC_ASSERT (sizeof *(rc) == sizeof (gatomicrefcount)); \
+    (void) (0 ? *(rc) ^ (val) : 1); \
+    (gboolean) (g_atomic_int_get (rc) == (val)); \
+  }))
+
+#endif /* __GNUC__ && G_DISABLE_CHECKS */
+
+G_END_DECLS
+
+#endif /* __GREFCOUNT_H__ */