libsysprof-analyze: pre-hash symbols for faster comparisons

src/libsysprof-analyze/sysprof-symbol-private.h

@@ -29,6 +29,8 @@ struct _SysprofSymbol
 {
   GObject parent_instance;
 
+  guint hash;
+
   GRefString *name;
   GRefString *binary_path;
   GRefString *binary_nick;
@@ -43,4 +45,17 @@ SysprofSymbol *_sysprof_symbol_new (GRefString     *name,
                                     SysprofAddress  begin_address,
                                     SysprofAddress  end_address);
 
+static inline gboolean
+_sysprof_symbol_equal (const SysprofSymbol *a,
+                       const SysprofSymbol *b)
+{
+  if (a == b)
+    return TRUE;
+
+  if (a->hash != b->hash)
+    return FALSE;
+
+  return strcmp (a->name, b->name) == 0;
+}
+
 G_END_DECLS

src/libsysprof-analyze/sysprof-symbol.c

@@ -144,6 +144,14 @@ _sysprof_symbol_new (GRefString     *name,
   self->binary_nick = binary_nick;
   self->begin_address = begin_address;
   self->end_address = end_address;
+  self->hash = g_str_hash (name);
 
   return self;
 }
+
+gboolean
+sysprof_symbol_equal (const SysprofSymbol *a,
+                      const SysprofSymbol *b)
+{
+  return _sysprof_symbol_equal (a, b);
+}