[daemon-fix] fixed querying about name information

[platform/upstream/dbus.git] / dbus / dbus-string-private.h

diff --git a/dbus/dbus-string-private.h b/dbus/dbus-string-private.h
index a2fcd03..2e6de90 100644 (file)
--- a/dbus/dbus-string-private.h
+++ b/dbus/dbus-string-private.h
@@ -1,5 +1,5 @@
-/* -*- mode: C; c-file-style: "gnu" -*- */
-/* dbus-string-private.h String utility class (internal to D-BUS implementation)
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+/* dbus-string-private.h String utility class (internal to D-Bus implementation)
  * 
  * Copyright (C) 2002, 2003  Red Hat, Inc.
  *
@@ -17,15 +17,14 @@
  * 
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  *
  */
 
 #ifndef DBUS_STRING_PRIVATE_H
 #define DBUS_STRING_PRIVATE_H
 
-#include <config.h>
-
+#include <dbus/dbus-internals.h>
 #include <dbus/dbus-memory.h>
 #include <dbus/dbus-types.h>
 
@@ -46,13 +45,89 @@ typedef struct
   unsigned char *str;            /**< String data, plus nul termination */
   int            len;            /**< Length without nul */
   int            allocated;      /**< Allocated size of data */
-  int            max_length;     /**< Max length of this string, without nul byte */
   unsigned int   constant : 1;   /**< String data is not owned by DBusString */
   unsigned int   locked : 1;     /**< DBusString has been locked and can't be changed */
   unsigned int   invalid : 1;    /**< DBusString is invalid (e.g. already freed) */
   unsigned int   align_offset : 3; /**< str - align_offset is the actual malloc block */
 } DBusRealString;
 
+_DBUS_STATIC_ASSERT (sizeof (DBusRealString) == sizeof (DBusString));
+
+/**
+ * @defgroup DBusStringInternals DBusString implementation details
+ * @ingroup  DBusInternals
+ * @brief DBusString implementation details
+ *
+ * The guts of DBusString.
+ *
+ * @{
+ */
+
+/**
+ * The maximum length of a DBusString
+ */
+#define _DBUS_STRING_MAX_LENGTH (_DBUS_INT32_MAX - _DBUS_STRING_ALLOCATION_PADDING)
+
+/**
+ * Checks a bunch of assertions about a string object
+ *
+ * @param real the DBusRealString
+ */
+#define DBUS_GENERIC_STRING_PREAMBLE(real) \
+  do { \
+      (void) real; /* might be unused unless asserting */ \
+      _dbus_assert ((real) != NULL); \
+      _dbus_assert (!(real)->invalid); \
+      _dbus_assert ((real)->len >= 0); \
+      _dbus_assert ((real)->allocated >= 0); \
+      _dbus_assert ((real)->len <= ((real)->allocated - _DBUS_STRING_ALLOCATION_PADDING)); \
+      _dbus_assert ((real)->len <= _DBUS_STRING_MAX_LENGTH); \
+  } while (0)
+
+/**
+ * Checks assertions about a string object that needs to be
+ * modifiable - may not be locked or const. Also declares
+ * the "real" variable pointing to DBusRealString. 
+ * @param str the string
+ */
+#define DBUS_STRING_PREAMBLE(str) DBusRealString *real = (DBusRealString*) str; \
+  DBUS_GENERIC_STRING_PREAMBLE (real);                                          \
+  _dbus_assert (!(real)->constant);                                             \
+  _dbus_assert (!(real)->locked)
+
+/**
+ * Checks assertions about a string object that may be locked but
+ * can't be const. i.e. a string object that we can free.  Also
+ * declares the "real" variable pointing to DBusRealString.
+ *
+ * @param str the string
+ */
+#define DBUS_LOCKED_STRING_PREAMBLE(str) DBusRealString *real = (DBusRealString*) str; \
+  DBUS_GENERIC_STRING_PREAMBLE (real);                                                 \
+  _dbus_assert (!(real)->constant)
+
+/**
+ * Checks assertions about a string that may be const or locked.  Also
+ * declares the "real" variable pointing to DBusRealString.
+ * @param str the string.
+ */
+#define DBUS_CONST_STRING_PREAMBLE(str) const DBusRealString *real = (DBusRealString*) str; \
+  DBUS_GENERIC_STRING_PREAMBLE (real)
+
+/**
+ * Checks for ASCII blank byte
+ * @param c the byte
+ */
+#define DBUS_IS_ASCII_BLANK(c) ((c) == ' ' || (c) == '\t')
+
+/**
+ * Checks for ASCII whitespace byte
+ * @param c the byte
+ */
+#define DBUS_IS_ASCII_WHITE(c) ((c) == ' ' || (c) == '\t' || (c) == '\n' || (c) == '\r')
+
+/** @} */
+
 DBUS_END_DECLS
 
 #endif /* DBUS_STRING_PRIVATE_H */