ltt/ltt-types.h

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2004-2005 Mathieu Desnoyers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License Version 2.1 as published by the Free Software Foundation.
   7  *
   8  * This library is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public
  14  * License along with this library; if not, write to the
  15  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  16  * Boston, MA 02111-1307, USA.
  17  */
  18
  19 #ifndef LTT_TYPES_H
  20 #define LTT_TYPES_H
  21
  22 /* Set of functions to access the types portably, given the trace as parameter.
  23  * */
  24
  25 #include <ltt/ltt.h>
  26 #include <glib.h>
  27 #include <ltt/time.h>
  28
  29
  30 /*****************************************************************************
  31  *Function name
  32  *    ltt_get_int64        : get a 64 bits integer number
  33  *Input params
  34  *    ptr                  : pointer to the integer
  35  *Return value
  36  *    gint64               : a 64 bits integer
  37  *
  38  * Takes care of endianness
  39  *
  40  ****************************************************************************/
  41
  42 static inline gint64 ltt_get_int64(gboolean reverse_byte_order, void *ptr)
  43 {
  44   guint64 value = *(guint64*)ptr;
  45   return (gint64) (reverse_byte_order ? GUINT64_SWAP_LE_BE(value): value);
  46 }
  47
  48
  49 static inline guint64 ltt_get_uint64(gboolean reverse_byte_order, void *ptr)
  50 {
  51   guint64 value = *(guint64*)ptr;
  52   return (guint64) (reverse_byte_order ? GUINT64_SWAP_LE_BE(value): value);
  53 }
  54
  55 static inline gint32 ltt_get_int32(gboolean reverse_byte_order, void *ptr)
  56 {
  57   guint32 value = *(guint32*)ptr;
  58   return (gint32) (reverse_byte_order ? GUINT32_SWAP_LE_BE(value): value);
  59 }
  60
  61 static inline guint32 ltt_get_uint32(gboolean reverse_byte_order, void *ptr)
  62 {
  63   guint32 value = *(guint32*)ptr;
  64   return (guint32) (reverse_byte_order ? GUINT32_SWAP_LE_BE(value): value);
  65 }
  66
  67 static inline gint16 ltt_get_int16(gboolean reverse_byte_order, void *ptr)
  68 {
  69   guint16 value = *(guint16*)ptr;
  70   return (gint16) (reverse_byte_order ? GUINT16_SWAP_LE_BE(value): value);
  71 }
  72
  73 static inline guint16 ltt_get_uint16(gboolean reverse_byte_order, void *ptr)
  74 {
  75   guint16 value = *(guint16*)ptr;
  76   return (guint16) (reverse_byte_order ? GUINT16_SWAP_LE_BE(value): value);
  77 }
  78
  79 static inline LttTime ltt_get_time(gboolean reverse_byte_order, void *ptr)
  80 {
  81   LttTime output;
  82
  83   output.tv_sec = ltt_get_uint32(reverse_byte_order, ptr);
  84   ptr += sizeof(guint32);
  85   output.tv_nsec = ltt_get_uint32(reverse_byte_order, ptr);
  86
  87   return output;
  88 }
  89
  90 #endif // LTT_TYPES_H