+/* This file is part of the Linux Trace Toolkit viewer
+ * Copyright (C) 2007 Mathieu Desnoyers
+ *
+ * Complete rewrite from the original version made by XangXiu Yang.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License Version 2.1 as published by the Free Software Foundation.
+ *
+ * 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, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib.h>
#include <ltt/event.h>
+#include <ltt/ltt-types.h>
+#include <ltt/ltt-private.h>
+#include <ltt/marker.h>
+#include <ltt/marker-field.h>
/*****************************************************************************
*Function name
return ep->tracefile;
}
+/*****************************************************************************
+ * These functions extract data from an event after architecture specific
+ * conversions
+ ****************************************************************************/
+guint32 ltt_event_get_unsigned(LttEvent *e, struct marker_field *f)
+{
+ gboolean reverse_byte_order;
+
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
+ }
+
+ switch(f->size) {
+ case 1:
+ {
+ guint8 x = *(guint8 *)(e->data + f->offset);
+ return (guint32) x;
+ }
+ break;
+ case 2:
+ return (guint32)ltt_get_uint16(reverse_byte_order, e->data + f->offset);
+ break;
+ case 4:
+ return (guint32)ltt_get_uint32(reverse_byte_order, e->data + f->offset);
+ break;
+ case 8:
+ default:
+ g_critical("ltt_event_get_unsigned : field size %i unknown", f->size);
+ return 0;
+ break;
+ }
+}
+
+gint32 ltt_event_get_int(LttEvent *e, struct marker_field *f)
+{
+ gboolean reverse_byte_order;
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
+ }
+
+ switch(f->size) {
+ case 1:
+ {
+ gint8 x = *(gint8 *)(e->data + f->offset);
+ return (gint32) x;
+ }
+ break;
+ case 2:
+ return (gint32)ltt_get_int16(reverse_byte_order, e->data + f->offset);
+ break;
+ case 4:
+ return (gint32)ltt_get_int32(reverse_byte_order, e->data + f->offset);
+ break;
+ case 8:
+ default:
+ g_critical("ltt_event_get_int : field size %i unknown", f->size);
+ return 0;
+ break;
+ }
+}
+
+guint64 ltt_event_get_long_unsigned(LttEvent *e, struct marker_field *f)
+{
+ gboolean reverse_byte_order;
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
+ }
+
+ switch(f->size) {
+ case 1:
+ {
+ guint8 x = *(guint8 *)(e->data + f->offset);
+ return (guint64) x;
+ }
+ break;
+ case 2:
+ return (guint64)ltt_get_uint16(reverse_byte_order, e->data + f->offset);
+ break;
+ case 4:
+ return (guint64)ltt_get_uint32(reverse_byte_order, e->data + f->offset);
+ break;
+ case 8:
+ return ltt_get_uint64(reverse_byte_order, e->data + f->offset);
+ break;
+ default:
+ g_critical("ltt_event_get_long_unsigned : field size %i unknown", f->size);
+ return 0;
+ break;
+ }
+}
+
+gint64 ltt_event_get_long_int(LttEvent *e, struct marker_field *f)
+{
+ gboolean reverse_byte_order;
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
+ }
+
+ switch(f->size) {
+ case 1:
+ {
+ gint8 x = *(gint8 *)(e->data + f->offset);
+ return (gint64) x;
+ }
+ break;
+ case 2:
+ return (gint64)ltt_get_int16(reverse_byte_order, e->data + f->offset);
+ break;
+ case 4:
+ return (gint64)ltt_get_int32(reverse_byte_order, e->data + f->offset);
+ break;
+ case 8:
+ return ltt_get_int64(reverse_byte_order, e->data + f->offset);
+ break;
+ default:
+ g_critical("ltt_event_get_long_int : field size %i unknown", f->size);
+ return 0;
+ break;
+ }
+}
+
+#if 0
+float ltt_event_get_float(LttEvent *e, struct marker_field *f)
+{
+ gboolean reverse_byte_order;
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ g_assert(LTT_HAS_FLOAT(e->tracefile));
+ reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile);
+ }
+
+ g_assert(f->field_type.type_class == LTT_FLOAT && f->size == 4);
+
+ if(reverse_byte_order == 0) return *(float *)(e->data + f->offset);
+ else{
+ void *ptr = e->data + f->offset;
+ guint32 value = bswap_32(*(guint32*)ptr);
+ return *(float*)&value;
+ }
+}
+
+double ltt_event_get_double(LttEvent *e, struct marker_field *f)
+{
+ gboolean reverse_byte_order;
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ g_assert(LTT_HAS_FLOAT(e->tracefile));
+ reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile);
+ }
+
+ if(f->size == 4)
+ return ltt_event_get_float(e, f);
+
+ g_assert(f->field_type.type_class == LTT_FLOAT && f->size == 8);
+
+ if(reverse_byte_order == 0) return *(double *)(e->data + f->offset);
+ else {
+ void *ptr = e->data + f->offset;
+ guint64 value = bswap_64(*(guint64*)ptr);
+ return *(double*)&value;
+ }
+}
+#endif
+
+/*****************************************************************************
+ * The string obtained is only valid until the next read from
+ * the same tracefile.
+ ****************************************************************************/
+char *ltt_event_get_string(LttEvent *e, struct marker_field *f)
+{
+ g_assert(f->type == LTT_TYPE_STRING);
+
+ return (gchar*)g_strdup((gchar*)(e->data + f->offset));
+}
+
+
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