+++ /dev/null
-/* This file is part of the Linux Trace Toolkit trace reading library
- * Copyright (C) 2003-2004 Michel Dagenais
- * 2005 Mathieu Desnoyers
- *
- * 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.
- */
-
-#ifndef TRACE_H
-#define TRACE_H
-
-#include <ltt/ltt.h>
-#include <ltt/ltt-private.h>
-#include <stdint.h>
-#include <glib.h>
-
-struct LttTrace {
- GQuark pathname; //the pathname of the trace
- //LttSystemDescription * system_description;//system description
-
- guint num_cpu;
-
- guint32 arch_type;
- guint32 arch_variant;
- guint8 arch_size;
- guint8 ltt_major_version;
- guint8 ltt_minor_version;
- guint8 flight_recorder;
- guint32 freq_scale;
- uint64_t start_freq;
- uint64_t start_tsc;
- uint64_t start_monotonic;
- double drift;
- double offset;
- LttTime start_time;
- LttTime start_time_from_tsc;
- gboolean is_live; /* Flag indicating that read trace is currently being recorded */
- LttTime live_safe_timestamp; /* In a live trace, timestamp were all data should be readable */
-
- GData *tracefiles; /*tracefiles groups*/
-};
-
-static inline guint ltt_trace_get_num_cpu(LttTrace *t)
-{
- return t->num_cpu;
-}
-
-/* A trace is specified as a pathname to the directory containing all the
- associated data (control tracefiles, per cpu tracefiles, event
- descriptions...).
-
- When a trace is closed, all the associated facilities, types and fields
- are released as well.
-
- return value is NULL if there is an error when opening the trace.
-
- */
-
-LttTrace *ltt_trace_open(const gchar *pathname);
-
-/* Same as ltt_trace_open but open the trace in live mode */
-LttTrace *ltt_trace_open_live(const gchar *pathname);
-
-
-/* copy reopens a trace
- *
- * return value NULL if error while opening the trace
- */
-LttTrace *ltt_trace_copy(LttTrace *self);
-
-static inline GQuark ltt_trace_name(const LttTrace *t)
-{
- return t->pathname;
-}
-/* Update the informations concerning a trace, normally a live one */
-int ltt_trace_update(LttTrace *trace);
-
-void ltt_trace_close(LttTrace *t);
-
-LttSystemDescription *ltt_trace_system_description(LttTrace *t);
-
-
-/* Get the start time and end time of the trace */
-
-void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end);
-
-
-/* Get the name of a tracefile */
-
-static inline GQuark ltt_tracefile_name(const LttTracefile *tf)
-{
- return tf->name;
-}
-
-static inline GQuark ltt_tracefile_long_name(const LttTracefile *tf)
-{
- return tf->long_name;
-}
-
-/* get the cpu number of the tracefile */
-
-static inline guint ltt_tracefile_cpu(LttTracefile *tf)
-{
- return tf->cpu_num;
-}
-
-/* For usertrace */
-static inline guint ltt_tracefile_tid(LttTracefile *tf)
-{
- return tf->tid;
-}
-
-static inline guint ltt_tracefile_pgid(LttTracefile *tf)
-{
- return tf->pgid;
-}
-
-static inline guint64 ltt_tracefile_creation(LttTracefile *tf)
-{
- return tf->creation;
-}
-
-static inline LttTrace *ltt_tracefile_get_trace(LttTracefile *tf)
-{
- return tf->trace;
-}
-
-/* Get the number of blocks in the tracefile */
-
-static inline guint ltt_tracefile_block_number(LttTracefile *tf)
-{
- return tf->num_blocks;
-}
-
-
-/* Seek to the first event of the trace with time larger or equal to time */
-
-int ltt_tracefile_seek_time(LttTracefile *t, LttTime time);
-
-
-int ltt_tracefile_get_current_position(const LttTracefile *tf, LttEventPosition *ep);
-
-/* Seek to the first event with position equal or larger to ep */
-
-int ltt_tracefile_seek_position(LttTracefile *t,
- const LttEventPosition *ep);
-
-/* Read the next event */
-
-int ltt_tracefile_read(LttTracefile *t);
-
-/* ltt_tracefile_read cut down in pieces */
-int ltt_tracefile_read_seek(LttTracefile *t);
-int ltt_tracefile_read_update_event(LttTracefile *t);
-int ltt_tracefile_read_op(LttTracefile *t);
-
-/* Get the current event of the tracefile : valid until the next read */
-LttEvent *ltt_tracefile_get_event(LttTracefile *tf);
-
-/* get the data type size and endian type of the local machine */
-
-void getDataEndianType(LttArchSize * size, LttArchEndian * endian);
-
-/* get an integer number */
-gint64 get_int(gboolean reverse_byte_order, gint size, void *data);
-
-/* get the node name of the system */
-
-gchar * ltt_trace_system_description_node_name (LttSystemDescription * s);
-
-
-/* get the domain name of the system */
-
-gchar * ltt_trace_system_description_domain_name (LttSystemDescription * s);
-
-
-/* get the description of the system */
-
-gchar * ltt_trace_system_description_description (LttSystemDescription * s);
-
-
-/* get the NTP start time of the trace */
-
-LttTime ltt_trace_start_time(LttTrace *t);
-
-/* get the monotonic start time of the trace */
-
-LttTime ltt_trace_start_time_monotonic(LttTrace *t);
-
-void get_absolute_pathname(const gchar *pathname, gchar * abs_pathname);
-
-/* May return a NULL tracefile group */
-GData **ltt_trace_get_tracefiles_groups(LttTrace *trace);
-
-typedef void (*ForEachTraceFileFunc)(LttTracefile *tf, gpointer func_args);
-
-struct compute_tracefile_group_args {
- ForEachTraceFileFunc func;
- gpointer func_args;
-};
-
-void compute_tracefile_group(GQuark key_id,
- GArray *group,
- struct compute_tracefile_group_args *args);
-
-
-gint64 ltt_get_int(gboolean reverse_byte_order, gint size, void *data);
-
-guint64 ltt_get_uint(gboolean reverse_byte_order, gint size, void *data);
-
-guint64 tsc_to_uint64(guint32 freq_scale, uint64_t start_freq, guint64 tsc);
-
-LttTime ltt_interpolate_time_from_tsc(LttTracefile *tf, guint64 tsc);
-
-/* Set to enable event debugging output */
-void ltt_event_debug(int state);
-
-/* A structure representing the version number of the trace */
-struct LttTraceVersion {
- guint8 ltt_major_version;
- guint8 ltt_minor_version;
-};
-
-/* To get the version number of a trace */
-int ltt_get_trace_version(const gchar *pathname, struct LttTraceVersion * version_number);
-
-#endif // TRACE_H
projects / lttv.git / blobdiff