/* This file is part of the Linux Trace Toolkit viewer
- * Copyright (C) 2009 Benjamin Poirier <benjamin.poirier@polymtl.ca>
+ * Copyright (C) 2009, 2010 Benjamin Poirier <benjamin.poirier@polymtl.ca>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License Version 2 as
- * published by the Free Software Foundation;
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 2.1 of the License, or (at
+ * your option) any later version.
*
- * This program 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 General Public License for more details.
+ * This program 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 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.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#define _ISOC99_SOURCE
-
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
-#include <linux/if_ether.h>
-#include <math.h>
#include <netinet/in.h>
+#include <stdarg.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "event_processing_lttng_standard.h"
-
-#ifndef g_info
-#define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
-#endif
+/* IPv4 Ethertype, taken from <linux/if_ether.h>, unlikely to change as it's
+ * defined by IANA: http://www.iana.org/assignments/ethernet-numbers
+ */
+#define ETH_P_IP 0x0800
// Functions common to all processing modules
-static void initProcessingLTTVStandard(SyncState* const syncState,
- LttvTracesetContext* const traceSetContext);
+static void initProcessingLTTVStandard(SyncState* const syncState, ...);
static void destroyProcessingLTTVStandard(SyncState* const syncState);
-static void finalizeProcessingLTTVStandard(SyncState* const syncState);
+static AllFactors* finalizeProcessingLTTVStandard(SyncState* const syncState);
static void printProcessingStatsLTTVStandard(SyncState* const syncState);
+static void writeProcessingGraphVariablesLTTVStandard(SyncState* const
+ syncState, const unsigned int i);
static void writeProcessingTraceTraceOptionsLTTVStandard(SyncState* const
syncState, const unsigned int i, const unsigned int j);
static void writeProcessingTraceTimeOptionsLTTVStandard(SyncState* const
syncState, const unsigned int i, const unsigned int j);
// Functions specific to this module
-static void registerProcessingLTTVStandard() __attribute__((constructor (102)));
static gboolean processEventLTTVStandard(void* hookData, void* callData);
static void partialDestroyProcessingLTTVStandard(SyncState* const syncState);
.finalizeProcessing= &finalizeProcessingLTTVStandard,
.printProcessingStats= &printProcessingStatsLTTVStandard,
.graphFunctions= {
+ .writeVariables= &writeProcessingGraphVariablesLTTVStandard,
.writeTraceTraceOptions= &writeProcessingTraceTraceOptionsLTTVStandard,
.writeTraceTimeOptions= &writeProcessingTraceTimeOptionsLTTVStandard,
},
/*
* Processing Module registering function
*/
-static void registerProcessingLTTVStandard()
+void registerProcessingLTTVStandard()
{
g_queue_push_tail(&processingModules, &processingModuleLTTVStandard);
* pendingRecv
* hookListList
* stats
- * traceSetContext: set of LTTV traces
+ * traceSetContext: LttvTracesetContext*, set of LTTV traces
*/
-static void initProcessingLTTVStandard(SyncState* const syncState, LttvTracesetContext*
- const traceSetContext)
+static void initProcessingLTTVStandard(SyncState* const syncState, ...)
{
unsigned int i;
ProcessingDataLTTVStandard* processingData;
+ va_list ap;
processingData= malloc(sizeof(ProcessingDataLTTVStandard));
syncState->processingData= processingData;
- processingData->traceSetContext= traceSetContext;
+ va_start(ap, syncState);
+ processingData->traceSetContext= va_arg(ap, LttvTracesetContext*);
+ va_end(ap);
+ syncState->traceNb=
+ lttv_traceset_number(processingData->traceSetContext->ts);
+ processingData->hookListList= g_array_sized_new(FALSE, FALSE,
+ sizeof(GArray*), syncState->traceNb);
- if (syncState->stats)
- {
- processingData->stats= calloc(1, sizeof(ProcessingStatsLTTVStandard));
- }
- else
+ processingData->traceNumTable= g_hash_table_new(&g_direct_hash, NULL);
+ for(i= 0; i < syncState->traceNb; i++)
{
- processingData->stats= NULL;
+ g_hash_table_insert(processingData->traceNumTable,
+ processingData->traceSetContext->traces[i]->t,
+ GUINT_TO_POINTER(i));
}
- processingData->traceNumTable= g_hash_table_new(&g_direct_hash, NULL);
- processingData->hookListList= g_array_sized_new(FALSE, FALSE,
- sizeof(GArray*), syncState->traceNb);
processingData->pendingRecv= malloc(sizeof(GHashTable*) *
syncState->traceNb);
-
for(i= 0; i < syncState->traceNb; i++)
{
- g_hash_table_insert(processingData->traceNumTable,
- processingData->traceSetContext->traces[i]->t, (gpointer) i);
+ processingData->pendingRecv[i]= g_hash_table_new_full(&g_direct_hash,
+ NULL, NULL, &gdnDestroyEvent);
+ }
+
+ if (syncState->stats)
+ {
+ processingData->stats= calloc(1, sizeof(ProcessingStatsLTTVStandard));
+ }
+ else
+ {
+ processingData->stats= NULL;
}
if (syncState->graphsStream)
for(i= 0; i < syncState->traceNb; i++)
{
- LttTrace* traceI= traceSetContext->traces[i]->t;
+ LttTrace* traceI= processingData->traceSetContext->traces[i]->t;
processingData->graphs[i].startFreq= traceI->start_freq;
processingData->graphs[i].freqScale= traceI->freq_scale;
processingData->graphs= NULL;
}
- for(i= 0; i < syncState->traceNb; i++)
- {
- processingData->pendingRecv[i]= g_hash_table_new_full(&g_direct_hash,
- NULL, NULL, &gdnDestroyEvent);
- }
-
- registerHooks(processingData->hookListList, traceSetContext,
- &processEventLTTVStandard, syncState,
+ registerHooks(processingData->hookListList,
+ processingData->traceSetContext, &processEventLTTVStandard, syncState,
syncState->matchingModule->canMatch);
}
/*
- * Call the partial processing destroyer, obtain and adjust the factors from
+ * Call the partial processing destroyer, obtain and the factors from
* downstream
*
* Args:
* syncState container for synchronization data.
+ *
+ * Returns:
+ * AllFactors synchronization factors for each trace pair
*/
-static void finalizeProcessingLTTVStandard(SyncState* const syncState)
+static AllFactors* finalizeProcessingLTTVStandard(SyncState* const syncState)
{
- unsigned int i;
- GArray* factors;
- double minOffset, minDrift;
- unsigned int refFreqTrace;
ProcessingDataLTTVStandard* processingData;
processingData= (ProcessingDataLTTVStandard*) syncState->processingData;
partialDestroyProcessingLTTVStandard(syncState);
- factors= syncState->matchingModule->finalizeMatching(syncState);
-
- /* The offsets are adjusted so the lowest one is 0. This is done because
- * of a Lttv specific limitation: events cannot have negative times. By
- * having non-negative offsets, events cannot be moved backwards to
- * negative times.
- */
- minOffset= 0;
- for (i= 0; i < syncState->traceNb; i++)
- {
- minOffset= MIN(g_array_index(factors, Factors, i).offset, minOffset);
- }
-
- for (i= 0; i < syncState->traceNb; i++)
- {
- g_array_index(factors, Factors, i).offset-= minOffset;
- }
-
- /* Because the timestamps are corrected at the TSC level (not at the
- * LttTime level) all trace frequencies must be made equal. We choose to
- * use the frequency of the system with the lowest drift
- */
- minDrift= INFINITY;
- refFreqTrace= 0;
- for (i= 0; i < syncState->traceNb; i++)
- {
- if (g_array_index(factors, Factors, i).drift < minDrift)
- {
- minDrift= g_array_index(factors, Factors, i).drift;
- refFreqTrace= i;
- }
- }
- g_assert(syncState->traceNb == 0 || minDrift != INFINITY);
-
- // Write the factors to the LttTrace structures
- for (i= 0; i < syncState->traceNb; i++)
- {
- LttTrace* t;
- Factors* traceFactors;
-
- t= processingData->traceSetContext->traces[i]->t;
- traceFactors= &g_array_index(factors, Factors, i);
-
- t->drift= traceFactors->drift;
- t->offset= traceFactors->offset;
- t->start_freq=
- processingData->traceSetContext->traces[refFreqTrace]->t->start_freq;
- t->freq_scale=
- processingData->traceSetContext->traces[refFreqTrace]->t->freq_scale;
- t->start_time_from_tsc =
- ltt_time_from_uint64(tsc_to_uint64(t->freq_scale, t->start_freq,
- t->drift * t->start_tsc + t->offset));
- }
-
- g_array_free(factors, TRUE);
-
- lttv_traceset_context_compute_time_span(processingData->traceSetContext,
- &processingData->traceSetContext->time_span);
-
- g_debug("traceset start %ld.%09ld end %ld.%09ld\n",
- processingData->traceSetContext->time_span.start_time.tv_sec,
- processingData->traceSetContext->time_span.start_time.tv_nsec,
- processingData->traceSetContext->time_span.end_time.tv_sec,
- processingData->traceSetContext->time_span.end_time.tv_nsec);
+ return syncState->matchingModule->finalizeMatching(syncState);
}
/*
- * Print statistics related to processing Must be called after
+ * Print statistics related to processing. Must be called after
* finalizeProcessing.
*
* Args:
for(i= 0; i < syncState->traceNb; i++)
{
- g_debug("Cleaning up pendingRecv list\n");
+ g_debug("Cleaning up pendingRecv list");
g_hash_table_destroy(processingData->pendingRecv[i]);
}
free(processingData->pendingRecv);
struct marker_info* info;
SyncState* syncState;
ProcessingDataLTTVStandard* processingData;
+ gpointer traceNumP;
traceHook= (LttvTraceHook*) hookData;
tfc= (LttvTracefileContext*) callData;
wTime.nanosec= time.tv_nsec;
g_assert(g_hash_table_lookup_extended(processingData->traceNumTable,
- trace, NULL, (gpointer*) &traceNum));
+ trace, NULL, &traceNumP));
+ traceNum= GPOINTER_TO_INT(traceNumP);
- g_debug("XXXX process event: time: %ld.%09ld trace: %ld (%p) name: %s ",
+ g_debug("Process event: time: %ld.%09ld trace: %ld (%p) name: %s ",
time.tv_sec, time.tv_nsec, traceNum, trace,
g_quark_to_string(info->name));
syncState->matchingModule->matchEvent(syncState, outE);
- g_debug("Output event done\n");
+ g_debug("Output event done");
}
else if (info->name == LTT_EVENT_DEV_RECEIVE)
{
g_hash_table_replace(processingData->pendingRecv[traceNum], skb,
inE);
- g_debug("Adding inE %p for skb %p to pendingRecv\n", inE, skb);
- }
- else
- {
- g_debug("\n");
+ g_debug("Adding inE %p for skb %p to pendingRecv", inE, skb);
}
}
else if (info->name == LTT_EVENT_TCPV4_RCV_EXTENDED)
syncState->matchingModule->matchEvent(syncState, inE);
- g_debug("TCP input event %p for skb %p done\n", inE, skb);
+ g_debug("TCP input event %p for skb %p done", inE, skb);
}
}
else if (info->name == LTT_EVENT_UDPV4_RCV_EXTENDED)
syncState->matchingModule->matchEvent(syncState, inE);
- g_debug("UDP input event %p for skb %p done\n", inE, skb);
+ g_debug("UDP input event %p for skb %p done", inE, skb);
}
}
else
}
+/*
+ * Write the processing-specific variables in the gnuplot script.
+ *
+ * Args:
+ * syncState: container for synchronization data
+ * i: trace number
+ */
+static void writeProcessingGraphVariablesLTTVStandard(SyncState* const
+ syncState, const unsigned int i)
+{
+ ProcessingDataLTTVStandard* processingData= syncState->processingData;
+ ProcessingGraphsLTTVStandard* traceI= &processingData->graphs[i];
+
+ fprintf(syncState->graphsStream, "clock_freq_%u= %.3f\n", i, (double)
+ traceI->startFreq / traceI->freqScale);
+}
+
+
/*
* Write the processing-specific options in the gnuplot script.
*
static void writeProcessingTraceTraceOptionsLTTVStandard(SyncState* const
syncState, const unsigned int i, const unsigned int j)
{
- ProcessingDataLTTVStandard* processingData;
- ProcessingGraphsLTTVStandard* traceI, * traceJ;
-
- processingData= (ProcessingDataLTTVStandard*) syncState->processingData;
-
- traceI= &processingData->graphs[i];
- traceJ= &processingData->graphs[j];
-
fprintf(syncState->graphsStream,
"set key inside right bottom\n"
"set xlabel \"Clock %1$u\"\n"
"set xtics nomirror\n"
- "set ylabel \"Clock %3$u\"\n"
+ "set ylabel \"Clock %2$u\"\n"
"set ytics nomirror\n"
"set x2label \"Clock %1$d (s)\"\n"
- "set x2range [GPVAL_X_MIN / %2$.1f : GPVAL_X_MAX / %2$.1f]\n"
+ "set x2range [GPVAL_X_MIN / clock_freq_%1$u : GPVAL_X_MAX / clock_freq_%1$u]\n"
"set x2tics\n"
- "set y2label \"Clock %3$d (s)\"\n"
- "set y2range [GPVAL_Y_MIN / %4$.1f : GPVAL_Y_MAX / %4$.1f]\n"
- "set y2tics\n", i, (double) traceI->startFreq / traceI->freqScale, j,
- (double) traceJ->startFreq / traceJ->freqScale);
+ "set y2label \"Clock %2$d (s)\"\n"
+ "set y2range [GPVAL_Y_MIN / clock_freq_%2$u : GPVAL_Y_MAX / clock_freq_%2$u]\n"
+ "set y2tics\n", i, j);
}
static void writeProcessingTraceTimeOptionsLTTVStandard(SyncState* const
syncState, const unsigned int i, const unsigned int j)
{
- ProcessingDataLTTVStandard* processingData;
- ProcessingGraphsLTTVStandard* traceI, * traceJ;
-
- processingData= (ProcessingDataLTTVStandard*) syncState->processingData;
-
- traceI= &processingData->graphs[i];
- traceJ= &processingData->graphs[j];
-
fprintf(syncState->graphsStream,
"set key inside right bottom\n"
"set xlabel \"Clock %1$u\"\n"
"set ylabel \"time (s)\"\n"
"set ytics nomirror\n"
"set x2label \"Clock %1$d (s)\"\n"
- "set x2range [GPVAL_X_MIN / %2$.1f : GPVAL_X_MAX / %2$.1f]\n"
- "set x2tics\n", i, (double) traceI->startFreq / traceI->freqScale);
+ "set x2range [GPVAL_X_MIN / clock_freq_%1$u : GPVAL_X_MAX / clock_freq_%1$u]\n"
+ "set x2tics\n", i);
}
projects / lttv.git / blobdiff