+++ /dev/null
-/* This file is part of the Linux Trace Toolkit viewer
- * Copyright (C) 2009 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 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.
- *
- * 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.
- */
-
-#define _ISOC99_SOURCE
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <linux/if_ether.h>
-#include <math.h>
-#include <netinet/in.h>
-#include <stdint.h>
-#include <stdlib.h>
-
-#include "sync_chain.h"
-#include "event_processing_lttv_common.h"
-
-#include "event_processing_lttv_standard.h"
-
-
-#ifndef g_info
-#define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
-#endif
-
-
-// Functions common to all processing modules
-static void initProcessingLTTVStandard(SyncState* const syncState,
- LttvTracesetContext* const traceSetContext);
-static void destroyProcessingLTTVStandard(SyncState* const syncState);
-
-static void finalizeProcessingLTTVStandard(SyncState* const syncState);
-static void printProcessingStatsLTTVStandard(SyncState* const syncState);
-static void writeProcessingGraphsPlotsLTTVStandard(FILE* stream, SyncState*
- const syncState, const unsigned int i, const unsigned int j);
-static void writeProcessingGraphsOptionsLTTVStandard(FILE* stream, 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);
-
-
-static ProcessingModule processingModuleLTTVStandard = {
- .name= "LTTV-standard",
- .initProcessing= &initProcessingLTTVStandard,
- .destroyProcessing= &destroyProcessingLTTVStandard,
- .finalizeProcessing= &finalizeProcessingLTTVStandard,
- .printProcessingStats= &printProcessingStatsLTTVStandard,
- .writeProcessingGraphsPlots= &writeProcessingGraphsPlotsLTTVStandard,
- .writeProcessingGraphsOptions= &writeProcessingGraphsOptionsLTTVStandard,
-};
-
-
-
-/*
- * Processing Module registering function
- */
-static void registerProcessingLTTVStandard()
-{
- g_queue_push_tail(&processingModules, &processingModuleLTTVStandard);
-
- createQuarks();
-}
-
-
-/*
- * Allocate and initialize data structures for synchronizing a traceset.
- * Register event hooks.
- *
- * Args:
- * syncState: container for synchronization data.
- * This function allocates these processingData members:
- * traceNumTable
- * pendingRecv
- * hookListList
- * stats
- * traceSetContext: set of LTTV traces
- */
-static void initProcessingLTTVStandard(SyncState* const syncState, LttvTracesetContext*
- const traceSetContext)
-{
- unsigned int i;
- ProcessingDataLTTVStandard* processingData;
-
- processingData= malloc(sizeof(ProcessingDataLTTVStandard));
- syncState->processingData= processingData;
- processingData->traceSetContext= traceSetContext;
-
- if (syncState->stats)
- {
- processingData->stats= calloc(1, sizeof(ProcessingStatsLTTVStandard));
- }
- else
- {
- processingData->stats= NULL;
- }
-
- 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);
- }
-
- for(i= 0; i < syncState->traceNb; i++)
- {
- processingData->pendingRecv[i]= g_hash_table_new_full(&g_direct_hash,
- NULL, NULL, &gdnDestroyNetEvent);
- }
-
- registerHooks(processingData->hookListList, traceSetContext,
- &processEventLTTVStandard, syncState);
-}
-
-
-/*
- * Call the partial processing destroyer, obtain and adjust the factors from
- * downstream
- *
- * Args:
- * syncState container for synchronization data.
- */
-static void 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;
-}
-
-
-/*
- * Print statistics related to processing and downstream modules. Must be
- * called after finalizeProcessing.
- *
- * Args:
- * syncState container for synchronization data.
- */
-static void printProcessingStatsLTTVStandard(SyncState* const syncState)
-{
- unsigned int i;
- ProcessingDataLTTVStandard* processingData;
-
- if (!syncState->stats)
- {
- return;
- }
-
- processingData= (ProcessingDataLTTVStandard*) syncState->processingData;
-
- printf("LTTV processing stats:\n");
- printf("\treceived frames: %d\n", processingData->stats->totRecv);
- printf("\treceived frames that are IP: %d\n",
- processingData->stats->totRecvIp);
- printf("\treceived and processed packets that are TCP: %d\n",
- processingData->stats->totInE);
- printf("\tsent packets that are TCP: %d\n",
- processingData->stats->totOutE);
-
- if (syncState->matchingModule->printMatchingStats != NULL)
- {
- syncState->matchingModule->printMatchingStats(syncState);
- }
-
- printf("Resulting synchronization factors:\n");
- for (i= 0; i < syncState->traceNb; i++)
- {
- LttTrace* t;
-
- t= processingData->traceSetContext->traces[i]->t;
-
- printf("\ttrace %u drift= %g offset= %g (%f) start time= %ld.%09ld\n",
- i, t->drift, t->offset, (double) tsc_to_uint64(t->freq_scale,
- t->start_freq, t->offset) / NANOSECONDS_PER_SECOND,
- t->start_time_from_tsc.tv_sec, t->start_time_from_tsc.tv_nsec);
- }
-}
-
-
-/*
- * Unregister event hooks. Deallocate processingData.
- *
- * Args:
- * syncState: container for synchronization data.
- * This function deallocates these processingData members:
- * stats
- */
-static void destroyProcessingLTTVStandard(SyncState* const syncState)
-{
- ProcessingDataLTTVStandard* processingData;
-
- processingData= (ProcessingDataLTTVStandard*) syncState->processingData;
-
- if (processingData == NULL)
- {
- return;
- }
-
- partialDestroyProcessingLTTVStandard(syncState);
-
- if (syncState->stats)
- {
- free(processingData->stats);
- }
-
- free(syncState->processingData);
- syncState->processingData= NULL;
-}
-
-
-/*
- * Unregister event hooks. Deallocate some of processingData.
- *
- * This function can be called right after the events have been processed to
- * free some data structures that are not needed for finalization.
- *
- * Args:
- * syncState: container for synchronization data.
- * This function deallocates these members:
- * traceNumTable
- * hookListList
- * pendingRecv
- */
-static void partialDestroyProcessingLTTVStandard(SyncState* const syncState)
-{
- unsigned int i;
- ProcessingDataLTTVStandard* processingData;
-
- processingData= (ProcessingDataLTTVStandard*) syncState->processingData;
-
- if (processingData == NULL || processingData->traceNumTable == NULL)
- {
- return;
- }
-
- g_hash_table_destroy(processingData->traceNumTable);
- processingData->traceNumTable= NULL;
-
- for(i= 0; i < syncState->traceNb; i++)
- {
-
- g_debug("Cleaning up pendingRecv list\n");
- g_hash_table_destroy(processingData->pendingRecv[i]);
- }
- free(processingData->pendingRecv);
-
- unregisterHooks(processingData->hookListList,
- processingData->traceSetContext);
-}
-
-
-/*
- * Lttv hook function that will be called for network events
- *
- * Args:
- * hookData: LttvTraceHook* for the type of event that generated the call
- * callData: LttvTracefileContext* at the moment of the event
- *
- * Returns:
- * FALSE Always returns FALSE, meaning to keep processing hooks for
- * this event
- */
-static gboolean processEventLTTVStandard(void* hookData, void* callData)
-{
- LttvTraceHook* traceHook;
- LttvTracefileContext* tfc;
- LttEvent* event;
- LttTime time;
- LttCycleCount tsc;
- LttTrace* trace;
- unsigned long traceNum;
- struct marker_info* info;
- SyncState* syncState;
- ProcessingDataLTTVStandard* processingData;
-
- traceHook= (LttvTraceHook*) hookData;
- tfc= (LttvTracefileContext*) callData;
- syncState= (SyncState*) traceHook->hook_data;
- processingData= (ProcessingDataLTTVStandard*) syncState->processingData;
- event= ltt_tracefile_get_event(tfc->tf);
- time= ltt_event_time(event);
- tsc= ltt_event_cycle_count(event);
- trace= tfc->t_context->t;
- info= marker_get_info_from_id(tfc->tf->mdata, event->event_id);
-
- g_assert(g_hash_table_lookup_extended(processingData->traceNumTable,
- trace, NULL, (gpointer*) &traceNum));
-
- g_debug("XXXX process event: time: %ld.%09ld trace: %ld (%p) name: %s ",
- (long) time.tv_sec, time.tv_nsec, traceNum, trace,
- g_quark_to_string(info->name));
-
- if (info->name == LTT_EVENT_DEV_XMIT)
- {
- NetEvent* outE;
-
- if (!ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 1)) == ETH_P_IP ||
- !ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 2)) == IPPROTO_TCP)
- {
- return FALSE;
- }
-
- if (syncState->stats)
- {
- processingData->stats->totOutE++;
- }
-
- outE= malloc(sizeof(NetEvent));
- outE->packetKey= malloc(sizeof(PacketKey));
-
- outE->traceNum= traceNum;
- outE->tsc= tsc;
- outE->skb= NULL;
- outE->packetKey->connectionKey.saddr= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 3));
- outE->packetKey->connectionKey.daddr= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 4));
- outE->packetKey->tot_len= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 5));
- outE->packetKey->ihl= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 6));
- outE->packetKey->connectionKey.source= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 7));
- outE->packetKey->connectionKey.dest= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 8));
- outE->packetKey->seq= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 9));
- outE->packetKey->ack_seq= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 10));
- outE->packetKey->doff= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 11));
- outE->packetKey->ack= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 12));
- outE->packetKey->rst= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 13));
- outE->packetKey->syn= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 14));
- outE->packetKey->fin= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 15));
-
- syncState->matchingModule->matchEvent(syncState, outE, OUT);
-
- g_debug("Output event done\n");
- }
- else if (info->name == LTT_EVENT_DEV_RECEIVE)
- {
- guint32 protocol;
-
- if (syncState->stats)
- {
- processingData->stats->totRecv++;
- }
-
- protocol= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 1));
-
- if (protocol == ETH_P_IP)
- {
- NetEvent* inE;
-
- if (syncState->stats)
- {
- processingData->stats->totRecvIp++;
- }
-
- inE= malloc(sizeof(NetEvent));
-
- inE->traceNum= traceNum;
- inE->tsc= tsc;
- inE->skb= (void*) (long) ltt_event_get_long_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 0));
- inE->packetKey= NULL;
-
- g_hash_table_replace(processingData->pendingRecv[traceNum],
- inE->skb, inE);
-
- g_debug("Adding inE %p for skb %p to pendingRecv\n", inE, inE->skb);
- }
- else
- {
- g_debug("\n");
- }
- }
- else if (info->name == LTT_EVENT_TCPV4_RCV)
- {
- NetEvent* inE;
- void* skb;
-
- // Search pendingRecv for an event with the same skb
- skb= (void*) (long) ltt_event_get_long_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 0));
-
- inE= (NetEvent*)
- g_hash_table_lookup(processingData->pendingRecv[traceNum], skb);
- if (inE == NULL)
- {
- // This should only happen in case of lost events
- g_debug("No matching pending receive event found\n");
- }
- else
- {
- if (syncState->stats)
- {
- processingData->stats->totInE++;
- }
-
- // If it's there, remove it and proceed with a receive event
- g_hash_table_steal(processingData->pendingRecv[traceNum], skb);
-
- inE->packetKey= malloc(sizeof(PacketKey));
-
- inE->packetKey->connectionKey.saddr= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 1));
- inE->packetKey->connectionKey.daddr= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 2));
- inE->packetKey->tot_len= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 3));
- inE->packetKey->ihl= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 4));
- inE->packetKey->connectionKey.source= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 5));
- inE->packetKey->connectionKey.dest= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 6));
- inE->packetKey->seq= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 7));
- inE->packetKey->ack_seq= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 8));
- inE->packetKey->doff= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 9));
- inE->packetKey->ack= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 10));
- inE->packetKey->rst= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 11));
- inE->packetKey->syn= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 12));
- inE->packetKey->fin= ltt_event_get_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 13));
-
- syncState->matchingModule->matchEvent(syncState, inE, IN);
-
- g_debug("Input event %p for skb %p done\n", inE, skb);
- }
- }
- else if (info->name == LTT_EVENT_NETWORK_IPV4_INTERFACE)
- {
- char* name;
- guint64 address;
- gint64 up;
- char addressString[17];
-
- address= ltt_event_get_long_unsigned(event,
- lttv_trace_get_hook_field(traceHook, 1));
- up= ltt_event_get_long_int(event, lttv_trace_get_hook_field(traceHook,
- 2));
- /* name must be the last field to get or else copy the string, see the
- * doc for ltt_event_get_string()
- */
- name= ltt_event_get_string(event, lttv_trace_get_hook_field(traceHook,
- 0));
-
- convertIP(addressString, address);
-
- g_debug("name \"%s\" address %s up %lld\n", name, addressString, up);
- }
- else
- {
- g_assert_not_reached();
- }
-
- return FALSE;
-}
-
-
-/*
- * Write the processing-specific graph lines in the gnuplot script (none at
- * the moment). Call the downstream module's graph function.
- *
- * Args:
- * stream: stream where to write the data
- * syncState: container for synchronization data
- * i: first trace number
- * j: second trace number, garanteed to be larger than i
- */
-static void writeProcessingGraphsPlotsLTTVStandard(FILE* stream, SyncState*
- const syncState, const unsigned int i, const unsigned int j)
-{
- if (syncState->matchingModule->writeMatchingGraphsPlots != NULL)
- {
- syncState->matchingModule->writeMatchingGraphsPlots(stream, syncState,
- i, j);
- }
-}
-
-
-/*
- * Write the processing-specific options in the gnuplot script. Call the
- * downstream module's options function.
- *
- * Args:
- * stream: stream where to write the data
- * syncState: container for synchronization data
- * i: first trace number
- * j: second trace number, garanteed to be larger than i
- */
-static void writeProcessingGraphsOptionsLTTVStandard(FILE* stream, SyncState*
- const syncState, const unsigned int i, const unsigned int j)
-{
- ProcessingDataLTTVStandard* processingData;
- LttTrace* traceI, * traceJ;
-
- processingData= (ProcessingDataLTTVStandard*) syncState->processingData;
-
- traceI= processingData->traceSetContext->traces[i]->t;
- traceJ= processingData->traceSetContext->traces[j]->t;
-
- fprintf(stream,
- "set x2label \"Clock %1$d (s)\"\n"
- "set x2range [GPVAL_X_MIN / %2$.1f : GPVAL_X_MAX / %2$.1f]\n"
- "set x2tics\n"
- "set y2label \"Clock %3$d (s)\"\n"
- "set y2range [GPVAL_Y_MIN / %4$.1f : GPVAL_Y_MAX / %4$.1f]\n"
- "set y2tics\n", i, (double) traceI->start_freq / traceI->freq_scale,
- j, (double) traceJ->start_freq / traceJ->freq_scale);
-
- if (syncState->matchingModule->writeMatchingGraphsOptions != NULL)
- {
- syncState->matchingModule->writeMatchingGraphsOptions(stream,
- syncState, i, j);
- }
-}
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