#include <stdlib.h>
#include <sys/resource.h>
#include <sys/stat.h>
-#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <lttv/module.h>
#include <lttv/option.h>
+#include "sync_chain.h"
#include "sync_chain_lttv.h"
-#ifndef g_info
-#define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
-#endif
-
-
static void init();
static void destroy();
-static void timeDiff(struct timeval* const end, const struct timeval* const start);
-
-static gint gcfCompareAnalysis(gconstpointer a, gconstpointer b);
-static gint gcfCompareProcessing(gconstpointer a, gconstpointer b);
-static void gfAppendAnalysisName(gpointer data, gpointer user_data);
-
-static gboolean optionSync;
-static gboolean optionSyncStats;
-static gboolean optionSyncNull;
-static char* optionSyncAnalysis;
-static gboolean optionSyncGraphs;
-static char* optionSyncGraphsDir;
+static void gfAddModuleOption(gpointer data, gpointer user_data);
+static void gfRemoveModuleOption(gpointer data, gpointer user_data);
+
+static ModuleOption optionSync= {
+ .longName= "sync",
+ .hasArg= NO_ARG,
+ .optionHelp= "synchronize the time between the traces",
+};
+static ModuleOption optionSyncStats= {
+ .longName= "sync-stats",
+ .hasArg= NO_ARG,
+ .optionHelp= "print statistics about the time synchronization",
+};
+static ModuleOption optionSyncNull= {
+ .longName= "sync-null",
+ .hasArg= NO_ARG,
+ .optionHelp= "read the events but do not perform any processing",
+};
+static GString* analysisModulesNames;
+static ModuleOption optionSyncAnalysis= {
+ .longName= "sync-analysis",
+ .hasArg= REQUIRED_ARG,
+ .optionHelp= "specify the algorithm to use for event analysis",
+};
+static ModuleOption optionSyncGraphs= {
+ .longName= "sync-graphs",
+ .hasArg= NO_ARG,
+ .optionHelp= "output gnuplot graph showing synchronization points",
+};
static char graphsDir[20];
-
-GQueue processingModules= G_QUEUE_INIT;
-GQueue matchingModules= G_QUEUE_INIT;
-GQueue analysisModules= G_QUEUE_INIT;
+static ModuleOption optionSyncGraphsDir= {
+ .longName= "sync-graphs-dir",
+ .hasArg= REQUIRED_ARG,
+ .optionHelp= "specify the directory where to store the graphs",
+};
/*
*/
static void init()
{
- GString* analysisModulesNames;
int retval;
- g_debug("\t\t\tXXXX sync init\n");
-
- optionSync= FALSE;
- lttv_option_add("sync", '\0', "synchronize the time between the traces" ,
- "none", LTTV_OPT_NONE, &optionSync, NULL, NULL);
-
- optionSyncStats= FALSE;
- lttv_option_add("sync-stats", '\0', "print statistics about the time "
- "synchronization", "none", LTTV_OPT_NONE, &optionSyncStats, NULL,
- NULL);
-
- optionSyncNull= FALSE;
- lttv_option_add("sync-null", '\0', "read the events but do not perform "
- "any processing", "none", LTTV_OPT_NONE, &optionSyncNull, NULL, NULL);
+ g_debug("Sync init");
g_assert(g_queue_get_length(&analysisModules) > 0);
- optionSyncAnalysis= ((AnalysisModule*)
+ optionSyncAnalysis.arg= ((AnalysisModule*)
g_queue_peek_head(&analysisModules))->name;
analysisModulesNames= g_string_new("");
g_queue_foreach(&analysisModules, &gfAppendAnalysisName,
analysisModulesNames);
// remove the last ", "
g_string_truncate(analysisModulesNames, analysisModulesNames->len - 2);
- lttv_option_add("sync-analysis", '\0', "specify the algorithm to use for "
- "event analysis" , analysisModulesNames->str, LTTV_OPT_STRING,
- &optionSyncAnalysis, NULL, NULL);
- g_string_free(analysisModulesNames, TRUE);
-
- optionSyncGraphs= FALSE;
- lttv_option_add("sync-graphs", '\0', "output gnuplot graph showing "
- "synchronization points", "none", LTTV_OPT_NONE, &optionSyncGraphs,
- NULL, NULL);
+ optionSyncAnalysis.argHelp= analysisModulesNames->str;
retval= snprintf(graphsDir, sizeof(graphsDir), "graphs-%d", getpid());
if (retval > sizeof(graphsDir) - 1)
{
graphsDir[sizeof(graphsDir) - 1]= '\0';
}
- optionSyncGraphsDir= graphsDir;
- lttv_option_add("sync-graphs-dir", '\0', "specify the directory where to"
- " store the graphs", graphsDir, LTTV_OPT_STRING, &optionSyncGraphsDir,
- NULL, NULL);
+ optionSyncGraphsDir.arg= graphsDir;
+ optionSyncGraphsDir.argHelp= graphsDir;
+
+ g_queue_push_head(&moduleOptions, &optionSyncGraphsDir);
+ g_queue_push_head(&moduleOptions, &optionSyncGraphs);
+ g_queue_push_head(&moduleOptions, &optionSyncAnalysis);
+ g_queue_push_head(&moduleOptions, &optionSyncNull);
+ g_queue_push_head(&moduleOptions, &optionSyncStats);
+ g_queue_push_head(&moduleOptions, &optionSync);
+
+ g_queue_foreach(&moduleOptions, &gfAddModuleOption, NULL);
}
*/
static void destroy()
{
- g_debug("\t\t\tXXXX sync destroy\n");
-
- lttv_option_remove("sync");
- lttv_option_remove("sync-stats");
- lttv_option_remove("sync-null");
- lttv_option_remove("sync-analysis");
- lttv_option_remove("sync-graphs");
- lttv_option_remove("sync-graphs-dir");
+ g_debug("Sync destroy");
+
+ g_queue_foreach(&moduleOptions, &gfRemoveModuleOption, NULL);
+ g_string_free(analysisModulesNames, TRUE);
+
+ g_queue_clear(&processingModules);
+ g_queue_clear(&matchingModules);
+ g_queue_clear(&analysisModules);
+ g_queue_clear(&moduleOptions);
}
struct timeval startTime, endTime;
struct rusage startUsage, endUsage;
GList* result;
- char* cwd;
- FILE* graphsStream;
- int graphsFp;
+ unsigned int i;
int retval;
- if (optionSync == FALSE)
+ if (!optionSync.present)
{
g_debug("Not synchronizing traceset because option is disabled");
return;
}
- if (optionSyncStats)
+ if (optionSyncStats.present)
{
gettimeofday(&startTime, 0);
getrusage(RUSAGE_SELF, &startUsage);
syncState= malloc(sizeof(SyncState));
syncState->traceNb= lttv_traceset_number(traceSetContext->ts);
- if (optionSyncStats)
+ if (optionSyncStats.present)
{
syncState->stats= true;
}
syncState->stats= false;
}
- if (optionSyncGraphs)
+ if (optionSyncGraphs.present)
{
- syncState->graphs= optionSyncGraphsDir;
+ // Create the graph directory right away in case the module initialization
+ // functions have something to write in it.
+ syncState->graphsDir= optionSyncGraphsDir.arg;
+ syncState->graphsStream= createGraphsDir(syncState->graphsDir);
}
else
{
- syncState->graphs= NULL;
+ syncState->graphsStream= NULL;
+ syncState->graphsDir= NULL;
}
- // Identify and initialize processing module
+ // Identify and initialize modules
syncState->processingData= NULL;
- if (optionSyncNull)
+ if (optionSyncNull.present)
{
result= g_queue_find_custom(&processingModules, "LTTV-null",
&gcfCompareProcessing);
g_assert(result != NULL);
syncState->processingModule= (ProcessingModule*) result->data;
- graphsStream= NULL;
- if (syncState->graphs &&
- syncState->processingModule->writeProcessingGraphsPlots != NULL)
- {
- // Create the graph directory right away in case the module initialization
- // functions have something to write in it.
- cwd= changeToGraphDir(syncState->graphs);
-
- if ((graphsFp= open("graphs.gnu", O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR |
- S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP | S_IROTH
- | S_IWOTH | S_IXOTH)) == -1)
- {
- g_error(strerror(errno));
- }
- if ((graphsStream= fdopen(graphsFp, "w")) == NULL)
- {
- g_error(strerror(errno));
- }
-
- retval= chdir(cwd);
- if (retval == -1)
- {
- g_error(strerror(errno));
- }
- free(cwd);
- }
-
- // Identify matching and analysis modules
- g_assert(g_queue_get_length(&matchingModules) == 1);
- syncState->matchingModule= (MatchingModule*)
- g_queue_peek_head(&matchingModules);
+ syncState->matchingData= NULL;
+ result= g_queue_find_custom(&matchingModules, "TCP", &gcfCompareMatching);
+ g_assert(result != NULL);
+ syncState->matchingModule= (MatchingModule*) result->data;
- result= g_queue_find_custom(&analysisModules, optionSyncAnalysis,
+ syncState->analysisData= NULL;
+ result= g_queue_find_custom(&analysisModules, optionSyncAnalysis.arg,
&gcfCompareAnalysis);
if (result != NULL)
{
}
else
{
- g_error("Analysis module '%s' not found", optionSyncAnalysis);
+ g_error("Analysis module '%s' not found", optionSyncAnalysis.arg);
}
- syncState->processingModule->initProcessing(syncState, traceSetContext);
-
- syncState->matchingData= NULL;
- syncState->analysisData= NULL;
-
- if (!optionSyncNull)
+ if (!optionSyncNull.present)
{
- syncState->matchingModule->initMatching(syncState);
syncState->analysisModule->initAnalysis(syncState);
+ syncState->matchingModule->initMatching(syncState);
}
+ syncState->processingModule->initProcessing(syncState, traceSetContext);
// Process traceset
lttv_process_traceset_seek_time(traceSetContext, ltt_time_zero);
syncState->processingModule->finalizeProcessing(syncState);
// Write graphs file
- if (graphsStream != NULL)
+ if (optionSyncGraphs.present)
{
- unsigned int i, j;
-
- fprintf(graphsStream,
- "#!/usr/bin/gnuplot\n\n"
- "set terminal postscript eps color size 8in,6in\n");
+ writeGraphsScript(syncState);
- // Cover the upper triangular matrix, i is the reference node.
- for (i= 0; i < syncState->traceNb; i++)
- {
- for (j= i + 1; j < syncState->traceNb; j++)
- {
- long pos;
-
- fprintf(graphsStream,
- "\nset output \"%03d-%03d.eps\"\n"
- "plot \\\n", i, j);
-
- syncState->processingModule->writeProcessingGraphsPlots(graphsStream,
- syncState, i, j);
-
- // Remove the ", \\\n" from the last graph plot line
- fflush(graphsStream);
- pos= ftell(graphsStream);
- if (ftruncate(fileno(graphsStream), pos - 4) == -1)
- {
- g_error(strerror(errno));
- }
- if (fseek(graphsStream, 0, SEEK_END) == -1)
- {
- g_error(strerror(errno));
- }
-
- fprintf(graphsStream,
- "\nset output \"%1$03d-%2$03d.eps\"\n"
- "set key inside right bottom\n"
- "set title \"\"\n"
- "set xlabel \"Clock %1$u\"\n"
- "set xtics nomirror\n"
- "set ylabel \"Clock %2$u\"\n"
- "set ytics nomirror\n", i, j);
-
- syncState->processingModule->writeProcessingGraphsOptions(graphsStream,
- syncState, i, j);
-
- fprintf(graphsStream,
- "replot\n");
- }
- }
-
- if (fclose(graphsStream) != 0)
+ if (fclose(syncState->graphsStream) != 0)
{
g_error(strerror(errno));
}
{
syncState->processingModule->printProcessingStats(syncState);
}
+ if (syncState->matchingModule->printMatchingStats != NULL)
+ {
+ syncState->matchingModule->printMatchingStats(syncState);
+ }
+ if (syncState->analysisModule->printAnalysisStats != NULL)
+ {
+ syncState->analysisModule->printAnalysisStats(syncState);
+ }
+
+ if (optionSyncStats.present)
+ {
+ printf("Resulting synchronization factors:\n");
+ for (i= 0; i < syncState->traceNb; i++)
+ {
+ LttTrace* t;
+
+ t= 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);
+ }
+ }
syncState->processingModule->destroyProcessing(syncState);
if (syncState->matchingModule != NULL)
free(syncState);
- if (optionSyncStats)
+ if (optionSyncStats.present)
{
gettimeofday(&endTime, 0);
retval= getrusage(RUSAGE_SELF, &endUsage);
}
-/*
- * Calculate the elapsed time between two timeval values
- *
- * Args:
- * end: end time, result is also stored in this structure
- * start: start time
- */
-static void timeDiff(struct timeval* const end, const struct timeval* const start)
-{
- if (end->tv_usec >= start->tv_usec)
- {
- end->tv_sec-= start->tv_sec;
- end->tv_usec-= start->tv_usec;
- }
- else
- {
- end->tv_sec= end->tv_sec - start->tv_sec - 1;
- end->tv_usec= end->tv_usec - start->tv_usec + 1e6;
- }
-}
-
-
-/*
- * A GCompareFunc for g_slist_find_custom()
- *
- * Args:
- * a: AnalysisModule*, element's data
- * b: char*, user data to compare against
- *
- * Returns:
- * 0 if the analysis module a's name is b
- */
-static gint gcfCompareAnalysis(gconstpointer a, gconstpointer b)
-{
- const AnalysisModule* analysisModule;
- const char* name;
-
- analysisModule= (const AnalysisModule*)a;
- name= (const char*)b;
-
- return strncmp(analysisModule->name, name, strlen(analysisModule->name) +
- 1);
-}
-
-
-/*
- * A GCompareFunc for g_slist_find_custom()
- *
- * Args:
- * a: ProcessingModule*, element's data
- * b: char*, user data to compare against
- *
- * Returns:
- * 0 if the analysis module a's name is b
- */
-static gint gcfCompareProcessing(gconstpointer a, gconstpointer b)
-{
- const ProcessingModule* processingModule;
- const char* name;
-
- processingModule= (const ProcessingModule*)a;
- name= (const char*)b;
-
- return strncmp(processingModule->name, name,
- strlen(processingModule->name) + 1);
-}
-
-
/*
* A GFunc for g_queue_foreach()
*
- * Concatenate analysis module names.
- *
* Args:
- * data: AnalysisModule*
- * user_data: GString*, concatenated names
+ * data: ModuleOption*
+ * user_data: NULL
*/
-static void gfAppendAnalysisName(gpointer data, gpointer user_data)
+static void gfAddModuleOption(gpointer data, gpointer user_data)
{
- g_string_append((GString*) user_data, ((AnalysisModule*) data)->name);
- g_string_append((GString*) user_data, ", ");
+ ModuleOption* option= data;
+ LttvOptionType conversion[]= {
+ [NO_ARG]= LTTV_OPT_NONE,
+ [OPTIONAL_ARG]= LTTV_OPT_NONE,
+ [REQUIRED_ARG]= LTTV_OPT_STRING,
+ };
+ size_t fieldOffset[]= {
+ [NO_ARG]= offsetof(ModuleOption, present),
+ [REQUIRED_ARG]= offsetof(ModuleOption, arg),
+ };
+ static const char* argHelpNone= "none";
+
+ g_assert_cmpuint(sizeof(conversion) / sizeof(*conversion), ==,
+ HAS_ARG_COUNT);
+ if (option->hasArg == OPTIONAL_ARG)
+ {
+ g_warning("Parameters with optional arguments not supported by the "
+ "lttv option scheme, parameter '%s' will not be available",
+ option->longName);
+ }
+ else
+ {
+ lttv_option_add(option->longName, '\0', option->optionHelp,
+ option->argHelp ? option->argHelp : argHelpNone,
+ conversion[option->hasArg], (void*) option + fieldOffset[option->hasArg],
+ NULL, NULL);
+ }
}
/*
- * Change to the directory used to hold graphs. Create it if necessary.
+ * A GFunc for g_queue_foreach()
*
* Args:
- * graph: name of directory
- *
- * Returns:
- * The current working directory before the execution of the function. The
- * string must be free'd by the caller.
+ * data: ModuleOption*
+ * user_data: NULL
*/
-char* changeToGraphDir(char* const graphs)
+static void gfRemoveModuleOption(gpointer data, gpointer user_data)
{
- int retval;
- char* cwd;
-
- cwd= getcwd(NULL, 0);
- if (cwd == NULL)
- {
- g_error(strerror(errno));
- }
- while ((retval= chdir(graphs)) != 0)
- {
- if (errno == ENOENT)
- {
- retval= mkdir(graphs, S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP |
- S_IWGRP | S_IXGRP | S_IROTH | S_IWOTH | S_IXOTH);
- if (retval != 0)
- {
- g_error(strerror(errno));
- }
- }
- else
- {
- g_error(strerror(errno));
- }
- }
-
- return cwd;
+ lttv_option_remove(((ModuleOption*) data)->longName);
}
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