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counters.c
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counters.c
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/* Copyright (C) 2007-2015 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program 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
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Anoop Saldanha <[email protected]>
* \author Victor Julien <[email protected]>
*
* Engine stats API
*/
#include "suricata-common.h"
#include "suricata.h"
#include "counters.h"
#include "threadvars.h"
#include "tm-threads.h"
#include "conf.h"
#include "util-time.h"
#include "util-unittest.h"
#include "util-debug.h"
#include "util-privs.h"
#include "util-signal.h"
#include "unix-manager.h"
#include "runmodes.h"
#include "output.h"
#include "output-stats.h"
#include "output-json-stats.h"
/* Time interval for syncing the local counters with the global ones */
#define STATS_WUT_TTS 3
/* Time interval at which the mgmt thread o/p the stats */
#define STATS_MGMTT_TTS 8
/**
* \brief Different kinds of qualifier that can be used to modify the behaviour
* of the counter to be registered
*/
enum {
STATS_TYPE_NORMAL = 1,
STATS_TYPE_AVERAGE = 2,
STATS_TYPE_MAXIMUM = 3,
STATS_TYPE_FUNC = 4,
STATS_TYPE_MAX = 5,
};
/**
* \brief per thread store of counters
*/
typedef struct StatsThreadStore_ {
/** thread name used in output */
const char *name;
StatsPublicThreadContext *ctx;
StatsPublicThreadContext **head;
uint32_t size;
struct StatsThreadStore_ *next;
} StatsThreadStore;
/**
* \brief Holds the output interface context for the counter api
*/
typedef struct StatsGlobalContext_ {
/** list of thread stores: one per thread plus one global */
StatsThreadStore *sts;
SCMutex sts_lock;
int sts_cnt;
HashTable *counters_id_hash;
StatsPublicThreadContext global_counter_ctx;
} StatsGlobalContext;
static void *stats_thread_data = NULL;
static StatsGlobalContext *stats_ctx = NULL;
static time_t stats_start_time;
/** refresh interval in seconds */
static uint32_t stats_tts = STATS_MGMTT_TTS;
/** is the stats counter enabled? */
static char stats_enabled = TRUE;
static int StatsOutput(ThreadVars *tv);
static int StatsThreadRegister(const char *thread_name, StatsPublicThreadContext *);
void StatsReleaseCounters(StatsCounter *head);
/** stats table is filled each interval and passed to the
* loggers. Initialized at first use. */
static StatsTable stats_table = { NULL, NULL, 0, 0, 0, {0 , 0}};
static SCMutex stats_table_mutex = SCMUTEX_INITIALIZER;
static int stats_loggers_active = 1;
static uint16_t counters_global_id = 0;
static void StatsPublicThreadContextInit(StatsPublicThreadContext *t)
{
SCMutexInit(&t->m, NULL);
}
static void StatsPublicThreadContextCleanup(StatsPublicThreadContext *t)
{
SCMutexLock(&t->m);
StatsReleaseCounters(t->head);
t->head = NULL;
t->perf_flag = 0;
t->curr_id = 0;
SCMutexUnlock(&t->m);
SCMutexDestroy(&t->m);
}
/**
* \brief Adds a value of type uint64_t to the local counter.
*
* \param id ID of the counter as set by the API
* \param pca Counter array that holds the local counter for this TM
* \param x Value to add to this local counter
*/
void StatsAddUI64(ThreadVars *tv, uint16_t id, uint64_t x)
{
StatsPrivateThreadContext *pca = &tv->perf_private_ctx;
#ifdef UNITTESTS
if (pca->initialized == 0)
return;
#endif
#ifdef DEBUG
BUG_ON ((id < 1) || (id > pca->size));
#endif
pca->head[id].value += x;
pca->head[id].updates++;
return;
}
/**
* \brief Increments the local counter
*
* \param id Index of the counter in the counter array
* \param pca Counter array that holds the local counters for this TM
*/
void StatsIncr(ThreadVars *tv, uint16_t id)
{
StatsPrivateThreadContext *pca = &tv->perf_private_ctx;
#ifdef UNITTESTS
if (pca->initialized == 0)
return;
#endif
#ifdef DEBUG
BUG_ON ((id < 1) || (id > pca->size));
#endif
pca->head[id].value++;
pca->head[id].updates++;
return;
}
/**
* \brief Sets a value of type double to the local counter
*
* \param id Index of the local counter in the counter array
* \param pca Pointer to the StatsPrivateThreadContext
* \param x The value to set for the counter
*/
void StatsSetUI64(ThreadVars *tv, uint16_t id, uint64_t x)
{
StatsPrivateThreadContext *pca = &tv->perf_private_ctx;
#ifdef UNITTESTS
if (pca->initialized == 0)
return;
#endif
#ifdef DEBUG
BUG_ON ((id < 1) || (id > pca->size));
#endif
if ((pca->head[id].pc->type == STATS_TYPE_MAXIMUM) &&
(x > pca->head[id].value)) {
pca->head[id].value = x;
} else if (pca->head[id].pc->type == STATS_TYPE_NORMAL) {
pca->head[id].value = x;
}
pca->head[id].updates++;
return;
}
static ConfNode *GetConfig(void) {
ConfNode *stats = ConfGetNode("stats");
if (stats != NULL)
return stats;
ConfNode *root = ConfGetNode("outputs");
ConfNode *node = NULL;
if (root != NULL) {
TAILQ_FOREACH(node, &root->head, next) {
if (strcmp(node->val, "stats") == 0) {
return node->head.tqh_first;
}
}
}
return NULL;
}
/**
* \brief Initializes stats context
*/
static void StatsInitCtx(void)
{
SCEnter();
#ifdef AFLFUZZ_DISABLE_MGTTHREADS
stats_enabled = FALSE;
SCReturn;
#endif
ConfNode *stats = GetConfig();
if (stats != NULL) {
const char *enabled = ConfNodeLookupChildValue(stats, "enabled");
if (enabled != NULL && ConfValIsFalse(enabled)) {
stats_enabled = FALSE;
SCLogDebug("Stats module has been disabled");
SCReturn;
}
const char *interval = ConfNodeLookupChildValue(stats, "interval");
if (interval != NULL)
stats_tts = (uint32_t) atoi(interval);
}
if (!OutputStatsLoggersRegistered()) {
stats_loggers_active = 0;
/* if the unix command socket is enabled we do the background
* stats sync just in case someone runs 'dump-counters' */
if (!ConfUnixSocketIsEnable()) {
SCLogWarning(SC_WARN_NO_STATS_LOGGERS, "stats are enabled but no loggers are active");
stats_enabled = FALSE;
SCReturn;
}
}
/* Store the engine start time */
time(&stats_start_time);
/* init the lock used by StatsThreadStore */
if (SCMutexInit(&stats_ctx->sts_lock, NULL) != 0) {
SCLogError(SC_ERR_INITIALIZATION, "error initializing sts mutex");
exit(EXIT_FAILURE);
}
SCReturn;
}
/**
* \brief Releases the resources alloted to the output context of the
* Stats API
*/
static void StatsReleaseCtx()
{
if (stats_ctx == NULL) {
SCLogDebug("Counter module has been disabled");
return;
}
StatsThreadStore *sts = NULL;
StatsThreadStore *temp = NULL;
sts = stats_ctx->sts;
while (sts != NULL) {
if (sts->head != NULL)
SCFree(sts->head);
temp = sts->next;
SCFree(sts);
sts = temp;
}
if (stats_ctx->counters_id_hash != NULL) {
HashTableFree(stats_ctx->counters_id_hash);
stats_ctx->counters_id_hash = NULL;
counters_global_id = 0;
}
StatsPublicThreadContextCleanup(&stats_ctx->global_counter_ctx);
SCFree(stats_ctx);
stats_ctx = NULL;
SCMutexLock(&stats_table_mutex);
/* free stats table */
if (stats_table.tstats != NULL) {
SCFree(stats_table.tstats);
stats_table.tstats = NULL;
}
if (stats_table.stats != NULL) {
SCFree(stats_table.stats);
stats_table.stats = NULL;
}
memset(&stats_table, 0, sizeof(stats_table));
SCMutexUnlock(&stats_table_mutex);
return;
}
/**
* \brief management thread. This thread is responsible for writing the stats
*
* \param arg thread var
*
* \retval NULL This is the value that is always returned
*/
static void *StatsMgmtThread(void *arg)
{
/* block usr2. usr2 to be handled by the main thread only */
UtilSignalBlock(SIGUSR2);
ThreadVars *tv_local = (ThreadVars *)arg;
uint8_t run = 1;
struct timespec cond_time;
/* Set the thread name */
if (SCSetThreadName(tv_local->name) < 0) {
SCLogWarning(SC_ERR_THREAD_INIT, "Unable to set thread name");
}
if (tv_local->thread_setup_flags != 0)
TmThreadSetupOptions(tv_local);
/* Set the threads capability */
tv_local->cap_flags = 0;
SCDropCaps(tv_local);
if (stats_ctx == NULL) {
SCLogError(SC_ERR_STATS_NOT_INIT, "Stats API not init"
"StatsInitCounterApi() has to be called first");
TmThreadsSetFlag(tv_local, THV_CLOSED | THV_RUNNING_DONE);
return NULL;
}
TmModule *tm = &tmm_modules[TMM_STATSLOGGER];
BUG_ON(tm->ThreadInit == NULL);
int r = tm->ThreadInit(tv_local, NULL, &stats_thread_data);
if (r != 0 || stats_thread_data == NULL) {
SCLogError(SC_ERR_THREAD_INIT, "Stats API "
"ThreadInit failed");
TmThreadsSetFlag(tv_local, THV_CLOSED | THV_RUNNING_DONE);
return NULL;
}
SCLogDebug("stats_thread_data %p", &stats_thread_data);
TmThreadsSetFlag(tv_local, THV_INIT_DONE);
while (run) {
if (TmThreadsCheckFlag(tv_local, THV_PAUSE)) {
TmThreadsSetFlag(tv_local, THV_PAUSED);
TmThreadTestThreadUnPaused(tv_local);
TmThreadsUnsetFlag(tv_local, THV_PAUSED);
}
cond_time.tv_sec = time(NULL) + stats_tts;
cond_time.tv_nsec = 0;
/* wait for the set time, or until we are woken up by
* the shutdown procedure */
SCCtrlMutexLock(tv_local->ctrl_mutex);
SCCtrlCondTimedwait(tv_local->ctrl_cond, tv_local->ctrl_mutex, &cond_time);
SCCtrlMutexUnlock(tv_local->ctrl_mutex);
SCMutexLock(&stats_table_mutex);
StatsOutput(tv_local);
SCMutexUnlock(&stats_table_mutex);
if (TmThreadsCheckFlag(tv_local, THV_KILL)) {
run = 0;
}
}
TmThreadsSetFlag(tv_local, THV_RUNNING_DONE);
TmThreadWaitForFlag(tv_local, THV_DEINIT);
r = tm->ThreadDeinit(tv_local, stats_thread_data);
if (r != TM_ECODE_OK) {
SCLogError(SC_ERR_THREAD_DEINIT, "Stats Counter API "
"ThreadDeinit failed");
}
TmThreadsSetFlag(tv_local, THV_CLOSED);
return NULL;
}
/**
* \brief Wake up thread. This thread wakes up every TTS(time to sleep) seconds
* and sets the flag for every ThreadVars' StatsPublicThreadContext
*
* \param arg is NULL always
*
* \retval NULL This is the value that is always returned
*/
static void *StatsWakeupThread(void *arg)
{
/* block usr2. usr2 to be handled by the main thread only */
UtilSignalBlock(SIGUSR2);
ThreadVars *tv_local = (ThreadVars *)arg;
uint8_t run = 1;
ThreadVars *tv = NULL;
PacketQueue *q = NULL;
struct timespec cond_time;
/* Set the thread name */
if (SCSetThreadName(tv_local->name) < 0) {
SCLogWarning(SC_ERR_THREAD_INIT, "Unable to set thread name");
}
if (tv_local->thread_setup_flags != 0)
TmThreadSetupOptions(tv_local);
/* Set the threads capability */
tv_local->cap_flags = 0;
SCDropCaps(tv_local);
if (stats_ctx == NULL) {
SCLogError(SC_ERR_STATS_NOT_INIT, "Stats API not init"
"StatsInitCounterApi() has to be called first");
TmThreadsSetFlag(tv_local, THV_CLOSED | THV_RUNNING_DONE);
return NULL;
}
TmThreadsSetFlag(tv_local, THV_INIT_DONE);
while (run) {
if (TmThreadsCheckFlag(tv_local, THV_PAUSE)) {
TmThreadsSetFlag(tv_local, THV_PAUSED);
TmThreadTestThreadUnPaused(tv_local);
TmThreadsUnsetFlag(tv_local, THV_PAUSED);
}
cond_time.tv_sec = time(NULL) + STATS_WUT_TTS;
cond_time.tv_nsec = 0;
/* wait for the set time, or until we are woken up by
* the shutdown procedure */
SCCtrlMutexLock(tv_local->ctrl_mutex);
SCCtrlCondTimedwait(tv_local->ctrl_cond, tv_local->ctrl_mutex, &cond_time);
SCCtrlMutexUnlock(tv_local->ctrl_mutex);
tv = tv_root[TVT_PPT];
while (tv != NULL) {
if (tv->perf_public_ctx.head == NULL) {
tv = tv->next;
continue;
}
/* assuming the assignment of an int to be atomic, and even if it's
* not, it should be okay */
tv->perf_public_ctx.perf_flag = 1;
if (tv->inq != NULL) {
q = &trans_q[tv->inq->id];
SCCondSignal(&q->cond_q);
}
tv = tv->next;
}
/* mgt threads for flow manager */
tv = tv_root[TVT_MGMT];
while (tv != NULL) {
if (tv->perf_public_ctx.head == NULL) {
tv = tv->next;
continue;
}
/* assuming the assignment of an int to be atomic, and even if it's
* not, it should be okay */
tv->perf_public_ctx.perf_flag = 1;
tv = tv->next;
}
if (TmThreadsCheckFlag(tv_local, THV_KILL)) {
run = 0;
}
}
TmThreadsSetFlag(tv_local, THV_RUNNING_DONE);
TmThreadWaitForFlag(tv_local, THV_DEINIT);
TmThreadsSetFlag(tv_local, THV_CLOSED);
return NULL;
}
/**
* \brief Releases a counter
*
* \param pc Pointer to the StatsCounter to be freed
*/
static void StatsReleaseCounter(StatsCounter *pc)
{
if (pc != NULL) {
SCFree(pc);
}
return;
}
/**
* \brief Registers a counter.
*
* \param name Name of the counter, to be registered
* \param tm_name Thread module to which this counter belongs
* \param pctx StatsPublicThreadContext for this tm-tv instance
* \param type_q Qualifier describing the type of counter to be registered
*
* \retval the counter id for the newly registered counter, or the already
* present counter on success
* \retval 0 on failure
*/
static uint16_t StatsRegisterQualifiedCounter(char *name, char *tm_name,
StatsPublicThreadContext *pctx,
int type_q, uint64_t (*Func)(void))
{
StatsCounter **head = &pctx->head;
StatsCounter *temp = NULL;
StatsCounter *prev = NULL;
StatsCounter *pc = NULL;
if (name == NULL || pctx == NULL) {
SCLogDebug("Counter name, StatsPublicThreadContext NULL");
return 0;
}
temp = prev = *head;
while (temp != NULL) {
prev = temp;
if (strcmp(name, temp->name) == 0) {
break;
}
temp = temp->next;
}
/* We already have a counter registered by this name */
if (temp != NULL)
return(temp->id);
/* if we reach this point we don't have a counter registered by this name */
if ( (pc = SCMalloc(sizeof(StatsCounter))) == NULL)
return 0;
memset(pc, 0, sizeof(StatsCounter));
/* assign a unique id to this StatsCounter. The id is local to this
* thread context. Please note that the id start from 1, and not 0 */
pc->id = ++(pctx->curr_id);
pc->name = name;
pc->type = type_q;
pc->Func = Func;
/* we now add the counter to the list */
if (prev == NULL)
*head = pc;
else
prev->next = pc;
return pc->id;
}
/**
* \brief Copies the StatsCounter value from the local counter present in the
* StatsPrivateThreadContext to its corresponding global counterpart. Used
* internally by StatsUpdateCounterArray()
*
* \param pcae Pointer to the StatsPrivateThreadContext which holds the local
* versions of the counters
*/
static void StatsCopyCounterValue(StatsLocalCounter *pcae)
{
StatsCounter *pc = pcae->pc;
pc->value = pcae->value;
pc->updates = pcae->updates;
return;
}
/**
* \brief The output interface for the Stats API
*/
static int StatsOutput(ThreadVars *tv)
{
const StatsThreadStore *sts = NULL;
const StatsCounter *pc = NULL;
void *td = stats_thread_data;
if (counters_global_id == 0)
return -1;
if (stats_table.nstats == 0) {
StatsThreadRegister("Global", &stats_ctx->global_counter_ctx);
uint32_t nstats = counters_global_id;
stats_table.nstats = nstats;
stats_table.stats = SCCalloc(stats_table.nstats, sizeof(StatsRecord));
if (stats_table.stats == NULL) {
stats_table.nstats = 0;
SCLogError(SC_ERR_MEM_ALLOC, "could not alloc memory for stats");
return -1;
}
stats_table.ntstats = stats_ctx->sts_cnt;
uint32_t array_size = stats_table.nstats * sizeof(StatsRecord);
stats_table.tstats = SCCalloc(stats_table.ntstats, array_size);
if (stats_table.tstats == NULL) {
stats_table.ntstats = 0;
SCLogError(SC_ERR_MEM_ALLOC, "could not alloc memory for stats");
return -1;
}
stats_table.start_time = stats_start_time;
}
const uint16_t max_id = counters_global_id;
if (max_id == 0)
return -1;
/** temporary local table to merge the per thread counters,
* especially needed for the average counters */
struct CountersMergeTable {
int type;
uint64_t value;
uint64_t updates;
} merge_table[max_id];
memset(&merge_table, 0x00,
max_id * sizeof(struct CountersMergeTable));
int thread = stats_ctx->sts_cnt - 1;
StatsRecord *table = stats_table.stats;
/* Loop through the thread counter stores. The global counters
* are in a separate store inside this list. */
sts = stats_ctx->sts;
SCLogDebug("sts %p", sts);
while (sts != NULL) {
BUG_ON(thread < 0);
SCLogDebug("Thread %d %s ctx %p", thread, sts->name, sts->ctx);
/* temporay table for quickly storing the counters for this
* thread store, so that we can post process them outside
* of the thread store lock */
struct CountersMergeTable thread_table[max_id];
memset(&thread_table, 0x00,
max_id * sizeof(struct CountersMergeTable));
SCMutexLock(&sts->ctx->m);
pc = sts->ctx->head;
while (pc != NULL) {
SCLogDebug("Counter %s (%u:%u) value %"PRIu64,
pc->name, pc->id, pc->gid, pc->value);
thread_table[pc->gid].type = pc->type;
switch (pc->type) {
case STATS_TYPE_FUNC:
if (pc->Func != NULL)
thread_table[pc->gid].value = pc->Func();
break;
case STATS_TYPE_AVERAGE:
default:
thread_table[pc->gid].value = pc->value;
break;
}
thread_table[pc->gid].updates = pc->updates;
table[pc->gid].name = pc->name;
pc = pc->next;
}
SCMutexUnlock(&sts->ctx->m);
/* update merge table */
uint16_t c;
for (c = 0; c < max_id; c++) {
struct CountersMergeTable *e = &thread_table[c];
/* thread only sets type if it has a counter
* of this type. */
if (e->type == 0)
continue;
switch (e->type) {
case STATS_TYPE_MAXIMUM:
if (e->value > merge_table[c].value)
merge_table[c].value = e->value;
break;
case STATS_TYPE_FUNC:
merge_table[c].value = e->value;
break;
case STATS_TYPE_AVERAGE:
default:
merge_table[c].value += e->value;
break;
}
merge_table[c].updates += e->updates;
merge_table[c].type = e->type;
}
/* update per thread stats table */
for (c = 0; c < max_id; c++) {
struct CountersMergeTable *e = &thread_table[c];
/* thread only sets type if it has a counter
* of this type. */
if (e->type == 0)
continue;
uint32_t offset = (thread * stats_table.nstats) + c;
StatsRecord *r = &stats_table.tstats[offset];
/* xfer previous value to pvalue and reset value */
r->pvalue = r->value;
r->value = 0;
r->name = table[c].name;
r->tm_name = sts->name;
switch (e->type) {
case STATS_TYPE_AVERAGE:
if (e->value > 0 && e->updates > 0) {
r->value = (uint64_t)(e->value / e->updates);
}
break;
default:
r->value = e->value;
break;
}
}
sts = sts->next;
thread--;
}
/* transfer 'merge table' to final stats table */
uint16_t x;
for (x = 0; x < max_id; x++) {
/* xfer previous value to pvalue and reset value */
table[x].pvalue = table[x].value;
table[x].value = 0;
table[x].tm_name = "Total";
struct CountersMergeTable *m = &merge_table[x];
switch (m->type) {
case STATS_TYPE_MAXIMUM:
if (m->value > table[x].value)
table[x].value = m->value;
break;
case STATS_TYPE_AVERAGE:
if (m->value > 0 && m->updates > 0) {
table[x].value = (uint64_t)(m->value / m->updates);
}
break;
default:
table[x].value += m->value;
break;
}
}
/* invoke logger(s) */
if (stats_loggers_active) {
OutputStatsLog(tv, td, &stats_table);
}
return 1;
}
#ifdef BUILD_UNIX_SOCKET
/** \brief callback for getting stats into unix socket
*/
TmEcode StatsOutputCounterSocket(json_t *cmd,
json_t *answer, void *data)
{
json_t *message = NULL;
TmEcode r = TM_ECODE_OK;
SCMutexLock(&stats_table_mutex);
if (stats_table.start_time == 0) {
r = TM_ECODE_FAILED;
message = json_string("stats not yet synchronized");
} else {
message = StatsToJSON(&stats_table, JSON_STATS_TOTALS|JSON_STATS_THREADS);
}
SCMutexUnlock(&stats_table_mutex);
json_object_set_new(answer, "message", message);
return r;
}
#endif /* BUILD_UNIX_SOCKET */
/**
* \brief Initializes the perf counter api. Things are hard coded currently.
* More work to be done when we implement multiple interfaces
*/
void StatsInit(void)
{
BUG_ON(stats_ctx != NULL);
if ( (stats_ctx = SCMalloc(sizeof(StatsGlobalContext))) == NULL) {
SCLogError(SC_ERR_FATAL, "Fatal error encountered in StatsInitCtx. Exiting...");
exit(EXIT_FAILURE);
}
memset(stats_ctx, 0, sizeof(StatsGlobalContext));
StatsPublicThreadContextInit(&stats_ctx->global_counter_ctx);
}
void StatsSetupPostConfig(void)
{
StatsInitCtx();
}
/**
* \brief Spawns the wakeup, and the management thread used by the stats api
*
* The threads use the condition variable in the thread vars to control
* their wait loops to make sure the main thread can quickly kill them.
*/
void StatsSpawnThreads(void)
{
SCEnter();
if (!stats_enabled) {
SCReturn;
}
ThreadVars *tv_wakeup = NULL;
ThreadVars *tv_mgmt = NULL;
/* spawn the stats wakeup thread */
tv_wakeup = TmThreadCreateMgmtThread(thread_name_counter_wakeup,
StatsWakeupThread, 1);
if (tv_wakeup == NULL) {
SCLogError(SC_ERR_THREAD_CREATE, "TmThreadCreateMgmtThread "
"failed");
exit(EXIT_FAILURE);
}
if (TmThreadSpawn(tv_wakeup) != 0) {
SCLogError(SC_ERR_THREAD_SPAWN, "TmThreadSpawn failed for "
"StatsWakeupThread");
exit(EXIT_FAILURE);
}
/* spawn the stats mgmt thread */
tv_mgmt = TmThreadCreateMgmtThread(thread_name_counter_stats,
StatsMgmtThread, 1);
if (tv_mgmt == NULL) {
SCLogError(SC_ERR_THREAD_CREATE,
"TmThreadCreateMgmtThread failed");
exit(EXIT_FAILURE);
}
if (TmThreadSpawn(tv_mgmt) != 0) {
SCLogError(SC_ERR_THREAD_SPAWN, "TmThreadSpawn failed for "
"StatsWakeupThread");
exit(EXIT_FAILURE);
}
SCReturn;
}
/**
* \brief Registers a normal, unqualified counter
*
* \param name Name of the counter, to be registered
* \param tv Pointer to the ThreadVars instance for which the counter would
* be registered
*
* \retval id Counter id for the newly registered counter, or the already
* present counter
*/
uint16_t StatsRegisterCounter(char *name, struct ThreadVars_ *tv)
{
uint16_t id = StatsRegisterQualifiedCounter(name,
(tv->thread_group_name != NULL) ? tv->thread_group_name : tv->name,
&tv->perf_public_ctx,
STATS_TYPE_NORMAL, NULL);
return id;
}
/**
* \brief Registers a counter, whose value holds the average of all the values
* assigned to it.
*
* \param name Name of the counter, to be registered
* \param tv Pointer to the ThreadVars instance for which the counter would
* be registered
*
* \retval id Counter id for the newly registered counter, or the already
* present counter
*/
uint16_t StatsRegisterAvgCounter(char *name, struct ThreadVars_ *tv)
{
uint16_t id = StatsRegisterQualifiedCounter(name,
(tv->thread_group_name != NULL) ? tv->thread_group_name : tv->name,
&tv->perf_public_ctx,
STATS_TYPE_AVERAGE, NULL);
return id;
}
/**
* \brief Registers a counter, whose value holds the maximum of all the values
* assigned to it.
*
* \param name Name of the counter, to be registered
* \param tv Pointer to the ThreadVars instance for which the counter would
* be registered
*
* \retval the counter id for the newly registered counter, or the already
* present counter
*/
uint16_t StatsRegisterMaxCounter(char *name, struct ThreadVars_ *tv)
{
uint16_t id = StatsRegisterQualifiedCounter(name,
(tv->thread_group_name != NULL) ? tv->thread_group_name : tv->name,
&tv->perf_public_ctx,
STATS_TYPE_MAXIMUM, NULL);
return id;
}
/**
* \brief Registers a counter, which represents a global value
*
* \param name Name of the counter, to be registered
* \param Func Function Pointer returning a uint64_t
*
* \retval id Counter id for the newly registered counter, or the already
* present counter
*/
uint16_t StatsRegisterGlobalCounter(char *name, uint64_t (*Func)(void))
{
#ifdef UNITTESTS
if (stats_ctx == NULL)
return 0;
#else
BUG_ON(stats_ctx == NULL);
#endif
uint16_t id = StatsRegisterQualifiedCounter(name, NULL,
&(stats_ctx->global_counter_ctx),
STATS_TYPE_FUNC,
Func);
return id;
}
typedef struct CountersIdType_ {
uint16_t id;
const char *string;
} CountersIdType;
uint32_t CountersIdHashFunc(HashTable *ht, void *data, uint16_t datalen)
{
CountersIdType *t = (CountersIdType *)data;
uint32_t hash = 0;
int i = 0;
int len = strlen(t->string);
for (i = 0; i < len; i++)
hash += tolower((unsigned char)t->string[i]);
hash = hash % ht->array_size;
return hash;
}
char CountersIdHashCompareFunc(void *data1, uint16_t datalen1,
void *data2, uint16_t datalen2)
{
CountersIdType *t1 = (CountersIdType *)data1;
CountersIdType *t2 = (CountersIdType *)data2;
int len1 = 0;
int len2 = 0;
if (t1 == NULL || t2 == NULL)
return 0;
if (t1->string == NULL || t2->string == NULL)
return 0;
len1 = strlen(t1->string);
len2 = strlen(t2->string);
if (len1 == len2 && memcmp(t1->string, t2->string, len1) == 0) {