rpc_state* add_cb(rpc_state *state) {
// Do nothing
//uint32_t j = apr_atomic_add32(&n_rpc_, 1);
uint32_t *res = (uint32_t*) state->raw_input;
uint32_t k = *res;
n_callbacks_[k] += 1;
LOG_DEBUG("client callback exceuted. rpc no: %d", n_rpc_);
if (n_callbacks_[k] == max_rpc_) {
if (apr_atomic_dec32(&n_active_cli_) == 0) {
tm_end_ = apr_time_now();
apr_thread_mutex_lock(mx_rpc_);
apr_thread_cond_signal(cd_rpc_);
apr_thread_mutex_unlock(mx_rpc_);
}
}
if (n_callbacks_[k] % 1000000 == 0) {
apr_atomic_add32(&n_rpc_, 1000000);
tm_middle_ = apr_time_now();
uint64_t p = tm_middle_ - tm_begin_;
double rate = n_rpc_ * 1.0 / p;
LOG_INFO("rpc rate: %0.2f million per second", rate);
}
// do another rpc.
if (max_rpc_ < 0 || n_issues_[k] < max_rpc_) {
n_issues_[k]++;
call_add(clis_[k], k);
}
return NULL;
}
SWITCH_DECLARE(void) switch_atomic_add(volatile switch_atomic_t *mem, uint32_t val)
{
#ifdef apr_atomic_t
apr_atomic_add((apr_atomic_t *)mem, val);
#else
apr_atomic_add32((apr_uint32_t *)mem, val);
#endif
}
static void test_add32(abts_case *tc, void *data)
{
apr_uint32_t oldval;
apr_uint32_t y32;
apr_atomic_set32(&y32, 23);
oldval = apr_atomic_add32(&y32, 4);
ABTS_INT_EQUAL(tc, 23, oldval);
ABTS_INT_EQUAL(tc, 27, y32);
}
apr_status_t ap_queue_info_try_get_idler(fd_queue_info_t * queue_info)
{
apr_int32_t new_idlers;
new_idlers = apr_atomic_add32(&(queue_info->idlers), -1) - zero_pt;
if (--new_idlers <= 0) {
apr_atomic_inc32(&(queue_info->idlers)); /* back out dec */
return APR_EAGAIN;
}
return APR_SUCCESS;
}
static void test_set_add_inc_sub(abts_case *tc, void *data)
{
apr_uint32_t y32;
apr_atomic_set32(&y32, 0);
apr_atomic_add32(&y32, 20);
apr_atomic_inc32(&y32);
apr_atomic_sub32(&y32, 10);
ABTS_INT_EQUAL(tc, 11, y32);
}
static void busyloop_add32(tbox_t *tbox)
{
apr_uint32_t val;
do {
busyloop_read32(tbox);
val = apr_atomic_add32(tbox->mem, tbox->postval);
apr_thread_mutex_lock(thread_lock);
ABTS_INT_EQUAL(tbox->tc, val, tbox->preval);
apr_thread_mutex_unlock(thread_lock);
} while (--tbox->loop);
}
void * APR_THREAD_FUNC thread_func_atomic(apr_thread_t *thd, void *data)
{
int i;
for (i = 0; i < NUM_ITERATIONS ; i++) {
apr_atomic_inc32(&y);
apr_atomic_add32(&y, 2);
apr_atomic_dec32(&y);
apr_atomic_dec32(&y);
}
apr_thread_exit(thd, exit_ret_val);
return NULL;
}
void
server_add_stat(dav_rawx_server_conf *conf, const char *n, apr_uint32_t value, apr_uint32_t duration)
{
struct shm_stats_s *shm_stats;
if (!n)
return;
if (!conf->shm.handle || !conf->lock.handle) { /* This should never happen! */
#ifdef HAVE_EXTRA_DEBUG
abort();
#else
return;
#endif
}
if (!n[0] || !n[1] || n[2]!='\0') { /* strlen(n)!=2 */
#ifdef HAVE_EXTRA_DEBUG
abort();
#else
return;
#endif
}
apr_global_mutex_lock(conf->lock.handle);
shm_stats = apr_shm_baseaddr_get(conf->shm.handle);
apr_global_mutex_unlock(conf->lock.handle);
/* increase the appropriated counter */
if (shm_stats) {
switch (*n) {
case 'q':
switch (n[1]) {
case '0':
apr_atomic_add32(&(shm_stats->body.req_all), value);
if(duration > 0) {
apr_atomic_add32(&(shm_stats->body.time_all), duration);
rawx_stats_rrd_push(&(shm_stats->body.rrd_req_sec), shm_stats->body.req_all);
rawx_stats_rrd_push(&(shm_stats->body.rrd_duration), shm_stats->body.time_all);
}
break;
case '1':
apr_atomic_add32(&(shm_stats->body.req_chunk_get), value);
if(duration > 0) {
apr_atomic_add32(&(shm_stats->body.time_get), duration);
rawx_stats_rrd_push(&(shm_stats->body.rrd_req_get_sec), shm_stats->body.req_chunk_get);
rawx_stats_rrd_push(&(shm_stats->body.rrd_get_duration), shm_stats->body.time_get);
}
break;
case '2':
apr_atomic_add32(&(shm_stats->body.req_chunk_put), value);
if(duration > 0) {
apr_atomic_add32(&(shm_stats->body.time_put), duration);
rawx_stats_rrd_push(&(shm_stats->body.rrd_req_put_sec), shm_stats->body.req_chunk_put);
rawx_stats_rrd_push(&(shm_stats->body.rrd_put_duration), shm_stats->body.time_put);
}
break;
case '3':
apr_atomic_add32(&(shm_stats->body.req_chunk_del), value);
if(duration > 0) {
apr_atomic_add32(&(shm_stats->body.time_del), duration);
rawx_stats_rrd_push(&(shm_stats->body.rrd_req_del_sec), shm_stats->body.req_chunk_del);
rawx_stats_rrd_push(&(shm_stats->body.rrd_del_duration), shm_stats->body.time_del);
}
break;
case '4': apr_atomic_add32(&(shm_stats->body.req_stat), value); break;
case '5': apr_atomic_add32(&(shm_stats->body.req_info), value); break;
case '6': apr_atomic_add32(&(shm_stats->body.req_raw), value); break;
case '7': apr_atomic_add32(&(shm_stats->body.req_other), value); break;
}
break;
case 'r':
switch (n[1]) {
case '1': apr_atomic_add32(&(shm_stats->body.rep_2XX), value); break;
case '2': apr_atomic_add32(&(shm_stats->body.rep_4XX), value); break;
case '3': apr_atomic_add32(&(shm_stats->body.rep_5XX), value); break;
case '4': apr_atomic_add32(&(shm_stats->body.rep_other), value); break;
case '5': apr_atomic_add32(&(shm_stats->body.rep_403), value); break;
case '6': apr_atomic_add32(&(shm_stats->body.rep_404), value); break;
case '7': apr_atomic_add32(&(shm_stats->body.rep_bread), value); break;
case '8': apr_atomic_add32(&(shm_stats->body.rep_bwritten), value); break;
}
break;
}
}
}
void
server_add_stat(dav_rainx_server_conf *conf, const char *n, apr_uint32_t value, apr_uint32_t duration)
{
EXTRA_ASSERT(NULL != conf->shm.handle);
EXTRA_ASSERT(NULL != conf->lock.handle);
EXTRA_ASSERT(n && n[0] && n[1]);
apr_global_mutex_lock(conf->lock.handle);
struct shm_stats_s *shm_stats = apr_shm_baseaddr_get(conf->shm.handle);
apr_global_mutex_unlock(conf->lock.handle);
if (!shm_stats)
return;
switch (*n) {
case 'q':
switch (n[1]) {
case '0':
apr_atomic_add32(&(shm_stats->body.req_all), value);
if (duration > 0)
apr_atomic_add32(&(shm_stats->body.time_all), duration);
break;
case '1':
apr_atomic_add32(&(shm_stats->body.req_chunk_get), value);
if (duration > 0)
apr_atomic_add32(&(shm_stats->body.time_get), duration);
break;
case '2':
apr_atomic_add32(&(shm_stats->body.req_chunk_put), value);
if (duration > 0)
apr_atomic_add32(&(shm_stats->body.time_put), duration);
break;
case '3':
apr_atomic_add32(&(shm_stats->body.req_chunk_del), value);
if (duration > 0)
apr_atomic_add32(&(shm_stats->body.time_del), duration);
break;
case '4':
apr_atomic_add32(&(shm_stats->body.req_stat), value);
if (duration > 0)
apr_atomic_add32(&(shm_stats->body.time_stat), value);
break;
case '5':
apr_atomic_add32(&(shm_stats->body.req_info), value);
if (duration > 0)
apr_atomic_add32(&(shm_stats->body.time_info), value);
break;
case '6':
apr_atomic_add32(&(shm_stats->body.req_raw), value);
if (duration > 0)
apr_atomic_add32(&(shm_stats->body.time_raw), value);
break;
case '7':
apr_atomic_add32(&(shm_stats->body.req_other), value);
if (duration > 0)
apr_atomic_add32(&(shm_stats->body.time_other), value);
break;
}
break;
case 'r':
switch (n[1]) {
case '1': apr_atomic_add32(&(shm_stats->body.rep_2XX), value); break;
case '2': apr_atomic_add32(&(shm_stats->body.rep_4XX), value); break;
case '3': apr_atomic_add32(&(shm_stats->body.rep_5XX), value); break;
case '4': apr_atomic_add32(&(shm_stats->body.rep_other), value); break;
case '5': apr_atomic_add32(&(shm_stats->body.rep_403), value); break;
case '6': apr_atomic_add32(&(shm_stats->body.rep_404), value); break;
case '7': apr_atomic_add32(&(shm_stats->body.rep_bread), value); break;
case '8': apr_atomic_add32(&(shm_stats->body.rep_bwritten), value); break;
}
break;
}
}
APR_DECLARE(apr_uint32_t) apr_atomic_inc32(volatile apr_uint32_t *mem)
{
return apr_atomic_add32(mem, 1);
}
apr_status_t ap_queue_info_wait_for_idler(fd_queue_info_t * queue_info,
int *had_to_block)
{
apr_status_t rv;
apr_int32_t prev_idlers;
/* Atomically decrement the idle worker count, saving the old value */
/* See TODO in ap_queue_info_set_idle() */
prev_idlers = apr_atomic_add32(&(queue_info->idlers), -1) - zero_pt;
/* Block if there weren't any idle workers */
if (prev_idlers <= 0) {
rv = apr_thread_mutex_lock(queue_info->idlers_mutex);
if (rv != APR_SUCCESS) {
AP_DEBUG_ASSERT(0);
/* See TODO in ap_queue_info_set_idle() */
apr_atomic_inc32(&(queue_info->idlers)); /* back out dec */
return rv;
}
/* Re-check the idle worker count to guard against a
* race condition. Now that we're in the mutex-protected
* region, one of two things may have happened:
* - If the idle worker count is still negative, the
* workers are all still busy, so it's safe to
* block on a condition variable.
* - If the idle worker count is non-negative, then a
* worker has become idle since the first check
* of queue_info->idlers above. It's possible
* that the worker has also signaled the condition
* variable--and if so, the listener missed it
* because it wasn't yet blocked on the condition
* variable. But if the idle worker count is
* now non-negative, it's safe for this function to
* return immediately.
*
* A "negative value" (relative to zero_pt) in
* queue_info->idlers tells how many
* threads are waiting on an idle worker.
*/
if (queue_info->idlers < zero_pt) {
*had_to_block = 1;
rv = apr_thread_cond_wait(queue_info->wait_for_idler,
queue_info->idlers_mutex);
if (rv != APR_SUCCESS) {
apr_status_t rv2;
AP_DEBUG_ASSERT(0);
rv2 = apr_thread_mutex_unlock(queue_info->idlers_mutex);
if (rv2 != APR_SUCCESS) {
return rv2;
}
return rv;
}
}
rv = apr_thread_mutex_unlock(queue_info->idlers_mutex);
if (rv != APR_SUCCESS) {
return rv;
}
}
if (queue_info->terminated) {
return APR_EOF;
}
else {
return APR_SUCCESS;
}
}
