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/* Copyright 2015 greenbytes GmbH (https://www.greenbytes.de)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <assert.h>
#include <apr_thread_cond.h>
#include <mpm_common.h>
#include <httpd.h>
#include <http_core.h>
#include <http_log.h>
#include "h2.h"
#include "h2_private.h"
#include "h2_conn.h"
#include "h2_ctx.h"
#include "h2_h2.h"
#include "h2_mplx.h"
#include "h2_task.h"
#include "h2_worker.h"
static void* APR_THREAD_FUNC execute(apr_thread_t *thread, void *wctx)
{
h2_worker *worker = (h2_worker *)wctx;
int sticky;
while (!worker->aborted) {
h2_task *task;
/* Get a h2_task from the main workers queue. */
worker->get_next(worker, worker->ctx, &task, &sticky);
while (task) {
h2_task_do(task, thread);
/* report the task done and maybe get another one from the same
* mplx (= master connection), if we can be sticky.
*/
if (sticky && !worker->aborted) {
h2_mplx_task_done(task->mplx, task, &task);
}
else {
h2_mplx_task_done(task->mplx, task, NULL);
task = NULL;
}
}
}
worker->worker_done(worker, worker->ctx);
return NULL;
}
h2_worker *h2_worker_create(int id,
apr_pool_t *pool,
apr_threadattr_t *attr,
h2_worker_mplx_next_fn *get_next,
h2_worker_done_fn *worker_done,
void *ctx)
{
h2_worker *w = apr_pcalloc(pool, sizeof(h2_worker));
if (w) {
w->id = id;
APR_RING_ELEM_INIT(w, link);
w->get_next = get_next;
w->worker_done = worker_done;
w->ctx = ctx;
apr_thread_create(&w->thread, attr, execute, w, pool);
}
return w;
}
apr_status_t h2_worker_destroy(h2_worker *worker)
{
if (worker->thread) {
apr_status_t status;
apr_thread_join(&status, worker->thread);
worker->thread = NULL;
}
return APR_SUCCESS;
}
void h2_worker_abort(h2_worker *worker)
{
worker->aborted = 1;
}
int h2_worker_is_aborted(h2_worker *worker)
{
return worker->aborted;
}
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