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e4611af52b
mod_http2: less and more granular mutex use for improved performance. git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1790284 13f79535-47bb-0310-9956-ffa450edef68
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/* Copyright 2015 greenbytes GmbH (https://www.greenbytes.de)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __mod_h2__h2_workers__
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#define __mod_h2__h2_workers__
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/* Thread pool specific to executing h2_tasks. Has a minimum and maximum
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* number of workers it creates. Starts with minimum workers and adds
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* some on load, reduces the number again when idle.
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*
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*/
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struct apr_thread_mutex_t;
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struct apr_thread_cond_t;
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struct h2_mplx;
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struct h2_request;
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struct h2_task;
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struct h2_fifo;
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struct h2_slot;
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typedef struct h2_workers h2_workers;
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struct h2_workers {
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server_rec *s;
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apr_pool_t *pool;
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int next_worker_id;
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int min_workers;
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int max_workers;
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int max_idle_secs;
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int aborted;
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int dynamic;
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apr_threadattr_t *thread_attr;
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int nslots;
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struct h2_slot *slots;
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volatile apr_uint32_t worker_count;
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struct h2_slot *free;
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struct h2_slot *idle;
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struct h2_slot *zombies;
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struct h2_fifo *mplxs;
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struct apr_thread_mutex_t *lock;
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};
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/* Create a worker pool with the given minimum and maximum number of
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* threads.
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*/
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h2_workers *h2_workers_create(server_rec *s, apr_pool_t *pool,
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int min_size, int max_size, int idle_secs);
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/**
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* Registers a h2_mplx for task scheduling. If this h2_mplx runs
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* out of tasks, it will be automatically be unregistered. Should
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* new tasks arrive, it needs to be registered again.
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*/
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apr_status_t h2_workers_register(h2_workers *workers, struct h2_mplx *m);
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/**
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* Remove a h2_mplx from the worker registry.
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*/
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apr_status_t h2_workers_unregister(h2_workers *workers, struct h2_mplx *m);
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#endif /* defined(__mod_h2__h2_workers__) */
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