135 lines
3.7 KiB
C++
135 lines
3.7 KiB
C++
/*
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* nghttp2 - HTTP/2 C Library
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SHRPX_WORKER_H
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#define SHRPX_WORKER_H
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#include "shrpx.h"
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#include <mutex>
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#include <deque>
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#include <vector>
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#include <thread>
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#ifndef NOTHREADS
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#include <future>
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#endif // NOTHREADS
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#include <openssl/ssl.h>
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#include <openssl/err.h>
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#include <ev.h>
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#include "shrpx_config.h"
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#include "shrpx_downstream_connection_pool.h"
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namespace shrpx {
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class Http2Session;
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class ConnectBlocker;
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namespace ssl {
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class CertLookupTree;
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} // namespace ssl
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struct WorkerStat {
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WorkerStat() : num_connections(0), next_downstream(0) {}
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size_t num_connections;
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// Next downstream index in Config::downstream_addrs. For HTTP/2
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// downstream connections, this is always 0. For HTTP/1, this is
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// used as load balancing.
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size_t next_downstream;
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};
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enum WorkerEventType {
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NEW_CONNECTION = 0x01,
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REOPEN_LOG = 0x02,
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GRACEFUL_SHUTDOWN = 0x03,
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RENEW_TICKET_KEYS = 0x04,
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};
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struct WorkerEvent {
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WorkerEventType type;
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struct {
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sockaddr_union client_addr;
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size_t client_addrlen;
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int client_fd;
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};
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std::shared_ptr<TicketKeys> ticket_keys;
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};
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class Worker {
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public:
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Worker(struct ev_loop *loop, SSL_CTX *sv_ssl_ctx, SSL_CTX *cl_ssl_ctx,
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ssl::CertLookupTree *cert_tree,
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const std::shared_ptr<TicketKeys> &ticket_keys);
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~Worker();
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void run_async();
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void wait();
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void process_events();
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void send(const WorkerEvent &event);
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ssl::CertLookupTree *get_cert_lookup_tree() const;
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const std::shared_ptr<TicketKeys> &get_ticket_keys() const;
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void set_ticket_keys(std::shared_ptr<TicketKeys> ticket_keys);
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WorkerStat *get_worker_stat();
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DownstreamConnectionPool *get_dconn_pool();
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Http2Session *next_http2_session();
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ConnectBlocker *get_connect_blocker() const;
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struct ev_loop *get_loop() const;
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SSL_CTX *get_sv_ssl_ctx() const;
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SSL_CTX *get_cl_ssl_ctx() const;
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void set_graceful_shutdown(bool f);
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bool get_graceful_shutdown() const;
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private:
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std::vector<std::unique_ptr<Http2Session>> http2sessions_;
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size_t next_http2session_;
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#ifndef NOTHREADS
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std::future<void> fut_;
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#endif // NOTHREADS
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std::mutex m_;
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std::deque<WorkerEvent> q_;
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ev_async w_;
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DownstreamConnectionPool dconn_pool_;
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WorkerStat worker_stat_;
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struct ev_loop *loop_;
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// Following fields are shared across threads if
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// get_config()->tls_ctx_per_worker == true.
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SSL_CTX *sv_ssl_ctx_;
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SSL_CTX *cl_ssl_ctx_;
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ssl::CertLookupTree *cert_tree_;
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std::shared_ptr<TicketKeys> ticket_keys_;
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std::unique_ptr<ConnectBlocker> connect_blocker_;
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bool graceful_shutdown_;
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};
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} // namespace shrpx
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#endif // SHRPX_WORKER_H
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