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#ifndef _LIGHTTPD_WORKER_H_
#define _LIGHTTPD_WORKER_H_
#ifndef _LIGHTTPD_BASE_H_
#error Please include <lighttpd/base.h> instead of this file
#endif
#include <lighttpd/tasklet.h>
#include <lighttpd/events.h>
struct lua_State;
typedef struct liStatistics liStatistics;
struct liStatistics {
guint64 bytes_out; /** bytes transfered, outgoing */
guint64 bytes_in; /** bytes transfered, incoming */
guint64 requests; /** processed requests */
guint64 active_cons_cum; /** cummulative value of active connections, updated once a second */
guint64 actions_executed; /** actions executed */
/* 5 seconds frame avg */
guint64 requests_5s;
guint64 requests_5s_diff;
guint64 bytes_out_5s;
guint64 bytes_out_5s_diff;
guint64 bytes_in_5s;
guint64 bytes_in_5s_diff;
guint active_cons_5s;
li_tstamp last_avg;
/* peak values from 5s avg */
struct {
guint64 requests;
guint64 bytes_out;
guint64 bytes_in;
guint active_cons;
} peak;
/* updated in timer */
guint64 last_requests;
double requests_per_sec;
li_tstamp last_update;
};
typedef struct liWorkerTS liWorkerTS;
struct liWorkerTS {
time_t last_generated;
GString *str;
};
struct liWorker {
liServer *srv;
GThread *thread; /* managed by server.c */
guint ndx; /* worker index */
liLuaState LL;
liEventLoop loop;
liEventPrepare loop_prepare;
/* ev_check loop_check; */
liEventAsync worker_stop_watcher, worker_stopping_watcher, worker_suspend_watcher, worker_exit_watcher;
liLogWorkerData logs;
guint connections_active; /** 0..con_act-1: active connections, con_act..used-1: free connections
* use with atomic, read direct from local worker context
*/
guint connections_active_max_5min; /** max() of active connections during the last 5 minutes */
GArray *connections; /** array of (connection*), use only from local worker context */
ev_tstamp connections_gc_ts;
GString *tmp_str; /**< can be used everywhere for local temporary needed strings */
/* keep alive timeout queue */
liEventTimer keep_alive_timer;
GQueue keep_alive_queue;
liWaitQueue io_timeout_queue;
liWaitQueue throttle_queue;
guint connection_load; /** incremented by server_accept_cb, decremented by worker_con_put. use atomic access */
GArray *timestamps_gmt; /** array of (worker_ts), use only from local worker context and through li_worker_current_timestamp(wrk, LI_GMTIME, ndx) */
GArray *timestamps_local;
/* incoming queues */
/* - new connections (after accept) */
liEventAsync new_con_watcher;
GAsyncQueue *new_con_queue;
liServerStateWait wait_for_stop_connections;
liEventTimer stats_watcher;
liStatistics stats;
/* collect framework */
liEventAsync collect_watcher;
GAsyncQueue *collect_queue;
liTaskletPool *tasklets;
liStatCache *stat_cache;
liBuffer *network_read_buf; /** available buffer - steal it if you need it, can be NULL. refcount must be 1, no other references. */
};
LI_API liWorker* li_worker_new(liServer *srv, struct ev_loop *loop);
LI_API struct ev_loop* li_worker_free(liWorker *wrk);
LI_API void li_worker_run(liWorker *wrk);
LI_API void li_worker_stop(liWorker *context, liWorker *wrk);
LI_API void li_worker_stopping(liWorker *context, liWorker *wrk);
LI_API void li_worker_suspend(liWorker *context, liWorker *wrk);
LI_API void li_worker_exit(liWorker *context, liWorker *wrk);
LI_API void li_worker_new_con(liWorker *ctx, liWorker *wrk, liSocketAddress remote_addr, int s, liServerSocket *srv_sock);
LI_API void li_worker_check_keepalive(liWorker *wrk);
LI_API GString* li_worker_current_timestamp(liWorker *wrk, liTimeFunc, guint format_ndx);
/* shutdown write and wait for eof before shutdown read and close */
LI_API void li_worker_add_closing_socket(liWorker *wrk, int fd);
/* internal function to recycle connection */
LI_API void li_worker_con_put(liConnection *con);
INLINE li_tstamp li_cur_ts(liWorker *wrk);
INLINE liWorker* li_worker_from_iostream(liIOStream *stream);
INLINE liWorker* li_worker_from_stream(liStream *stream);
/* inline implementations */
INLINE li_tstamp li_cur_ts(liWorker *wrk) {
return li_event_now(&wrk->loop);
}
INLINE liWorker* li_worker_from_stream(liStream *stream) {
if (NULL == stream->loop) return NULL;
return LI_CONTAINER_OF(stream->loop, liWorker, loop);
}
INLINE liWorker* li_worker_from_iostream(liIOStream *stream) {
liWorker* wrk;
wrk = li_worker_from_stream(&stream->stream_in);
if (NULL != wrk) return wrk;
wrk = li_worker_from_stream(&stream->stream_out);
if (NULL != wrk) return wrk;
{
liEventLoop *loop = li_event_get_loop(&stream->io_watcher);
if (NULL == loop) return NULL;
return LI_CONTAINER_OF(loop, liWorker, loop);
}
}
#endif