Status: fixed error in connection statistics.

When proxy is used, the number of accepted connections is not counted,
This also results in the wrong number of active connections.

Implemented basic statistics API.

Fixed memory leak occurring upon failure to accept a connection.

Using event engine memory buffers in HTTP/1 layer.

Fixed timer and event race condition.

When idle timeout occurs at the same time as a request comes in,
the timer handler closes connection while the read event triggers
request processing, and this

Fixed timer and event race condition.

When idle timeout occurs at the same time as a request comes in,
the timer handler closes connection while the read event triggers
request processing, and this eventually leads to segmentation fault.

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Handling of timers with bias.

Timers that don't require maximum precision (most of them, actually) can be
triggered earlier or later within the bias interval.

To reduce wakeups by timers, the expir

Handling of timers with bias.

Timers that don't require maximum precision (most of them, actually) can be
triggered earlier or later within the bias interval.

To reduce wakeups by timers, the expire function now triggers not only all
timers that fall within the elapsed time, but also those whose bias falls
within this interval.

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Added SSL/TLS support on connection level.

Fixed keep-alive hanging after reconfiguration.

Introducing connection state io_read_handler.

HTTP keep-alive connections support.

A number of engine connections is decreased on connection close.

Router: fixed segfault after configuration change.

Storing memory cache slot hint inside nxt_sockaddr_t.

Event engine memory cache for nxt_sockaddr_t.

Introducing event engine memory cache and using the cache for
nxt_sockaddr_t structures.

Introducing application timeout.

Removed configure option --no-threads.

Fixed building on Solaris by Sun C.

Request-app link introduced to prevent mp destroy for penging requests.

nxt_req_conn_link_t still used for lookup connection by request id.
New nxt_req_app_link_t (ra) allocated from conn->mem_pool

Request-app link introduced to prevent mp destroy for penging requests.

nxt_req_conn_link_t still used for lookup connection by request id.
New nxt_req_app_link_t (ra) allocated from conn->mem_pool using mp_retain().
ra stored in app->requests if there is no free worker to process request.

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Port allocation and destroy changed. Worker process stop introduced.

New process port exchange changed. READY message type introduced.

Application process start request DATA message from router to master.
Master notifies router via NEW_PORT message after worker proce

New process port exchange changed. READY message type introduced.

Application process start request DATA message from router to master.
Master notifies router via NEW_PORT message after worker process become ready.

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Build on Solaris 11 fixed.

Added basic HTTP request processing in router.

- request to connection mapping in engine;
- requests queue in connection;
- engine port creation;
- connected ports hash for each process;
- engine po

Added basic HTTP request processing in router.

- request to connection mapping in engine;
- requests queue in connection;
- engine port creation;
- connected ports hash for each process;
- engine port data messages processing (app responses);

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Using new memory pool implementation.

nxt_event_conn_... functions and structures have been renamed
to nxt_conn_...