Changeset 74863

Timestamp:

Oct 9, 2011, 9:59:57 PM (11 years ago)

Author:

chris_kohlhoff

Message:

Merge from trunk...

Fix compile error in regex overload of async_read_until.hpp. Fixes #5688

Explicitly specify the signal() function from the global namespace. Fixes #5722

Don't read the clock unless the heap is non-empty.

Change the SSL buffers sizes so that they're large enough to hold a complete TLS record. Fixes #5854

Make sure the synchronous null_buffers operations obey the user's non_blocking setting. Fixes #5756

Set size of select fd_set at runtime when using Windows.

Disable warning due to const qualifier being applied to function type.

Fix crash due to gcc_x86_fenced_block that shows up when using the Intel C++ compiler. Fixes #5763

Specialise operations for buffer sequences that are arrays of exactly two buffers.

Initialise all OpenSSL algorithms.

Fix error mapping when session is gracefully shut down.

Various performance improvements:

• Split the task_io_service's run and poll code.

• Use thread-local operation queues in single-threaded use cases (i.e. concurrency_hint is 1) to eliminate a lock/unlock pair.

• Only fence block exit when a handler is being run directly out of the io_service.

• Prefer x86 mfence-based fenced block when available.

• Use a plain ol' long for the atomic_count when all thread support is disabled.

• Allow some epoll_reactor speculative operations to be performed without holding the lock.

• Improve locality of reference by performing an epoll_reactor's I/O operation immediately before the corresponding handler is called. This also improves scalability across CPUs when multiple threads are running the io_service.

• Pass same error_code variable through to each operation's complete() function.

• Optimise creation of and access to the io_service implementation.

Remove unused state in HTTP server examples.

Add latency test programs.

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