nginx.git/src/os, branch release-1.0.7

Merging r4130, r4131, r4135:

2011-09-30T14:12:53+00:00

Linux AIO related fixes:

*) Fixing Linux AIO syscalls return value handling:
syscall(2) uses usual libc convention, it returns -1 on error and
sets errno. Obsolete _syscall(2) returns negative value of error.

*) Fixing Linux AIO initiatialization: AIO operations are disabled
if kernel does not support them.  Previously worker just exited.

*) The "worker_aio_requests" directive.

The default value is 32 AIO simultaneous requests per worker. Previously
they were hardcoded to 1024, and it was too large, since Linux allocated
them early on io_setup(), but not on request itself. So with default value
of /proc/sys/fs/aio-max-nr equal to 65536 only 64 worker processes could
be run simultaneously. 32 AIO requests are enough for modern disks even if
server runs only 1 worker.

Merging r4098:

2011-09-30T14:09:44+00:00

In Mac OS X Lion, Apple deprecated the use of the system OpenSSL library
in favour of their CommonCrypto library.  This change adds a work-around
that allows nginx to still be built on Lion with OpenSSL.

Merging r4077, r4101, r4102:

2011-09-30T13:57:44+00:00

open_file_cache related fixes:

*) Bugfix: open_file_cache lost is_directio flag.

On file retest open_file_cache lost is_directio if file wasn't changed.
This caused unaligned operations under Linux to fail with EINVAL.
It wasn't noticeable with AIO though, as errors wasn't properly logged.

*) Bugfix: open_file_cache did not update file info on retest.

If file inode was not changed, cached file information was not updated
on retest.  As a result stale information might be cached forever if file
attributes was changed and/or file was extended.

Merge of r4018:

2011-08-29T13:11:47+00:00

Fix buffer overrun under Windows.

Merge of r3966, r3967, r3968, r3969, r3970, r3971:

2011-08-29T09:51:56+00:00

Cache loader improvements:

The cache loader performs two tasks: inserting cache objects in inactivity
list and evaluating total cache size. Reading just directory is enough for
this purpose. Elimination of reading cache files saves at least one disk I/O
operation per file.

"$apr1", "{PLAIN}", and "{SSHA}" password methods in auth basic module

2011-05-16T14:54:50+00:00

patch by Maxim Dounin

use POSIX semaphores in shmtx instead of sched_yield()

2011-05-10T11:39:13+00:00

number of spinlock spins are increased twice

revert r3864, it may cause kernel panic on some kernels while working with IPv6

2011-04-23T17:27:55+00:00

Use more precise stat.st_blocks to account cache size on Unix

2011-04-22T10:06:43+00:00

instead of file length rounded to a file system block size.
There is no similar way on Windows, so rounding to a cache->bsize is kept.

use backlog -1 on Linux

2011-02-17T14:14:50+00:00

thanks to Andrei Nigmatulin