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Maxim Dounin fac4c7bdf5 Events: available bytes calculation via ioctl(FIONREAD). ... This makes it possible to avoid looping for a long time while working with a fast enough peer when data are added to the socket buffer faster than we are able to read and process them (ticket #1431). This is basically what we already do on FreeBSD with kqueue, where information about the number of bytes in the socket buffer is returned by the kevent() call. With other event methods rev->available is now set to -1 when the socket is ready for reading. Later in ngx_recv() and ngx_recv_chain(), if full buffer is received, real number of bytes in the socket buffer is retrieved using ioctl(FIONREAD). Reading more than this number of bytes ensures that even with edge-triggered event methods the event will be triggered again, so it is safe to stop processing of the socket and switch to other connections. Using ioctl(FIONREAD) only after reading a full buffer is an optimization. With this approach we only call ioctl(FIONREAD) when there are at least two recv()/readv() calls.		6 years ago
..
cc	Win32: defined pdb path.	7 years ago
lib	Configure: fixed compiler warnings with "-Wall -Wextra".	8 years ago
os	Win32: enabled both select and poll on Windows by default.	7 years ago
types	Configure: stop polluting NGX_ namespace.	10 years ago
configure	Configure: fix compilation on MSYS2 / MinGW64.	9 years ago
define	Copyright updated.	14 years ago
endianness	Configure: fix build with -Werror=old-style-definition.	10 years ago
feature	Configure: fix build with -Werror=old-style-definition.	10 years ago
have	Copyright updated.	14 years ago
have_headers	Copyright updated.	14 years ago
headers	Copyright updated.	14 years ago
include	Configure: stop polluting NGX_ namespace.	10 years ago
init	Dynamic modules: do not overwrite old modules on install.	10 years ago
install	Configure: style.	10 years ago
make	Configure: added explicit ngx_binext to the linker output argument.	7 years ago
module	Configure: honor dependencies of dynamic modules.	9 years ago
modules	Unconditional compilation of the postpone filter.	7 years ago
nohave	Copyright updated.	14 years ago
options	Unconditional compilation of the postpone filter.	7 years ago
sources	Win32: added WSAPoll() support.	7 years ago
stubs	Copyright updated.	14 years ago
summary	Internal md5 and sha1 implementations are now always used.	10 years ago
threads	Configure: fixed static compilation with OpenSSL 1.1.1.	8 years ago
unix	Events: available bytes calculation via ioctl(FIONREAD).	6 years ago