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ruby--ruby/spec/ruby/core
normal 6a65f2b1e4 io + socket: make pipes and sockets nonblocking by default
All normal Ruby IO methods (IO#read, IO#gets, IO#write, ...) are
all capable of appearing to be "blocking" when presented with a
file description with the O_NONBLOCK flag set; so there is
little risk of incompatibility within Ruby-using programs.

The biggest compatibility risk is when spawning external
programs.  As a result, stdin, stdout, and stderr are now always
made blocking before exec-family calls.

This change will make an event-oriented MJIT usable if it is
waiting on pipes on POSIX_like platforms.

It is ALSO necessary to take advantage of (proposed lightweight
concurrency (aka "auto-Fiber") or any similar proposal for
network concurrency: https://bugs.ruby-lang.org/issues/13618

Named-pipe (FIFO) are NOT yet non-blocking by default since
they are rarely-used and may introduce compatibility problems
and extra syscall overhead for a common path.

Please revert this commit if there are problems and if I am afk
since I am afk a lot, lately.

[ruby-core:89950] [Bug #14968]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65922 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-11-22 08:46:51 +00:00
..
argf
array
basicobject
binding
builtin_constants
class
comparable
complex
dir
encoding
enumerable
enumerator
env
exception
false
fiber
file
filetest
float
gc
hash
integer
io io + socket: make pipes and sockets nonblocking by default 2018-11-22 08:46:51 +00:00
kernel
main
marshal
matchdata
math
method
module Enable refinements at Object#respond_to? 2018-11-22 08:29:02 +00:00
mutex
nil
numeric
objectspace
proc
process
random
range
rational
regexp
signal
string
struct
symbol
systemexit
thread
threadgroup
time Refine Timezone class in test-spec 2018-11-04 02:02:28 +00:00
tracepoint
true
unboundmethod
warning