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Name	Size	Permission	Date
%3c%3c-i.yaml	560 B	-rw-r--r--	2023-07-26 13:47
binmode-i.yaml	383 B	-rw-r--r--	2023-07-26 13:47
block_scanf-i.yaml	201 B	-rw-r--r--	2023-07-26 13:47
bytes-i.yaml	568 B	-rw-r--r--	2023-07-26 13:47
cdesc-IO.yaml	7.74 KB	-rw-r--r--	2023-07-26 13:47
chars-i.yaml	617 B	-rw-r--r--	2023-07-26 13:47
close-i.yaml	612 B	-rw-r--r--	2023-07-26 13:47
close_read-i.yaml	720 B	-rw-r--r--	2023-07-26 13:47
close_write-i.yaml	767 B	-rw-r--r--	2023-07-26 13:47
closed%3f-i.yaml	689 B	-rw-r--r--	2023-07-26 13:47
each-i.yaml	815 B	-rw-r--r--	2023-07-26 13:47
each_byte-i.yaml	637 B	-rw-r--r--	2023-07-26 13:47
each_char-i.yaml	625 B	-rw-r--r--	2023-07-26 13:47
each_line-i.yaml	825 B	-rw-r--r--	2023-07-26 13:47
eof%3f-i.yaml	1.15 KB	-rw-r--r--	2023-07-26 13:47
eof-i.yaml	1.15 KB	-rw-r--r--	2023-07-26 13:47
fcntl-i.yaml	665 B	-rw-r--r--	2023-07-26 13:47
fileno-i.yaml	470 B	-rw-r--r--	2023-07-26 13:47
flush-i.yaml	598 B	-rw-r--r--	2023-07-26 13:47
for_fd-c.yaml	259 B	-rw-r--r--	2023-07-26 13:47
foreach-c.yaml	673 B	-rw-r--r--	2023-07-26 13:47
fsync-i.yaml	591 B	-rw-r--r--	2023-07-26 13:47
getbyte-i.yaml	458 B	-rw-r--r--	2023-07-26 13:47
getc-i.yaml	452 B	-rw-r--r--	2023-07-26 13:47
gets-i.yaml	895 B	-rw-r--r--	2023-07-26 13:47
inspect-i.yaml	269 B	-rw-r--r--	2023-07-26 13:47
ioctl-i.yaml	586 B	-rw-r--r--	2023-07-26 13:47
isatty-i.yaml	525 B	-rw-r--r--	2023-07-26 13:47
lineno%3d-i.yaml	748 B	-rw-r--r--	2023-07-26 13:47
lineno-i.yaml	816 B	-rw-r--r--	2023-07-26 13:47
lines-i.yaml	679 B	-rw-r--r--	2023-07-26 13:47
new-c.yaml	655 B	-rw-r--r--	2023-07-26 13:47
open-c.yaml	599 B	-rw-r--r--	2023-07-26 13:47
pid-i.yaml	712 B	-rw-r--r--	2023-07-26 13:47
pipe-c.yaml	1.27 KB	-rw-r--r--	2023-07-26 13:47
popen-c.yaml	2.03 KB	-rw-r--r--	2023-07-26 13:47
pos%3d-i.yaml	432 B	-rw-r--r--	2023-07-26 13:47
pos-i.yaml	475 B	-rw-r--r--	2023-07-26 13:47
print-i.yaml	902 B	-rw-r--r--	2023-07-26 13:47
printf-i.yaml	384 B	-rw-r--r--	2023-07-26 13:47
putc-i.yaml	600 B	-rw-r--r--	2023-07-26 13:47
puts-i.yaml	787 B	-rw-r--r--	2023-07-26 13:47
read-c.yaml	782 B	-rw-r--r--	2023-07-26 13:47
read-i.yaml	974 B	-rw-r--r--	2023-07-26 13:47
read_nonblock-i.yaml	999 B	-rw-r--r--	2023-07-26 13:47
readbyte-i.yaml	321 B	-rw-r--r--	2023-07-26 13:47
readbytes-i.yaml	473 B	-rw-r--r--	2023-07-26 13:47
readchar-i.yaml	321 B	-rw-r--r--	2023-07-26 13:47
readline-i.yaml	331 B	-rw-r--r--	2023-07-26 13:47
readlines-c.yaml	537 B	-rw-r--r--	2023-07-26 13:47
readlines-i.yaml	695 B	-rw-r--r--	2023-07-26 13:47
readpartial-i.yaml	3.72 KB	-rw-r--r--	2023-07-26 13:47
reopen-i.yaml	749 B	-rw-r--r--	2023-07-26 13:47
rewind-i.yaml	549 B	-rw-r--r--	2023-07-26 13:47
scanf-i.yaml	1.24 KB	-rw-r--r--	2023-07-26 13:47
seek-i.yaml	1.01 KB	-rw-r--r--	2023-07-26 13:47
select-c.yaml	323 B	-rw-r--r--	2023-07-26 13:47
soak_up_spaces-i.yaml	179 B	-rw-r--r--	2023-07-26 13:47
stat-i.yaml	542 B	-rw-r--r--	2023-07-26 13:47
sync%3d-i.yaml	630 B	-rw-r--r--	2023-07-26 13:47
sync-i.yaml	544 B	-rw-r--r--	2023-07-26 13:47
sysopen-c.yaml	421 B	-rw-r--r--	2023-07-26 13:47
sysread-i.yaml	649 B	-rw-r--r--	2023-07-26 13:47
sysseek-i.yaml	624 B	-rw-r--r--	2023-07-26 13:47
syswrite-i.yaml	614 B	-rw-r--r--	2023-07-26 13:47
tell-i.yaml	477 B	-rw-r--r--	2023-07-26 13:47
to_i-i.yaml	214 B	-rw-r--r--	2023-07-26 13:47
to_io-i.yaml	237 B	-rw-r--r--	2023-07-26 13:47
tty%3f-i.yaml	521 B	-rw-r--r--	2023-07-26 13:47
ungetc-i.yaml	828 B	-rw-r--r--	2023-07-26 13:47
write-i.yaml	734 B	-rw-r--r--	2023-07-26 13:47
write_nonblock-i.yaml	636 B	-rw-r--r--	2023-07-26 13:47

Rename

--- !ruby/object:RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
 body: Reads at most maxlen bytes from the I/O stream. It blocks only if ios has no data immediately available. It doesn't block if some data available. If the optional outbuf argument is present, it must reference a String, which will receive the data. It raises <tt>EOFError</tt> on end of file.
- !ruby/struct:SM::Flow::P 
 body: readpartial is designed for streams such as pipe, socket, tty, etc. It blocks only when no data immediately available. This means that it blocks only when following all conditions hold.
- !ruby/object:SM::Flow::LIST 
 contents: 
 - !ruby/struct:SM::Flow::LI 
 label: "*"
 body: the buffer in the IO object is empty.
 - !ruby/struct:SM::Flow::LI 
 label: "*"
 body: the content of the stream is empty.
 - !ruby/struct:SM::Flow::LI 
 label: "*"
 body: the stream is not reached to EOF.
 type: :BULLET
- !ruby/struct:SM::Flow::P 
 body: When readpartial blocks, it waits data or EOF on the stream. If some data is reached, readpartial returns with the data. If EOF is reached, readpartial raises EOFError.
- !ruby/struct:SM::Flow::P 
 body: When readpartial doesn't blocks, it returns or raises immediately. If the buffer is not empty, it returns the data in the buffer. Otherwise if the stream has some content, it returns the data in the stream. Otherwise if the stream is reached to EOF, it raises EOFError.
- !ruby/struct:SM::Flow::VERB 
 body: " r, w = IO.pipe # buffer pipe content\n w &lt;&lt; &quot;abc&quot; # &quot;&quot; &quot;abc&quot;.\n r.readpartial(4096) #=&gt; &quot;abc&quot; &quot;&quot; &quot;&quot;\n r.readpartial(4096) # blocks because buffer and pipe is empty.\n\n r, w = IO.pipe # buffer pipe content\n w &lt;&lt; &quot;abc&quot; # &quot;&quot; &quot;abc&quot;\n w.close # &quot;&quot; &quot;abc&quot; EOF\n r.readpartial(4096) #=&gt; &quot;abc&quot; &quot;&quot; EOF\n r.readpartial(4096) # raises EOFError\n\n r, w = IO.pipe # buffer pipe content\n w &lt;&lt; &quot;abc\\ndef\\n&quot; # &quot;&quot; &quot;abc\\ndef\\n&quot;\n r.gets #=&gt; &quot;abc\\n&quot; &quot;def\\n&quot; &quot;&quot;\n w &lt;&lt; &quot;ghi\\n&quot; # &quot;def\\n&quot; &quot;ghi\\n&quot;\n r.readpartial(4096) #=&gt; &quot;def\\n&quot; &quot;&quot; &quot;ghi\\n&quot;\n r.readpartial(4096) #=&gt; &quot;ghi\\n&quot; &quot;&quot; &quot;&quot;\n"
- !ruby/struct:SM::Flow::P 
 body: "Note that readpartial behaves similar to sysread. The differences are:"
- !ruby/object:SM::Flow::LIST 
 contents: 
 - !ruby/struct:SM::Flow::LI 
 label: "*"
 body: If the buffer is not empty, read from the buffer instead of &quot;sysread for buffered IO (IOError)&quot;.
 - !ruby/struct:SM::Flow::LI 
 label: "*"
 body: It doesn't cause Errno::EAGAIN and Errno::EINTR. When readpartial meets EAGAIN and EINTR by read system call, readpartial retry the system call.
 type: :BULLET
- !ruby/struct:SM::Flow::P 
 body: The later means that readpartial is nonblocking-flag insensitive. It blocks on the situation IO#sysread causes Errno::EAGAIN as if the fd is blocking mode.
full_name: IO#readpartial
is_singleton: false
name: readpartial
params: |
 ios.readpartial(maxlen) => string
 ios.readpartial(maxlen, outbuf) => outbuf

visibility: public