Unix and Linux Discussions Tagged with pipe |
|
Thread / Thread Starter |
Last Post |
Replies |
Views |
Forum |
|
|
|
9 |
83,036 |
Shell Programming and Scripting |
|
|
|
2 |
7,873 |
Shell Programming and Scripting |
|
|
|
1 |
7,508 |
Shell Programming and Scripting |
|
|
|
6 |
2,433 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
1,715 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
1,354 |
UNIX for Beginners Questions & Answers |
|
|
|
13 |
2,827 |
Shell Programming and Scripting |
|
|
|
2 |
2,743 |
Programming |
|
|
|
8 |
5,203 |
Shell Programming and Scripting |
|
|
|
8 |
3,442 |
Shell Programming and Scripting |
|
|
|
3 |
1,357 |
UNIX for Beginners Questions & Answers |
|
|
|
6 |
1,558 |
Shell Programming and Scripting |
|
|
|
2 |
11,764 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
3,376 |
Shell Programming and Scripting |
|
|
|
3 |
1,733 |
UNIX for Beginners Questions & Answers |
|
|
|
2 |
4,106 |
Solaris |
|
|
|
0 |
2,617 |
Homework & Coursework Questions |
|
|
|
2 |
1,687 |
Shell Programming and Scripting |
|
|
|
5 |
2,338 |
Linux |
|
|
|
2 |
1,248 |
Shell Programming and Scripting |
|
|
|
1 |
2,256 |
Shell Programming and Scripting |
|
|
|
3 |
1,868 |
Shell Programming and Scripting |
|
|
|
3 |
5,034 |
Shell Programming and Scripting |
|
|
|
10 |
3,845 |
UNIX for Dummies Questions & Answers |
|
|
|
2 |
2,275 |
Shell Programming and Scripting |
|
|
|
3 |
1,691 |
UNIX for Dummies Questions & Answers |
|
|
|
2 |
4,234 |
Shell Programming and Scripting |
|
|
|
1 |
2,343 |
UNIX for Dummies Questions & Answers |
|
|
|
16 |
6,539 |
Programming |
|
|
|
8 |
20,238 |
Shell Programming and Scripting |
|
|
|
9 |
7,345 |
Shell Programming and Scripting |
|
|
|
1 |
4,586 |
UNIX for Dummies Questions & Answers |
|
|
|
6 |
3,007 |
UNIX for Dummies Questions & Answers |
|
|
|
1 |
3,730 |
Programming |
|
|
|
6 |
4,316 |
Ubuntu |
|
|
|
1 |
2,341 |
Ubuntu |
|
|
|
1 |
18,076 |
UNIX for Advanced & Expert Users |
|
|
|
8 |
18,270 |
Shell Programming and Scripting |
|
|
|
7 |
6,175 |
Shell Programming and Scripting |
|
|
|
3 |
9,492 |
Shell Programming and Scripting |
PIPE(2) System Calls Manual PIPE(2)
NAME
pipe - create an interprocess channel
SYNOPSIS
#include <u.h>
#include <libc.h>
int pipe(int fd[2])
DESCRIPTION
Pipe creates a buffered channel for interprocess I/O communication. Two file descriptors are returned in fd. Data written to fd[1] is
available for reading from fd[0] and data written to fd[0] is available for reading from fd[1].
After the pipe has been established, cooperating processes created by subsequent fork(2) calls may pass data through the pipe with read and
write calls. The bytes placed on a pipe by one write are contiguous even if many processes are writing. Write boundaries are preserved:
each read terminates when the read buffer is full or after reading the last byte of a write, whichever comes first.
The number of bytes available to a read(2) is reported in the Length field returned by fstat or dirfstat on a pipe (see stat(2)).
When all the data has been read from a pipe and the writer has closed the pipe or exited,
read(2) will return 0 bytes. Writes to a pipe with no reader will generate a note sys: write on closed pipe.
SOURCE
/sys/src/libc/9syscall
SEE ALSO
intro(2), read(2), pipe(3)
DIAGNOSTICS
Sets errstr.
BUGS
If a read or a write of a pipe is interrupted, some unknown number of bytes may have been transferred.
When a read from a pipe returns 0 bytes, it usually means end of file but is indistinguishable from reading the result of an explicit write
of zero bytes.
PIPE(2)