Unix and Linux Discussions Tagged with pipe |
|
Thread / Thread Starter |
Last Post |
Replies |
Views |
Forum |
|
|
|
9 |
116,005 |
Shell Programming and Scripting |
|
|
|
2 |
10,226 |
Shell Programming and Scripting |
|
|
|
1 |
9,482 |
Shell Programming and Scripting |
|
|
|
6 |
3,194 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
2,630 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
2,029 |
UNIX for Beginners Questions & Answers |
|
|
|
13 |
3,899 |
Shell Programming and Scripting |
|
|
|
2 |
3,569 |
Programming |
|
|
|
8 |
8,000 |
Shell Programming and Scripting |
|
|
|
8 |
4,424 |
Shell Programming and Scripting |
|
|
|
3 |
1,871 |
UNIX for Beginners Questions & Answers |
|
|
|
6 |
2,203 |
Shell Programming and Scripting |
|
|
|
2 |
12,530 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
4,330 |
Shell Programming and Scripting |
|
|
|
3 |
2,357 |
UNIX for Beginners Questions & Answers |
|
|
|
2 |
4,610 |
Solaris |
|
|
|
0 |
3,108 |
Homework & Coursework Questions |
|
|
|
2 |
2,004 |
Shell Programming and Scripting |
|
|
|
5 |
3,103 |
Linux |
|
|
|
2 |
1,643 |
Shell Programming and Scripting |
|
|
|
1 |
2,742 |
Shell Programming and Scripting |
|
|
|
3 |
2,335 |
Shell Programming and Scripting |
|
|
|
3 |
5,598 |
Shell Programming and Scripting |
|
|
|
10 |
4,728 |
UNIX for Dummies Questions & Answers |
|
|
|
2 |
2,794 |
Shell Programming and Scripting |
|
|
|
3 |
2,131 |
UNIX for Dummies Questions & Answers |
|
|
|
2 |
4,935 |
Shell Programming and Scripting |
|
|
|
1 |
2,858 |
UNIX for Dummies Questions & Answers |
|
|
|
16 |
7,835 |
Programming |
|
|
|
8 |
21,038 |
Shell Programming and Scripting |
|
|
|
9 |
8,352 |
Shell Programming and Scripting |
|
|
|
1 |
4,986 |
UNIX for Dummies Questions & Answers |
|
|
|
6 |
3,635 |
UNIX for Dummies Questions & Answers |
|
|
|
1 |
4,494 |
Programming |
|
|
|
6 |
4,912 |
Ubuntu |
|
|
|
1 |
2,852 |
Ubuntu |
|
|
|
1 |
19,571 |
UNIX for Advanced & Expert Users |
|
|
|
8 |
19,088 |
Shell Programming and Scripting |
|
|
|
7 |
7,070 |
Shell Programming and Scripting |
|
|
|
3 |
10,191 |
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)