Unix and Linux Discussions Tagged with pipe |
|
Thread / Thread Starter |
Last Post |
Replies |
Views |
Forum |
|
|
|
9 |
105,959 |
Shell Programming and Scripting |
|
|
|
2 |
8,944 |
Shell Programming and Scripting |
|
|
|
1 |
8,593 |
Shell Programming and Scripting |
|
|
|
6 |
2,653 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
2,051 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
1,567 |
UNIX for Beginners Questions & Answers |
|
|
|
13 |
3,241 |
Shell Programming and Scripting |
|
|
|
2 |
3,053 |
Programming |
|
|
|
8 |
6,695 |
Shell Programming and Scripting |
|
|
|
8 |
3,719 |
Shell Programming and Scripting |
|
|
|
3 |
1,539 |
UNIX for Beginners Questions & Answers |
|
|
|
6 |
1,747 |
Shell Programming and Scripting |
|
|
|
2 |
12,015 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
3,672 |
Shell Programming and Scripting |
|
|
|
3 |
1,979 |
UNIX for Beginners Questions & Answers |
|
|
|
2 |
4,252 |
Solaris |
|
|
|
0 |
2,789 |
Homework & Coursework Questions |
|
|
|
2 |
1,766 |
Shell Programming and Scripting |
|
|
|
5 |
2,549 |
Linux |
|
|
|
2 |
1,335 |
Shell Programming and Scripting |
|
|
|
1 |
2,409 |
Shell Programming and Scripting |
|
|
|
3 |
2,038 |
Shell Programming and Scripting |
|
|
|
3 |
5,225 |
Shell Programming and Scripting |
|
|
|
10 |
4,120 |
UNIX for Dummies Questions & Answers |
|
|
|
2 |
2,419 |
Shell Programming and Scripting |
|
|
|
3 |
1,803 |
UNIX for Dummies Questions & Answers |
|
|
|
2 |
4,453 |
Shell Programming and Scripting |
|
|
|
1 |
2,462 |
UNIX for Dummies Questions & Answers |
|
|
|
16 |
6,937 |
Programming |
|
|
|
8 |
20,503 |
Shell Programming and Scripting |
|
|
|
9 |
7,640 |
Shell Programming and Scripting |
|
|
|
1 |
4,704 |
UNIX for Dummies Questions & Answers |
|
|
|
6 |
3,201 |
UNIX for Dummies Questions & Answers |
|
|
|
1 |
4,010 |
Programming |
|
|
|
6 |
4,533 |
Ubuntu |
|
|
|
1 |
2,491 |
Ubuntu |
|
|
|
1 |
18,528 |
UNIX for Advanced & Expert Users |
|
|
|
8 |
18,460 |
Shell Programming and Scripting |
|
|
|
7 |
6,426 |
Shell Programming and Scripting |
|
|
|
3 |
9,705 |
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)