Unix and Linux Discussions Tagged with pipe |
|
Thread / Thread Starter |
Last Post |
Replies |
Views |
Forum |
|
|
|
9 |
103,020 |
Shell Programming and Scripting |
|
|
|
2 |
8,478 |
Shell Programming and Scripting |
|
|
|
1 |
8,216 |
Shell Programming and Scripting |
|
|
|
6 |
2,497 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
1,810 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
1,417 |
UNIX for Beginners Questions & Answers |
|
|
|
13 |
2,994 |
Shell Programming and Scripting |
|
|
|
2 |
2,850 |
Programming |
|
|
|
8 |
6,154 |
Shell Programming and Scripting |
|
|
|
8 |
3,516 |
Shell Programming and Scripting |
|
|
|
3 |
1,418 |
UNIX for Beginners Questions & Answers |
|
|
|
6 |
1,636 |
Shell Programming and Scripting |
|
|
|
2 |
11,851 |
UNIX for Beginners Questions & Answers |
|
|
|
3 |
3,460 |
Shell Programming and Scripting |
|
|
|
3 |
1,788 |
UNIX for Beginners Questions & Answers |
|
|
|
2 |
4,140 |
Solaris |
|
|
|
0 |
2,689 |
Homework & Coursework Questions |
|
|
|
2 |
1,707 |
Shell Programming and Scripting |
|
|
|
5 |
2,395 |
Linux |
|
|
|
2 |
1,288 |
Shell Programming and Scripting |
|
|
|
1 |
2,305 |
Shell Programming and Scripting |
|
|
|
3 |
1,916 |
Shell Programming and Scripting |
|
|
|
3 |
5,144 |
Shell Programming and Scripting |
|
|
|
10 |
3,908 |
UNIX for Dummies Questions & Answers |
|
|
|
2 |
2,310 |
Shell Programming and Scripting |
|
|
|
3 |
1,726 |
UNIX for Dummies Questions & Answers |
|
|
|
2 |
4,275 |
Shell Programming and Scripting |
|
|
|
1 |
2,379 |
UNIX for Dummies Questions & Answers |
|
|
|
16 |
6,661 |
Programming |
|
|
|
8 |
20,340 |
Shell Programming and Scripting |
|
|
|
9 |
7,446 |
Shell Programming and Scripting |
|
|
|
1 |
4,618 |
UNIX for Dummies Questions & Answers |
|
|
|
6 |
3,064 |
UNIX for Dummies Questions & Answers |
|
|
|
1 |
3,820 |
Programming |
|
|
|
6 |
4,366 |
Ubuntu |
|
|
|
1 |
2,376 |
Ubuntu |
|
|
|
1 |
18,195 |
UNIX for Advanced & Expert Users |
|
|
|
8 |
18,322 |
Shell Programming and Scripting |
|
|
|
7 |
6,275 |
Shell Programming and Scripting |
|
|
|
3 |
9,552 |
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)