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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-26 16:38:00 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-26 16:38:00 -0400
commit97d5c458cfa039d857301e1ca7d5af3beb37131d (patch)
treeb460cd850d0537eb71806ba30358840377b27688 /static/v10/man2/pipe.2
parentb89dc2331a50c63f8b33272a5c4c61ab98abdaa3 (diff)
build: Better Build System
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-.pa 1
-.he 'PIPE (II)'1/15/73'PIPE (II)'
-.ti 0
-NAME pipe -- create a pipe
-.sp
-.ti 0
-SYNOPSIS sys pipe / pipe = 42.; not in assembler
-.br
-(file descriptor in r0)
-.sp
-.ti 0
-DESCRIPTION The
-pipe____
-system call
-creates an I/O mechanism called a pipe.
-The file descriptor returned can
-be used in both read and write operations.
-When the pipe is written,
-the data is buffered up to 504 bytes
-at which time the writing process is suspended.
-A read on the pipe will pick up the buffered data.
-.sp
-It is assumed that after the
-pipe____ has been set up,
-two (or more)
-cooperating processes
-(created by subsequent fork____ calls)
-will pass data through the
-pipe with read____ and write_____ calls.
-
-The shell has a syntax
-to set up a linear array of processes
-connected by pipes.
-.sp
-Read calls on an empty
-pipe (no buffered data) with only one end
-(no synonymous file
-descriptors resulting from fork____ or dup___)
-return an end-of-file.
-Write calls under similar conditions are ignored.
-
-.ti 0
-SEE ALSO sh(I), read(II), write(II), fork(II)
-.sp
-.ti 0
-DIAGNOSTICS The error
-bit (c-bit) is set if
-10 files are already open.
-.sp
-.ti 0
-BUGS --