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-.\" $OpenBSD: pwrite.3,v 1.8 2000/04/15 02:15:26 aaron Exp $
-.\" David Leonard <d@openbsd.org>, 1998. Public domain.
-.Dd September 7, 1998
-.Dt PWRITE 3
-.Os
-.Sh NAME
-.Nm pwrite
-.Nd atomic seek and write
-.Sh SYNOPSIS
-.Fd #include <pthread.h>
-.Ft ssize_t
-.Fn pwrite "int filedes" "void *buf" "size_t nbytes" "off_t offset"
-.Sh DESCRIPTION
-The
-.Fn pwrite
-function writes
-.Fa nbyte
-bytes from offset
-.Fa offset
-in the file opened on file descriptor
-.Fa filedes .
-.Pp
-This function is provided for use in a threaded, parallel I/O
-environment, where race conditions may exist between two threads
-non-atomically seeking and writing to the same file descriptor.
-.Sh RETURN VALUES
-The
-.Fn pwrite
-function returns values identical to
-.Xr write 2 .
-.Sh SEE ALSO
-.Xr write 2 ,
-.Xr pread 3 ,
-.Xr pthreads 3
-.Sh STANDARDS
-.Fn pwrite
-conforms to
-.St -susv2 .