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diff --git a/man3p/fdatasync.3p b/man3p/fdatasync.3p new file mode 100644 index 000000000..867f997d7 --- /dev/null +++ b/man3p/fdatasync.3p @@ -0,0 +1,74 @@ +.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved +.TH "FDATASYNC" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual" +.\" fdatasync +.SH NAME +fdatasync \- synchronize the data of a file (\fBREALTIME\fP) +.SH SYNOPSIS +.LP +\fB#include <unistd.h> +.br +.sp +int fdatasync(int\fP \fIfildes\fP\fB); \fP +\fB +.br +\fP +.SH DESCRIPTION +.LP +The \fIfdatasync\fP() function shall force all currently queued I/O +operations associated with the file indicated by file +descriptor \fIfildes\fP to the synchronized I/O completion state. +.LP +The functionality shall be equivalent to \fIfsync\fP() with the symbol +_POSIX_SYNCHRONIZED_IO defined, with the exception that all I/O operations +shall be completed as defined for synchronized I/O data +integrity completion. +.SH RETURN VALUE +.LP +If successful, the \fIfdatasync\fP() function shall return the value +0; otherwise, the function shall return the value -1 and +set \fIerrno\fP to indicate the error. If the \fIfdatasync\fP() function +fails, outstanding I/O operations are not guaranteed to +have been completed. +.SH ERRORS +.LP +The \fIfdatasync\fP() function shall fail if: +.TP 7 +.B EBADF +The \fIfildes\fP argument is not a valid file descriptor open for +writing. +.TP 7 +.B EINVAL +This implementation does not support synchronized I/O for this file. +.sp +.LP +In the event that any of the queued I/O operations fail, \fIfdatasync\fP() +shall return the error conditions defined for \fIread\fP() and \fIwrite\fP(). +.LP +\fIThe following sections are informative.\fP +.SH EXAMPLES +.LP +None. +.SH APPLICATION USAGE +.LP +None. +.SH RATIONALE +.LP +None. +.SH FUTURE DIRECTIONS +.LP +None. +.SH SEE ALSO +.LP +\fIaio_fsync\fP() , \fIfcntl\fP() , \fIfsync\fP() , \fIopen\fP() , +\fIread\fP() , \fIwrite\fP() , the Base Definitions volume of IEEE\ Std\ 1003.1-2001, +\fI<unistd.h>\fP +.SH COPYRIGHT +Portions of this text are reprinted and reproduced in electronic form +from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology +-- Portable Operating System Interface (POSIX), The Open Group Base +Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of +Electrical and Electronics Engineers, Inc and The Open Group. In the +event of any discrepancy between this version and the original IEEE and +The Open Group Standard, the original IEEE and The Open Group Standard +is the referee document. The original Standard can be obtained online at +http://www.opengroup.org/unix/online.html . |