mirror of https://github.com/mkerrisk/man-pages
Formatting fixes + fixed return values.
This commit is contained in:
Michael Kerrisk
parent
2af7f393df
commit
d12c14243e
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@ -2,41 +2,42 @@
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.\" This file is distributed according to the GNU General Public License.
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.\" See the file COPYING in the top level source directory for details.
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.\"
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.de Sh \" Subsection
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.br
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.if t .Sp
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.ne 5
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.PP
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\fB\\$1\fR
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.PP
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..
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.de Sp \" Vertical space (when we can't use .PP)
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.if t .sp .5v
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.if n .sp
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..
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.de Ip \" List item
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.br
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.ie \\n(.$>=3 .ne \\$3
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.el .ne 3
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.IP "\\$1" \\$2
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..
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.\" .de Sh \" Subsection
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.\" .br
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.\" .if t .Sp
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.\" .ne 5
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.\" .PP
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.\" \fB\\$1\fR
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.\" .PP
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.\" ..
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.\" .de Sp \" Vertical space (when we can't use .PP)
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.\" .if t .sp .5v
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.\" .if n .sp
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.\" ..
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.\" .de Ip \" List item
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.\" .br
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.\" .ie \\n(.$>=3 .ne \\$3
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.\" .el .ne 3
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.\" .IP "\\$1" \\$2
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.\" ..
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.TH "IO_CANCEL" 2 "2003-02-21" "Linux 2.4" "Linux Programmer's Manual"
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.SH NAME
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io_cancel \- Cancel an outstanding asynchronous I/O operation
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io_cancel \- cancel an outstanding asynchronous I/O operation
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.SH "SYNOPSIS"
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.ad l
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.hy 0
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#include <libaio.>
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.nf
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.\" .ad l
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.\" .hy 0
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.\"
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.B #include <libaio.h>
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.\"#include <linux/aio.h>
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.sp
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.HP 16
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int\ \fBio_cancel\fR\ (aio_context_t\ \fIctx_id\fR, struct\ iocb\ \fI*iocb\fR, struct\ io_event\ \fI*result\fR);
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.ad
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.hy
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.\" .HP 16
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.BI "int io_cancel(aio_context_t " ctx_id ", struct iocb *" iocb ,
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.BI " struct io_event *" result );
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.\" .ad
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.\" .hy
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.fi
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.SH "DESCRIPTION"
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.PP
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\fBio_cancel\fR() attempts to cancel an asynchronous I/O operation
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previously submitted with the \fBio_submit\fR system call.
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@ -44,52 +45,38 @@ previously submitted with the \fBio_submit\fR system call.
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If the AIO context is found, the event will be cancelled and then copied
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into the memory pointed to by \fIresult\fR without being placed
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into the completion queue.
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.SH "RETURN VALUE"
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.PP
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\fBio_cancel\fR() returns 0 on success; otherwise, it returns one of the
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errors listed in the "Errors" section.
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\fBio_cancel\fR() returns 0 on success;
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on failure, it returns one of the errors listed under ERRORS.
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.SH "ERRORS"
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.TP
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EINVAL
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.B EINVAL
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The AIO context specified by \fIctx_id\fR is invalid.
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.TP
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EFAULT
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.B EFAULT
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One of the data structures points to invalid data.
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.TP
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EAGAIN
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.B EAGAIN
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The \fIiocb\fR specified was not cancelled.
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.TP
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ENOSYS
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.B ENOSYS
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\fBio_cancel\fR() is not implemented on this architecture.
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.SH "VERSIONS"
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.PP
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The asynchronous I/O system calls first appeared in Linux 2.5, August 2002.
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.SH "CONFORMING TO"
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.PP
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\fBio_cancel\fR() is Linux specific and should not be used
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in programs that are intended to be portable.
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.SH "SEE ALSO"
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.PP
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\fBio_setup\fR(2), \fBio_destroy\fR(2), \fBio_getevents\fR(2),
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\fBio_submit\fR(2).
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.SH "NOTES"
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.PP
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The asynchronous I/O system calls were written by Benjamin LaHaise.
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.SH AUTHOR
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Kent Yoder.
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.\" .SH "NOTES"
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.\"
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.\" .PP
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.\" The asynchronous I/O system calls were written by Benjamin LaHaise.
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.\"
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.\" .SH AUTHOR
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.\" Kent Yoder.
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|
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@ -2,87 +2,75 @@
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.\" This file is distributed according to the GNU General Public License.
|
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.\" See the file COPYING in the top level source directory for details.
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.\"
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.de Sh \" Subsection
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.br
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.if t .Sp
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.ne 5
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.PP
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\fB\\$1\fR
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.PP
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..
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.de Sp \" Vertical space (when we can't use .PP)
|
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.if t .sp .5v
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.if n .sp
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..
|
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.de Ip \" List item
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.br
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.ie \\n(.$>=3 .ne \\$3
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.el .ne 3
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.IP "\\$1" \\$2
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..
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.\" .de Sh \" Subsection
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.\" .br
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.\" .if t .Sp
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.\" .ne 5
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.\" .PP
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.\" \fB\\$1\fR
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.\" .PP
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.\" ..
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.\" .de Sp \" Vertical space (when we can't use .PP)
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.\" .if t .sp .5v
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.\" .if n .sp
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.\" ..
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.\" .de Ip \" List item
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.\" .br
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.\" .ie \\n(.$>=3 .ne \\$3
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.\" .el .ne 3
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.\" .IP "\\$1" \\$2
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.\" ..
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.TH "IO_DESTROY" 2 "2003-02-21" "Linux 2.4" "Linux Programmer's Manual"
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.SH NAME
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io_destroy \- Destroy an asynchronous I/O context
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io_destroy \- destroy an asynchronous I/O context
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.SH "SYNOPSIS"
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.ad l
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.hy 0
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#include <libaio.h>
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.nf
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.\" .ad l
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.\" .hy 0
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.B #include <libaio.h>
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.\" #include <linux/aio.h>
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.sp
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.HP 17
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int\ \fBio_destroy\fR\ (aio_context_t\ \fIctx\fR);
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.ad
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.hy
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.\" .HP 17
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.BI "int io_destroy(aio_context_t " ctx );
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.\" .ad
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.\" .hy
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.fi
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.SH "DESCRIPTION"
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.PP
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\fBio_destroy\fR() removes the asynchronous I/O context from the list of
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I/O contexts and then destroys it.
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\fBio_destroy\fR() can also cancel any outstanding asynchronous I/O
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actions on \fIctx\fR and block on completion.
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.SH "RETURN VALUE"
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.PP
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\fBio_destroy\fR() returns 0 on success.
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\fBio_destroy\fR() returns 0 on success;
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on failure, it returns one of the errors listed under ERRORS.
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.SH "ERRORS"
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.SH "ERRORS"
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.TP
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EINVAL
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.B EINVAL
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The AIO context specified by \fIctx\fR is invalid.
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.TP
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EFAULT
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.B EFAULT
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The context pointed to is invalid.
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.TP
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ENOSYS
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.B ENOSYS
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\fBio_destroy\fR() is not implemented on this architecture.
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.SH "CONFORMING TO"
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.PP
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\fBio_destroy\fR() is Linux specific and should not be used in programs
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that are intended to be portable.
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.SH "VERSIONS"
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|
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.PP
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The asynchronous I/O system calls first appeared in Linux 2.5, August 2002.
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.SH "SEE ALSO"
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.PP
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\fBio_setup\fR(2), \fBio_submit\fR(2), \fBio_getevents\fR(2),
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\fBio_cancel\fR(2).
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.SH "NOTES"
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.PP
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The asynchronous I/O system calls were written by Benjamin LaHaise.
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.SH AUTHOR
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Kent Yoder.
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.\" .SH "NOTES"
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.\"
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.\" .PP
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.\" The asynchronous I/O system calls were written by Benjamin LaHaise.
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.\"
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.\" .SH AUTHOR
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.\" Kent Yoder.
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@ -2,97 +2,84 @@
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.\" This file is distributed according to the GNU General Public License.
|
||||
.\" See the file COPYING in the top level source directory for details.
|
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.\"
|
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.de Sh \" Subsection
|
||||
.br
|
||||
.if t .Sp
|
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.ne 5
|
||||
.PP
|
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\fB\\$1\fR
|
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.PP
|
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..
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.de Sp \" Vertical space (when we can't use .PP)
|
||||
.if t .sp .5v
|
||||
.if n .sp
|
||||
..
|
||||
.de Ip \" List item
|
||||
.br
|
||||
.ie \\n(.$>=3 .ne \\$3
|
||||
.el .ne 3
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||||
.IP "\\$1" \\$2
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..
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.\" .de Sh \" Subsection
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.\" .br
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.\" .if t .Sp
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.\" .ne 5
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.\" .PP
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.\" \fB\\$1\fR
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.\" .PP
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.\" ..
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.\" .de Sp \" Vertical space (when we can't use .PP)
|
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.\" .if t .sp .5v
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.\" .if n .sp
|
||||
.\" ..
|
||||
.\" .de Ip \" List item
|
||||
.\" .br
|
||||
.\" .ie \\n(.$>=3 .ne \\$3
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.\" .el .ne 3
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.\" .IP "\\$1" \\$2
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.\" ..
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.TH "IO_GETEVENTS" 2 "2003-02-21" "Linux 2.4" "Linux Programmer's Manual"
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.SH NAME
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io_getevents \- Read asynchronous I/O events from the completion queue
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io_getevents \- read asynchronous I/O events from the completion queue
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.SH "SYNOPSIS"
|
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.ad l
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.hy 0
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#include <linux/time.h>
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.sp
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|
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#include <libaio.h>
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.nf
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.\" .ad l
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.\" .hy 0
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.B #include <linux/time.h>
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.B #include <libaio.h>
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.\" #include <linux/aio.h>
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.sp
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.HP 19
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int\ \fBio_getevents\fR\ (aio_context_t\ \fIctx_id\fR, long\ \fImin_nr\fR, long\ \fInr\fR, struct\ io_event\ \fI*events\fR, struct\ timespec\ \fI*timeout\fR);
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.ad
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.hy
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.\" .HP 19
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.BI "int io_getevents(aio_context_t " ctx_id ", long " min_nr ", long " nr ,
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.BI " struct io_event *" events \
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", struct timespec *" timeout );
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.\" .ad
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.\" .hy
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.fi
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.SH "DESCRIPTION"
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.PP
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\fBio_getevents\fR() attempts to read at least \fImin_nr\fR events and
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up to \fInr\fR events from the completion queue of the AIO context
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specified by \fIctx_id\fR.
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\fItimeout\fR specifies the amount of time to wait for events,
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where a NULL timeout waits until at least \fImin_nr\fR events have been seen.
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where a NULL timeout waits until at least \fImin_nr\fR events
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have been seen.
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Note that \fItimeout\fR is relative and will be updated if not NULL
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and the operation blocks.
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.SH "RETURN VALUE"
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.PP
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On success,
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\fBio_getevents\fR() returns the number of events read: 0 if no events are
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available or < \fImin_nr\fR if the \fItimeout\fR has elapsed.
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available or < \fImin_nr\fR if the \fItimeout\fR has elapsed;
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on failure, it returns one of the errors listed under ERRORS.
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.SH "ERRORS"
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.TP
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EINVAL
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.B EINVAL
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\fIctx_id\fR is invalid. \fImin_nr\fR is out of range or \fInr\fR is
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out of range.
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.TP
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EFAULT
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.B EFAULT
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Either \fIevents\fR or \fItimeout\fR is an invalid pointer.
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.TP
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ENOSYS
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.B ENOSYS
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\fBio_getevents\fR() is not implemented on this architecture.
|
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.SH "CONFORMING TO"
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.PP
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\fBio_getevents\fR() is Linux specific and should not be used in
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programs that are intended to be portable.
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.SH "VERSIONS"
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|
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.PP
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The asynchronous I/O system calls first appeared in Linux 2.5, August 2002.
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.SH "SEE ALSO"
|
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.PP
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\fBio_setup\fR(2), \fBio_submit\fR(2), \fBio_getevents\fR(2),
|
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\fBio_cancel\fR(2), \fBio_destroy\fR(2).
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.SH "NOTES"
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.PP
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The asynchronous I/O system calls were written by Benjamin LaHaise.
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.SH AUTHOR
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Kent Yoder.
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.\" .SH "NOTES"
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.\"
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.\" .PP
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.\" The asynchronous I/O system calls were written by Benjamin LaHaise.
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.\"
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.\" .SH AUTHOR
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.\" Kent Yoder.
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|
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@ -2,41 +2,40 @@
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.\" This file is distributed according to the GNU General Public License.
|
||||
.\" See the file COPYING in the top level source directory for details.
|
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.\"
|
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.de Sh \" Subsection
|
||||
.br
|
||||
.if t .Sp
|
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.ne 5
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.PP
|
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\fB\\$1\fR
|
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.PP
|
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..
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.de Sp \" Vertical space (when we can't use .PP)
|
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.if t .sp .5v
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||||
.if n .sp
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..
|
||||
.de Ip \" List item
|
||||
.br
|
||||
.ie \\n(.$>=3 .ne \\$3
|
||||
.el .ne 3
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||||
.IP "\\$1" \\$2
|
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..
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.\" .de Sh \" Subsection
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||||
.\" .br
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.\" .if t .Sp
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.\" .ne 5
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.\" .PP
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.\" \fB\\$1\fR
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.\" .PP
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.\" ..
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.\" .de Sp \" Vertical space (when we can't use .PP)
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.\" .if t .sp .5v
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.\" .if n .sp
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.\" ..
|
||||
.\" .de Ip \" List item
|
||||
.\" .br
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||||
.\" .ie \\n(.$>=3 .ne \\$3
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.\" .el .ne 3
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.\" .IP "\\$1" \\$2
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.\" ..
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.TH "IO_SETUP" 2 "2003-02-21" "Linux 2.4" "Linux Programmer's Manual"
|
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.SH NAME
|
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io_setup \- Create an asynchronous I/O context
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io_setup \- create an asynchronous I/O context
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.SH "SYNOPSIS"
|
||||
.ad l
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.hy 0
|
||||
|
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#include <libaio.h>
|
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.nf
|
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.\" .ad l
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.\" .hy 0
|
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.B #include <libaio.h>
|
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.\" #include <linux/aio.h>
|
||||
.sp
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.HP 15
|
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int\ \fBio_setup\fR\ (unsigned\ \fInr_events\fR, aio_context_t\ \fI*ctxp\fR);
|
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.ad
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.hy
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|
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.\" .HP 15
|
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.BI "int io_setup(unsigned " nr_events ", aio_context_t *" ctxp );
|
||||
.\" .ad
|
||||
.\" .hy
|
||||
.fi
|
||||
.SH "DESCRIPTION"
|
||||
|
||||
.PP
|
||||
\fBio_setup\fR() creates an asynchronous I/O context capable of receiving
|
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at least \fInr_events\fR.
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|
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@ -44,57 +43,40 @@ at least \fInr_events\fR.
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|||
be initialized to 0 prior to the call.
|
||||
On successful creation of the AIO context, \fI*ctxp\fR is filled in
|
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with the resulting handle.
|
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|
||||
.SH "RETURN VALUE"
|
||||
|
||||
.PP
|
||||
\fBio_setup\fR() returns 0 on success; otherwise, one of the errors
|
||||
listed in the "Errors" section is returned.
|
||||
|
||||
\fBio_setup\fR() returns 0 on success;
|
||||
on failure, it returns one of the errors listed under ERRORS.
|
||||
.SH "ERRORS"
|
||||
|
||||
.TP
|
||||
EINVAL
|
||||
.B EINVAL
|
||||
\fIctxp\fR is not initialized, or the specified \fInr_events\fR
|
||||
exceeds internal limits. \fInr_events\fR should be greater than 0.
|
||||
|
||||
.TP
|
||||
EFAULT
|
||||
.B EFAULT
|
||||
An invalid pointer is passed for \fIctxp\fR.
|
||||
|
||||
.TP
|
||||
ENOMEM
|
||||
.B ENOMEM
|
||||
Insufficient kernel resources are available.
|
||||
|
||||
.TP
|
||||
EAGAIN
|
||||
.B EAGAIN
|
||||
The specified \fInr_events\fR exceeds the user's limit of available events.
|
||||
|
||||
.TP
|
||||
ENOSYS
|
||||
.B ENOSYS
|
||||
\fBio_setup\fR() is not implemented on this architecture.
|
||||
|
||||
.SH "CONFORMING TO"
|
||||
|
||||
.PP
|
||||
\fBio_setup\fR() is Linux specific and should not be used in programs
|
||||
that are intended to be portable.
|
||||
|
||||
.SH "VERSIONS"
|
||||
|
||||
.PP
|
||||
The asynchronous I/O system calls first appeared in Linux 2.5, August 2002.
|
||||
|
||||
.SH "SEE ALSO"
|
||||
|
||||
.PP
|
||||
\fBio_destroy\fR(2), \fBio_getevents\fR(2), \fBio_submit\fR(2),
|
||||
\fBio_cancel\fR(2).
|
||||
|
||||
.SH "NOTES"
|
||||
|
||||
.PP
|
||||
The asynchronous I/O system calls were written by Benjamin LaHaise.
|
||||
|
||||
.SH AUTHOR
|
||||
Kent Yoder.
|
||||
.\" .SH "NOTES"
|
||||
.\" .PP
|
||||
.\" The asynchronous I/O system calls were written by Benjamin LaHaise.
|
||||
.\" .SH AUTHOR
|
||||
.\" Kent Yoder.
|
||||
|
|
|
|||
104
man2/io_submit.2
104
man2/io_submit.2
|
|
@ -2,97 +2,83 @@
|
|||
.\" This file is distributed according to the GNU General Public License.
|
||||
.\" See the file COPYING in the top level source directory for details.
|
||||
.\"
|
||||
.de Sh \" Subsection
|
||||
.br
|
||||
.if t .Sp
|
||||
.ne 5
|
||||
.PP
|
||||
\fB\\$1\fR
|
||||
.PP
|
||||
..
|
||||
.de Sp \" Vertical space (when we can't use .PP)
|
||||
.if t .sp .5v
|
||||
.if n .sp
|
||||
..
|
||||
.de Ip \" List item
|
||||
.br
|
||||
.ie \\n(.$>=3 .ne \\$3
|
||||
.el .ne 3
|
||||
.IP "\\$1" \\$2
|
||||
..
|
||||
.\" .de Sh \" Subsection
|
||||
.\" .br
|
||||
.\" .if t .Sp
|
||||
.\" .ne 5
|
||||
.\" .PP
|
||||
.\" \fB\\$1\fR
|
||||
.\" .PP
|
||||
.\" ..
|
||||
.\" .de Sp \" Vertical space (when we can't use .PP)
|
||||
.\" .if t .sp .5v
|
||||
.\" .if n .sp
|
||||
.\" ..
|
||||
.\" .de Ip \" List item
|
||||
.\" .br
|
||||
.\" .ie \\n(.$>=3 .ne \\$3
|
||||
.\" .el .ne 3
|
||||
.\" .IP "\\$1" \\$2
|
||||
.\" ..
|
||||
.TH "IO_SUBMIT" 2 "2003-02-21" "Linux 2.4" "Linux Programmer's Manual"
|
||||
.SH NAME
|
||||
io_submit \- Submit asynchronous I/O blocks for processing
|
||||
io_submit \- submit asynchronous I/O blocks for processing
|
||||
.SH "SYNOPSIS"
|
||||
.ad l
|
||||
.hy 0
|
||||
|
||||
#include <linux/aio.h>
|
||||
.nf
|
||||
.\" .ad l
|
||||
.\" .hy 0
|
||||
.B #include <linux/aio.h>
|
||||
.sp
|
||||
.HP 16
|
||||
int\ \fBio_submit\fR\ (aio_context_t\ \fIctx_id\fR, long\ \fInr\fR, struct\ iocb\ \fI**iocbpp\fR);
|
||||
.ad
|
||||
.hy
|
||||
|
||||
.\" .HP 16
|
||||
.BI "int io_submit(aio_context_t " ctx_id ", long " nr \
|
||||
", struct iocb **" iocbpp );
|
||||
.\" .ad
|
||||
.\" .hy
|
||||
.fi
|
||||
.SH "DESCRIPTION"
|
||||
|
||||
.PP
|
||||
\fBio_submit\fR() queues \fInr\fR I/O request blocks for processing in
|
||||
the AIO context \fIctx_id\fR. \fIiocbpp\fR should be an array of
|
||||
\fInr\fR AIO request blocks, which will be submitted to context \fIctx_id\fR.
|
||||
|
||||
\fInr\fR AIO request blocks,
|
||||
which will be submitted to context \fIctx_id\fR.
|
||||
.SH "RETURN VALUE"
|
||||
|
||||
.PP
|
||||
\fBio_submit\fR() returns the number of \fIiocb\fRs submitted and
|
||||
0 if \fInr\fR is zero.
|
||||
|
||||
On success,
|
||||
\fBio_submit\fR() returns the number of \fIiocb\fRs submitted (which may be
|
||||
0 if \fInr\fR is zero);
|
||||
on failure, it returns one of the errors listed under ERRORS.
|
||||
.SH "ERRORS"
|
||||
|
||||
.TP
|
||||
EINVAL
|
||||
.B EINVAL
|
||||
The \fIaio_context\fR specified by \fIctx_id\fR is invalid.
|
||||
\fInr\fR is less than 0. The \fIiocb\fR at *iocbpp[0] is not properly
|
||||
initialized, or the operation specified is invalid for the file descriptor
|
||||
in the \fIiocb\fR.
|
||||
|
||||
.TP
|
||||
EFAULT
|
||||
.B EFAULT
|
||||
One of the data structures points to invalid data.
|
||||
|
||||
.TP
|
||||
EBADF
|
||||
.B EBADF
|
||||
The file descriptor specified in the first \fIiocb\fR is invalid.
|
||||
|
||||
.TP
|
||||
EAGAIN
|
||||
.B EAGAIN
|
||||
Insufficient resources are available to queue any \fIiocb\fRs.
|
||||
|
||||
.TP
|
||||
ENOSYS
|
||||
.B ENOSYS
|
||||
\fBio_submit\fR() is not implemented on this architecture.
|
||||
|
||||
.SH "CONFORMING TO"
|
||||
|
||||
.PP
|
||||
\fBio_submit\fR() is Linux specific and should not be used in
|
||||
programs that are intended to be portable.
|
||||
|
||||
.SH "VERSIONS"
|
||||
|
||||
.PP
|
||||
The asynchronous I/O system calls first appeared in Linux 2.5, August 2002.
|
||||
|
||||
.SH "SEE ALSO"
|
||||
|
||||
.PP
|
||||
\fBio_setup\fR(2), \fBio_destroy\fR(2), \fBio_getevents\fR(2),
|
||||
\fBio_cancel\fR(2).
|
||||
|
||||
.SH "NOTES"
|
||||
|
||||
.PP
|
||||
The asynchronous I/O system calls were written by Benjamin LaHaise.
|
||||
|
||||
.SH AUTHOR
|
||||
Kent Yoder.
|
||||
.\" .SH "NOTES"
|
||||
.\" .PP
|
||||
.\" The asynchronous I/O system calls were written by Benjamin LaHaise.
|
||||
.\" .SH AUTHOR
|
||||
.\" Kent Yoder.
|
||||
|
|
|
|||
Loading…
Reference in New Issue