X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=man%2Fsd_is_fifo.xml;h=a790c370e10652b8cf5c909ba36f8093b7980d98;hb=693093c6db9d8510729b7566e74182b4ff50e31c;hp=238954613097f07527a1c1be236eb8a055955c6c;hpb=f9378423b9758861850748aeb49ae0d3300e56e6;p=elogind.git
diff --git a/man/sd_is_fifo.xml b/man/sd_is_fifo.xml
index 238954613..a790c370e 100644
--- a/man/sd_is_fifo.xml
+++ b/man/sd_is_fifo.xml
@@ -8,16 +8,16 @@
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see .
-->
@@ -47,12 +47,13 @@
sd_is_socket
sd_is_socket_inet
sd_is_socket_unix
+ sd_is_mq
Check the type of a file descriptor
- #include "sd-daemon.h"
+ #include <systemd/sd-daemon.h>
int sd_is_fifo
@@ -86,6 +87,12 @@
size_t length
+
+ int sd_is_mq
+ int fd
+ const char *path
+
+
@@ -94,20 +101,23 @@
sd_is_fifo() may be called
to check whether the specified file descriptor refers
- to a FIFO or pipe. It the path
- parameter is not NULL it is checked whether the FIFO
- is bound to the specified file system path.
+ to a FIFO or pipe. If the path
+ parameter is not NULL, it is
+ checked whether the FIFO is bound to the specified
+ file system path.
sd_is_socket() may be
called to check whether the specified file descriptor
- refers to a socket. It the
+ refers to a socket. If the
family parameter is not
- AF_UNSPEC it is checked whether the socket is of the
- specified family (AF_UNIX, AF_INET, ...). If the
- type parameter is not 0 it is
+ AF_UNSPEC, it is checked whether
+ the socket is of the specified family (AF_UNIX,
+ AF_INET, ...). If the
+ type parameter is not 0, it is
checked whether the socket is of the specified type
- (SOCK_STREAM, SOCK_DGRAM, ...). If the
- listening parameter is positive
+ (SOCK_STREAM,
+ SOCK_DGRAM, ...). If the
+ listening parameter is positive,
it is checked whether the socket is in accepting mode,
i.e. listen() has been called for
it. If listening is 0, it is
@@ -122,20 +132,27 @@
optionally checks the IPv4 or IPv6 port number the
socket is bound to, unless port
is zero. For this call family
- must be passed as either AF_UNSPEC, AF_INET or
- AF_INET6.
+ must be passed as either AF_UNSPEC, AF_INET, or
+ AF_INET6.
sd_is_socket_unix() is
- similar to sd_is_socket(), but
- optionally checks the AF_UNIX path the socket is bound
+ similar to sd_is_socket() but
+ optionally checks the AF_UNIX path the socket is bound
to, unless the path parameter
- is NULL. For normal file system AF_UNIX sockets set
- the length parameter to 0. For
- Linux abstract namespace sockets set the
+ is NULL. For normal file system AF_UNIX sockets,
+ set the length parameter to 0. For
+ Linux abstract namespace sockets, set the
length to the size of the
- address, including the initial 0 byte and set
+ address, including the initial 0 byte, and set the
path to the initial 0 byte of
the socket address.
+
+ sd_is_mq() may be called to
+ check whether the specified file descriptor refers to
+ a POSIX message queue. If the
+ path parameter is not
+ NULL, it is checked whether the
+ message queue is bound to the specified name.
@@ -154,7 +171,7 @@
These functions are provided by the reference
implementation of APIs for new-style daemons and
distributed with the systemd package. The algorithms
- they implement are simple, and can easily be
+ they implement are simple, and they can easily be
reimplemented in daemons if it is important to support
this interface without using the reference
implementation.
@@ -164,21 +181,24 @@
getsockname() to check the file
descriptor type and where it is bound to.
- For details about the algorithm check the
+ For details about the algorithms, check the
liberally licensed reference implementation sources:
-
- resp.
+
+ and
sd_is_fifo() and the
related functions are implemented in the reference
- implementation's drop-in
- sd-daemon.c and
- sd-daemon.h files. It is
- recommended that applications consuming these APIs
- copy the implementation into their source tree. For
- more details about the reference implementation see
- sd_daemon7
+ implementation's sd-daemon.c and
+ sd-daemon.h files. These
+ interfaces are available as shared library, which can
+ be compiled and linked to with the
+ libsystemd-daemon pkg-config1
+ file. Alternatively, applications consuming these APIs
+ may copy the implementation into their source
+ tree. For more details about the reference
+ implementation see
+ sd-daemon3.
These functions continue to work as described,
even if -DDISABLE_SYSTEMD is set during
@@ -188,12 +208,12 @@
See Also
- sd_daemon7,
+ systemd1,
+ sd-daemon3,
sd_listen_fds3,
- systemd8,
systemd.service5,
systemd.socket5
-
+