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Diffstat (limited to 'man/sd_bus_message_get_cookie.xml')
| -rw-r--r-- | man/sd_bus_message_get_cookie.xml | 246 |
1 files changed, 120 insertions, 126 deletions
diff --git a/man/sd_bus_message_get_cookie.xml b/man/sd_bus_message_get_cookie.xml index 3e3f9bd7be..02374d7508 100644 --- a/man/sd_bus_message_get_cookie.xml +++ b/man/sd_bus_message_get_cookie.xml @@ -1,6 +1,6 @@ <?xml version='1.0'?> <!--*-nxml-*--> <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" - "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> <!-- This file is part of systemd. @@ -23,130 +23,124 @@ <refentry id="sd_bus_message_get_cookie" conditional="ENABLE_KDBUS"> - <refentryinfo> - <title>sd_bus_message_get_cookie</title> - <productname>systemd</productname> - - <authorgroup> - <author> - <contrib>Developer</contrib> - <firstname>Lennart</firstname> - <surname>Poettering</surname> - <email>lennart@poettering.net</email> - </author> - </authorgroup> - </refentryinfo> - - <refmeta> - <refentrytitle>sd_bus_message_get_cookie</refentrytitle> - <manvolnum>3</manvolnum> - </refmeta> - - <refnamediv> - <refname>sd_bus_message_get_cookie</refname> - <refname>sd_bus_message_get_reply_cookie</refname> - <refpurpose>Returns the transaction cookie of a message</refpurpose> - </refnamediv> - - <refsynopsisdiv> - <funcsynopsis> - <funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo> - - <funcprototype> - <funcdef>int <function>sd_bus_message_get_cookie</function></funcdef> - <paramdef>sd_bus_message *<parameter>message</parameter></paramdef> - <paramdef>uint64_t *<parameter>cookie</parameter></paramdef> - </funcprototype> - - <funcprototype> - <funcdef>int <function>sd_bus_message_get_reply_cookie</function></funcdef> - <paramdef>sd_bus_message *<parameter>message</parameter></paramdef> - <paramdef>uint64_t *<parameter>cookie</parameter></paramdef> - </funcprototype> - </funcsynopsis> - </refsynopsisdiv> - - <refsect1> - <title>Description</title> - - <para><function>sd_bus_message_get_cookie()</function> returns - the transaction cookie of a message. The cookie - uniquely identifies a message within each bus peer, - but is not globally unique. It is assigned when a - message is sent.</para> - - <para><function>sd_bus_message_get_reply_cookie()</function> - returns the transaction cookie of the message the - specified message is a response to. When a reply - message is generated for a method call message, its - cookie is copied over into this field. Note that while - every message that is transferred is identified by a - cookie, only response messages carry a reply cookie - field.</para> - - <para>Both functions take a message object as first - parameter and a place to store the 64-bit cookie - in.</para> - </refsect1> - - <refsect1> - <title>Return Value</title> - - <para>On success, these calls return 0 or a positive - integer. On failure, these calls return a negative - errno-style error code.</para> - - <para>On success, the cookie/reply cookie is returned - in the specified 64-bit unsigned integer variable.</para> - </refsect1> - - <refsect1> - <title>Errors</title> - - <para>Returned errors may indicate the following problems:</para> - - <variablelist> - <varlistentry> - <term><constant>-EINVAL</constant></term> - - <listitem><para>A specified parameter - is invalid.</para></listitem> - </varlistentry> - - <varlistentry> - <term><constant>-ENODATA</constant></term> - - <listitem><para>No cookie has been - assigned to this message. This either - indicates that the message has not - been sent yet and hence has no cookie - assigned, or that the message is not a - method response message and hence - carries a reply cookie - field.</para></listitem> - </varlistentry> - </variablelist> - </refsect1> - - <refsect1> - <title>Notes</title> - - <para>The <function>sd_bus_message_get_cookie()</function> - and <function>sd_bus_message_get_reply_cookie()</function> - interfaces are available as a shared library, which can - be compiled and linked to with the - <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> - file.</para> - </refsect1> - - <refsect1> - <title>See Also</title> - - <para> - <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>, - <citerefentry><refentrytitle>sd_bus_new</refentrytitle><manvolnum>3</manvolnum></citerefentry> - </para> - </refsect1> + <refentryinfo> + <title>sd_bus_message_get_cookie</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>sd_bus_message_get_cookie</refentrytitle> + <manvolnum>3</manvolnum> + </refmeta> + + <refnamediv> + <refname>sd_bus_message_get_cookie</refname> + <refname>sd_bus_message_get_reply_cookie</refname> + <refpurpose>Returns the transaction cookie of a message</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcsynopsisinfo>#include <systemd/sd-bus.h></funcsynopsisinfo> + + <funcprototype> + <funcdef>int <function>sd_bus_message_get_cookie</function></funcdef> + <paramdef>sd_bus_message *<parameter>message</parameter></paramdef> + <paramdef>uint64_t *<parameter>cookie</parameter></paramdef> + </funcprototype> + + <funcprototype> + <funcdef>int <function>sd_bus_message_get_reply_cookie</function></funcdef> + <paramdef>sd_bus_message *<parameter>message</parameter></paramdef> + <paramdef>uint64_t *<parameter>cookie</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><function>sd_bus_message_get_cookie()</function> returns the + transaction cookie of a message. The cookie uniquely identifies a + message within each bus peer, but is not globally unique. It is + assigned when a message is sent.</para> + + <para><function>sd_bus_message_get_reply_cookie()</function> + returns the transaction cookie of the message the specified + message is a response to. When a reply message is generated for a + method call message, its cookie is copied over into this field. + Note that while every message that is transferred is identified by + a cookie, only response messages carry a reply cookie + field.</para> + + <para>Both functions take a message object as first parameter and + a place to store the 64-bit cookie in.</para> + </refsect1> + + <refsect1> + <title>Return Value</title> + + <para>On success, these calls return 0 or a positive integer. On + failure, these calls return a negative errno-style error + code.</para> + + <para>On success, the cookie/reply cookie is returned in the + specified 64-bit unsigned integer variable.</para> + </refsect1> + + <refsect1> + <title>Errors</title> + + <para>Returned errors may indicate the following problems:</para> + + <variablelist> + <varlistentry> + <term><constant>-EINVAL</constant></term> + + <listitem><para>A specified parameter + is invalid.</para></listitem> + </varlistentry> + + <varlistentry> + <term><constant>-ENODATA</constant></term> + + <listitem><para>No cookie has been assigned to this message. + This either indicates that the message has not been sent yet + and hence has no cookie assigned, or that the message is not a + method response message and hence carries a reply cookie + field.</para></listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Notes</title> + + <para>The <function>sd_bus_message_get_cookie()</function> and + <function>sd_bus_message_get_reply_cookie()</function> interfaces + are available as a shared library, which can be compiled and + linked to with the + <constant>libsystemd</constant> <citerefentry project='die-net'><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry> + file.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>sd-bus</refentrytitle><manvolnum>3</manvolnum></citerefentry>, + <citerefentry><refentrytitle>sd_bus_new</refentrytitle><manvolnum>3</manvolnum></citerefentry> + </para> + </refsect1> </refentry> |