Adding upstream version 247.3.upstream/247.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 107 insertions, 0 deletions

diff --git a/man/sd_bus_message_get_cookie.xml b/man/sd_bus_message_get_cookie.xml
new file mode 100644
index 0000000..148bda5
--- /dev/null
+++ b/man/sd_bus_message_get_cookie.xml
@@ -0,0 +1,107 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
+  "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
+
+<refentry id="sd_bus_message_get_cookie"
+          xmlns:xi="http://www.w3.org/2001/XInclude">
+
+  <refentryinfo>
+    <title>sd_bus_message_get_cookie</title>
+    <productname>systemd</productname>
+  </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 &lt;systemd/sd-bus.h&gt;</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, they 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>
+
+    <refsect2>
+      <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>
+    </refsect2>
+  </refsect1>
+
+  <xi:include href="libsystemd-pkgconfig.xml" />
+
+  <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>