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man: fix sd_bus_add_node_enumerator() ret_nodes

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ret_nodes is NULL terminated, the return value isn't a count.
This commit is contained in:
Matt Johnston 2021-06-15 11:49:26 +08:00 committed by Luca Boccassi
parent 21d03e6c63
commit e65357b658
1 changed files with 3 additions and 2 deletions
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5
man/sd_bus_add_node_enumerator.xml
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@ -58,8 +58,9 @@
<para><parameter>callback</parameter> is called with the path and userdata pointer registered
with <function>sd_bus_add_node_enumerator()</function>. When called, it should store all the
child object paths of the given path prefix in <parameter>ret_nodes</parameter> and return the
number of child objects under the given prefix. If an error occurs, it can either return a
child object paths of the given path prefix in <parameter>ret_nodes</parameter> with a NULL
terminator item. The callback should return a non-negative value on success.
If an error occurs, it can either return a
negative integer, set <parameter>ret_error</parameter> to a non-empty error or do both. Any
errors returned by the callback are encoded as D-Bus errors and sent back to the caller. Errors
in <parameter>ret_error</parameter> take priority over negative return values.</para>