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authorSverker Eriksson <[email protected]>2019-01-31 19:43:23 +0100
committerSverker Eriksson <[email protected]>2019-01-31 19:43:23 +0100
commit5ab76d9263e4a81ccac2fc5591c520dbce6927de (patch)
tree270c1724d0be6ae3f9ec62ab7303f368b6887cf2 /erts/doc/src
parent10b400a0433cf2ebcffe9ca702a26690123df81f (diff)
parent14fe4c3ccf93c023f851512e573e2bac7d00b232 (diff)
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Merge branch 'maint'
Diffstat (limited to 'erts/doc/src')
-rw-r--r--erts/doc/src/erlang.xml28
1 files changed, 26 insertions, 2 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 92e979c046..b5c59847f6 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -4174,9 +4174,16 @@ RealSystem = system + MissedSystem</code>
</item>
<tag><c>badarg</c></tag>
<item>
- If the port driver so decides for any reason (probably
+ <p>If the port driver so decides for any reason (probably
something wrong with <c><anno>Operation</anno></c>
- or <c><anno>Data</anno></c>).
+ or <c><anno>Data</anno></c>).</p>
+ <warning>
+ <p>Do not call <c>port_call</c> with an unknown
+ <c><anno>Port</anno></c> identifier and expect <c>badarg</c>
+ exception. Any undefined behavior is possible (including node
+ crash) depending on how the port driver interprets the supplied
+ arguments.</p>
+ </warning>
</item>
</taglist>
</desc>
@@ -4266,6 +4273,11 @@ RealSystem = system + MissedSystem</code>
<p>If <c><anno>Data</anno></c> is an invalid I/O list.</p>
</item>
</taglist>
+ <warning>
+ <p>Do not send data to an unknown port. Any undefined behavior is
+ possible (including node crash) depending on how the port driver
+ interprets the data.</p>
+ </warning>
</desc>
</func>
@@ -4325,6 +4337,11 @@ RealSystem = system + MissedSystem</code>
a busy port.
</item>
</taglist>
+ <warning>
+ <p>Do not send data to an unknown port. Any undefined behavior is
+ possible (including node crash) depending on how the port driver
+ interprets the data.</p>
+ </warning>
</desc>
</func>
@@ -4429,6 +4446,13 @@ RealSystem = system + MissedSystem</code>
If the port driver so decides for any reason (probably
something wrong with <c><anno>Operation</anno></c> or
<c><anno>Data</anno></c>).
+ <warning>
+ <p>Do not call <c>port_control/3</c> with an unknown
+ <c><anno>Port</anno></c> identifier and expect <c>badarg</c>
+ exception. Any undefined behavior is possible (including node
+ crash) depending on how the port driver interprets the supplied
+ arguments.</p>
+ </warning>
</item>
</taglist>
</desc>