os_mon: allow check intervals smaller than 1 minute

- expand type of `disk_space_check_interval` to `Minute | {TimeUnit, Time}`

1 files changed, 33 insertions, 6 deletions

diff --git a/lib/os_mon/doc/src/disksup.xml b/lib/os_mon/doc/src/disksup.xml
index 47eff80ff5..daba73007f 100644
--- a/lib/os_mon/doc/src/disksup.xml
+++ b/lib/os_mon/doc/src/disksup.xml
@@ -57,15 +57,42 @@
       longer valid.</p>
   </description>
 
+  <datatypes>
+    <datatype>
+      <name>time()</name>
+      <desc>
+        <p>Supported units:</p>
+        <taglist>
+          <tag><c>integer() >= 1</c></tag>
+          <item>
+            <p>The time interval in minutes.</p>
+          </item>
+          <tag><c>{TimeUnit, Time}</c></tag>
+          <item>
+            <p>
+              The time interval <c>Time</c> in a time unit specified by <c>TimeUnit</c> where
+              <c>TimeUnit</c> is of the type
+              <seetype marker="erts:erlang#time_unit"><c>erlang:time_unit()</c></seetype>
+              and <c>Time</c> is a positive integer. The time interval needs to be at least one
+              millisecond long.
+            </p>
+          </item>
+        </taglist>
+      </desc>
+    </datatype>
+  </datatypes>
+
   <section>
     <marker id="config"></marker>
     <title>Configuration</title>
     <p>The following configuration parameters can be used to change
       the default values for time interval and threshold:</p>
     <taglist>
-      <tag><c>disk_space_check_interval = int()>0</c></tag>
+      <tag>
+        <c>disk_space_check_interval = </c><seetype marker="#time"><c>time()</c></seetype>
+      </tag>
       <item>
-        <p>The time interval, in minutes, for the periodic disk space
+        <p>The time interval for the periodic disk space
           check. The default is 30 minutes.</p>
       </item>
       <tag><c>disk_almost_full_threshold = float()</c></tag>
@@ -123,13 +150,13 @@
       </desc>
     </func>
     <func>
-      <name since="">set_check_interval(Minutes) -> ok</name>
-      <fsummary>Set time interval, in minutes, for the periodic disk space check</fsummary>
+      <name since="">set_check_interval(Time) -> ok</name>
+      <fsummary>Set time interval for the periodic disk space check</fsummary>
       <type>
-        <v>Minutes = int()>=1</v>
+        <v>Time = <seetype marker="#time">time()</seetype></v>
       </type>
       <desc>
-        <p>Changes the time interval, given in minutes, for the periodic
+        <p>Changes the time interval for the periodic
           disk space check.</p>
         <p>The change will take effect after the next disk space check
           and is non-persist. That is, in case of a process restart,