From 8ad9e862e2f1da57b0a68cf3785bdee68859a323 Mon Sep 17 00:00:00 2001
From: Jiri Kalvoda <jirikalvoda@kam.mff.cuni.cz>
Date: Sun, 14 Aug 2022 21:55:25 +0200
Subject: [PATCH] Wrappers: Cache
---
Wrappers.cs | 37 +++++++++++++++++++++++++++++++++++++
sample.conf | 5 +++++
2 files changed, 42 insertions(+)
diff --git a/Wrappers.cs b/Wrappers.cs
index e24681f..822e8f0 100644
--- a/Wrappers.cs
+++ b/Wrappers.cs
@@ -68,6 +68,9 @@ abstract partial class StatusBar
}
}
+ if(section.Contains("_cache"))
+ module = new WrapperCache(module, section.Mandatory("_cache").AsMs());
+
module.Init(parrent, section);
return module;
}
@@ -145,3 +148,37 @@ class WrapperExec: ModuleWrapper
}
}).ToArray();
}
+
+class WrapperCache: ModuleWrapper
+{
+ IEnumerable<Block> data;
+ long? dataTime_ms;
+ long maxOld_ms;
+ bool wantRedraw = false;
+ public WrapperCache(Module _child, long _maxOld_ms):base(_child)
+ {
+ maxOld_ms = _maxOld_ms;
+ }
+ override public IEnumerable<Block> Get()
+ {
+ lock(this)
+ if(wantRedraw)
+ {
+ data = null;
+ dataTime_ms = null;
+ }
+ child.Get();
+ if(dataTime_ms == null || dataTime_ms + maxOld_ms <= Environment.TickCount64)
+ {
+ dataTime_ms = Environment.TickCount64;
+ data = child.Get();
+ }
+ return data;
+ }
+ override public void Schedule(int in_ms)
+ {
+ lock(this)
+ wantRedraw = true;
+ parent.Schedule(in_ms);
+ }
+}
diff --git a/sample.conf b/sample.conf
index 4e9906b..b9edc21 100644
--- a/sample.conf
+++ b/sample.conf
@@ -311,6 +311,11 @@ _exec right super shift = osdc "Super+Shift+Right pressed"
# <string>
# Command to run
+_cache = 10
+# <time>
+# Fetch data from module only once per this time.
+# Note that visible data couldn't be more than (_cache + refresh) old.
+
# Parsers:
# ========
--
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