From b6ada56d06391c392d6956724bab8368694e2f06 Mon Sep 17 00:00:00 2001
From: Siwei Zhang <siwei.zhang@ericsson.com>
Date: Mon, 23 Sep 2024 16:42:10 +0200
Subject: [PATCH] Expose the clock and frequency in CtfTmfTrace

The frequency of the CtfTmfTrace is currently exposed in
an indirect way using cyclesToNanos(). But sometimes there
is the need to get direct frequency. This commit added public
methods to get the direct frequency.

[Added] public method to get clock info in CTFTmfTrace
[Added] public method to get frequency in CTFClock

Signed-off-by: Siwei Zhang <siwei.zhang@ericsson.com>
---
 .../tracecompass/ctf/core/event/CTFClock.java      |  6 ++++++
 .../tmf/ctf/core/trace/CtfTmfTrace.java            | 14 ++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/ctf/org.eclipse.tracecompass.ctf.core/src/org/eclipse/tracecompass/ctf/core/event/CTFClock.java b/ctf/org.eclipse.tracecompass.ctf.core/src/org/eclipse/tracecompass/ctf/core/event/CTFClock.java
index cf58d0bcc6..3b354e2ec8 100644
--- a/ctf/org.eclipse.tracecompass.ctf.core/src/org/eclipse/tracecompass/ctf/core/event/CTFClock.java
+++ b/ctf/org.eclipse.tracecompass.ctf.core/src/org/eclipse/tracecompass/ctf/core/event/CTFClock.java
@@ -159,4 +159,10 @@ public boolean isClockScaled() {
         return fIsScaled;
     }
 
+    /**
+     * @return the frequency in Hz
+     */
+    public long getFrequency() {
+        return ((Long) getProperty(FREQ));
+    }
 }
diff --git a/ctf/org.eclipse.tracecompass.tmf.ctf.core/src/org/eclipse/tracecompass/tmf/ctf/core/trace/CtfTmfTrace.java b/ctf/org.eclipse.tracecompass.tmf.ctf.core/src/org/eclipse/tracecompass/tmf/ctf/core/trace/CtfTmfTrace.java
index d34aebde0d..0b5b496e30 100644
--- a/ctf/org.eclipse.tracecompass.tmf.ctf.core/src/org/eclipse/tracecompass/tmf/ctf/core/trace/CtfTmfTrace.java
+++ b/ctf/org.eclipse.tracecompass.tmf.ctf.core/src/org/eclipse/tracecompass/tmf/ctf/core/trace/CtfTmfTrace.java
@@ -560,6 +560,20 @@ public Map<String, String> getEnvironment() {
         return trace.getEnvironment();
     }
 
+    /**
+     * Get the CTF clock defined in this CTF trace, in <name, value>
+     * form. This comes from the trace's CTF metadata.
+     *
+     * @return The CTF environment
+     */
+    public CTFClock getClock() {
+        CTFTrace trace = fTrace;
+        if (trace == null) {
+            return null;
+        }
+        return trace.getClock();
+    }
+
     /**
      * @since 3.0
      */