From 360faea1aea72b0bc8d6aea22d65ba896bbd9d08 Mon Sep 17 00:00:00 2001
From: Dominik Werder <dominik.werder@gmail.com>
Date: Thu, 13 Mar 2025 10:31:19 +0100
Subject: [PATCH] Add helpers

---
 src/netpod.rs        | 6 +++++-
 src/range/evrange.rs | 7 +++++++
 src/ttl.rs           | 9 +++++++++
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/netpod.rs b/src/netpod.rs
index 7017bac..0b985f4 100644
--- a/src/netpod.rs
+++ b/src/netpod.rs
@@ -4523,7 +4523,11 @@ pub fn req_uri_to_url(uri: &Uri) -> Result<Url, UriError> {
     }
 }
 
-pub unsafe fn extltref<'a, 'b, T>(t: &'a T) -> &'b T {
+pub unsafe fn extltref<'a, 'b, T>(x: &'a T) -> &'b T {
+    &*(x as *const T)
+}
+
+pub unsafe fn extltref2<'a, 'b, T>(t: &'a T) -> &'b T {
     core::mem::transmute(t)
 }
 
diff --git a/src/range/evrange.rs b/src/range/evrange.rs
index 518e4f7..93d7f83 100644
--- a/src/range/evrange.rs
+++ b/src/range/evrange.rs
@@ -198,6 +198,13 @@ impl SeriesRange {
             SeriesRange::PulseRange(x) => x.end - x.beg,
         }
     }
+
+    pub fn to_time(&self) -> Option<NanoRange> {
+        match self {
+            SeriesRange::TimeRange(x) => Some(x.clone()),
+            SeriesRange::PulseRange(_) => None,
+        }
+    }
 }
 
 impl fmt::Debug for SeriesRange {
diff --git a/src/ttl.rs b/src/ttl.rs
index 61710cf..a564e19 100644
--- a/src/ttl.rs
+++ b/src/ttl.rs
@@ -74,6 +74,15 @@ impl RetentionTime {
             RetentionTime::Long => 12,
         }
     }
+
+    pub fn from_str(x: &str) -> Result<Self, Error> {
+        match x {
+            "short" => Ok(Self::Short),
+            "medium" => Ok(Self::Medium),
+            "long" => Ok(Self::Long),
+            _ => Err(Error::Parse),
+        }
+    }
 }
 
 impl fmt::Display for RetentionTime {