From d1f14bcc50fc245d225f47d7012269a6621bebd5 Mon Sep 17 00:00:00 2001
From: nokyan <hello@nokyan.net>
Date: Fri, 24 Jan 2025 06:36:43 +0100
Subject: [PATCH] Trace contents of drm files when reading them

---
 src/utils/gpu/mod.rs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/utils/gpu/mod.rs b/src/utils/gpu/mod.rs
index bfd652c..35b9c02 100644
--- a/src/utils/gpu/mod.rs
+++ b/src/utils/gpu/mod.rs
@@ -193,23 +193,28 @@ pub trait GpuImpl {
 
     fn read_sysfs_int<P: AsRef<Path> + std::marker::Send>(&self, file: P) -> Result<isize> {
         let path = self.sysfs_path().join(file);
-        trace!("Reading {path:?}…");
+        trace!("Reading {path:?} (parsing to int)…");
         std::fs::read_to_string(&path)?
             .replace('\n', "")
             .parse::<isize>()
+            .inspect(|int| trace!("{path:?} → {int} (size)"))
             .with_context(|| format!("error parsing file {}", &path.to_string_lossy()))
     }
 
     fn read_device_file<P: AsRef<Path> + std::marker::Send>(&self, file: P) -> Result<String> {
         let path = self.sysfs_path().join("device").join(file);
         trace!("Reading {path:?}…");
-        Ok(std::fs::read_to_string(path)?.replace('\n', ""))
+        std::fs::read_to_string(&path)
+            .map(|s| s.replace('\n', ""))
+            .inspect(|s| trace!("{path:?} → {s} (String)"))
+            .with_context(|| format!("error reading file {}", &path.to_string_lossy()))
     }
 
     fn read_device_int<P: AsRef<Path> + std::marker::Send>(&self, file: P) -> Result<isize> {
         let path = self.sysfs_path().join("device").join(file);
         self.read_device_file(&path)?
             .parse::<isize>()
+            .inspect(|int| trace!("{path:?} → {int} (size)"))
             .with_context(|| format!("error parsing file {}", &path.to_string_lossy()))
     }
 
@@ -219,6 +224,7 @@ pub trait GpuImpl {
         std::fs::read_to_string(&path)?
             .replace('\n', "")
             .parse::<isize>()
+            .inspect(|int| trace!("{path:?} → {int} (size)"))
             .with_context(|| format!("error parsing file {}", &path.to_string_lossy()))
     }