redirect stderr to shim log

1

@@ -0,0 +1,12 @@
+optimize signals handle
+
+# 请为您的变更输入提交说明。以 '#' 开始的行将被忽略，而一个空的提交
+# 说明将会终止提交。
+#
+# 日期：  Tue Jul 30 18:27:47 2024 +0800
+#
+# 位于分支 f3
+# 要提交的变更：
+#	修改：     crates/runc-shim/src/main.rs
+#	修改：     crates/shim/src/asynchronous/mod.rs
+#

crates/runc-shim/src/main.rs

@@ -15,8 +15,9 @@
 */
 
 use std::env;
-use tokio::runtime::Builder;
+
 use containerd_shim::{asynchronous::run, parse};
+use tokio::runtime::Builder;
 
 mod cgroup_memory;
 mod common;

crates/shim/src/logger.rs

@@ -19,6 +19,7 @@ use std::{
     fmt::Write as fmtwrite,
     fs::{File, OpenOptions},
     io::{self, Write},
+    os::unix::io::AsRawFd,
     path::Path,
     str::FromStr,
     sync::Mutex,
@@ -58,6 +59,15 @@ impl FifoLogger {
             file: Mutex::new(f),
         })
     }
+
+    #[allow(dead_code)]
+    pub fn get_raw_fd(&self) -> io::Result<libc::c_int> {
+        let file = self
+            .file
+            .lock()
+            .map_err(|_| io::Error::new(io::ErrorKind::Other, "Mutex poisoned"))?;
+        Ok(file.as_raw_fd())
+    }
 }
 
 pub(crate) struct SimpleWriteVistor {
@@ -152,6 +162,10 @@ fn configure_logging_level(debug: bool, default_log_level: &str) {
     } else {
         debug_level
     };
+    let raw_fd = logger.get_raw_fd().unwrap();
+    unsafe {
+        libc::dup2(raw_fd, libc::STDERR_FILENO);
+    }
     log::set_max_level(level);
 }