kernel: Optimized log timestamp processing and added manual refresh functionality.

kernel/sulog.c

@@ -33,25 +33,21 @@ static struct workqueue_struct *sulog_workqueue;
 static struct work_struct sulog_work;
 static bool sulog_enabled = true;
 
+extern struct timezone sys_tz;
+
 static void get_timestamp(char *buf, size_t len)
 {
-	struct timespec64 ts, boottime;
+	struct timespec64 ts;
 	struct tm tm;
-	s64 real_time;
 
-	ktime_get_boottime_ts64(&boottime);
-	ktime_get_ts64(&ts);
+	ktime_get_real_ts64(&ts);
 
-	real_time = boottime.tv_sec;
-	if (real_time < 946684800) {
-		real_time = ts.tv_sec;
-	}
+	time64_to_tm(ts.tv_sec - sys_tz.tz_minuteswest * 60, 0, &tm);
 
-	time64_to_tm(real_time, 0, &tm);
-	
-	snprintf(buf, len, "%04ld-%02d-%02d %02d:%02d:%02d",
-		tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
-		tm.tm_hour, tm.tm_min, tm.tm_sec);
+	snprintf(buf, len,
+		 "%04ld-%02d-%02d %02d:%02d:%02d",
+		 tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
+		 tm.tm_hour, tm.tm_min, tm.tm_sec);
 }
 
 static void get_full_comm(char *comm_buf, size_t buf_len)

manager/app/src/main/java/com/sukisu/ultra/ui/screen/LogViewerScreen.kt

@@ -36,8 +36,11 @@ import com.sukisu.ultra.ui.theme.getCardColors
 import com.sukisu.ultra.ui.theme.getCardElevation
 import com.sukisu.ultra.ui.util.*
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
+import java.time.*
+import java.time.format.DateTimeFormatter
 
 private val SPACING_SMALL = 4.dp
 private val SPACING_MEDIUM = 8.dp
@@ -61,6 +64,9 @@ enum class LogType(val displayName: String, val color: Color) {
     UNKNOWN("UNKNOWN", Color(0xFF757575))
 }
 
+private val utcFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")
+private val localFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")
+
 @OptIn(ExperimentalMaterial3Api::class)
 @Destination<RootGraph>
 @Composable
@@ -91,6 +97,19 @@ fun LogViewerScreen(navigator: DestinationsNavigator) {
     val loadingDialog = rememberLoadingDialog()
     val confirmDialog = rememberConfirmDialog()
 
+    val onManualRefresh: () -> Unit = {
+        scope.launch {
+            loadLogs(selectedLogFile) { logEntries = it }
+        }
+    }
+
+    LaunchedEffect(selectedLogFile) {
+        while (true) {
+            delay(3_000)
+            onManualRefresh()
+        }
+    }
+
     LaunchedEffect(selectedLogFile) {
         loadLogs(selectedLogFile) { entries ->
             logEntries = entries
@@ -106,6 +125,7 @@ fun LogViewerScreen(navigator: DestinationsNavigator) {
                 searchQuery = searchQuery,
                 onSearchQueryChange = { searchQuery = it },
                 onSearchToggle = { showSearchBar = !showSearchBar },
+                onRefresh = onManualRefresh,
                 onClearLogs = {
                     scope.launch {
                         val result = confirmDialog.awaitConfirm(
@@ -435,6 +455,7 @@ private fun LogViewerTopBar(
     searchQuery: String,
     onSearchQueryChange: (String) -> Unit,
     onSearchToggle: () -> Unit,
+    onRefresh: () -> Unit,
     onClearLogs: () -> Unit
 ) {
     val colorScheme = MaterialTheme.colorScheme
@@ -467,6 +488,12 @@ private fun LogViewerTopBar(
                         contentDescription = stringResource(R.string.log_viewer_search)
                     )
                 }
+                IconButton(onClick = onRefresh) {
+                    Icon(
+                        imageVector = Icons.Filled.Refresh,
+                        contentDescription = stringResource(R.string.log_viewer_refresh)
+                    )
+                }
                 IconButton(onClick = onClearLogs) {
                     Icon(
                         imageVector = Icons.Filled.DeleteSweep,
@@ -574,12 +601,21 @@ private fun parseLogEntries(logContent: String): List<LogEntry> {
         }
         .reversed() // 最新的日志在前面
 }
+private fun utcToLocal(utc: String): String {
+    return try {
+        val instant = LocalDateTime.parse(utc, utcFormatter).atOffset(ZoneOffset.UTC).toInstant()
+        val local = instant.atZone(ZoneId.systemDefault())
+        local.format(localFormatter)
+    } catch (_: Exception) {
+        utc
+    }
+}
 
 private fun parseLogLine(line: String): LogEntry? {
     // 解析格式: [timestamp] TYPE: UID=xxx COMM=xxx ...
     val timestampRegex = """\[(.*?)]""".toRegex()
     val timestampMatch = timestampRegex.find(line) ?: return null
-    val timestamp = timestampMatch.groupValues[1]
+    val timestamp = utcToLocal(timestampMatch.groupValues[1])
 
     val afterTimestamp = line.substring(timestampMatch.range.last + 1).trim()
     val parts = afterTimestamp.split(":")