update: more rust log levels

include/constant.h.in

@@ -37,6 +37,10 @@
 #define ASSET_CHINA_IP   "china-ip.txt"
 #define ASSET_CHINA_LIST "chinalist.txt"
 
+#define RUST_LOG_INFO   0
+#define RUST_LOG_DEBUG  1
+#define RUST_LOG_TRACE  2
+
 #define EXIT_NORMAL     0
 #define EXIT_FORK_ERROR 1
 #define EXIT_EXEC_ERROR 2

src/assets/src/ffi.rs

@@ -1,9 +1,9 @@
 use std::io::Write;
 use std::env::set_var;
+use log::{debug, warn};
 use std::path::PathBuf;
 use std::fs::OpenOptions;
 use std::os::raw::c_char;
-use log::{debug, trace, warn};
 use std::ffi::{CStr, CString};
 use crate::fetch::asset_fetch;
 
@@ -29,12 +29,15 @@ unsafe fn load_c_string_list(ptr: *const *const c_char) -> Vec<String> {
     string_list
 }
 
-/// Initialize the rust module log, enable trace level log when verbose is not `0`.
+/// Initialize the rust module log, using info level log when verbose is `0`,
+/// enable debug level when verbose is `1`, and others for trace level.
 #[no_mangle]
 pub unsafe extern "C" fn assets_log_init(verbose: u8, prefix: *const c_char) {
-    if verbose == FALSE { // bool value `FALSE`
+    if verbose == 0 { // info level
         set_var("RUST_LOG", "info");
-    } else {
+    } else if verbose == 1 { // debug level
+        set_var("RUST_LOG", "debug");
+    } else { // trace level
         set_var("RUST_LOG", "trace");
     }
     let log_prefix = load_c_string(prefix);
@@ -68,8 +71,8 @@ pub async unsafe extern "C" fn asset_update(
     let name = load_c_string(file); // import c-style string
     let sources = load_c_string_list(sources);
     let assets_dir = load_c_string(assets_dir);
-    trace!("Working folder is `{}`", assets_dir);
+    debug!("Working folder is `{}`", assets_dir);
-    trace!("Updating `{}` from {:?}", name, sources);
+    debug!("Updating `{}` from {:?}", name, sources);
 
     let assets_dir = PathBuf::from(&assets_dir);
     let is_remote = |src: &str| {

src/cleardns.c

@@ -64,12 +64,16 @@ void init(int argc, char *argv[]) { // return config file
 }
 
 void cleardns() { // cleardns service
+    uint8_t rust_log_level = RUST_LOG_INFO; // using info level as default
     if (settings.verbose || settings.debug) {
         LOG_LEVEL = LOG_DEBUG; // enable debug log level
-        assets_log_init(TRUE, LOG_PREFIX);
+        rust_log_level = RUST_LOG_DEBUG;
-    } else {
+        if (settings.debug) {
-        assets_log_init(FALSE, LOG_PREFIX);
+            rust_log_level = RUST_LOG_TRACE; // enable rust trace log
         }
+    }
+    assets_log_init(rust_log_level, LOG_PREFIX); // setting rust log level
+
     create_folder(EXPOSE_DIR);
     create_folder(WORK_DIR);
     chdir(EXPOSE_DIR);