Merge pull request #1712 from tursodatabase/libsql-tracing

add libsql_enable_tracing to the libsql

Author: sivukhin

Cargo.lock

@@ -15,6 +15,8 @@ bytes = "1.5.0"
 lazy_static = "1.4.0"
 tokio = { version = "1.29.1", features = [ "rt-multi-thread" ] }
 hyper-rustls = { version = "0.25", features = ["webpki-roots"]}
+tracing = "0.1.40"
+tracing-subscriber = "0.3.18"
 
 [target.'cfg(not(any(target_os = "ios", target_os = "android")))'.dependencies]
 libsql = { path = "../../libsql", features = ["encryption"] }

bindings/c/Cargo.toml

@@ -61,6 +61,8 @@ typedef struct {
 extern "C" {
 #endif // __cplusplus
 
+int libsql_enable_internal_tracing(void);
+
 int libsql_sync(libsql_database_t db, const char **out_err_msg);
 
 int libsql_sync2(libsql_database_t db, replicated *out_replicated, const char **out_err_msg);

bindings/c/include/libsql.h

@@ -31,6 +31,15 @@ unsafe fn set_err_msg(msg: String, output: *mut *const std::ffi::c_char) {
     }
 }
 
+#[no_mangle]
+pub unsafe extern "C" fn libsql_enable_internal_tracing() -> std::ffi::c_int {
+    if tracing_subscriber::fmt::try_init().is_ok() {
+        1
+    } else {
+        0
+    }
+}
+
 #[no_mangle]
 pub unsafe extern "C" fn libsql_sync(
     db: libsql_database_t,