qlog ffi title and description params

include/quiche.h

@@ -215,7 +215,8 @@ quiche_conn *quiche_conn_new_with_tls(const uint8_t *scid, size_t scid_len,
                                       bool is_server);
 
 // Enables qlog to the specified file descriptor. Unix only.
-void quiche_conn_set_qlog_fd(quiche_conn *conn, int fd);
+void quiche_conn_set_qlog_fd(quiche_conn *conn, int fd, const char * log_title,
+                             const char * log_desc);
 
 // Processes QUIC packets received from the peer.
 ssize_t quiche_conn_recv(quiche_conn *conn, uint8_t *buf, size_t buf_len);

src/ffi.rs

@@ -236,14 +236,20 @@ pub extern fn quiche_config_set_cc_algorithm(
 
 #[no_mangle]
 #[cfg(all(unix, feature = "qlog"))]
-pub extern fn quiche_conn_set_qlog_fd(conn: &mut Connection, fd: c_int) {
+pub extern fn quiche_conn_set_qlog_fd(
+    conn: &mut Connection, fd: c_int, log_title: *const c_char,
+    log_desc: *const c_char,
+) {
     let f = unsafe { std::fs::File::from_raw_fd(fd) };
     let writer = std::io::BufWriter::new(f);
 
+    let title = unsafe { ffi::CStr::from_ptr(log_title).to_str().unwrap() };
+    let description = unsafe { ffi::CStr::from_ptr(log_desc).to_str().unwrap() };
+
     conn.set_qlog(
         std::boxed::Box::new(writer),
-        "quiche-client qlog".to_string(),
-        format!("{} id={}", "quiche-client qlog", conn.trace_id),
+        title.to_string(),
+        format!("{} id={}", description, conn.trace_id),
     );
 }