popup and diagnose ui

src/terminal.c

@@ -108,9 +108,41 @@ char *keyToString(int key) {
 
 int editorReadKey() {
   char c;
-  /* read first byte — may be start of UTF-8 or escape */
-  while (read(STDIN_FILENO, &c, 1) != 1)
-    ;
+  int nread;
+
+  while (1) {
+    fd_set fds;
+    FD_ZERO(&fds);
+    FD_SET(STDIN_FILENO, &fds);
+
+    // Also watch the LSP wake pipe if available
+    int max_fd = STDIN_FILENO;
+    if (E.lsp_client && E.lsp_client->wake_pipe[0] > 0) {
+      FD_SET(E.lsp_client->wake_pipe[0], &fds);
+      if (E.lsp_client->wake_pipe[0] > max_fd)
+        max_fd = E.lsp_client->wake_pipe[0];
+    }
+
+    int ready = select(max_fd + 1, &fds, NULL, NULL, NULL);
+    if (ready <= 0)
+      continue;
+
+    // LSP event arrived — drain pipe and trigger a redraw
+    // by returning a special no-op key
+    if (E.lsp_client && FD_ISSET(E.lsp_client->wake_pipe[0], &fds)) {
+      char tmp[16];
+      read(E.lsp_client->wake_pipe[0], tmp, sizeof(tmp));
+      return LSP_WAKE_KEY; // ← special value, see below
+    }
+
+    // Normal keypress
+    if (FD_ISSET(STDIN_FILENO, &fds)) {
+      nread = read(STDIN_FILENO, &c, 1);
+      if (nread == 1)
+        break;
+    }
+  }
+
   appDebug("f : %hhu %ld\r\n", c, 0x200);
 
   if (c == '\x1b') {
@@ -219,19 +251,18 @@ int getWindowSize(int *rows, int *cols) {
       return -1;
     }
     return getCursorPosition(rows, cols);
-  } else {
-    *cols = ws.ws_col;
-    *rows = ws.ws_row;
-    return 0;
   }
+  *cols = ws.ws_col;
+  *rows = ws.ws_row;
+  return 0;
 }
 
 void appDebug(const char *fmt, ...) {
 #ifdef APP_DEBUG
   va_list ap;
-  char message[256];
+  char message[1024];
   va_start(ap, fmt);
-  vsnprintf(message, 256, fmt, ap);
+  vsnprintf(message, 1024, fmt, ap);
   va_end(ap);
   fprintf(stderr, "%s\n", message);
 #endif