Ticket #2290: mc-4.8.10-refresh-size+time.patch

src/filemanager/find.c

@@ -149 +149 @@
 static gboolean is_start = FALSE;       /* Status of the start/stop toggle button */
 static char *old_dir = NULL;
 
+#define MAX_REFRESH_INTERVAL  50000000     /* 50 ms */
+#define MIN_REFRESH_FILE_SIZE (256 * 1024) /* 256 KB */
+static struct timespec last_refresh;
+
 /* Where did we stop */
 static gboolean resuming;
 static int last_line;
@@ -978 +982 @@
     int file_fd;
     gboolean ret_val = FALSE;
     vfs_path_t *vpath;
+    struct timespec tv;
+    time_t seconds;
+    long nanoseconds;
+    gboolean status_updated = FALSE;
 
     vpath = vfs_path_build_filename (directory, filename, (char *) NULL);
 
@@ -993 +1001 @@
     if (file_fd == -1)
         return FALSE;
 
-    g_snprintf (buffer, sizeof (buffer), _("Grepping in %s"), filename);
-    status_update (str_trunc (buffer, WIDGET (h)->cols - 8));
+    /* get time elapsed from last refresh */
+    if (-1 == clock_gettime(CLOCK_MONOTONIC, &tv)) {
+        tv.tv_sec = 0;
+        tv.tv_nsec = 0;
+        last_refresh = tv;
+    }
+    seconds = tv.tv_sec - last_refresh.tv_sec;
+    nanoseconds = tv.tv_nsec - last_refresh.tv_nsec;
+    if (nanoseconds < 0) {
+        seconds -= 1;
+        nanoseconds += 1000000000;
+    }
+
+    if (s.st_size >= MIN_REFRESH_FILE_SIZE ||
+        seconds > 0 ||
+        nanoseconds > MAX_REFRESH_INTERVAL)
+    {
+        g_snprintf (buffer, sizeof (buffer), _("Grepping in %s"), filename);
+        status_update (str_trunc (buffer, WIDGET (h)->cols - 8));
 
-    mc_refresh ();
+        mc_refresh ();
+        last_refresh = tv;
+        status_updated = TRUE;
+    }
 
     tty_enable_interrupt_key ();
     tty_got_interrupt ();
@@ -1063 +1091 @@
                 && mc_search_run (search_content_handle,
                                   (const void *) strbuf, 0, i, &found_len))
             {
+                if (status_updated == FALSE) {
+                    /* if we add results for a file, we have to ensure that
+                       name of this file is shown in status bar */
+                    g_snprintf (result, sizeof (result), _("Grepping in %s"), filename);
+                    status_update (str_trunc (result, WIDGET (h)->cols - 8));
+                    mc_refresh ();
+                    last_refresh = tv;
+                    status_updated = TRUE;
+                }
+
                 g_snprintf (result, sizeof (result), "%d:%s", line, filename);
                 find_add_match (directory, result);
                 found = TRUE;
@@ -1804 +1842 @@
         if (pattern[0] == '\0')
             break;              /* nothing search */
 
+        last_refresh.tv_sec = 0;
+        last_refresh.tv_nsec = 0;
+
         dirname = filename = NULL;
         is_start = FALSE;
         clock_gettime(CLOCK_MONOTONIC, &begin);