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-rw-r--r--lib/ext2fs/progress.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/lib/ext2fs/progress.c b/lib/ext2fs/progress.c
new file mode 100644
index 0000000..fe4292f
--- /dev/null
+++ b/lib/ext2fs/progress.c
@@ -0,0 +1,103 @@
+/*
+ * progress.c - Numeric progress meter
+ *
+ * Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+ * 2003, 2004, 2005 by Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * This file may be redistributed under the terms of the GNU Public
+ * License.
+ * %End-Header%
+ */
+
+#include "config.h"
+#include "ext2fs.h"
+#include "ext2fsP.h"
+
+#include <time.h>
+
+static char spaces[80], backspaces[80];
+static time_t last_update;
+
+struct ext2fs_progress_ops ext2fs_numeric_progress_ops = {
+ .init = ext2fs_numeric_progress_init,
+ .update = ext2fs_numeric_progress_update,
+ .close = ext2fs_numeric_progress_close,
+};
+
+static int int_log10(unsigned int arg)
+{
+ int l;
+
+ for (l=0; arg ; l++)
+ arg = arg / 10;
+ return l;
+}
+
+void ext2fs_numeric_progress_init(ext2_filsys fs,
+ struct ext2fs_numeric_progress_struct * progress,
+ const char *label, __u64 max)
+{
+ /*
+ * The PRINT_PROGRESS flag turns on or off ALL
+ * progress-related messages, whereas the SKIP_PROGRESS
+ * environment variable prints the start and end messages but
+ * not the numeric countdown in the middle.
+ */
+ if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
+ return;
+
+ memset(spaces, ' ', sizeof(spaces)-1);
+ spaces[sizeof(spaces)-1] = 0;
+ memset(backspaces, '\b', sizeof(backspaces)-1);
+ backspaces[sizeof(backspaces)-1] = 0;
+
+ memset(progress, 0, sizeof(*progress));
+ if (getenv("E2FSPROGS_SKIP_PROGRESS"))
+ progress->skip_progress++;
+
+
+ /*
+ * Figure out how many digits we need
+ */
+ progress->max = max;
+ progress->log_max = int_log10(max);
+
+ if (label) {
+ fputs(label, stdout);
+ fflush(stdout);
+ }
+ last_update = 0;
+}
+
+void ext2fs_numeric_progress_update(ext2_filsys fs,
+ struct ext2fs_numeric_progress_struct * progress,
+ __u64 val)
+{
+ time_t now;
+
+ if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
+ return;
+ if (progress->skip_progress)
+ return;
+ now = time(0);
+ if (now == last_update)
+ return;
+ last_update = now;
+
+ printf("%*llu/%*llu", progress->log_max, (unsigned long long) val,
+ progress->log_max, (unsigned long long) progress->max);
+ fprintf(stdout, "%.*s", (2*progress->log_max)+1, backspaces);
+}
+
+void ext2fs_numeric_progress_close(ext2_filsys fs,
+ struct ext2fs_numeric_progress_struct * progress,
+ const char *message)
+{
+ if (!(fs->flags & EXT2_FLAG_PRINT_PROGRESS))
+ return;
+ fprintf(stdout, "%.*s", (2*progress->log_max)+1, spaces);
+ fprintf(stdout, "%.*s", (2*progress->log_max)+1, backspaces);
+ if (message)
+ fputs(message, stdout);
+}