| /* vi: set sw=4 ts=4: */ |
| /* |
| * Monitor a pipe with a simple progress display. |
| * |
| * Copyright (C) 2003 by Rob Landley <rob@landley.net>, Joey Hess |
| * |
| * Licensed under GPLv2 or later, see file LICENSE in this source tree. |
| */ |
| |
| //usage:#define pipe_progress_trivial_usage NOUSAGE_STR |
| //usage:#define pipe_progress_full_usage "" |
| |
| #include "libbb.h" |
| |
| #define PIPE_PROGRESS_SIZE 4096 |
| |
| /* Read a block of data from stdin, write it to stdout. |
| * Activity is indicated by a '.' to stderr |
| */ |
| int pipe_progress_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
| int pipe_progress_main(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) |
| { |
| char buf[PIPE_PROGRESS_SIZE]; |
| time_t t = time(NULL); |
| int len; |
| |
| while ((len = safe_read(STDIN_FILENO, buf, PIPE_PROGRESS_SIZE)) > 0) { |
| time_t new_time = time(NULL); |
| if (new_time != t) { |
| t = new_time; |
| bb_putchar_stderr('.'); |
| } |
| full_write(STDOUT_FILENO, buf, len); |
| } |
| |
| bb_putchar_stderr('\n'); |
| |
| return 0; |
| } |