diff options
Diffstat (limited to 'shell/shell_common.c')
| -rw-r--r-- | shell/shell_common.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/shell/shell_common.c b/shell/shell_common.c index bbc22ed34..51c92d60e 100644 --- a/shell/shell_common.c +++ b/shell/shell_common.c @@ -138,7 +138,13 @@ shell_builtin_read(void FAST_FUNC (*setvar)(const char *name, const char *val), old_tty = tty; if (nchars) { tty.c_lflag &= ~ICANON; - tty.c_cc[VMIN] = nchars < 256 ? nchars : 255; + // Setting it to more than 1 breaks poll(): + // it blocks even if there's data. !?? + //tty.c_cc[VMIN] = nchars < 256 ? nchars : 255; + /* reads would block only if < 1 char is available */ + tty.c_cc[VMIN] = 1; + /* no timeout (reads block forever) */ + tty.c_cc[VTIME] = 0; } if (read_flags & BUILTIN_READ_SILENT) { tty.c_lflag &= ~(ECHO | ECHOK | ECHONL); |