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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2009-05-29 10:39:06 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2009-05-29 10:39:06 +0200 |
| commit | 4b7db4f2ca232c630e334fa56b1eb89848d5fcc5 (patch) | |
| tree | 55608587f33fc1d6f6a8e40dfdf7fea66c750d7a /libbb/lineedit.c | |
| parent | 171932d7ca62dbb0e0b84a0919e1f3a8a68f03f2 (diff) | |
| download | busybox-4b7db4f2ca232c630e334fa56b1eb89848d5fcc5.tar.gz | |
read_key: drop optimization where we read 3 bytes at once
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb/lineedit.c')
| -rw-r--r-- | libbb/lineedit.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/libbb/lineedit.c b/libbb/lineedit.c index a0b1bcf8e..81f6fdeff 100644 --- a/libbb/lineedit.c +++ b/libbb/lineedit.c @@ -1451,10 +1451,13 @@ static int lineedit_read_key(char *read_key_buffer) pfd.events = POLLIN; do { poll_again: - /* Wait for input. Can't just call read_key, it will return - * at once if stdin is in non-blocking mode. */ - safe_poll(&pfd, 1, -1); - /* note: read_key sets errno to 0 on success: */ + if (read_key_buffer[0] == 0) { + /* Wait for input. Can't just call read_key, + * it returns at once if stdin + * is in non-blocking mode. */ + safe_poll(&pfd, 1, -1); + } + /* Note: read_key sets errno to 0 on success: */ ic = read_key(STDIN_FILENO, read_key_buffer); if (ENABLE_FEATURE_EDITING_ASK_TERMINAL && (int32_t)ic == KEYCODE_CURSOR_POS |