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ash,hush: optional support for $HISTFILESIZE.

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Based on patch from Alexey Fomenko (ext-alexey.fomenko AT nokia.com)

function                                             old     new   delta
size_from_HISTFILESIZE                                 -      44     +44
hush_main                                            998    1025     +27
ash_main                                            1348    1374     +26
read_line_input                                     3361    3372     +11
new_line_input_t                                      17      24      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2011-03-31 13:16:52 +02:00
parent a439fa93f6
commit 2c4de5b045
6 changed files with 55 additions and 21 deletions
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4
include/libbb.h
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@@ -1373,8 +1373,9 @@ void read_key_ungets(char *buffer, const char *str, unsigned len) FAST_FUNC;
#if ENABLE_FEATURE_EDITING
/* It's NOT just ENABLEd or disabled. It's a number: */
# ifdef CONFIG_FEATURE_EDITING_HISTORY
# if defined CONFIG_FEATURE_EDITING_HISTORY && CONFIG_FEATURE_EDITING_HISTORY > 0
# define MAX_HISTORY (CONFIG_FEATURE_EDITING_HISTORY + 0)
unsigned size_from_HISTFILESIZE(const char *hp);
# else
# define MAX_HISTORY 0
# endif
@@ -1384,6 +1385,7 @@ typedef struct line_input_t {
# if MAX_HISTORY
int cnt_history;
int cur_history;
int max_history; /* must never be <= 0 */
# if ENABLE_FEATURE_EDITING_SAVEHISTORY
unsigned cnt_history_in_file;
const char *hist_file;