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efficiency change to command hashing; fix pointer aliasing problem with readline history-search-backward

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This commit is contained in:
Chet Ramey
2022-03-01 09:32:15 -05:00
parent e7a56619a2
commit 6c4a9a5cb7
12 changed files with 166 additions and 94 deletions
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lib/readline/misc.c
+9 -1
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@@ -50,6 +50,7 @@
#include "history.h"
#include "rlprivate.h"
#include "histlib.h"
#include "rlshell.h"
#include "xmalloc.h"
@@ -381,6 +382,8 @@ rl_maybe_save_line (void)
int
_rl_free_saved_history_line (void)
{
UNDO_LIST *orig;
if (_rl_saved_line_for_history)
{
if (rl_undo_list && rl_undo_list == (UNDO_LIST *)_rl_saved_line_for_history->data)
@@ -390,7 +393,12 @@ _rl_free_saved_history_line (void)
callers that know this is _rl_saved_line_for_history can know that
it's an undo list. */
if (_rl_saved_line_for_history->data)
_rl_free_undo_list ((UNDO_LIST *)_rl_saved_line_for_history->data);
{
orig = rl_undo_list;
rl_undo_list = _rl_saved_line_for_history->data;
rl_free_undo_list ();
rl_undo_list = orig;
}
_rl_free_history_entry (_rl_saved_line_for_history);
_rl_saved_line_for_history = (HIST_ENTRY *)NULL;
}