165 lines
4.5 KiB
Plaintext
165 lines
4.5 KiB
Plaintext
To: vim_dev@googlegroups.com
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Subject: Patch 7.4.251
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Fcc: outbox
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From: Bram Moolenaar <Bram@moolenaar.net>
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Mime-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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------------
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Patch 7.4.251
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Problem: Crash when BufAdd autocommand wipes out the buffer.
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Solution: Check for buffer to still be valid. Postpone freeing the buffer
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structure. (Hirohito Higashi)
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Files: src/buffer.c, src/ex_cmds.c, src/fileio.c, src/globals.h
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*** ../vim-7.4.250/src/buffer.c 2014-03-23 15:12:29.907264336 +0100
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--- src/buffer.c 2014-04-06 19:55:53.563350929 +0200
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***************
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*** 676,683 ****
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#endif
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#ifdef FEAT_AUTOCMD
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aubuflocal_remove(buf);
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#endif
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! vim_free(buf);
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}
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/*
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--- 676,691 ----
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#endif
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#ifdef FEAT_AUTOCMD
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aubuflocal_remove(buf);
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+ if (autocmd_busy)
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+ {
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+ /* Do not free the buffer structure while autocommands are executing,
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+ * it's still needed. Free it when autocmd_busy is reset. */
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+ buf->b_next = au_pending_free_buf;
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+ au_pending_free_buf = buf;
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+ }
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+ else
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#endif
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! vim_free(buf);
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}
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/*
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***************
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*** 1681,1687 ****
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--- 1689,1699 ----
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buf->b_p_bl = TRUE;
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#ifdef FEAT_AUTOCMD
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if (!(flags & BLN_DUMMY))
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+ {
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apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf);
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+ if (!buf_valid(buf))
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+ return NULL;
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+ }
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#endif
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}
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return buf;
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***************
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*** 1857,1864 ****
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--- 1869,1882 ----
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if (!(flags & BLN_DUMMY))
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{
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apply_autocmds(EVENT_BUFNEW, NULL, NULL, FALSE, buf);
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+ if (!buf_valid(buf))
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+ return NULL;
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if (flags & BLN_LISTED)
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+ {
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apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf);
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+ if (!buf_valid(buf))
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+ return NULL;
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+ }
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# ifdef FEAT_EVAL
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if (aborting()) /* autocmds may abort script processing */
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return NULL;
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*** ../vim-7.4.250/src/ex_cmds.c 2014-04-04 19:00:46.351940169 +0200
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--- src/ex_cmds.c 2014-04-06 20:41:37.899356924 +0200
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***************
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*** 3343,3348 ****
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--- 3343,3354 ----
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#endif
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buf = buflist_new(ffname, sfname, 0L,
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BLN_CURBUF | ((flags & ECMD_SET_HELP) ? 0 : BLN_LISTED));
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+ #ifdef FEAT_AUTOCMD
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+ /* autocommands may change curwin and curbuf */
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+ if (oldwin != NULL)
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+ oldwin = curwin;
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+ old_curbuf = curbuf;
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+ #endif
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}
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if (buf == NULL)
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goto theend;
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*** ../vim-7.4.250/src/fileio.c 2014-04-02 14:05:33.999887839 +0200
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--- src/fileio.c 2014-04-06 20:34:24.063355976 +0200
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***************
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*** 9548,9560 ****
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/*
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* When stopping to execute autocommands, restore the search patterns and
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! * the redo buffer.
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*/
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if (!autocmd_busy)
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{
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restore_search_patterns();
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restoreRedobuff();
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did_filetype = FALSE;
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}
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/*
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--- 9548,9566 ----
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/*
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* When stopping to execute autocommands, restore the search patterns and
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! * the redo buffer. Free buffers in the au_pending_free_buf list.
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*/
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if (!autocmd_busy)
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{
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restore_search_patterns();
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restoreRedobuff();
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did_filetype = FALSE;
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+ while (au_pending_free_buf != NULL)
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+ {
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+ buf_T *b = au_pending_free_buf->b_next;
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+ vim_free(au_pending_free_buf);
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+ au_pending_free_buf = b;
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+ }
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}
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/*
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*** ../vim-7.4.250/src/globals.h 2014-03-23 15:12:29.943264337 +0100
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--- src/globals.h 2014-04-06 20:32:58.339355789 +0200
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***************
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*** 386,391 ****
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--- 386,396 ----
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/* When deleting the current buffer, another one must be loaded. If we know
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* which one is preferred, au_new_curbuf is set to it */
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EXTERN buf_T *au_new_curbuf INIT(= NULL);
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+
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+ /* When deleting the buffer and autocmd_busy is TRUE, do not free the buffer
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+ * but link it in the list starting with au_pending_free_buf, using b_next.
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+ * Free the buffer when autocmd_busy is set to FALSE. */
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+ EXTERN buf_T *au_pending_free_buf INIT(= NULL);
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#endif
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#ifdef FEAT_MOUSE
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*** ../vim-7.4.250/src/version.c 2014-04-05 21:59:35.939178415 +0200
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--- src/version.c 2014-04-06 19:52:46.887350521 +0200
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***************
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*** 736,737 ****
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--- 736,739 ----
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{ /* Add new patch number below this line */
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+ /**/
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+ 251,
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/**/
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--
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hundred-and-one symptoms of being an internet addict:
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37. You start looking for hot HTML addresses in public restrooms.
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/// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
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/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
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\\\ an exciting new programming language -- http://www.Zimbu.org ///
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\\\ help me help AIDS victims -- http://ICCF-Holland.org ///
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