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+To: vim_dev@googlegroups.com
+Subject: Patch 7.4.004
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.4.004
+Problem: When closing a window fails ":bwipe" may hang.
+Solution: Let win_close() return FAIL and break out of the loop.
+Files: src/window.c, src/proto/window.pro, src/buffer.c
+
+
+*** ../vim-7.4.003/src/window.c 2013-07-24 17:38:29.000000000 +0200
+--- src/window.c 2013-08-14 16:52:44.000000000 +0200
+***************
+*** 2172,2179 ****
+ * If "free_buf" is TRUE related buffer may be unloaded.
+ *
+ * Called by :quit, :close, :xit, :wq and findtag().
+ */
+! void
+ win_close(win, free_buf)
+ win_T *win;
+ int free_buf;
+--- 2172,2180 ----
+ * If "free_buf" is TRUE related buffer may be unloaded.
+ *
+ * Called by :quit, :close, :xit, :wq and findtag().
++ * Returns FAIL when the window was not closed.
+ */
+! int
+ win_close(win, free_buf)
+ win_T *win;
+ int free_buf;
+***************
+*** 2190,2210 ****
+ if (last_window())
+ {
+ EMSG(_("E444: Cannot close last window"));
+! return;
+ }
+
+ #ifdef FEAT_AUTOCMD
+ if (win->w_closing || (win->w_buffer != NULL && win->w_buffer->b_closing))
+! return; /* window is already being closed */
+ if (win == aucmd_win)
+ {
+ EMSG(_("E813: Cannot close autocmd window"));
+! return;
+ }
+ if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window())
+ {
+ EMSG(_("E814: Cannot close window, only autocmd window would remain"));
+! return;
+ }
+ #endif
+
+--- 2191,2211 ----
+ if (last_window())
+ {
+ EMSG(_("E444: Cannot close last window"));
+! return FAIL;
+ }
+
+ #ifdef FEAT_AUTOCMD
+ if (win->w_closing || (win->w_buffer != NULL && win->w_buffer->b_closing))
+! return FAIL; /* window is already being closed */
+ if (win == aucmd_win)
+ {
+ EMSG(_("E813: Cannot close autocmd window"));
+! return FAIL;
+ }
+ if ((firstwin == aucmd_win || lastwin == aucmd_win) && one_window())
+ {
+ EMSG(_("E814: Cannot close window, only autocmd window would remain"));
+! return FAIL;
+ }
+ #endif
+
+***************
+*** 2212,2218 ****
+ * and then close the window and the tab page to avoid that curwin and
+ * curtab are invalid while we are freeing memory. */
+ if (close_last_window_tabpage(win, free_buf, prev_curtab))
+! return;
+
+ /* When closing the help window, try restoring a snapshot after closing
+ * the window. Otherwise clear the snapshot, it's now invalid. */
+--- 2213,2219 ----
+ * and then close the window and the tab page to avoid that curwin and
+ * curtab are invalid while we are freeing memory. */
+ if (close_last_window_tabpage(win, free_buf, prev_curtab))
+! return FAIL;
+
+ /* When closing the help window, try restoring a snapshot after closing
+ * the window. Otherwise clear the snapshot, it's now invalid. */
+***************
+*** 2240,2261 ****
+ win->w_closing = TRUE;
+ apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf);
+ if (!win_valid(win))
+! return;
+ win->w_closing = FALSE;
+ if (last_window())
+! return;
+ }
+ win->w_closing = TRUE;
+ apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf);
+ if (!win_valid(win))
+! return;
+ win->w_closing = FALSE;
+ if (last_window())
+! return;
+ # ifdef FEAT_EVAL
+ /* autocmds may abort script processing */
+ if (aborting())
+! return;
+ # endif
+ }
+ #endif
+--- 2241,2262 ----
+ win->w_closing = TRUE;
+ apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf);
+ if (!win_valid(win))
+! return FAIL;
+ win->w_closing = FALSE;
+ if (last_window())
+! return FAIL;
+ }
+ win->w_closing = TRUE;
+ apply_autocmds(EVENT_WINLEAVE, NULL, NULL, FALSE, curbuf);
+ if (!win_valid(win))
+! return FAIL;
+ win->w_closing = FALSE;
+ if (last_window())
+! return FAIL;
+ # ifdef FEAT_EVAL
+ /* autocmds may abort script processing */
+ if (aborting())
+! return FAIL;
+ # endif
+ }
+ #endif
+***************
+*** 2303,2309 ****
+ * other window or moved to another tab page. */
+ else if (!win_valid(win) || last_window() || curtab != prev_curtab
+ || close_last_window_tabpage(win, free_buf, prev_curtab))
+! return;
+
+ /* Free the memory used for the window and get the window that received
+ * the screen space. */
+--- 2304,2310 ----
+ * other window or moved to another tab page. */
+ else if (!win_valid(win) || last_window() || curtab != prev_curtab
+ || close_last_window_tabpage(win, free_buf, prev_curtab))
+! return FAIL;
+
+ /* Free the memory used for the window and get the window that received
+ * the screen space. */
+***************
+*** 2383,2388 ****
+--- 2384,2390 ----
+ #endif
+
+ redraw_all_later(NOT_VALID);
++ return OK;
+ }
+
+ /*
+*** ../vim-7.4.003/src/proto/window.pro 2013-08-10 13:37:30.000000000 +0200
+--- src/proto/window.pro 2013-08-14 16:52:50.000000000 +0200
+***************
+*** 9,15 ****
+ void win_equal __ARGS((win_T *next_curwin, int current, int dir));
+ void close_windows __ARGS((buf_T *buf, int keep_curwin));
+ int one_window __ARGS((void));
+! void win_close __ARGS((win_T *win, int free_buf));
+ void win_close_othertab __ARGS((win_T *win, int free_buf, tabpage_T *tp));
+ void win_free_all __ARGS((void));
+ win_T *winframe_remove __ARGS((win_T *win, int *dirp, tabpage_T *tp));
+--- 9,15 ----
+ void win_equal __ARGS((win_T *next_curwin, int current, int dir));
+ void close_windows __ARGS((buf_T *buf, int keep_curwin));
+ int one_window __ARGS((void));
+! int win_close __ARGS((win_T *win, int free_buf));
+ void win_close_othertab __ARGS((win_T *win, int free_buf, tabpage_T *tp));
+ void win_free_all __ARGS((void));
+ win_T *winframe_remove __ARGS((win_T *win, int *dirp, tabpage_T *tp));
+*** ../vim-7.4.003/src/buffer.c 2013-07-17 16:39:00.000000000 +0200
+--- src/buffer.c 2013-08-14 16:54:34.000000000 +0200
+***************
+*** 1186,1192 ****
+ && !(curwin->w_closing || curwin->w_buffer->b_closing)
+ # endif
+ && (firstwin != lastwin || first_tabpage->tp_next != NULL))
+! win_close(curwin, FALSE);
+ #endif
+
+ /*
+--- 1186,1195 ----
+ && !(curwin->w_closing || curwin->w_buffer->b_closing)
+ # endif
+ && (firstwin != lastwin || first_tabpage->tp_next != NULL))
+! {
+! if (win_close(curwin, FALSE) == FAIL)
+! break;
+! }
+ #endif
+
+ /*
+*** ../vim-7.4.003/src/version.c 2013-08-14 14:18:37.000000000 +0200
+--- src/version.c 2013-08-14 17:10:23.000000000 +0200
+***************
+*** 729,730 ****
+--- 729,732 ----
+ { /* Add new patch number below this line */
++ /**/
++ 4,
+ /**/
+
+--
+From "know your smileys":
+ *<|:-) Santa Claus (Ho Ho Ho)
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
+/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\ an exciting new programming language -- http://www.Zimbu.org ///
+ \\\ help me help AIDS victims -- http://ICCF-Holland.org ///
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