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-rw-r--r--src/nvim/buffer.c315
1 files changed, 197 insertions, 118 deletions
diff --git a/src/nvim/buffer.c b/src/nvim/buffer.c
index 868e842ecd..1089a2dc3b 100644
--- a/src/nvim/buffer.c
+++ b/src/nvim/buffer.c
@@ -78,6 +78,9 @@ static char *msg_loclist = N_("[Location List]");
static char *msg_qflist = N_("[Quickfix List]");
static char *e_auabort = N_("E855: Autocommands caused command to abort");
+// Number of times free_buffer() was called.
+static int buf_free_count = 0;
+
/*
* Open current buffer, that is: open the memfile and read the file into
* memory.
@@ -91,7 +94,7 @@ open_buffer (
)
{
int retval = OK;
- buf_T *old_curbuf;
+ bufref_T old_curbuf;
long old_tw = curbuf->b_p_tw;
/*
@@ -133,10 +136,10 @@ open_buffer (
return FAIL;
}
- /* The autocommands in readfile() may change the buffer, but only AFTER
- * reading the file. */
- old_curbuf = curbuf;
- modified_was_set = FALSE;
+ // The autocommands in readfile() may change the buffer, but only AFTER
+ // reading the file.
+ set_bufref(&old_curbuf, curbuf);
+ modified_was_set = false;
/* mark cursor position as being invalid */
curwin->w_valid = 0;
@@ -249,11 +252,11 @@ open_buffer (
* The autocommands may have changed the current buffer. Apply the
* modelines to the correct buffer, if it still exists and is loaded.
*/
- if (buf_valid(old_curbuf) && old_curbuf->b_ml.ml_mfp != NULL) {
+ if (bufref_valid(&old_curbuf) && old_curbuf.br_buf->b_ml.ml_mfp != NULL) {
aco_save_T aco;
- /* Go to the buffer that was opened. */
- aucmd_prepbuf(&aco, old_curbuf);
+ // Go to the buffer that was opened.
+ aucmd_prepbuf(&aco, old_curbuf.br_buf);
do_modelines(0);
curbuf->b_flags &= ~(BF_CHECK_RO | BF_NEVERLOADED);
@@ -267,14 +270,42 @@ open_buffer (
return retval;
}
-/// Check that "buf" points to a valid buffer (in the buffer list).
+/// Store "buf" in "bufref" and set the free count.
+///
+/// @param bufref Reference to be used for the buffer.
+/// @param buf The buffer to reference.
+void set_bufref(bufref_T *bufref, buf_T *buf)
+{
+ bufref->br_buf = buf;
+ bufref->br_buf_free_count = buf_free_count;
+}
+
+/// Check if "bufref" points to a valid buffer.
+///
+/// Only goes through the buffer list if buf_free_count changed.
+///
+/// @param bufref Buffer reference to check for.
+bool bufref_valid(bufref_T *bufref)
+{
+ return bufref->br_buf_free_count == buf_free_count
+ ? true
+ : buf_valid(bufref->br_buf);
+}
+
+/// Check that "buf" points to a valid buffer in the buffer list.
+///
+/// Can be slow if there are many buffers, prefer using bufref_valid().
+///
+/// @param buf The buffer to check for.
bool buf_valid(buf_T *buf)
FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
if (buf == NULL) {
return false;
}
- FOR_ALL_BUFFERS(bp) {
+ // Assume that we more often have a recent buffer,
+ // start with the last one.
+ for (buf_T *bp = lastbuf; bp != NULL; bp = bp->b_prev) {
if (bp == buf) {
return true;
}
@@ -363,13 +394,15 @@ void close_buffer(win_T *win, buf_T *buf, int action, int abort_if_last)
win->w_cursor.col, TRUE);
}
+ bufref_T bufref;
+ set_bufref(&bufref, buf);
+
/* When the buffer is no longer in a window, trigger BufWinLeave */
if (buf->b_nwindows == 1) {
buf->b_closing = true;
- apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname, buf->b_fname,
- FALSE, buf);
- if (!buf_valid(buf)) {
- /* Autocommands deleted the buffer. */
+ if (apply_autocmds(EVENT_BUFWINLEAVE, buf->b_fname, buf->b_fname, false,
+ buf) && !bufref_valid(&bufref)) {
+ // Autocommands deleted the buffer.
EMSG(_(e_auabort));
return;
}
@@ -384,10 +417,9 @@ void close_buffer(win_T *win, buf_T *buf, int action, int abort_if_last)
* BufHidden */
if (!unload_buf) {
buf->b_closing = true;
- apply_autocmds(EVENT_BUFHIDDEN, buf->b_fname, buf->b_fname,
- FALSE, buf);
- if (!buf_valid(buf)) {
- /* Autocommands deleted the buffer. */
+ if (apply_autocmds(EVENT_BUFHIDDEN, buf->b_fname, buf->b_fname, false,
+ buf) && !bufref_valid(&bufref)) {
+ // Autocommands deleted the buffer.
EMSG(_(e_auabort));
return;
}
@@ -431,11 +463,14 @@ void close_buffer(win_T *win, buf_T *buf, int action, int abort_if_last)
buf_freeall(buf, (del_buf ? BFA_DEL : 0) + (wipe_buf ? BFA_WIPE : 0));
- /* Autocommands may have deleted the buffer. */
- if (!buf_valid(buf))
+ if (!bufref_valid(&bufref)) {
+ // Autocommands may have deleted the buffer.
return;
- if (aborting()) /* autocmds may abort script processing */
+ }
+ if (aborting()) {
+ // Autocmds may abort script processing.
return;
+ }
/*
* It's possible that autocommands change curbuf to the one being deleted.
@@ -535,22 +570,29 @@ void buf_freeall(buf_T *buf, int flags)
// Make sure the buffer isn't closed by autocommands.
buf->b_closing = true;
- if (buf->b_ml.ml_mfp != NULL) {
- apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname, false, buf);
- if (!buf_valid(buf)) { // autocommands may delete the buffer
- return;
- }
+
+ bufref_T bufref;
+ set_bufref(&bufref, buf);
+
+ if ((buf->b_ml.ml_mfp != NULL)
+ && apply_autocmds(EVENT_BUFUNLOAD, buf->b_fname, buf->b_fname, false, buf)
+ && !bufref_valid(&bufref)) {
+ // Autocommands deleted the buffer.
+ return;
}
- if ((flags & BFA_DEL) && buf->b_p_bl) {
- apply_autocmds(EVENT_BUFDELETE, buf->b_fname, buf->b_fname, FALSE, buf);
- if (!buf_valid(buf)) /* autocommands may delete the buffer */
- return;
+ if ((flags & BFA_DEL)
+ && buf->b_p_bl
+ && apply_autocmds(EVENT_BUFDELETE, buf->b_fname, buf->b_fname, false, buf)
+ && !bufref_valid(&bufref)) {
+ // Autocommands may delete the buffer.
+ return;
}
- if (flags & BFA_WIPE) {
- apply_autocmds(EVENT_BUFWIPEOUT, buf->b_fname, buf->b_fname,
- FALSE, buf);
- if (!buf_valid(buf)) /* autocommands may delete the buffer */
- return;
+ if ((flags & BFA_WIPE)
+ && apply_autocmds(EVENT_BUFWIPEOUT, buf->b_fname, buf->b_fname, false,
+ buf)
+ && !bufref_valid(&bufref)) {
+ // Autocommands may delete the buffer.
+ return;
}
buf->b_closing = false;
@@ -603,7 +645,8 @@ void buf_freeall(buf_T *buf, int flags)
static void free_buffer(buf_T *buf)
{
handle_unregister_buffer(buf);
- free_buffer_stuff(buf, TRUE);
+ buf_free_count++;
+ free_buffer_stuff(buf, true);
unref_var_dict(buf->b_vars);
aubuflocal_remove(buf);
buf_hashtab_remove(buf);
@@ -678,8 +721,9 @@ static void clear_wininfo(buf_T *buf)
void goto_buffer(exarg_T *eap, int start, int dir, int count)
{
(void)do_buffer(*eap->cmd == 's' ? DOBUF_SPLIT : DOBUF_GOTO,
- start, dir, count, eap->forceit);
- buf_T *old_curbuf = curbuf;
+ start, dir, count, eap->forceit);
+ bufref_T old_curbuf;
+ set_bufref(&old_curbuf, curbuf);
swap_exists_action = SEA_DIALOG;
if (swap_exists_action == SEA_QUIT && *eap->cmd == 's') {
@@ -698,18 +742,20 @@ void goto_buffer(exarg_T *eap, int start, int dir, int count)
* new aborting error, interrupt, or uncaught exception. */
leave_cleanup(&cs);
} else {
- handle_swap_exists(old_curbuf);
+ handle_swap_exists(&old_curbuf);
}
}
-/*
- * Handle the situation of swap_exists_action being set.
- * It is allowed for "old_curbuf" to be NULL or invalid.
- */
-void handle_swap_exists(buf_T *old_curbuf)
+/// Handle the situation of swap_exists_action being set.
+///
+/// It is allowed for "old_curbuf" to be NULL or invalid.
+///
+/// @param old_curbuf The buffer to check for.
+void handle_swap_exists(bufref_T *old_curbuf)
{
cleanup_T cs;
long old_tw = curbuf->b_p_tw;
+ buf_T *buf;
if (swap_exists_action == SEA_QUIT) {
/* Reset the error/interrupt/exception state here so that
@@ -722,13 +768,18 @@ void handle_swap_exists(buf_T *old_curbuf)
swap_exists_action = SEA_NONE; // don't want it again
swap_exists_did_quit = true;
close_buffer(curwin, curbuf, DOBUF_UNLOAD, false);
- if (!buf_valid(old_curbuf) || old_curbuf == curbuf) {
- old_curbuf = buflist_new(NULL, NULL, 1L, BLN_CURBUF | BLN_LISTED);
+ if (old_curbuf == NULL
+ || !bufref_valid(old_curbuf)
+ || old_curbuf->br_buf == curbuf) {
+ buf = buflist_new(NULL, NULL, 1L, BLN_CURBUF | BLN_LISTED);
+ } else {
+ buf = old_curbuf->br_buf;
}
- if (old_curbuf != NULL) {
- enter_buffer(old_curbuf);
- if (old_tw != curbuf->b_p_tw)
+ if (buf != NULL) {
+ enter_buffer(buf);
+ if (old_tw != curbuf->b_p_tw) {
check_colorcolumn(curwin);
+ }
}
/* If "old_curbuf" is NULL we are in big trouble here... */
@@ -879,6 +930,9 @@ static int empty_curbuf(int close_others, int forceit, int action)
return FAIL;
}
+ bufref_T bufref;
+ set_bufref(&bufref, buf);
+
if (close_others) {
/* Close any other windows on this buffer, then make it empty. */
close_windows(buf, TRUE);
@@ -888,15 +942,17 @@ static int empty_curbuf(int close_others, int forceit, int action)
retval = do_ecmd(0, NULL, NULL, NULL, ECMD_ONE,
forceit ? ECMD_FORCEIT : 0, curwin);
- /*
- * do_ecmd() may create a new buffer, then we have to delete
- * the old one. But do_ecmd() may have done that already, check
- * if the buffer still exists.
- */
- if (buf != curbuf && buf_valid(buf) && buf->b_nwindows == 0)
- close_buffer(NULL, buf, action, FALSE);
- if (!close_others)
- need_fileinfo = FALSE;
+ // do_ecmd() may create a new buffer, then we have to delete
+ // the old one. But do_ecmd() may have done that already, check
+ // if the buffer still exists.
+ if (buf != curbuf && bufref_valid(&bufref) && buf->b_nwindows == 0) {
+ close_buffer(NULL, buf, action, false);
+ }
+
+ if (!close_others) {
+ need_fileinfo = false;
+ }
+
return retval;
}
/*
@@ -998,6 +1054,8 @@ do_buffer (
*/
if (unload) {
int forward;
+ bufref_T bufref;
+ set_bufref(&bufref, buf);
/* When unloading or deleting a buffer that's already unloaded and
* unlisted: fail silently. */
@@ -1006,15 +1064,16 @@ do_buffer (
if (!forceit && (buf->terminal || bufIsChanged(buf))) {
if ((p_confirm || cmdmod.confirm) && p_write && !buf->terminal) {
- dialog_changed(buf, FALSE);
- if (!buf_valid(buf))
- /* Autocommand deleted buffer, oops! It's not changed
- * now. */
+ dialog_changed(buf, false);
+ if (!bufref_valid(&bufref)) {
+ // Autocommand deleted buffer, oops! It's not changed now.
return FAIL;
- /* If it's still changed fail silently, the dialog already
- * mentioned why it fails. */
- if (bufIsChanged(buf))
+ }
+ // If it's still changed fail silently, the dialog already
+ // mentioned why it fails.
+ if (bufIsChanged(buf)) {
return FAIL;
+ }
} else {
if (buf->terminal) {
EMSG2(_("E89: %s will be killed(add ! to override)"),
@@ -1058,27 +1117,26 @@ do_buffer (
* If the buffer to be deleted is not the current one, delete it here.
*/
if (buf != curbuf) {
- close_windows(buf, FALSE);
- if (buf != curbuf && buf_valid(buf) && buf->b_nwindows <= 0)
- close_buffer(NULL, buf, action, FALSE);
+ close_windows(buf, false);
+ if (buf != curbuf && bufref_valid(&bufref) && buf->b_nwindows <= 0) {
+ close_buffer(NULL, buf, action, false);
+ }
return OK;
}
- /*
- * Deleting the current buffer: Need to find another buffer to go to.
- * There should be another, otherwise it would have been handled
- * above. However, autocommands may have deleted all buffers.
- * First use au_new_curbuf, if it is valid.
- * Then prefer the buffer we most recently visited.
- * Else try to find one that is loaded, after the current buffer,
- * then before the current buffer.
- * Finally use any buffer.
- */
- buf = NULL; /* selected buffer */
- bp = NULL; /* used when no loaded buffer found */
- if (au_new_curbuf != NULL && buf_valid(au_new_curbuf))
- buf = au_new_curbuf;
- else if (curwin->w_jumplistlen > 0) {
+ // Deleting the current buffer: Need to find another buffer to go to.
+ // There should be another, otherwise it would have been handled
+ // above. However, autocommands may have deleted all buffers.
+ // First use au_new_curbuf.br_buf, if it is valid.
+ // Then prefer the buffer we most recently visited.
+ // Else try to find one that is loaded, after the current buffer,
+ // then before the current buffer.
+ // Finally use any buffer.
+ buf = NULL; // Selected buffer.
+ bp = NULL; // Used when no loaded buffer found.
+ if (au_new_curbuf.br_buf != NULL && bufref_valid(&au_new_curbuf)) {
+ buf = au_new_curbuf.br_buf;
+ } else if (curwin->w_jumplistlen > 0) {
int jumpidx;
jumpidx = curwin->w_jumplistidx - 1;
@@ -1183,10 +1241,13 @@ do_buffer (
*/
if (action == DOBUF_GOTO && !can_abandon(curbuf, forceit)) {
if ((p_confirm || cmdmod.confirm) && p_write) {
- dialog_changed(curbuf, FALSE);
- if (!buf_valid(buf))
- /* Autocommand deleted buffer, oops! */
+ bufref_T bufref;
+ set_bufref(&bufref, buf);
+ dialog_changed(curbuf, false);
+ if (!bufref_valid(&bufref)) {
+ // Autocommand deleted buffer, oops!
return FAIL;
+ }
}
if (bufIsChanged(curbuf)) {
EMSG(_(e_nowrtmsg));
@@ -1234,14 +1295,18 @@ void set_curbuf(buf_T *buf, int action)
/* close_windows() or apply_autocmds() may change curbuf */
prevbuf = curbuf;
+ bufref_T bufref;
+ set_bufref(&bufref, prevbuf);
- apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, FALSE, curbuf);
- if (buf_valid(prevbuf) && !aborting()) {
- if (prevbuf == curwin->w_buffer)
+ if (!apply_autocmds(EVENT_BUFLEAVE, NULL, NULL, false, curbuf)
+ || (bufref_valid(&bufref) && !aborting())) {
+ if (prevbuf == curwin->w_buffer) {
reset_synblock(curwin);
- if (unload)
- close_windows(prevbuf, FALSE);
- if (buf_valid(prevbuf) && !aborting()) {
+ }
+ if (unload) {
+ close_windows(prevbuf, false);
+ }
+ if (bufref_valid(&bufref) && !aborting()) {
win_T *previouswin = curwin;
if (prevbuf == curbuf)
u_sync(FALSE);
@@ -1378,6 +1443,8 @@ static int top_file_num = 1; ///< highest file number
/// If (flags & BLN_LISTED) is TRUE, add new buffer to buffer list.
/// If (flags & BLN_DUMMY) is TRUE, don't count it as a real buffer.
/// If (flags & BLN_NEW) is TRUE, don't use an existing buffer.
+/// If (flags & BLN_NOOPT) is TRUE, don't copy options from the current buffer
+/// if the buffer already exists.
/// This is the ONLY way to create a new buffer.
///
/// @param ffname full path of fname or relative
@@ -1408,16 +1475,20 @@ buf_T * buflist_new(char_u *ffname, char_u *sfname, linenr_T lnum, int flags)
&& (buf = buflist_findname_file_id(ffname, &file_id,
file_id_valid)) != NULL) {
xfree(ffname);
- if (lnum != 0)
- buflist_setfpos(buf, curwin, lnum, (colnr_T)0, FALSE);
- /* copy the options now, if 'cpo' doesn't have 's' and not done
- * already */
- buf_copy_options(buf, 0);
+ if (lnum != 0) {
+ buflist_setfpos(buf, curwin, lnum, (colnr_T)0, false);
+ }
+ if ((flags & BLN_NOOPT) == 0) {
+ // Copy the options now, if 'cpo' doesn't have 's' and not done already.
+ buf_copy_options(buf, 0);
+ }
if ((flags & BLN_LISTED) && !buf->b_p_bl) {
- buf->b_p_bl = TRUE;
+ buf->b_p_bl = true;
+ bufref_T bufref;
+ set_bufref(&bufref, buf);
if (!(flags & BLN_DUMMY)) {
- apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf);
- if (!buf_valid(buf)) {
+ if (apply_autocmds(EVENT_BUFADD, NULL, NULL, false, buf)
+ && !bufref_valid(&bufref)) {
return NULL;
}
}
@@ -1551,18 +1622,21 @@ buf_T * buflist_new(char_u *ffname, char_u *sfname, linenr_T lnum, int flags)
// Tricky: these autocommands may change the buffer list. They could also
// split the window with re-using the one empty buffer. This may result in
// unexpectedly losing the empty buffer.
- apply_autocmds(EVENT_BUFNEW, NULL, NULL, FALSE, buf);
- if (!buf_valid(buf)) {
+ bufref_T bufref;
+ set_bufref(&bufref, buf);
+ if (apply_autocmds(EVENT_BUFNEW, NULL, NULL, false, buf)
+ && !bufref_valid(&bufref)) {
return NULL;
}
- if (flags & BLN_LISTED) {
- apply_autocmds(EVENT_BUFADD, NULL, NULL, FALSE, buf);
- if (!buf_valid(buf)) {
- return NULL;
- }
+ if ((flags & BLN_LISTED)
+ && apply_autocmds(EVENT_BUFADD, NULL, NULL, false, buf)
+ && !bufref_valid(&bufref)) {
+ return NULL;
}
- if (aborting()) /* autocmds may abort script processing */
+ if (aborting()) {
+ // Autocmds may abort script processing.
return NULL;
+ }
}
return buf;
@@ -1785,7 +1859,8 @@ buf_T *buflist_findname(char_u *ffname)
static buf_T *buflist_findname_file_id(char_u *ffname, FileID *file_id,
bool file_id_valid)
{
- FOR_ALL_BUFFERS(buf) {
+ // Start at the last buffer, expect to find a match sooner.
+ FOR_ALL_BUFFERS_BACKWARDS(buf) {
if ((buf->b_flags & BF_DUMMY) == 0
&& !otherfile_buf(buf, ffname, file_id, file_id_valid)) {
return buf;
@@ -1859,7 +1934,7 @@ int buflist_findpat(
return -1;
}
- FOR_ALL_BUFFERS(buf) {
+ FOR_ALL_BUFFERS_BACKWARDS(buf) {
if (buf->b_p_bl == find_listed
&& (!diffmode || diff_mode_buf(buf))
&& buflist_match(&regmatch, buf, false) != NULL) {
@@ -4223,12 +4298,13 @@ do_arg_all (
|| !bufIsChanged(buf)) {
/* If the buffer was changed, and we would like to hide it,
* try autowriting. */
- if (!P_HID(buf) && buf->b_nwindows <= 1
- && bufIsChanged(buf)) {
- (void)autowrite(buf, FALSE);
- /* check if autocommands removed the window */
- if (!win_valid(wp) || !buf_valid(buf)) {
- wpnext = firstwin; /* start all over... */
+ if (!P_HID(buf) && buf->b_nwindows <= 1 && bufIsChanged(buf)) {
+ bufref_T bufref;
+ set_bufref(&bufref, buf);
+ (void)autowrite(buf, false);
+ // Check if autocommands removed the window.
+ if (!win_valid(wp) || !bufref_valid(&bufref)) {
+ wpnext = firstwin; // Start all over...
continue;
}
}
@@ -4442,7 +4518,9 @@ void ex_buffer_all(exarg_T *eap)
}
if (wp == NULL && split_ret == OK) {
- /* Split the window and put the buffer in it */
+ bufref_T bufref;
+ set_bufref(&bufref, buf);
+ // Split the window and put the buffer in it.
p_ea_save = p_ea;
p_ea = true; /* use space from all windows */
split_ret = win_split(0, WSP_ROOM | WSP_BELOW);
@@ -4454,7 +4532,8 @@ void ex_buffer_all(exarg_T *eap)
/* Open the buffer in this window. */
swap_exists_action = SEA_DIALOG;
set_curbuf(buf, DOBUF_GOTO);
- if (!buf_valid(buf)) { /* autocommands deleted the buffer!!! */
+ if (!bufref_valid(&bufref)) {
+ // Autocommands deleted the buffer.
swap_exists_action = SEA_NONE;
break;
}
generated by cgit (git 2.34.1) at 2025-05-02 06:43:03 +0000