>
> On Mon, 2015-11-02 at 11:00 -0500, Frediano Ziglio wrote:
> > >
> > > On Mon, Nov 2, 2015 at 10:55 AM, Frediano Ziglio <
> > > fziglio@xxxxxxxxxx> wrote:
> > > > From: Marc-André Lureau <marcandre.lureau@xxxxxxxxx>
> > > >
> > > > Doing so allows us to remove the extra QXLInstance parameter from
> > > > cursor_item_unref() and makes the code a bit cleaner.
> > > >
> > > > Also add cursor_item_ref().
> > > >
> > > > Signed-off-by: Jonathon Jongsma <jjongsma@xxxxxxxxxx>
> > > > ---
> > > > server/cursor-channel.c | 70
> > > > +++++++++++++++++++++++++++----------------------
> > > > server/cursor-channel.h | 9 ++++---
> > > > 2 files changed, 44 insertions(+), 35 deletions(-)
> > > >
> > > > diff --git a/server/cursor-channel.c b/server/cursor-channel.c
> > > > index eef0121..d145f86 100644
> > > > --- a/server/cursor-channel.c
> > > > +++ b/server/cursor-channel.c
> > > > @@ -25,55 +25,58 @@
> > > > #include "cache_item.tmpl.c"
> > > > #undef CLIENT_CURSOR_CACHE
> > > >
> > > > -static inline CursorItem *alloc_cursor_item(void)
> > > > +CursorItem *cursor_item_new(QXLInstance *qxl, RedCursorCmd *cmd,
> > > > uint32_t
> > > > group_id)
> > > > {
> > > > CursorItem *cursor_item;
> > > >
> > > > + spice_return_val_if_fail(cmd != NULL, NULL);
> > > > +
> > > > cursor_item = g_slice_new0(CursorItem);
> > > > + cursor_item->qxl = qxl;
> > > > cursor_item->refs = 1;
> > > > + cursor_item->group_id = group_id;
> > > > + cursor_item->red_cursor = cmd;
> > > >
> > > > return cursor_item;
> > > > }
> > > >
> > > > -CursorItem *cursor_item_new(RedCursorCmd *cmd, uint32_t
> > > > group_id)
> > > > +CursorItem *cursor_item_ref(CursorItem *item)
> > > > {
> > > > - CursorItem *cursor_item;
> > > > -
> > > > - spice_return_val_if_fail(cmd != NULL, NULL);
> > > > - cursor_item = alloc_cursor_item();
> > > > + spice_return_val_if_fail(item != NULL, NULL);
> > > > + spice_return_val_if_fail(item->refs > 0, NULL);
> > > >
> > > > - cursor_item->group_id = group_id;
> > > > - cursor_item->red_cursor = cmd;
> > > > + item->refs++;
> > > >
> > > > - return cursor_item;
> > > > + return item;
> > > > }
> > > >
> > > > -void cursor_item_unref(QXLInstance *qxl, CursorItem *cursor)
> > > > +void cursor_item_unref(CursorItem *item)
> > > > {
> > > > - if (!--cursor->refs) {
> > > > - QXLReleaseInfoExt release_info_ext;
> > > > - RedCursorCmd *cursor_cmd;
> > > > -
> > > > - cursor_cmd = cursor->red_cursor;
> > > > - release_info_ext.group_id = cursor->group_id;
> > > > - release_info_ext.info = cursor_cmd->release_info;
> > > > - qxl->st->qif->release_resource(qxl, release_info_ext);
> > > > - red_put_cursor_cmd(cursor_cmd);
> > > > - free(cursor_cmd);
> > > > -
> > > > - g_slice_free(CursorItem, cursor);
> > > > - }
> > > > + QXLReleaseInfoExt release_info_ext;
> > > > + RedCursorCmd *cursor_cmd;
> > > > +
> > > > + spice_return_if_fail(item != NULL);
> > > > +
> > > > + if (--item->refs)
> > >
> > > Just a nitpick, I would prefer to have a explicit comparison here:
> > > if
> > > (--items->refs > 0) ...
> > >
> >
> > Why not
> >
> > if (--items->refs != 0) ??
> >
> > I mean, at the end the results should be the same if no errors
> > managing
> > the counters are present. Are you suggesting to change the test to
> > avoid
> > multiple free (hoping memory is still untouched after the first one)
> > ?
> >
> > I start suspecting that sending the patch when there are pending
> > issue to
> > be discussed is not really a good idea.
>
>
> Hmm, what do you mean by this? What pending issues need to be
> discussed?
>
About the lines (spice_warning(refs > 0)) that I proposed to change
in spice_error/spice_critical. I suggested to change, you said you
prefer the warning. Nobody raise to change the "poll" (1-1).
Frediano
>
>
> >
> > > > + return;
> > > > +
> > > > + cursor_cmd = item->red_cursor;
> > > > + release_info_ext.group_id = item->group_id;
> > > > + release_info_ext.info = cursor_cmd->release_info;
> > > > + item->qxl->st->qif->release_resource(item->qxl,
> > > > release_info_ext);
> > > > + red_put_cursor_cmd(cursor_cmd);
> > > > + free(cursor_cmd);
> > > > +
> > > > + g_slice_free(CursorItem, item);
> > > > +
> > > > }
> > > >
> > > > static void cursor_set_item(CursorChannel *cursor, CursorItem
> > > > *item)
> > > > {
> > > > if (cursor->item)
> > > > - cursor_item_unref(red_worker_get_qxl(cursor
> > > > ->common.worker),
> > > > cursor->item);
> > > > -
> > > > - if (item)
> > > > - item->refs++;
> > > > + cursor_item_unref(cursor->item);
> > > >
> > > > - cursor->item = item;
> > > > + cursor->item = item ? cursor_item_ref(item) : NULL;
> > > > }
> > > >
> > > > static PipeItem *new_cursor_pipe_item(RedChannelClient *rcc,
> > > > void *data,
> > > > int num)
> > > > @@ -157,7 +160,7 @@ static void
> > > > put_cursor_pipe_item(CursorChannelClient
> > > > *ccc, CursorPipeItem *pipe_
> > > >
> > > > spice_assert(!pipe_item_is_linked(&pipe_item->base));
> > > >
> > > > - cursor_item_unref(red_worker_get_qxl(ccc->common.worker),
> > > > pipe_item->cursor_item);
> > > > + cursor_item_unref(pipe_item->cursor_item);
> > > > free(pipe_item);
> > > > }
> > > >
> > > > @@ -404,7 +407,11 @@ void
> > > > cursor_channel_process_cmd(CursorChannel *cursor,
> > > > RedCursorCmd *cursor_cmd,
> > > > CursorItem *cursor_item;
> > > > int cursor_show = FALSE;
> > > >
> > > > - cursor_item = cursor_item_new(cursor_cmd, group_id);
> > > > + spice_return_if_fail(cursor);
> > > > + spice_return_if_fail(cursor_cmd);
> > > > +
> > > > + cursor_item =
> > > > cursor_item_new(red_worker_get_qxl(cursor->common.worker),
> > > > + cursor_cmd, group_id);
> > > >
> > > > switch (cursor_cmd->type) {
> > > > case QXL_CURSOR_SET:
> > > > @@ -434,7 +441,8 @@ void cursor_channel_process_cmd(CursorChannel
> > > > *cursor,
> > > > RedCursorCmd *cursor_cmd,
> > > > red_channel_pipes_new_add(&cursor->common.base,
> > > > new_cursor_pipe_item,
> > > > cursor_item);
> > > > }
> > > > - cursor_item_unref(red_worker_get_qxl(cursor->common.worker),
> > > > cursor_item);
> > > > +
> > > > + cursor_item_unref(cursor_item);
> > > > }
> > > >
> > > > void cursor_channel_reset(CursorChannel *cursor)
> > > > diff --git a/server/cursor-channel.h b/server/cursor-channel.h
> > > > index 293cfc1..f20001c 100644
> > > > --- a/server/cursor-channel.h
> > > > +++ b/server/cursor-channel.h
> > > > @@ -33,6 +33,7 @@
> > > > #define CURSOR_CACHE_HASH_KEY(id) ((id) &
> > > > CURSOR_CACHE_HASH_MASK)
> > > >
> > > > typedef struct CursorItem {
> > > > + QXLInstance *qxl;
> > > > uint32_t group_id;
> > > > int refs;
> > > > RedCursorCmd *red_cursor;
> > > > @@ -83,14 +84,14 @@ void cursor_channel_reset
> > > > (CursorChannel *cursor);
> > > > void cursor_channel_process_cmd (CursorChannel
> > > > *cursor,
> > > > RedCursorCmd *cursor_cmd,
> > > > uint32_t
> > > > group_id);
> > > >
> > > > -CursorItem* cursor_item_new (RedCursorCmd
> > > > *cmd,
> > > > uint32_t group_id);
> > > > -void cursor_item_unref (QXLInstance
> > > > *qxl,
> > > > CursorItem *cursor);
> > > > -
> > > > -
> > > > CursorChannelClient* cursor_channel_client_new(CursorChannel
> > > > *cursor,
> > > > RedClient
> > > > *client,
> > > > RedsStream
> > > > *stream,
> > > > int mig_target,
> > > > uint32_t
> > > > *common_caps, int
> > > > num_common_caps,
> > > > uint32_t *caps,
> > > > int
> > > > num_caps);
> > > >
> > > > +CursorItem* cursor_item_new (QXLInstance
> > > > *qxl,
> > > > RedCursorCmd *cmd, uint32_t group_id);
> > > > +CursorItem* cursor_item_ref (CursorItem
> > > > *cursor);
> > > > +void cursor_item_unref (CursorItem
> > > > *cursor);
> > > > +
> > > > #endif /* CURSOR_CHANNEL_H_ */
> > > > --
> > > > 2.4.3
> > > >
> > > > _______________________________________________
> > > > Spice-devel mailing list
> > > > Spice-devel@xxxxxxxxxxxxxxxxxxxxx
> > > > http://lists.freedesktop.org/mailman/listinfo/spice-devel
> > >
> > > ACK!
> > >
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