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c19d0635aa
This API helps us simplify some of the tooling to iterate through a capture. In particular, we might want to setup a bunch of matches and then just iterate through the items. This can also allow delaying the iteration until the future which might be handy for visualizers which won't want to block the main loop. I'm not jazzed about the 64k buffer created for every cursor due to the SpCaptureReader copy, but it's probably not a big deal in practice until we start doing more exotic things.
56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/* sp-capture-cursor.h
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*
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* Copyright (C) 2016 Christian Hergert <chergert@redhat.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef SP_CAPTURE_CURSOR_H
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#define SP_CAPTURE_CURSOR_H
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#include "sp-capture-types.h"
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G_BEGIN_DECLS
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#define SP_TYPE_CAPTURE_CURSOR (sp_capture_cursor_get_type())
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G_DECLARE_FINAL_TYPE (SpCaptureCursor, sp_capture_cursor, SP, CAPTURE_CURSOR, GObject)
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/**
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* SpCaptureCursorCallback:
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*
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* This is the prototype for callbacks that are called for each frame
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* matching the cursor query.
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*
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* Functions matching this typedef should return %TRUE if they want the
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* the caller to stop iteration of cursor.
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*
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* Returns: %TRUE if iteration should stop, otherwise %FALSE.
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*/
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typedef gboolean (*SpCaptureCursorCallback) (const SpCaptureFrame *frame,
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gpointer user_data);
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SpCaptureCursor *sp_capture_cursor_new (SpCaptureReader *reader);
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void sp_capture_cursor_foreach (SpCaptureCursor *self,
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SpCaptureCursorCallback callback,
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gpointer user_data);
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void sp_capture_cursor_reset (SpCaptureCursor *self);
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void sp_capture_cursor_reverse (SpCaptureCursor *self);
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void sp_capture_cursor_add_condition (SpCaptureCursor *self,
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SpCaptureCondition *condition);
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G_END_DECLS
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#endif /* SP_CAPTURE_CURSOR_H */
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