/* sysprof-capture-cursor.h
 *
 * Copyright 2016-2019 Christian Hergert <chergert@redhat.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * Subject to the terms and conditions of this license, each copyright holder
 * and contributor hereby grants to those receiving rights under this license
 * a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
 * irrevocable (except for failure to satisfy the conditions of this license)
 * patent license to make, have made, use, offer to sell, sell, import, and
 * otherwise transfer this software, where such license applies only to those
 * patent claims, already acquired or hereafter acquired, licensable by such
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 * (a) their Contribution(s) (the licensed copyrights of copyright holders
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 *     causes such combination to be necessarily infringed. The patent license
 *     shall not apply to any other combinations which include the
 *     Contribution.
 *
 * Except as expressly stated above, no rights or licenses from any copyright
 * holder or contributor is granted under this license, whether expressly, by
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 * DISCLAIMER
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
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 */

#pragma once

#include <stdbool.h>

#include "sysprof-capture-types.h"
#include "sysprof-macros.h"
#include "sysprof-version-macros.h"

SYSPROF_BEGIN_DECLS

/**
 * SysprofCaptureCursorCallback:
 *
 * This is the prototype for callbacks that are called for each frame
 * matching the cursor query.
 *
 * Functions matching this typedef should return %TRUE if they want the
 * the caller to stop iteration of cursor.
 *
 * Returns: %TRUE if iteration should continue, otherwise %FALSE.
 */
typedef bool (*SysprofCaptureCursorCallback) (const SysprofCaptureFrame *frame,
                                              void                      *user_data);

SYSPROF_AVAILABLE_IN_ALL
SysprofCaptureCursor *sysprof_capture_cursor_new           (SysprofCaptureReader         *reader);
SYSPROF_AVAILABLE_IN_ALL
void                  sysprof_capture_cursor_unref         (SysprofCaptureCursor         *self);
SYSPROF_AVAILABLE_IN_ALL
SysprofCaptureCursor *sysprof_capture_cursor_ref           (SysprofCaptureCursor         *self);
SYSPROF_AVAILABLE_IN_ALL
SysprofCaptureReader *sysprof_capture_cursor_get_reader    (SysprofCaptureCursor         *self);
SYSPROF_AVAILABLE_IN_ALL
void                  sysprof_capture_cursor_foreach       (SysprofCaptureCursor         *self,
                                                            SysprofCaptureCursorCallback  callback,
                                                            void                         *user_data);
SYSPROF_AVAILABLE_IN_ALL
void                  sysprof_capture_cursor_reset         (SysprofCaptureCursor         *self);
SYSPROF_AVAILABLE_IN_ALL
void                  sysprof_capture_cursor_reverse       (SysprofCaptureCursor         *self);
SYSPROF_AVAILABLE_IN_ALL
void                  sysprof_capture_cursor_add_condition (SysprofCaptureCursor         *self,
                                                            SysprofCaptureCondition      *condition);

SYSPROF_END_DECLS