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/*
* Copyright (c) 2017-2025, Intel Corporation
* SPDX-License-Identifier: BSD-3-Clause
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef PT_SB_SESSION_H
#define PT_SB_SESSION_H
#include "libipt-sb.h"
struct pt_image_section_cache;
struct pt_image;
struct pt_sb_context;
struct pt_sb_decoder;
struct pt_sb_session {
/* The image section cache to use for new image sections.
*
* This allows sharing image sections across contexts.
*/
struct pt_image_section_cache *iscache;
/* A linear list of contexts in no particular order. */
struct pt_sb_context *contexts;
/* The kernel memory image.
*
* Just like process images, the kernel image may change over time. It
* is used to populate new process images.
*
* This assumes that the full kernel is mapped into every process.
*/
struct pt_image *kernel;
/* A list of sideband decoders ordered by their @tsc (ascending). */
struct pt_sb_decoder *decoders;
/* A list of newly added sideband decoders in no particular order.
*
* Use pt_sb_init_decoders() to fetch the first record and move them to
* @decoders.
*/
struct pt_sb_decoder *waiting;
/* A list of retired sideband decoders in no particular order.
*
* They ran out of trace but might still have a postponed effect
* pending. We present events to them until @apply() returns -pte_eos.
*/
struct pt_sb_decoder *retired;
/* A list of removed sideband decoders in no particular order.
*
* They wait for their destruction when the session is destroyed.
*/
struct pt_sb_decoder *removed;
/* An optional callback function to be called on sideband decode errors
* and warnings.
*/
pt_sb_error_notifier_t *notify_error;
/* The private data for the error notifier. */
void *priv_error;
/* An optional callback function to be called on context switches. */
pt_sb_ctx_switch_notifier_t *notify_switch_to;
/* The private data for the context switch notifier. */
void *priv_switch_to;
};
extern int pt_sb_error(const struct pt_sb_session *session, int errcode,
const char *filename, uint64_t offset);
#endif /* PT_SB_SESSION_H */
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