14b6d44d47
Re-run scripts/clean-includes to apply the previous commit's corrections and updates. Besides redundant qemu/typedefs.h, this only finds a redundant config-host.h include in ui/egl-helpers.c. No idea how that escaped the previous runs. Some manual whitespace trimming around dropped includes squashed in. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
135 lines
4.6 KiB
C
135 lines
4.6 KiB
C
#ifndef REPLAY_H
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#define REPLAY_H
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/*
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* replay.h
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*
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* Copyright (c) 2010-2015 Institute for System Programming
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* of the Russian Academy of Sciences.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#include "qapi-types.h"
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/* replay clock kinds */
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enum ReplayClockKind {
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/* host_clock */
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REPLAY_CLOCK_HOST,
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/* virtual_rt_clock */
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REPLAY_CLOCK_VIRTUAL_RT,
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REPLAY_CLOCK_COUNT
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};
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typedef enum ReplayClockKind ReplayClockKind;
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/* IDs of the checkpoints */
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enum ReplayCheckpoint {
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CHECKPOINT_CLOCK_WARP_START,
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CHECKPOINT_CLOCK_WARP_ACCOUNT,
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CHECKPOINT_RESET_REQUESTED,
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CHECKPOINT_SUSPEND_REQUESTED,
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CHECKPOINT_CLOCK_VIRTUAL,
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CHECKPOINT_CLOCK_HOST,
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CHECKPOINT_CLOCK_VIRTUAL_RT,
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CHECKPOINT_INIT,
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CHECKPOINT_RESET,
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CHECKPOINT_COUNT
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};
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typedef enum ReplayCheckpoint ReplayCheckpoint;
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extern ReplayMode replay_mode;
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/* Replay process control functions */
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/*! Enables recording or saving event log with specified parameters */
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void replay_configure(struct QemuOpts *opts);
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/*! Initializes timers used for snapshotting and enables events recording */
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void replay_start(void);
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/*! Closes replay log file and frees other resources. */
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void replay_finish(void);
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/*! Adds replay blocker with the specified error description */
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void replay_add_blocker(Error *reason);
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/* Processing the instructions */
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/*! Returns number of executed instructions. */
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uint64_t replay_get_current_step(void);
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/*! Returns number of instructions to execute in replay mode. */
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int replay_get_instructions(void);
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/*! Updates instructions counter in replay mode. */
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void replay_account_executed_instructions(void);
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/* Interrupts and exceptions */
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/*! Called by exception handler to write or read
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exception processing events. */
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bool replay_exception(void);
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/*! Used to determine that exception is pending.
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Does not proceed to the next event in the log. */
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bool replay_has_exception(void);
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/*! Called by interrupt handlers to write or read
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interrupt processing events.
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\return true if interrupt should be processed */
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bool replay_interrupt(void);
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/*! Tries to read interrupt event from the file.
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Returns true, when interrupt request is pending */
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bool replay_has_interrupt(void);
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/* Processing clocks and other time sources */
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/*! Save the specified clock */
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int64_t replay_save_clock(ReplayClockKind kind, int64_t clock);
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/*! Read the specified clock from the log or return cached data */
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int64_t replay_read_clock(ReplayClockKind kind);
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/*! Saves or reads the clock depending on the current replay mode. */
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#define REPLAY_CLOCK(clock, value) \
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(replay_mode == REPLAY_MODE_PLAY ? replay_read_clock((clock)) \
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: replay_mode == REPLAY_MODE_RECORD \
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? replay_save_clock((clock), (value)) \
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: (value))
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/* Events */
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/*! Called when qemu shutdown is requested. */
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void replay_shutdown_request(void);
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/*! Should be called at check points in the execution.
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These check points are skipped, if they were not met.
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Saves checkpoint in the SAVE mode and validates in the PLAY mode.
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Returns 0 in PLAY mode if checkpoint was not found.
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Returns 1 in all other cases. */
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bool replay_checkpoint(ReplayCheckpoint checkpoint);
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/* Asynchronous events queue */
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/*! Disables storing events in the queue */
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void replay_disable_events(void);
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/*! Returns true when saving events is enabled */
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bool replay_events_enabled(void);
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/*! Adds bottom half event to the queue */
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void replay_bh_schedule_event(QEMUBH *bh);
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/*! Adds input event to the queue */
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void replay_input_event(QemuConsole *src, InputEvent *evt);
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/*! Adds input sync event to the queue */
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void replay_input_sync_event(void);
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/* Character device */
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/*! Registers char driver to save it's events */
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void replay_register_char_driver(struct CharDriverState *chr);
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/*! Saves write to char device event to the log */
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void replay_chr_be_write(struct CharDriverState *s, uint8_t *buf, int len);
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/*! Writes char write return value to the replay log. */
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void replay_char_write_event_save(int res, int offset);
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/*! Reads char write return value from the replay log. */
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void replay_char_write_event_load(int *res, int *offset);
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/*! Reads information about read_all character event. */
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int replay_char_read_all_load(uint8_t *buf);
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/*! Writes character read_all error code into the replay log. */
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void replay_char_read_all_save_error(int res);
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/*! Writes character read_all execution result into the replay log. */
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void replay_char_read_all_save_buf(uint8_t *buf, int offset);
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#endif
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