aboutsummaryrefslogtreecommitdiff
path: root/include/exec/replay-core.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/exec/replay-core.h')
-rw-r--r--include/exec/replay-core.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/include/exec/replay-core.h b/include/exec/replay-core.h
new file mode 100644
index 0000000000..244c77acce
--- /dev/null
+++ b/include/exec/replay-core.h
@@ -0,0 +1,80 @@
+/*
+ * QEMU replay core API
+ *
+ * Copyright (c) 2010-2015 Institute for System Programming
+ * of the Russian Academy of Sciences.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef EXEC_REPLAY_H
+#define EXEC_REPLAY_H
+
+#include "qapi/qapi-types-replay.h"
+
+extern ReplayMode replay_mode;
+
+/* Replay process control functions */
+
+/* Enables recording or saving event log with specified parameters */
+void replay_configure(struct QemuOpts *opts);
+/* Initializes timers used for snapshotting and enables events recording */
+void replay_start(void);
+/* Closes replay log file and frees other resources. */
+void replay_finish(void);
+/* Adds replay blocker with the specified error description */
+void replay_add_blocker(const char *feature);
+/* Returns name of the replay log file */
+const char *replay_get_filename(void);
+
+/*
+ * Start making one step in backward direction.
+ * Used by gdbstub for backwards debugging.
+ * Returns true on success.
+ */
+bool replay_reverse_step(void);
+/*
+ * Start searching the last breakpoint/watchpoint.
+ * Used by gdbstub for backwards debugging.
+ * Returns true if the process successfully started.
+ */
+bool replay_reverse_continue(void);
+/*
+ * Returns true if replay module is processing
+ * reverse_continue or reverse_step request
+ */
+bool replay_running_debug(void);
+/* Called in reverse debugging mode to collect breakpoint information */
+void replay_breakpoint(void);
+/* Called when gdb is attached to gdbstub */
+void replay_gdb_attached(void);
+
+/* Interrupts and exceptions */
+
+/* Called by exception handler to write or read exception processing events */
+bool replay_exception(void);
+/*
+ * Used to determine that exception is pending.
+ * Does not proceed to the next event in the log.
+ */
+bool replay_has_exception(void);
+/*
+ * Called by interrupt handlers to write or read interrupt processing events.
+ * Returns true if interrupt should be processed.
+ */
+bool replay_interrupt(void);
+/*
+ * Tries to read interrupt event from the file.
+ * Returns true, when interrupt request is pending.
+ */
+bool replay_has_interrupt(void);
+
+/* Processing data from random generators */
+
+/* Saves the values from the random number generator */
+void replay_save_random(int ret, void *buf, size_t len);
+/* Loads the saved values for the random number generator */
+int replay_read_random(void *buf, size_t len);
+
+#endif