@@ -290,7 +290,7 @@ static Event *replay_read_event(int checkpoint)
/* Called with replay mutex locked */
void replay_read_events(int checkpoint)
{
- while (replay_data_kind == EVENT_ASYNC) {
+ while (replay_state.data_kind == EVENT_ASYNC) {
Event *event = replay_read_event(checkpoint);
if (!event) {
break;
@@ -16,11 +16,8 @@
#include "qemu/error-report.h"
#include "sysemu/sysemu.h"
-unsigned int replay_data_kind = -1;
-static unsigned int replay_has_unread_data;
-
/* Mutex to protect reading and writing events to the log.
- replay_data_kind and replay_has_unread_data are also protected
+ data_kind and has_unread_data are also protected
by this mutex.
It also protects replay events queue which stores events to be
written or read to the log. */
@@ -150,15 +147,16 @@ void replay_check_error(void)
void replay_fetch_data_kind(void)
{
if (replay_file) {
- if (!replay_has_unread_data) {
- replay_data_kind = replay_get_byte();
- if (replay_data_kind == EVENT_INSTRUCTION) {
+ if (!replay_state.has_unread_data) {
+ replay_state.data_kind = replay_get_byte();
+ if (replay_state.data_kind == EVENT_INSTRUCTION) {
replay_state.instructions_count = replay_get_dword();
}
replay_check_error();
- replay_has_unread_data = 1;
- if (replay_data_kind >= EVENT_COUNT) {
- error_report("Replay: unknown event kind %d", replay_data_kind);
+ replay_state.has_unread_data = 1;
+ if (replay_state.data_kind >= EVENT_COUNT) {
+ error_report("Replay: unknown event kind %d",
+ replay_state.data_kind);
exit(1);
}
}
@@ -167,7 +165,7 @@ void replay_fetch_data_kind(void)
void replay_finish_event(void)
{
- replay_has_unread_data = 0;
+ replay_state.has_unread_data = 0;
replay_fetch_data_kind();
}
@@ -63,11 +63,13 @@ typedef struct ReplayState {
uint64_t current_step;
/*! Number of instructions to be executed before other events happen. */
int instructions_count;
+ /*! Type of the currently executed event. */
+ unsigned int data_kind;
+ /*! Flag which indicates that event is not processed yet. */
+ unsigned int has_unread_data;
} ReplayState;
extern ReplayState replay_state;
-extern unsigned int replay_data_kind;
-
/* File for replay writing */
extern FILE *replay_file;
@@ -99,7 +101,7 @@ void replay_check_error(void);
the next event from the log. */
void replay_finish_event(void);
/*! Reads data type from the file and stores it in the
- replay_data_kind variable. */
+ data_kind variable. */
void replay_fetch_data_kind(void);
/*! Saves queued events (like instructions and sound). */
@@ -31,7 +31,7 @@ int64_t replay_save_clock(ReplayClockKind kind, int64_t clock)
void replay_read_next_clock(ReplayClockKind kind)
{
- unsigned int read_kind = replay_data_kind - EVENT_CLOCK;
+ unsigned int read_kind = replay_state.data_kind - EVENT_CLOCK;
assert(read_kind == kind);
@@ -39,15 +39,15 @@ bool replay_next_event_is(int event)
/* nothing to skip - not all instructions used */
if (replay_state.instructions_count != 0) {
- assert(replay_data_kind == EVENT_INSTRUCTION);
+ assert(replay_state.data_kind == EVENT_INSTRUCTION);
return event == EVENT_INSTRUCTION;
}
while (true) {
- if (event == replay_data_kind) {
+ if (event == replay_state.data_kind) {
res = true;
}
- switch (replay_data_kind) {
+ switch (replay_state.data_kind) {
case EVENT_SHUTDOWN:
replay_finish_event();
qemu_system_shutdown_request();
@@ -86,7 +86,7 @@ void replay_account_executed_instructions(void)
replay_state.instructions_count -= count;
replay_state.current_step += count;
if (replay_state.instructions_count == 0) {
- assert(replay_data_kind == EVENT_INSTRUCTION);
+ assert(replay_state.data_kind == EVENT_INSTRUCTION);
replay_finish_event();
/* Wake up iothread. This is required because
timers will not expire until clock counters
@@ -189,7 +189,7 @@ bool replay_checkpoint(ReplayCheckpoint checkpoint)
if (replay_mode == REPLAY_MODE_PLAY) {
if (replay_next_event_is(EVENT_CHECKPOINT + checkpoint)) {
replay_finish_event();
- } else if (replay_data_kind != EVENT_ASYNC) {
+ } else if (replay_state.data_kind != EVENT_ASYNC) {
res = false;
goto out;
}
@@ -197,7 +197,7 @@ bool replay_checkpoint(ReplayCheckpoint checkpoint)
/* replay_read_events may leave some unread events.
Return false if not all of the events associated with
checkpoint were processed */
- res = replay_data_kind != EVENT_ASYNC;
+ res = replay_state.data_kind != EVENT_ASYNC;
} else if (replay_mode == REPLAY_MODE_RECORD) {
replay_put_event(EVENT_CHECKPOINT + checkpoint);
replay_save_events(checkpoint);
@@ -238,9 +238,10 @@ static void replay_enable(const char *fname, int mode)
replay_filename = g_strdup(fname);
replay_mode = mode;
- replay_data_kind = -1;
+ replay_state.data_kind = -1;
replay_state.instructions_count = 0;
replay_state.current_step = 0;
+ replay_state.has_unread_data = 0;
/* skip file header for RECORD and check it for PLAY */
if (replay_mode == REPLAY_MODE_RECORD) {