qemu/monitor.h
Daniel P. Berrange 4860853d60 Add 'query-events' command to QMP to query async events
Sometimes it is neccessary for an application to determine
whether a particular QMP event is available, so they can
decide whether to use compatibility code instead. This
introduces a new 'query-events' command to QMP to do just
that

 { "execute": "query-events" }
 {"return": [{"name": "WAKEUP"},
             {"name": "SUSPEND"},
             {"name": "DEVICE_TRAY_MOVED"},
             {"name": "BLOCK_JOB_CANCELLED"},
             {"name": "BLOCK_JOB_COMPLETED"},
             ...snip...
             {"name": "SHUTDOWN"}]}

* monitor.c: Turn MonitorEvent -> string conversion
  into a lookup from a static table of constant strings.
  Add impl of qmp_query_events monitor command handler
* qapi-schema.json, qmp-commands.hx: Define contract of
  query-events command

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2012-06-04 13:49:35 -03:00

89 lines
2.5 KiB
C

#ifndef MONITOR_H
#define MONITOR_H
#include "qemu-common.h"
#include "qemu-char.h"
#include "qerror.h"
#include "qdict.h"
#include "block.h"
#include "readline.h"
extern Monitor *cur_mon;
extern Monitor *default_mon;
/* flags for monitor_init */
#define MONITOR_IS_DEFAULT 0x01
#define MONITOR_USE_READLINE 0x02
#define MONITOR_USE_CONTROL 0x04
#define MONITOR_USE_PRETTY 0x08
/* flags for monitor commands */
#define MONITOR_CMD_ASYNC 0x0001
/* QMP events */
typedef enum MonitorEvent {
QEVENT_SHUTDOWN,
QEVENT_RESET,
QEVENT_POWERDOWN,
QEVENT_STOP,
QEVENT_RESUME,
QEVENT_VNC_CONNECTED,
QEVENT_VNC_INITIALIZED,
QEVENT_VNC_DISCONNECTED,
QEVENT_BLOCK_IO_ERROR,
QEVENT_RTC_CHANGE,
QEVENT_WATCHDOG,
QEVENT_SPICE_CONNECTED,
QEVENT_SPICE_INITIALIZED,
QEVENT_SPICE_DISCONNECTED,
QEVENT_BLOCK_JOB_COMPLETED,
QEVENT_BLOCK_JOB_CANCELLED,
QEVENT_DEVICE_TRAY_MOVED,
QEVENT_SUSPEND,
QEVENT_WAKEUP,
/* Add to 'monitor_event_names' array in monitor.c when
* defining new events here */
QEVENT_MAX,
} MonitorEvent;
int monitor_cur_is_qmp(void);
void monitor_protocol_event(MonitorEvent event, QObject *data);
void monitor_init(CharDriverState *chr, int flags);
int monitor_suspend(Monitor *mon);
void monitor_resume(Monitor *mon);
int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
BlockDriverCompletionFunc *completion_cb,
void *opaque);
int monitor_read_block_device_key(Monitor *mon, const char *device,
BlockDriverCompletionFunc *completion_cb,
void *opaque);
int monitor_get_fd(Monitor *mon, const char *fdname);
void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
GCC_FMT_ATTR(2, 0);
void monitor_printf(Monitor *mon, const char *fmt, ...) GCC_FMT_ATTR(2, 3);
void monitor_print_filename(Monitor *mon, const char *filename);
void monitor_flush(Monitor *mon);
int monitor_set_cpu(int cpu_index);
int monitor_get_cpu_index(void);
typedef void (MonitorCompletion)(void *opaque, QObject *ret_data);
void monitor_set_error(Monitor *mon, QError *qerror);
void monitor_read_command(Monitor *mon, int show_prompt);
ReadLineState *monitor_get_rs(Monitor *mon);
int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
void *opaque);
int qmp_qom_set(Monitor *mon, const QDict *qdict, QObject **ret);
int qmp_qom_get(Monitor *mon, const QDict *qdict, QObject **ret);
#endif /* !MONITOR_H */