qemu-patch-raspberry4/qga/service-win32.h
Bishara AbuHattoum b70d6afe4d qga-win: changing --retry-path option behavior
Currently whenever the qemu-ga's service doesn't find the virtio-serial
the run_agent() loops in a QGA_RETRY_INTERVAL (default 5 seconds)
intervals and try to restart the qemu-ga which causes a synchronous loop.
Changed to wait and listen for the serial events by registering for
notifications a proper serial event handler that deals with events:
  DBT_DEVICEARRIVAL        indicates that the device has been inserted and
                           is available
  DBT_DEVICEREMOVECOMPLETE indicates that the devive has been removed
Which allow us to determine when the channel path is available for the
qemu-ga to restart.

Signed-off-by: Bishara AbuHattoum <bishara@daynix.com>
Signed-off-by: Sameeh Jubran <sameeh@daynix.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2018-10-31 09:04:20 -05:00

37 lines
1 KiB
C

/*
* QEMU Guest Agent helpers for win32 service management
*
* Copyright IBM Corp. 2012
*
* Authors:
* Gal Hammer <ghammer@redhat.com>
* Michael Roth <mdroth@linux.vnet.ibm.com>
*
* 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 QGA_SERVICE_WIN32_H
#define QGA_SERVICE_WIN32_H
#include <windows.h>
#define QGA_SERVICE_DISPLAY_NAME "QEMU Guest Agent"
#define QGA_SERVICE_NAME "qemu-ga"
#define QGA_SERVICE_DESCRIPTION "Enables integration with QEMU machine emulator and virtualizer."
static const GUID GUID_VIOSERIAL_PORT = { 0x6fde7521, 0x1b65, 0x48ae,
{ 0xb6, 0x28, 0x80, 0xbe, 0x62, 0x1, 0x60, 0x26 } };
typedef struct GAService {
SERVICE_STATUS status;
SERVICE_STATUS_HANDLE status_handle;
HDEVNOTIFY device_notification_handle;
} GAService;
int ga_install_service(const char *path, const char *logfile,
const char *state_dir);
int ga_uninstall_service(void);
#endif