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winebus.sys: Watch for hid raw device addition and removal. 

Signed-off-by: Aric Stewart <aric@codeweavers.com>
Signed-off-by: Sebastian Lackner <sebastian@fds-team.de>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Aric Stewart 2016-10-03 13:27:36 +02:00 committed by Alexandre Julliard
parent 35d9d5f40a
commit c29c3d1fad
1 changed files with 80 additions and 0 deletions
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80
dlls/winebus.sys/bus_udev.c
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@ -26,6 +26,12 @@
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_POLL_H
# include <poll.h>
#endif
#ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
#endif
#ifdef HAVE_LIBUDEV_H
# include <libudev.h>
#endif
@ -129,6 +135,11 @@ static void try_add_device(struct udev_device *dev)
HeapFree(GetProcessHeap(), 0, serial);
}
static void try_remove_device(struct udev_device *dev)
{
/* FIXME */
}
static void build_initial_deviceset(void)
{
struct udev_enumerate *enumerate;
@ -164,13 +175,82 @@ static void build_initial_deviceset(void)
udev_enumerate_unref(enumerate);
}
static struct udev_monitor *create_monitor(struct pollfd *pfd)
{
struct udev_monitor *monitor;
monitor = udev_monitor_new_from_netlink(udev_context, "udev");
if (!monitor)
{
WARN("Unable to get udev monitor object\n");
return NULL;
}
if (udev_monitor_filter_add_match_subsystem_devtype(monitor, "hidraw", NULL) < 0)
WARN("Failed to add subsystem 'hidraw' to monitor\n");
if (udev_monitor_enable_receiving(monitor) < 0)
goto error;
if ((pfd->fd = udev_monitor_get_fd(monitor)) >= 0)
{
pfd->events = POLLIN;
return monitor;
}
error:
WARN("Failed to start monitoring\n");
udev_monitor_unref(monitor);
return NULL;
}
static void process_monitor_event(struct udev_monitor *monitor)
{
struct udev_device *dev;
const char *action;
dev = udev_monitor_receive_device(monitor);
if (!dev)
{
FIXME("Failed to get device that has changed\n");
return;
}
action = udev_device_get_action(dev);
TRACE("Received action %s for udev device %s\n", debugstr_a(action),
debugstr_a(udev_device_get_devnode(dev)));
if (!action)
WARN("No action received\n");
else if (strcmp(action, "add") == 0)
try_add_device(dev);
else if (strcmp(action, "remove") == 0)
try_remove_device(dev);
else
WARN("Unhandled action %s\n", debugstr_a(action));
udev_device_unref(dev);
}
static DWORD CALLBACK deviceloop_thread(void *args)
{
struct udev_monitor *monitor;
HANDLE init_done = args;
struct pollfd pfd;
monitor = create_monitor(&pfd);
build_initial_deviceset();
SetEvent(init_done);
while (monitor)
{
if (poll(&pfd, 1, -1) <= 0) continue;
process_monitor_event(monitor);
}
TRACE("Monitor thread exiting\n");
if (monitor)
udev_monitor_unref(monitor);
return 0;
}