[Spice-devel] [spice-gtk Win32 v3 07/12] Windows mingw: usb: implement GUdevDevice & GUdevClient for windows
Arnon Gilboa
agilboa at redhat.com
Thu Jun 28 06:36:37 PDT 2012
reviewed most of it before;) but added some comments for your changes below.
Uri Lublin wrote:
> From: Arnon Gilboa <agilboa at redhat.com>
>
> - Added win-usb-dev.[ch]
> - Added GUdevDevice and GUdevClient like classes
> - Added uevent signal based on WM_DEVICECHANGE
>
> With this patch usb-device-manager can work with little changes
> on windows too.
> ---
> gtk/Makefile.am | 13 ++
> gtk/usb-device-manager.c | 8 +
> gtk/win-usb-dev.c | 515 ++++++++++++++++++++++++++++++++++++++++++++++
> gtk/win-usb-dev.h | 112 ++++++++++
> 4 files changed, 648 insertions(+), 0 deletions(-)
> create mode 100644 gtk/win-usb-dev.c
> create mode 100644 gtk/win-usb-dev.h
>
> diff --git a/gtk/Makefile.am b/gtk/Makefile.am
> index 0cf5952..4df3ee5 100644
> --- a/gtk/Makefile.am
> +++ b/gtk/Makefile.am
> @@ -312,6 +312,19 @@ libspice_client_glib_2_0_la_SOURCES += coroutine_gthread.c
> libspice_client_glib_2_0_la_LIBADD += $(GTHREAD_LIBS)
> endif
>
> +
> +WIN_USB_FILES= \
> + win-usb-dev.h \
> + win-usb-dev.c \
> + $(NULL)
> +
> +if OS_WIN32
> +if WITH_USBREDIR
> +libspice_client_glib_2_0_la_SOURCES += \
> + $(WIN_USB_FILES)
> +endif
> +endif
> +
> displaysrc = \
> glib-compat.h \
> display/edid.h \
> diff --git a/gtk/usb-device-manager.c b/gtk/usb-device-manager.c
> index 4448a74..e4c8c32 100644
> --- a/gtk/usb-device-manager.c
> +++ b/gtk/usb-device-manager.c
> @@ -28,7 +28,15 @@
> #ifdef USE_USBREDIR
> #include <errno.h>
> #include <libusb.h>
> +
> +#if defined(USE_GUDEV)
> #include <gudev/gudev.h>
> +#elif defined(G_OS_WIN32)
> +#include "win-usb-dev.h"
> +#else
> +#warning "Expecting one of G_OS_WIN32 and USE_GUDEV to be defined"
> +#endif
> +
> #include "channel-usbredir-priv.h"
> #include "usbredirhost.h"
> #include "usbutil.h"
> diff --git a/gtk/win-usb-dev.c b/gtk/win-usb-dev.c
> new file mode 100644
> index 0000000..b07d28b
> --- /dev/null
> +++ b/gtk/win-usb-dev.c
> @@ -0,0 +1,515 @@
> +/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
> +/*
> + Copyright (C) 2012 Red Hat, Inc.
> +
> + Red Hat Authors:
> + Arnon Gilboa <agilboa at redhat.com>
> + Uri Lublin <uril at redhat.com>
> +
> + This library is free software; you can redistribute it and/or
> + modify it under the terms of the GNU Lesser General Public
> + License as published by the Free Software Foundation; either
> + version 2.1 of the License, or (at your option) any later version.
> +
> + This library is distributed in the hope that it will be useful,
> + but WITHOUT ANY WARRANTY; without even the implied warranty of
> + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + Lesser General Public License for more details.
> +
> + You should have received a copy of the GNU Lesser General Public
> + License along with this library; if not, see <http://www.gnu.org/licenses/>.
> +*/
> +
> +#ifdef HAVE_CONFIG_H
> +#include "config.h"
> +#endif
> +
> +#include <windows.h>
> +#include <libusb.h>
> +#include "win-usb-dev.h"
> +#include "spice-marshal.h"
> +#include "spice-util.h"
> +#include "usbutil.h"
> +
> +#define G_UDEV_CLIENT_GET_PRIVATE(obj) \
> + (G_TYPE_INSTANCE_GET_PRIVATE((obj), G_UDEV_TYPE_CLIENT, GUdevClientPrivate))
> +
> +struct _GUdevClientPrivate {
> + libusb_context *ctx;
> + gssize udev_list_size;
> + GList *udev_list;
> + HWND hwnd;
> +};
> +
> +#define G_UDEV_CLIENT_WINCLASS_NAME TEXT("G_UDEV_CLIENT")
> +
> +static void g_udev_client_initable_iface_init(GInitableIface *iface);
> +
> +G_DEFINE_TYPE_WITH_CODE(GUdevClient, g_udev_client, G_TYPE_OBJECT,
> + G_IMPLEMENT_INTERFACE(G_TYPE_INITABLE, g_udev_client_initable_iface_init));
> +
> +
> +typedef struct _GUdevDeviceInfo GUdevDeviceInfo;
> +
> +struct _GUdevDeviceInfo {
> + guint16 bus;
> + guint16 addr;
> + guint16 vid;
> + guint16 pid;
> + guint16 class;
> + gchar sclass[4];
> + gchar sbus[4];
> + gchar saddr[4];
> +};
> +
> +struct _GUdevDevicePrivate
> +{
> + /* FixMe: move above fields to this structure and access them directly */
>
it will cleanup some code as well, remove the g_new0/g_free calls.
you will also find it nice to merge get_usb_dev_info into
g_udev_device_new, so it will be
static GUdevDevice *g_udev_device_new(libusb_device *dev, GUdevDeviceInfo *udevinfo);
> + GUdevDeviceInfo *udevinfo;
> +};
> +
> +G_DEFINE_TYPE(GUdevDevice, g_udev_device, G_TYPE_OBJECT)
> +
> +
> +enum
> +{
> + UEVENT_SIGNAL,
> + LAST_SIGNAL,
> +};
> +
> +static guint signals[LAST_SIGNAL] = { 0, };
> +static GUdevClient *singleton = NULL;
> +
> +static GUdevDevice *g_udev_device_new(GUdevDeviceInfo *udevinfo);
> +static LRESULT CALLBACK wnd_proc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
> +static gboolean get_usb_dev_info(libusb_device *dev, GUdevDeviceInfo *udevinfo);
> +
> +//uncomment to debug gudev device lists.
> +//#define DEBUG_GUDEV_DEVICE_LISTS
> +
> +#ifdef DEBUG_GUDEV_DEVICE_LISTS
> +static void g_udev_device_print_list(GList *l, const gchar *msg);
> +#else
> +static void g_udev_device_print_list(GList *l, const gchar *msg) {}
> +#endif
> +static void g_udev_device_print(GUdevDevice *udev, const gchar *msg);
> +
> +GQuark g_udev_client_error_quark(void)
> +{
> + return g_quark_from_static_string("win-gudev-client-error-quark");
> +}
> +
> +GUdevClient *g_udev_client_new(const gchar* const *subsystems)
> +{
> + if (!singleton) {
> + singleton = g_initable_new(G_UDEV_TYPE_CLIENT, NULL, NULL, NULL);
> + return singleton;
> + } else {
> + return g_object_ref(singleton);
> + }
> +}
> +
> +
> +/*
> + * devs [in,out] an empty devs list in, full devs list out
> + * Returns: number-of-devices, or a negative value on error.
> + */
> +static ssize_t
> +g_udev_client_list_devices(GUdevClient *self, GList **devs,
> + GError **err, const gchar *name)
> +{
>
is it really required to have err & name params?
> + gssize rc;
> + libusb_device **lusb_list, **dev;
> + GUdevClientPrivate *priv;
> + GUdevDeviceInfo *udevinfo;
> + GUdevDevice *udevice;
> + ssize_t n;
> +
> + g_return_val_if_fail(G_UDEV_IS_CLIENT(self), -1);
> + g_return_val_if_fail(devs != NULL, -2);
> +
> + priv = self->priv;
> +
> + g_return_val_if_fail(self->priv->ctx != NULL, -3);
> +
> + rc = libusb_get_device_list(priv->ctx, &lusb_list);
> + if (rc < 0) {
> + const char *errstr = spice_usbutil_libusb_strerror(rc);
> + g_warning("%s: libusb_get_device_list failed", name);
> + g_set_error(err, G_UDEV_CLIENT_ERROR, G_UDEV_CLIENT_LIBUSB_FAILED,
> + "%s: Error getting device list from libusb: %s [%i]",
> + name, errstr, rc);
> + return -4;
> + }
> +
> + n = rc;
> +
> + for (dev = lusb_list; *dev; dev++) {
> + udevinfo = g_new0(GUdevDeviceInfo, 1);
> + get_usb_dev_info(*dev, udevinfo);
> + udevice = g_udev_device_new(udevinfo);
> + *devs = g_list_prepend(*devs, udevice);
> + }
> + libusb_free_device_list(lusb_list, 1);
> +
> + return n;
> +}
>
I personally don't like these return codes.
> +
> +static void g_udev_client_free_device_list(GList **devs)
> +{
> + g_return_if_fail(devs != NULL);
> + if (*devs) {
> + g_list_free_full(*devs, g_object_unref);
> + *devs = NULL;
> + }
> +}
> +
> +
> +static gboolean
> +g_udev_client_initable_init(GInitable *initable, GCancellable *cancellable,
> + GError **err)
> +{
> + GUdevClient *self;
> + GUdevClientPrivate *priv;
> + WNDCLASS wcls;
> + int rc;
> +
> + g_return_val_if_fail(G_UDEV_IS_CLIENT(initable), FALSE);
> + g_return_val_if_fail(cancellable == NULL, FALSE);
> +
> + self = G_UDEV_CLIENT(initable);
> + priv = self->priv;
> +
> + rc = libusb_init(&priv->ctx);
> + if (rc < 0) {
> + const char *errstr = spice_usbutil_libusb_strerror(rc);
> + g_warning("Error initializing USB support: %s [%i]", errstr, rc);
> + g_set_error(err, G_UDEV_CLIENT_ERROR, G_UDEV_CLIENT_LIBUSB_FAILED,
> + "Error initializing USB support: %s [%i]", errstr, rc);
> + return FALSE;
> + }
> +
> + /* get initial device list */
> + priv->udev_list_size = g_udev_client_list_devices(self, &priv->udev_list,
> + err, __FUNCTION__);
> + if (priv->udev_list_size < 0) {
> + goto g_udev_client_init_failed;
> + }
> +
> + g_udev_device_print_list(priv->udev_list, "init: first list is: ");
> +
> + /* create a hidden window */
> + memset(&wcls, 0, sizeof(wcls));
> + wcls.lpfnWndProc = wnd_proc;
> + wcls.lpszClassName = G_UDEV_CLIENT_WINCLASS_NAME;
> + if (!RegisterClass(&wcls)) {
> + DWORD e = GetLastError();
> + g_warning("RegisterClass failed , %ld", (long)e);
> + g_set_error(err, G_UDEV_CLIENT_ERROR, G_UDEV_CLIENT_WINAPI_FAILED,
> + "RegisterClass failed: %ld", (long)e);
> + goto g_udev_client_init_failed;
> + }
> + priv->hwnd = CreateWindow(G_UDEV_CLIENT_WINCLASS_NAME,
> + NULL, 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL);
> + if (!priv->hwnd) {
> + DWORD e = GetLastError();
> + g_warning("CreateWindow failed: %ld", (long)e);
> + g_set_error(err, G_UDEV_CLIENT_ERROR, G_UDEV_CLIENT_LIBUSB_FAILED,
> + "CreateWindow failed: %ld", (long)e);
> + goto g_udev_client_init_failed_unreg;
> + }
> +
> + return TRUE;
> +
> + g_udev_client_init_failed_unreg:
> + UnregisterClass(G_UDEV_CLIENT_WINCLASS_NAME, NULL);
> + g_udev_client_init_failed:
> + libusb_exit(priv->ctx);
> + priv->ctx = NULL;
> +
> + return FALSE;
> +}
> +
> +static void g_udev_client_initable_iface_init(GInitableIface *iface)
> +{
> + iface->init = g_udev_client_initable_init;
> +}
> +
> +GList *g_udev_client_query_by_subsystem(GUdevClient *self, const gchar *subsystem)
> +{
> + GList *l = g_list_copy(self->priv->udev_list);
> + g_list_foreach(l, (GFunc)g_object_ref, NULL);
> + return l;
> +}
> +
> +static void g_udev_client_init(GUdevClient *self)
> +{
> + self->priv = G_UDEV_CLIENT_GET_PRIVATE(self);
> +}
> +
> +static void g_udev_client_finalize(GObject *gobject)
> +{
> + GUdevClient *self = G_UDEV_CLIENT(gobject);
> + GUdevClientPrivate *priv = self->priv;
> +
> + singleton = NULL;
> + DestroyWindow(priv->hwnd);
> + UnregisterClass(G_UDEV_CLIENT_WINCLASS_NAME, NULL);
> + g_udev_client_free_device_list(&priv->udev_list);
> +
> + /* free libusb context initializing by libusb_init() */
> + g_warn_if_fail(priv->ctx != NULL);
> + libusb_exit(priv->ctx);
> +
> + /* Chain up to the parent class */
> + if (G_OBJECT_CLASS(g_udev_client_parent_class)->finalize)
> + G_OBJECT_CLASS(g_udev_client_parent_class)->finalize(gobject);
> +}
> +
> +static void g_udev_client_class_init(GUdevClientClass *klass)
> +{
> + GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
> +
> + gobject_class->finalize = g_udev_client_finalize;
> +
> + signals[UEVENT_SIGNAL] =
> + g_signal_new("uevent",
> + G_OBJECT_CLASS_TYPE(klass),
> + G_SIGNAL_RUN_FIRST,
> + G_STRUCT_OFFSET(GUdevClientClass, uevent),
> + NULL, NULL,
> + g_cclosure_user_marshal_VOID__BOXED_BOXED,
> + G_TYPE_NONE,
> + 2,
> + G_TYPE_STRING,
> + G_UDEV_TYPE_DEVICE);
> +
> + g_type_class_add_private(klass, sizeof(GUdevClientPrivate));
> +}
> +
> +static gboolean get_usb_dev_info(libusb_device *dev, GUdevDeviceInfo *udevinfo)
> +{
> + struct libusb_device_descriptor desc;
> +
> + g_return_val_if_fail(dev, FALSE);
> + g_return_val_if_fail(udevinfo, FALSE);
> +
> + if (libusb_get_device_descriptor(dev, &desc) < 0) {
> + g_warning("cannot get device descriptor %p", dev);
> + return FALSE;
> + }
> +
> + udevinfo->bus = libusb_get_bus_number(dev);
> + udevinfo->addr = libusb_get_device_address(dev);
> + udevinfo->class = desc.bDeviceClass;
> + udevinfo->vid = desc.idVendor;
> + udevinfo->pid = desc.idProduct;
> + snprintf(udevinfo->sclass, sizeof(udevinfo->sclass), "%d", udevinfo->class);
> + snprintf(udevinfo->sbus, sizeof(udevinfo->sbus), "%d", udevinfo->bus);
> + snprintf(udevinfo->saddr, sizeof(udevinfo->saddr), "%d", udevinfo->addr);
> + return TRUE;
> +}
> +
> +#define INT_RETURN_IF_DIFFERENT(x, y) \
> + do { gint c,d; c=(x); d=(y); if(c-d) return (c-d); } while(0)
> +
>
funny macro;) I prefer removing it and simply using if (a - b) return FALSE;
> +static gint gudev_device_compare(GUdevDevice *a, GUdevDevice *b)
>
gboolean return might be nicer
> +{
> + GUdevDeviceInfo *ai, *bi;
> +
> + g_return_val_if_fail(G_UDEV_DEVICE(a), 1);
> + g_return_val_if_fail(G_UDEV_DEVICE(b), -1);
> +
> + ai = a->priv->udevinfo;
> + bi = b->priv->udevinfo;
> +
> + INT_RETURN_IF_DIFFERENT(ai->bus, bi->bus);
> + INT_RETURN_IF_DIFFERENT(ai->addr, bi->addr);
> + INT_RETURN_IF_DIFFERENT(ai->vid, bi->vid);
> + INT_RETURN_IF_DIFFERENT(ai->pid, bi->pid);
> +
> + return 0;
>
return TRUE;
> +}
> +
> +
> +/* Assumes each event stands for a single device change (at most) */
> +static void handle_dev_change(GUdevClient *self)
> +{
> + GUdevClientPrivate *priv = self->priv;
> + GUdevDevice *changed_dev = NULL;
> + ssize_t dev_count;
> + int is_dev_change;
> + GError *err;
> + GList *now_devs = NULL;
> + GList *llist, *slist; /* long-list and short-list*/
> + GList *lit, *sit; /* iterators for long-list and short-list */
> + GUdevDevice *ldev, *sdev; /* devices on long-list and short-list */
> +
> + dev_count = g_udev_client_list_devices(self, &now_devs, &err,
> + __FUNCTION__);
> + g_return_if_fail(dev_count >= 0);
> +
> + SPICE_DEBUG("number of current devices %d, I know about %d devices",
> + dev_count, priv->udev_list_size);
> +
> + is_dev_change = dev_count - priv->udev_list_size;
> + if (is_dev_change == 0) {
> + g_udev_client_free_device_list(&now_devs);
> + return;
> + }
> +
> + if (is_dev_change > 0) {
> + llist = now_devs;
> + slist = priv->udev_list;
> + } else {
> + llist = priv->udev_list;
> + slist = now_devs;
> + }
> +
> + g_udev_device_print_list(llist, "handle_dev_change: long list:");
> + g_udev_device_print_list(slist, "handle_dev_change: short list:");
>
do we still need these debug lines?
> +
> + /* Go over the longer list */
> + for (lit = g_list_first(llist); lit != NULL; lit=g_list_next(lit)) {
> + ldev = lit->data;
> + /* Look for dev in the shorther list */
> + for (sit = g_list_first(slist); sit != NULL; sit=g_list_next(sit)) {
> + sdev = sit->data;
> + if (gudev_device_compare(ldev, sdev) == 0)
>
in case of gboolean, gudev_device_compare(ldev, sdev)
> + break;
> + }
> + if (sit == NULL) {
> + /* Found a device which appears only in the longer list */
> + changed_dev = ldev;
> + break;
> + }
> + }
> +
> + if (!changed_dev) {
> + g_warning("couldn't find any device change");
> + goto leave;
> + }
> +
> + if (is_dev_change > 0) {
> + g_udev_device_print(changed_dev, ">>> USB device inserted");
> + g_signal_emit(self, signals[UEVENT_SIGNAL], 0, "add", changed_dev);
> + } else {
> + g_udev_device_print(changed_dev, "<<< USB device removed");
> + g_signal_emit(self, signals[UEVENT_SIGNAL], 0, "remove", changed_dev);
> + }
> +
> +leave:
> + /* keep most recent info: free previous list, and keep current list */
> + g_udev_client_free_device_list(&priv->udev_list);
> + priv->udev_list = now_devs;
> + priv->udev_list_size = dev_count;
> +}
> +
> +static LRESULT CALLBACK wnd_proc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
> +{
> + /* Only DBT_DEVNODES_CHANGED recieved */
> + if (message == WM_DEVICECHANGE) {
> + handle_dev_change(singleton);
> + }
> + return DefWindowProc(hwnd, message, wparam, lparam);
> +}
> +
> +/*** GUdevDevice ***/
> +
> +static void g_udev_device_finalize(GObject *object)
> +{
> + GUdevDevice *device = G_UDEV_DEVICE(object);
> +
> + g_free(device->priv->udevinfo);
>
g_free will be removed when we get rid of _GUdevDeviceInfo
> + if (G_OBJECT_CLASS(g_udev_device_parent_class)->finalize != NULL)
> + (* G_OBJECT_CLASS(g_udev_device_parent_class)->finalize)(object);
> +}
> +
> +static void g_udev_device_class_init(GUdevDeviceClass *klass)
> +{
> + GObjectClass *gobject_class = (GObjectClass *) klass;
> +
> + gobject_class->finalize = g_udev_device_finalize;
> + g_type_class_add_private (klass, sizeof(GUdevDevicePrivate));
> +}
> +
> +static void g_udev_device_init(GUdevDevice *device)
> +{
> + device->priv = G_TYPE_INSTANCE_GET_PRIVATE(device, G_UDEV_TYPE_DEVICE, GUdevDevicePrivate);
> +}
> +
> +static GUdevDevice *g_udev_device_new(GUdevDeviceInfo *udevinfo)
> +{
> + GUdevDevice *device;
> +
> + g_return_val_if_fail(udevinfo != NULL, NULL);
> +
> + device = G_UDEV_DEVICE(g_object_new(G_UDEV_TYPE_DEVICE, NULL));
> + device->priv->udevinfo = udevinfo;
> + return device;
> +}
> +
> +const gchar *g_udev_device_get_property(GUdevDevice *udev, const gchar *property)
> +{
> + GUdevDeviceInfo* udevinfo;
> +
> + g_return_val_if_fail(G_UDEV_DEVICE(udev), NULL);
> + g_return_val_if_fail(property != NULL, NULL);
> +
> + udevinfo = udev->priv->udevinfo;
> + g_return_val_if_fail(udevinfo != NULL, NULL);
> +
> + if (g_strcmp0(property, "BUSNUM") == 0) {
> + return udevinfo->sbus;
> + } else if (g_strcmp0(property, "DEVNUM") == 0) {
> + return udevinfo->saddr;
> + } else if (g_strcmp0(property, "DEVTYPE") == 0) {
> + return "usb_device";
> + }
> +
> + g_warn_if_reached();
> + return NULL;
> +}
> +
> +const gchar *g_udev_device_get_sysfs_attr(GUdevDevice *udev, const gchar *attr)
> +{
> + GUdevDeviceInfo* udevinfo;
> +
> + g_return_val_if_fail(G_UDEV_DEVICE(udev), NULL);
> + g_return_val_if_fail(attr != NULL, NULL);
> +
> + udevinfo = udev->priv->udevinfo;
> + g_return_val_if_fail(udevinfo != NULL, NULL);
> +
> +
> + if (g_strcmp0(attr, "bDeviceClass") == 0) {
> + return udevinfo->sclass;
> + }
> + g_warn_if_reached();
> + return NULL;
> +}
> +
> +#ifdef DEBUG_GUDEV_DEVICE_LISTS
> +static void g_udev_device_print_list(GList *l, const gchar *msg)
> +{
> + GList *it;
> +
> + for (it = g_list_first(l); it != NULL; it=g_list_next(it)) {
> + g_udev_device_print(it->data, msg);
> + }
> +}
> +#endif
>
still need it?
> +
> +static void g_udev_device_print(GUdevDevice *udev, const gchar *msg)
> +{
> + GUdevDeviceInfo* udevinfo;
> +
> + g_return_if_fail(G_UDEV_DEVICE(udev));
> +
> + udevinfo = udev->priv->udevinfo;
> + g_return_if_fail(udevinfo != NULL);
> +
> + SPICE_DEBUG("%s: %d.%d 0x%04x:0x%04x class %d", msg,
> + udevinfo->bus, udevinfo->addr,
> + udevinfo->vid, udevinfo->pid, udevinfo->class);
> +}
> diff --git a/gtk/win-usb-dev.h b/gtk/win-usb-dev.h
> new file mode 100644
> index 0000000..31ad72e
> --- /dev/null
> +++ b/gtk/win-usb-dev.h
> @@ -0,0 +1,112 @@
> +/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
> +/*
> + Copyright (C) 2012 Red Hat, Inc.
> +
> + Red Hat Authors:
> + Arnon Gilboa <agilboa at redhat.com>
> + Uri Lublin <uril at redhat.com>
> +
> + This library is free software; you can redistribute it and/or
> + modify it under the terms of the GNU Lesser General Public
> + License as published by the Free Software Foundation; either
> + version 2.1 of the License, or (at your option) any later version.
> +
> + This library is distributed in the hope that it will be useful,
> + but WITHOUT ANY WARRANTY; without even the implied warranty of
> + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
> + Lesser General Public License for more details.
> +
> + You should have received a copy of the GNU Lesser General Public
> + License along with this library; if not, see <http://www.gnu.org/licenses/>.
> +*/
> +#ifndef __WIN_USB_DEV_H__
> +#define __WIN_USB_DEV_H__
> +
> +#include <gtk/gtk.h>
> +
> +G_BEGIN_DECLS
> +
> +/* GUdevDevice */
> +
> +#define G_UDEV_TYPE_DEVICE (g_udev_device_get_type())
> +#define G_UDEV_DEVICE(o) (G_TYPE_CHECK_INSTANCE_CAST((o), G_UDEV_TYPE_DEVICE, GUdevDevice))
> +#define G_UDEV_DEVICE_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_UDEV_TYPE_DEVICE, GUdevDeviceClass))
> +#define G_UDEV_IS_DEVICE(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_UDEV_TYPE_DEVICE))
> +#define G_UDEV_IS_DEVICE_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), G_UDEV_TYPE_DEVICE))
> +#define G_UDEV_DEVICE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), G_UDEV_TYPE_DEVICE, GUdevDeviceClass))
> +
> +typedef struct _GUdevDevice GUdevDevice;
> +typedef struct _GUdevDeviceClass GUdevDeviceClass;
> +typedef struct _GUdevDevicePrivate GUdevDevicePrivate;
> +
> +struct _GUdevDevice
> +{
> + GObject parent;
> + GUdevDevicePrivate *priv;
> +};
> +
> +struct _GUdevDeviceClass
> +{
> + GObjectClass parent_class;
> +};
> +
> +/* GUdevClient */
> +
> +#define G_UDEV_TYPE_CLIENT (g_udev_client_get_type())
> +#define G_UDEV_CLIENT(o) (G_TYPE_CHECK_INSTANCE_CAST((o), G_UDEV_TYPE_CLIENT, GUdevClient))
> +#define G_UDEV_CLIENT_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_UDEV_TYPE_CLIENT, GUdevClientClass))
> +#define G_UDEV_IS_CLIENT(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), G_UDEV_TYPE_CLIENT))
> +#define G_UDEV_IS_CLIENT_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), G_UDEV_TYPE_CLIENT))
> +#define G_UDEV_CLIENT_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), G_UDEV_TYPE_CLIENT, GUdevClientClass))
> +
> +typedef struct _GUdevClient GUdevClient;
> +typedef struct _GUdevClientClass GUdevClientClass;
> +typedef struct _GUdevClientPrivate GUdevClientPrivate;
> +
> +struct _GUdevClient
> +{
> + GObject parent;
> +
> + GUdevClientPrivate *priv;
> +};
> +
> +struct _GUdevClientClass
> +{
> + GObjectClass parent_class;
> +
> + /* signals */
> + void (*uevent)(GUdevClient *client, const gchar *action, GUdevDevice *device);
> +};
> +
> +typedef struct _SpiceUsbDeviceManager SpiceUsbDeviceManager;
>
any reason we need to know SpiceUsbDeviceManager here?
> +
> +GType g_udev_client_get_type(void) G_GNUC_CONST;
> +GUdevClient *g_udev_client_new(const gchar* const *subsystems);
> +GList *g_udev_client_query_by_subsystem(GUdevClient *client, const gchar *subsystem);
> +
> +GType g_udev_device_get_type(void) G_GNUC_CONST;
> +const gchar *g_udev_device_get_property(GUdevDevice *udev, const gchar *property);
> +const gchar *g_udev_device_get_sysfs_attr(GUdevDevice *udev, const gchar *attr);
> +
> +GQuark g_udev_client_error_quark(void);
> +#define G_UDEV_CLIENT_ERROR g_udev_client_error_quark()
> +
> +/**
> + * GUdevClientError:
> + * @G_UDEV_CLIENT_ERROR_FAILED: generic error code
> + * @G_UDEV_CLIENT_LIBUSB_FAILED: a libusb call failed
> + * @G_UDEV_CLIENT_WINAPI_FAILED: a winapi call failed
> + *
> + * Error codes returned by spice-client API.
> + */
> +typedef enum
> +{
> + G_UDEV_CLIENT_ERROR_FAILED = 1,
> + G_UDEV_CLIENT_LIBUSB_FAILED,
> + G_UDEV_CLIENT_WINAPI_FAILED
> +} GUdevClientError;
> +
> +
> +G_END_DECLS
> +
> +#endif /* __WIN_USB_DEV_H__ */
>
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