qdev: remove parse/print methods for pointer properties
Pointer properties (except for PROP_PTR of course) should not need a legacy counterpart. In the future, relative paths will ensure that QEMU will support the same syntax as now for drives etc.. Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
parent
b403298adb
commit
7b009e5d09
@ -579,9 +579,8 @@ PropertyInfo qdev_prop_string = {
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/* --- drive --- */
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static int parse_drive(DeviceState *dev, Property *prop, const char *str)
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static int parse_drive(DeviceState *dev, const char *str, void **ptr)
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{
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BlockDriverState **ptr = qdev_get_prop_ptr(dev, prop);
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BlockDriverState *bs;
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bs = bdrv_find(str);
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@ -603,35 +602,30 @@ static void free_drive(DeviceState *dev, Property *prop)
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}
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}
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static int print_drive(DeviceState *dev, Property *prop, char *dest, size_t len)
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static const char *print_drive(void *ptr)
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{
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BlockDriverState **ptr = qdev_get_prop_ptr(dev, prop);
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return snprintf(dest, len, "%s",
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*ptr ? bdrv_get_device_name(*ptr) : "<null>");
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return bdrv_get_device_name(ptr);
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}
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static void get_generic(Object *obj, Visitor *v, void *opaque,
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const char *name, Error **errp)
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{
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DeviceState *dev = DEVICE(obj);
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Property *prop = opaque;
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void **ptr = qdev_get_prop_ptr(dev, prop);
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char buffer[1024];
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char *p = buffer;
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buffer[0] = 0;
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if (*ptr) {
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prop->info->print(dev, prop, buffer, sizeof(buffer));
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}
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visit_type_str(v, &p, name, errp);
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}
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static void set_generic(Object *obj, Visitor *v, void *opaque,
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static void get_pointer(Object *obj, Visitor *v, Property *prop,
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const char *(*print)(void *ptr),
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const char *name, Error **errp)
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{
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DeviceState *dev = DEVICE(obj);
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void **ptr = qdev_get_prop_ptr(dev, prop);
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char *p;
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p = (char *) (*ptr ? print(*ptr) : "");
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visit_type_str(v, &p, name, errp);
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}
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static void set_pointer(Object *obj, Visitor *v, Property *prop,
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int (*parse)(DeviceState *dev, const char *str, void **ptr),
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const char *name, Error **errp)
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{
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DeviceState *dev = DEVICE(obj);
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Property *prop = opaque;
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Error *local_err = NULL;
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void **ptr = qdev_get_prop_ptr(dev, prop);
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char *str;
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int ret;
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@ -650,36 +644,45 @@ static void set_generic(Object *obj, Visitor *v, void *opaque,
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error_set_from_qdev_prop_error(errp, EINVAL, dev, prop, str);
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return;
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}
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ret = prop->info->parse(dev, prop, str);
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ret = parse(dev, str, ptr);
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error_set_from_qdev_prop_error(errp, ret, dev, prop, str);
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g_free(str);
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}
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static void get_drive(Object *obj, Visitor *v, void *opaque,
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const char *name, Error **errp)
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{
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get_pointer(obj, v, opaque, print_drive, name, errp);
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}
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static void set_drive(Object *obj, Visitor *v, void *opaque,
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const char *name, Error **errp)
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{
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set_pointer(obj, v, opaque, parse_drive, name, errp);
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}
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PropertyInfo qdev_prop_drive = {
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.name = "drive",
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.type = PROP_TYPE_DRIVE,
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.size = sizeof(BlockDriverState *),
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.parse = parse_drive,
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.print = print_drive,
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.get = get_generic,
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.set = set_generic,
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.get = get_drive,
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.set = set_drive,
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.free = free_drive,
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};
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/* --- character device --- */
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static int parse_chr(DeviceState *dev, Property *prop, const char *str)
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static int parse_chr(DeviceState *dev, const char *str, void **ptr)
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{
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CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
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*ptr = qemu_chr_find(str);
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if (*ptr == NULL) {
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CharDriverState *chr = qemu_chr_find(str);
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if (chr == NULL) {
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return -ENOENT;
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}
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if ((*ptr)->avail_connections < 1) {
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if (chr->avail_connections < 1) {
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return -EEXIST;
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}
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--(*ptr)->avail_connections;
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*ptr = chr;
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--chr->avail_connections;
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return 0;
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}
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@ -693,62 +696,75 @@ static void free_chr(DeviceState *dev, Property *prop)
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}
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static int print_chr(DeviceState *dev, Property *prop, char *dest, size_t len)
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static const char *print_chr(void *ptr)
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{
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CharDriverState **ptr = qdev_get_prop_ptr(dev, prop);
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CharDriverState *chr = ptr;
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if (*ptr && (*ptr)->label) {
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return snprintf(dest, len, "%s", (*ptr)->label);
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} else {
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return snprintf(dest, len, "<null>");
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}
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return chr->label ? chr->label : "";
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}
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static void get_chr(Object *obj, Visitor *v, void *opaque,
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const char *name, Error **errp)
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{
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get_pointer(obj, v, opaque, print_chr, name, errp);
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}
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static void set_chr(Object *obj, Visitor *v, void *opaque,
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const char *name, Error **errp)
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{
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set_pointer(obj, v, opaque, parse_chr, name, errp);
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}
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PropertyInfo qdev_prop_chr = {
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.name = "chr",
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.type = PROP_TYPE_CHR,
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.size = sizeof(CharDriverState*),
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.parse = parse_chr,
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.print = print_chr,
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.get = get_generic,
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.set = set_generic,
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.get = get_chr,
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.set = set_chr,
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.free = free_chr,
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};
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/* --- netdev device --- */
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static int parse_netdev(DeviceState *dev, Property *prop, const char *str)
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static int parse_netdev(DeviceState *dev, const char *str, void **ptr)
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{
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VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
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VLANClientState *netdev = qemu_find_netdev(str);
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*ptr = qemu_find_netdev(str);
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if (*ptr == NULL)
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if (netdev == NULL) {
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return -ENOENT;
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if ((*ptr)->peer) {
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}
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if (netdev->peer) {
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return -EEXIST;
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}
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*ptr = netdev;
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return 0;
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}
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static int print_netdev(DeviceState *dev, Property *prop, char *dest, size_t len)
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static const char *print_netdev(void *ptr)
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{
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VLANClientState **ptr = qdev_get_prop_ptr(dev, prop);
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VLANClientState *netdev = ptr;
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if (*ptr && (*ptr)->name) {
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return snprintf(dest, len, "%s", (*ptr)->name);
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} else {
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return snprintf(dest, len, "<null>");
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}
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return netdev->name ? netdev->name : "";
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}
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static void get_netdev(Object *obj, Visitor *v, void *opaque,
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const char *name, Error **errp)
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{
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get_pointer(obj, v, opaque, print_netdev, name, errp);
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}
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static void set_netdev(Object *obj, Visitor *v, void *opaque,
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const char *name, Error **errp)
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{
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set_pointer(obj, v, opaque, parse_netdev, name, errp);
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}
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PropertyInfo qdev_prop_netdev = {
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.name = "netdev",
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.type = PROP_TYPE_NETDEV,
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.size = sizeof(VLANClientState*),
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.parse = parse_netdev,
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.print = print_netdev,
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.get = get_generic,
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.set = set_generic,
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.get = get_netdev,
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.set = set_netdev,
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};
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/* --- vlan --- */
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