* THE SOFTWARE.
*/
#include "config-host.h"
-#ifdef HOST_BSD
+#ifdef CONFIG_BSD
/* include native header before sys-queue.h */
#include <sys/queue.h>
#endif
#include "block_int.h"
#include "module.h"
-#ifdef HOST_BSD
+#ifdef CONFIG_BSD
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
filename[1] == ':');
}
-static int is_windows_drive(const char *filename)
+int is_windows_drive(const char *filename)
{
if (is_windows_drive_prefix(filename) &&
filename[2] == '\0')
* Detect host devices. By convention, /dev/cdrom[N] is always
* recognized as a host CDROM.
*/
-#ifdef _WIN32
-static BlockDriver *find_hdev_driver(const char *filename)
-{
- if (strstart(filename, "/dev/cdrom", NULL))
- return bdrv_find_format("host_device");
- if (is_windows_drive(filename))
- return bdrv_find_format("host_device");
- return NULL;
-}
-#else
static BlockDriver *find_hdev_driver(const char *filename)
{
- struct stat st;
-
-#ifdef __linux__
- if (strstart(filename, "/dev/fd", NULL))
- return bdrv_find_format("host_floppy");
- if (strstart(filename, "/dev/cd", NULL))
- return bdrv_find_format("host_cdrom");
-#elif defined(__FreeBSD__)
- if (strstart(filename, "/dev/cd", NULL) ||
- strstart(filename, "/dev/acd", NULL)) {
- return bdrv_find_format("host_cdrom");
- }
-#else
- if (strstart(filename, "/dev/cdrom", NULL))
- return bdrv_find_format("host_device");
-#endif
+ int score_max = 0, score;
+ BlockDriver *drv = NULL, *d;
- if (stat(filename, &st) >= 0 &&
- (S_ISCHR(st.st_mode) || S_ISBLK(st.st_mode))) {
- return bdrv_find_format("host_device");
+ for (d = first_drv; d; d = d->next) {
+ if (d->bdrv_probe_device) {
+ score = d->bdrv_probe_device(filename);
+ if (score > score_max) {
+ score_max = score;
+ drv = d;
+ }
+ }
}
- return NULL;
+ return drv;
}
-#endif
static BlockDriver *find_image_format(const char *filename)
{
/* Note: for compatibility, we open disk image files as RDWR, and
RDONLY as fallback */
if (!(flags & BDRV_O_FILE))
- open_flags = BDRV_O_RDWR | (flags & BDRV_O_CACHE_MASK);
+ open_flags = BDRV_O_RDWR |
+ (flags & (BDRV_O_CACHE_MASK|BDRV_O_NATIVE_AIO));
else
open_flags = flags & ~(BDRV_O_FILE | BDRV_O_SNAPSHOT);
ret = drv->bdrv_open(bs, filename, open_flags);
return drv->bdrv_get_info(bs, bdi);
}
-int bdrv_put_buffer(BlockDriverState *bs, const uint8_t *buf, int64_t pos, int size)
+int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf,
+ int64_t pos, int size)
{
BlockDriver *drv = bs->drv;
if (!drv)
return -ENOMEDIUM;
- if (!drv->bdrv_put_buffer)
+ if (!drv->bdrv_save_vmstate)
return -ENOTSUP;
- return drv->bdrv_put_buffer(bs, buf, pos, size);
+ return drv->bdrv_save_vmstate(bs, buf, pos, size);
}
-int bdrv_get_buffer(BlockDriverState *bs, uint8_t *buf, int64_t pos, int size)
+int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
+ int64_t pos, int size)
{
BlockDriver *drv = bs->drv;
if (!drv)
return -ENOMEDIUM;
- if (!drv->bdrv_get_buffer)
+ if (!drv->bdrv_load_vmstate)
return -ENOTSUP;
- return drv->bdrv_get_buffer(bs, buf, pos, size);
+ return drv->bdrv_load_vmstate(bs, buf, pos, size);
}
/**************************************************************/
static void bdrv_aio_cancel_em(BlockDriverAIOCB *blockacb)
{
BlockDriverAIOCBSync *acb = (BlockDriverAIOCBSync *)blockacb;
- qemu_bh_cancel(acb->bh);
+ qemu_bh_delete(acb->bh);
+ acb->bh = NULL;
qemu_aio_release(acb);
}
qemu_iovec_from_buffer(acb->qiov, acb->bounce, acb->qiov->size);
qemu_vfree(acb->bounce);
acb->common.cb(acb->common.opaque, acb->ret);
-
+ qemu_bh_delete(acb->bh);
+ acb->bh = NULL;
qemu_aio_release(acb);
}
/**
* If eject_flag is TRUE, eject the media. Otherwise, close the tray
*/
-void bdrv_eject(BlockDriverState *bs, int eject_flag)
+int bdrv_eject(BlockDriverState *bs, int eject_flag)
{
BlockDriver *drv = bs->drv;
int ret;
+ if (bs->locked) {
+ return -EBUSY;
+ }
+
if (!drv || !drv->bdrv_eject) {
ret = -ENOTSUP;
} else {
if (ret == -ENOTSUP) {
if (eject_flag)
bdrv_close(bs);
+ ret = 0;
}
+
+ return ret;
}
int bdrv_is_locked(BlockDriverState *bs)