[PATCH v3 09/11] libxl: add libxl_devid_to_device_vdispl interface function

[Oleksandr Grytsov <al1img@gmail.com>]

From: Oleksandr Grytsov <oleksandr_grytsov@epam.com>

Signed-off-by: Oleksandr Grytsov <oleksandr_grytsov@epam.com>
---
 tools/libxl/libxl_utils.h  |  4 ++++
 tools/libxl/libxl_vdispl.c | 31 +++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/tools/libxl/libxl_utils.h b/tools/libxl/libxl_utils.h
index 25773d8..9e743dc 100644
--- a/tools/libxl/libxl_utils.h
+++ b/tools/libxl/libxl_utils.h
@@ -78,6 +78,10 @@ int libxl_devid_to_device_vtpm(libxl_ctx *ctx, uint32_t domid,
                                int devid, libxl_device_vtpm *vtpm);
 int libxl_devid_to_device_usbctrl(libxl_ctx *ctx, uint32_t domid,
                                   int devid, libxl_device_usbctrl *usbctrl);
+
+int libxl_devid_to_device_vdispl(libxl_ctx *ctx, uint32_t domid,
+                                 int devid, libxl_device_vdispl *vdispl);
+
 int libxl_ctrlport_to_device_usbdev(libxl_ctx *ctx, uint32_t domid,
                                     int ctrl, int port,
                                     libxl_device_usbdev *usbdev);
diff --git a/tools/libxl/libxl_vdispl.c b/tools/libxl/libxl_vdispl.c
index ab90cb1..b86465d 100644
--- a/tools/libxl/libxl_vdispl.c
+++ b/tools/libxl/libxl_vdispl.c
@@ -317,6 +317,37 @@ out:
      return rc;
 }
 
+int libxl_devid_to_device_vdispl(libxl_ctx *ctx, uint32_t domid,
+                                 int devid, libxl_device_vdispl *vdispl)
+{
+    libxl_device_vdispl *vdispls = NULL;
+    int n, i;
+    int rc;
+
+    libxl_device_vdispl_init(vdispl);
+
+    vdispls = libxl_device_vdispl_list(ctx, domid, &n);
+
+    if (!vdispls) { rc = ERROR_NOTFOUND; goto out; }
+
+    for (i = 0; i < n; ++i) {
+        if (devid == vdispls[i].devid) {
+            libxl_device_vdispl_copy(ctx, vdispl, &vdispls[i]);
+            rc = 0;
+            goto out;
+        }
+    }
+
+    rc = ERROR_NOTFOUND;
+
+out:
+
+    if (vdispls) {
+        libxl_device_vdispl_list_free(vdispls, n);
+    }
+    return rc;
+}
+
 LIBXL_DEFINE_DEVICE_ADD(vdispl)
 static LIBXL_DEFINE_DEVICES_ADD(vdispl)
 LIBXL_DEFINE_DEVICE_REMOVE(vdispl)
-- 
2.7.4


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