Changeset 9e195e2c in mainline for uspace/srv/devman/main.c

Timestamp:

2011-05-12T09:03:00Z (13 years ago)

Author:

Lubos Slovak <lubos.slovak@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d59d0bb

Parents:

456aea3 (diff), c372e03 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge from development

File:

• uspace/srv/devman/main.c (modified) (2 diffs)

uspace/srv/devman/main.c

@@ -515 +515 @@
 }
 
+/** Find device path by its handle. */
+static void devman_get_device_path_by_handle(ipc_callid_t iid,
+    ipc_call_t *icall)
+{
+        devman_handle_t handle = IPC_GET_ARG1(*icall);
+
+        fun_node_t *fun = find_fun_node(&device_tree, handle);
+        if (fun == NULL) {
+                async_answer_0(iid, ENOMEM);
+                return;
+        }
+
+        ipc_callid_t data_callid;
+        size_t data_len;
+        if (!async_data_read_receive(&data_callid, &data_len)) {
+                async_answer_0(iid, EINVAL);
+                return;
+        }
+
+        void *buffer = malloc(data_len);
+        if (buffer == NULL) {
+                async_answer_0(data_callid, ENOMEM);
+                async_answer_0(iid, ENOMEM);
+                return;
+        }
+
+        size_t sent_length = str_size(fun->pathname);
+        if (sent_length > data_len) {
+                sent_length = data_len;
+        }
+
+        async_data_read_finalize(data_callid, fun->pathname, sent_length);
+        async_answer_0(iid, EOK);
+
+        free(buffer);
+}
+
 
 /** Function for handling connections from a client to the device manager. */
@@ -536 +573 @@
                 case DEVMAN_DEVICE_GET_HANDLE_BY_CLASS:
                         devman_function_get_handle_by_class(callid, &call);
+                        break;
+                case DEVMAN_DEVICE_GET_DEVICE_PATH:
+                        devman_get_device_path_by_handle(callid, &call);
                         break;
                 default: