Changeset d2c8533 in mainline for uspace/srv/vfs/vfs_ipc.c

Timestamp:

2017-05-08T20:38:47Z (7 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

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

Children:

f066a87

Parents:

582a0b8

Message:

File system probing groundwork. Only MFS can do it for now.

File:

• uspace/srv/vfs/vfs_ipc.c (modified) (2 diffs)

uspace/srv/vfs/vfs_ipc.c

@@ -45 +45 @@
 }
 
+static void vfs_in_fsprobe(ipc_callid_t rid, ipc_call_t *request)
+{
+        service_id_t service_id = (service_id_t) IPC_GET_ARG1(*request);
+        char *fs_name = NULL;
+        ipc_callid_t callid;
+        vfs_fs_probe_info_t info;
+        size_t len;
+        int rc;
+        
+        /*
+         * Now we expect the client to send us data with the name of the file 
+         * system.
+         */
+        rc = async_data_write_accept((void **) &fs_name, true, 0,
+            FS_NAME_MAXLEN, 0, NULL);
+        if (rc != EOK) {
+                async_answer_0(rid, rc);
+                return;
+        }
+        
+        rc = vfs_op_fsprobe(fs_name, service_id, &info);
+        async_answer_0(rid, rc);
+        if (rc != EOK)
+                goto out;
+        
+        /* Now we should get a read request */
+        if (!async_data_read_receive(&callid, &len))
+                goto out;
+
+        if (len > sizeof(info))
+                len = sizeof(info);
+        (void) async_data_read_finalize(callid, &info, len);
+
+out:
+        free(fs_name);
+}
+
 static void vfs_in_fstypes(ipc_callid_t rid, ipc_call_t *request)
 {
@@ -297 +334 @@
                         vfs_in_clone(callid, &call);
                         break;
+                case VFS_IN_FSPROBE:
+                        vfs_in_fsprobe(callid, &call);
+                        break;
                 case VFS_IN_FSTYPES:
                         vfs_in_fstypes(callid, &call);