Changeset 9dc6083 in mainline for uspace/lib/fs/libfs.c

Timestamp:

2013-07-06T15:53:01Z (11 years ago)

Author:

Manuele Conti <conti.ma@…>

Branches:

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

Children:

11baebb

Parents:

66366470

Message:

Implement statfs operation.

File:

• uspace/lib/fs/libfs.c (modified) (3 diffs)

uspace/lib/fs/libfs.c

@@ -45 +45 @@
 #include <mem.h>
 #include <sys/stat.h>
+#include <sys/statfs.h>
 #include <stdlib.h>
 
@@ -218 +219 @@
         async_answer_0(rid, rc);
 }
+#include<stdio.h>
+static void vfs_out_statfs(ipc_callid_t rid, ipc_call_t *req)
+{       
+        printf("TRACE: vfs_out_statfs\n");
+        service_id_t service_id = (service_id_t) IPC_GET_ARG1(*req);
+        fs_index_t index = (fs_index_t) IPC_GET_ARG2(*req);
+        
+        fs_node_t *fn;
+        int rc = libfs_ops->node_get(&fn, service_id, index);
+        on_error(rc, answer_and_return(rid, rc));
+        
+        ipc_callid_t callid;
+        size_t size;
+        if ((!async_data_read_receive(&callid, &size)) ||
+            (size != sizeof(struct stat))) {
+                libfs_ops->node_put(fn);
+                async_answer_0(callid, EINVAL);
+                async_answer_0(rid, EINVAL);
+                return;
+        }
+        
+        struct statfs statfs;
+        memset(&statfs, 0, sizeof(struct statfs));
+        
+        statfs.f_bsize = libfs_ops->size_block(service_id);
+
+        libfs_ops->node_put(fn);
+        
+        async_data_read_finalize(callid, &statfs, sizeof(struct statfs));
+        async_answer_0(rid, EOK);
+}
 
 static void vfs_connection(ipc_callid_t iid, ipc_call_t *icall, void *arg)
@@ -276 +308 @@
                 case VFS_OUT_SYNC:
                         vfs_out_sync(callid, &call);
+                        break;
+                case VFS_OUT_STATFS:
+                        vfs_out_statfs(callid, &call);
                         break;
                 default: