Changeset a8e9ab8d in mainline for uspace/lib/libc/generic/vfs/vfs.c

Timestamp:

2008-03-09T17:18:30Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

4072980

Parents:

2664838b

Message:

Support for rename().

File:

• uspace/lib/libc/generic/vfs/vfs.c (modified) (1 diff)

uspace/lib/libc/generic/vfs/vfs.c

@@ -469 +469 @@
 }
 
+int rename(const char *old, const char *new)
+{
+        int res;
+        ipcarg_t rc;
+        aid_t req;
+        
+        char *olda = absolutize(old);
+        if (!olda)
+                return ENOMEM;
+        size_t oldc_len;
+        char *oldc = canonify(olda, &oldc_len);
+        if (!oldc) {
+                free(olda);
+                return EINVAL;
+        }
+        char *newa = absolutize(new);
+        if (!newa) {
+                free(olda);
+                return ENOMEM;
+        }
+        size_t newc_len;
+        char *newc = canonify(newa, &newc_len);
+        if (!newc) {
+                free(olda);
+                free(newa);
+                return EINVAL;
+        }
+
+        futex_down(&vfs_phone_futex);
+        async_serialize_start();
+        if (vfs_phone < 0) {
+                res = vfs_connect();
+                if (res < 0) {
+                        async_serialize_end();
+                        futex_up(&vfs_phone_futex);
+                        free(olda);
+                        free(newa);
+                        return res;
+                }
+        }
+        req = async_send_0(vfs_phone, VFS_RENAME, NULL);
+        rc = ipc_data_write_start(vfs_phone, oldc, oldc_len);
+        if (rc != EOK) {
+                async_wait_for(req, NULL);
+                async_serialize_end();
+                futex_up(&vfs_phone_futex);
+                free(olda);
+                free(newa);
+                return (int) rc;
+        }
+        rc = ipc_data_write_start(vfs_phone, newc, newc_len);
+        if (rc != EOK) {
+                async_wait_for(req, NULL);
+                async_serialize_end();
+                futex_up(&vfs_phone_futex);
+                free(olda);
+                free(newa);
+                return (int) rc;
+        }
+        async_wait_for(req, &rc);
+        async_serialize_end();
+        futex_up(&vfs_phone_futex);
+        free(olda);
+        free(newa);
+        return rc;
+}
+
 int chdir(const char *path)
 {