Changeset a4eb8a60 in mainline for uspace/srv/vfs/vfs_read.c

Timestamp:

2007-12-22T22:58:57Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

5c786d1

Parents:

c9957b6

Message:

VFS work.
Foundation for TMPFS-side VFS_READ and fixes in VFS-side VFS_READ.

File:

• uspace/srv/vfs/vfs_read.c (modified) (5 diffs)

uspace/srv/vfs/vfs_read.c

@@ -50 +50 @@
          * interleave and a file cannot be closed while it is being read).
          *
-         * Additional synchronization needs to be added once table table of
+         * Additional synchronization needs to be added once the table of
          * open files supports parallel access!
          */
@@ -61 +61 @@
 
         int fd = IPC_GET_ARG1(*request);
+        size_t size = IPC_GET_ARG2(*request);
 
         /*
@@ -89 +90 @@
          */
         aid_t msg;
-        msg = async_send_3(fs_phone, VFS_READ, file->node->dev_handle,
-            file->node->index, file->pos, NULL);
+        ipc_call_t answer;
+        msg = async_send_4(fs_phone, VFS_READ, file->node->dev_handle,
+            file->node->index, file->pos, size, &answer);
         
         /*
@@ -106 +108 @@
         ipcarg_t rc;
         async_wait_for(msg, &rc);
+        size_t bytes = IPC_GET_ARG1(answer);
 
         /*
@@ -111 +114 @@
          * return to the client.
          */
-        ipc_answer_0(rid, rc);
+        ipc_answer_1(rid, rc, bytes);
 }