Changeset bf75e3cb in mainline for kernel/generic/include/ipc/ipc.h

Timestamp:

2011-01-26T20:22:21Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

4e7d3dd, 5b7a107, 875c629

Parents:

a0ce870 (diff), 4fe94c66 (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 lp:~jakub/helenos/fs.

Highlights of the merge:

• the kernel signs each call by the sender's task hash

• async framework tracks and reference counts connections from the same client task

• VFS associates the table of open files with the client task rather than with a single connection

• VFS libc client code now uses async sessions to support parallel requests

• vfs_file_get() now explicitly adds a reference on the file structure and the newly introduced vfs_file_put() drops it

File:

• kernel/generic/include/ipc/ipc.h (modified) (2 diffs)

kernel/generic/include/ipc/ipc.h

@@ -165 +165 @@
  *                       error is sent back to caller. Otherwise 
  *                       the call is accepted and the response is sent back.
- *                     - the allocated phoneid is passed to userspace 
+ *                     - the hash of the client task is passed to userspace
+ *                       (on the receiving side) as ARG4 of the call.
+ *                     - the hash of the allocated phone is passed to userspace
  *                       (on the receiving side) as ARG5 of the call.
  *
@@ -319 +321 @@
 typedef struct {
         sysarg_t args[IPC_CALL_LEN];
+        /** Task which made or forwarded the call with IPC_FF_ROUTE_FROM_ME. */
+        struct task *task;
+        /** Phone which made or last masqueraded this call. */
         phone_t *phone;
 } ipc_data_t;