Changeset 79ae36dd in mainline for uspace/srv/bd/ata_bd/ata_bd.c

Timestamp:

2011-06-08T19:01:55Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

0eff68e

Parents:

764d71e

Message:

new async framework with integrated exchange tracking

• strict isolation between low-level IPC and high-level async framework with integrated exchange tracking
  • each IPC connection is represented by an async_sess_t structure
  • each IPC exchange is represented by an async_exch_t structure
  • exchange management is either based on atomic messages (EXCHANGE_ATOMIC), locking (EXCHANGE_SERIALIZE) or connection cloning (EXCHANGE_CLONE)
• async_obsolete: temporary compatibility layer to keep old async clients working (several pieces of code are currently broken, but only non-essential functionality)
• IPC_M_PHONE_HANGUP is now method no. 0 (for elegant boolean evaluation)
• IPC_M_DEBUG_ALL has been renamed to IPC_M_DEBUG
• IPC_M_PING has been removed (VFS protocol now has VFS_IN_PING)
• console routines in libc have been rewritten for better abstraction
• additional use for libc-private header files (FILE structure opaque to the client)
• various cstyle changes (typos, indentation, missing externs in header files, improved comments, etc.)

File:

• uspace/srv/bd/ata_bd/ata_bd.c (modified) (1 diff)

uspace/srv/bd/ata_bd/ata_bd.c

@@ -317 +317 @@
         (void) async_share_out_finalize(callid, fs_va);
 
-        while (1) {
+        while (true) {
                 callid = async_get_call(&call);
                 method = IPC_GET_IMETHOD(call);
-                switch (method) {
-                case IPC_M_PHONE_HUNGUP:
+                
+                if (!method) {
                         /* The other side has hung up. */
                         async_answer_0(callid, EOK);
                         return;
+                }
+                
+                switch (method) {
                 case BD_READ_BLOCKS:
                         ba = MERGE_LOUP32(IPC_GET_ARG1(call),