Changeset 4ecc35a for libcfa/src/concurrency/io

Timestamp:

Mar 21, 2022, 1:28:59 PM (3 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, ast-experimental, enum, master, pthread-emulation, qualifiedEnum

Children:

dbe2533

Parents:

98d1b90

Message:

Added spin lock to io drain.
last step before completion fairness

Location:

libcfa/src/concurrency/io

Files:

• setup.cfa (modified) (1 diff)
• types.hfa (modified) (1 diff)

libcfa/src/concurrency/io/setup.cfa

@@ -214 +214 @@
 
                 // completion queue
+                cq.lock      = 0;
                 cq.head      = (volatile __u32 *)(((intptr_t)cq.ring_ptr) + params.cq_off.head);
                 cq.tail      = (volatile __u32 *)(((intptr_t)cq.ring_ptr) + params.cq_off.tail);

libcfa/src/concurrency/io/types.hfa

@@ -78 +78 @@
 
         struct __cmp_ring_t {
+                volatile bool lock;
+
                 // Head and tail of the ring
                 volatile __u32 * head;