Changeset 20ab637 for libcfa/src/concurrency/iocall.cfa

Timestamp:

Jul 10, 2020, 2:17:49 PM (4 years ago)

Author:

Thierry Delisle <tdelisle@…>

Branches:

ADT, arm-eh, ast-experimental, enum, forall-pointer-decay, jacob/cs343-translation, master, new-ast, new-ast-unique-expr, pthread-emulation, qualifiedEnum

Children:

59f74a2

Parents:

3a32b3a

Message:

Added quick and dirty support for fixed files reads.
Added support for kernel side polling.

File:

• libcfa/src/concurrency/iocall.cfa (modified) (1 diff)

libcfa/src/concurrency/iocall.cfa

@@ -128 +128 @@
                 #endif
         }
+
+        ssize_t cfa_preadv2_fixed(int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags) {
+                #if !defined(HAVE_LINUX_IO_URING_H) || !defined(IORING_OP_READV)
+                        return preadv2(fd, iov, iovcnt, offset, flags);
+                #else
+                        __submit_prelude
+
+                        (*sqe){ IORING_OP_READV, fd, iov, iovcnt, offset };
+                        sqe->flags |= IOSQE_FIXED_FILE;
+
+                        __submit_wait
+                #endif
+        }
 #endif