zig

commit d966fe63190de2992d6a7985bc492b9d9699d253 (tree)
parent 21c81360ba40d645768d061723522116b6408d48
Author: Joran Dirk Greef <joran@ronomon.com>
Date:   Thu, 17 Sep 2020 19:53:34 +0200

Add IORING_SQ_CQ_OVERFLOW to std/os/bits/linux.zig

Diffstat:
M
lib/std/io_uring.zig
 | 
5
+----
M
lib/std/os/bits/linux.zig
 | 
3
+++

2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/lib/std/io_uring.zig b/lib/std/io_uring.zig
@@ -38,9 +38,6 @@ pub const io_uring_sqe = extern struct {
     options: [2]u64 = [2]u64{ 0, 0 }
 };
 
-// TODO Add to zig/std/os/bits/linux.zig:
-const IORING_SQ_CQ_OVERFLOW = 1 << 1;
-
 comptime {
     assert(@sizeOf(io_uring_params) == 120);
     assert(@sizeOf(io_uring_sqe) == 64);
@@ -315,7 +312,7 @@ pub const IO_Uring = struct {
 
     // Matches the implementation of cq_ring_needs_flush() in liburing.
     fn cq_ring_needs_flush(self: *IO_Uring) bool {
-        return (@atomicLoad(u32, self.sq.flags, .Unordered) & IORING_SQ_CQ_OVERFLOW) != 0;
+        return (@atomicLoad(u32, self.sq.flags, .Unordered) & linux.IORING_SQ_CQ_OVERFLOW) != 0;
     }
 
     /// For advanced use cases only that implement custom completion queue methods.
diff --git a/lib/std/os/bits/linux.zig b/lib/std/os/bits/linux.zig
@@ -1251,6 +1251,9 @@ pub const io_sqring_offsets = extern struct {
 /// needs io_uring_enter wakeup
 pub const IORING_SQ_NEED_WAKEUP = 1 << 0;
 
+/// kernel has cqes waiting beyond the cq ring
+pub const IORING_SQ_CQ_OVERFLOW = 1 << 1;
+
 pub const io_cqring_offsets = extern struct {
     head: u32,
     tail: u32,