zig

commit cd7e2bf57a4da6965df9a2d8662a9b95f63cf595 (tree)
parent ebc3773542ef2bccedd268cfa42ee2cdd529210a
Author: David CARLIER <devnexen@gmail.com>
Date:   Wed, 10 May 2023 13:42:29 +0100

std.c: adding freebsd's ioctl base operands.

Diffstat:
M
lib/std/c/freebsd.zig
 | 
28
++++++++++++++++++++++++++++

1 file changed, 28 insertions(+), 0 deletions(-)
diff --git a/lib/std/c/freebsd.zig b/lib/std/c/freebsd.zig
@@ -2607,3 +2607,31 @@ pub const domainset = extern struct {
 
 pub extern "c" fn cpuset_getdomain(level: cpulevel_t, which: cpuwhich_t, id: id_t, len: usize, domain: *domainset_t, r: *c_int) c_int;
 pub extern "c" fn cpuset_setdomain(level: cpulevel_t, which: cpuwhich_t, id: id_t, len: usize, domain: *const domainset_t, r: c_int) c_int;
+
+const ioctl_cmd = enum(u32) {
+    VOID = 0x20000000,
+    OUT = 0x40000000,
+    IN = 0x80000000,
+    INOUT = ioctl_cmd.IN | ioctl_cmd.OUT,
+    DIRMASK = ioctl_cmd.VOID | ioctl_cmd.IN | ioctl_cmd.OUT,
+};
+
+fn ioImpl(cmd: ioctl_cmd, op: u8, nr: u8, comptime IT: type) u32 {
+    return @bitCast(u32, @enumToInt(cmd) | @intCast(u32, @truncate(u8, @sizeOf(IT))) << 16 | @intCast(u32, op) << 8 | nr);
+}
+
+pub fn IO(op: u8, nr: u8) u32 {
+    return ioImpl(ioctl_cmd.VOID, op, nr, 0);
+}
+
+pub fn IOR(op: u8, nr: u8, comptime IT: type) u32 {
+    return ioImpl(ioctl_cmd.OUT, op, nr, @sizeOf(IT));
+}
+
+pub fn IOW(op: u8, nr: u8, comptime IT: type) u32 {
+    return ioImpl(ioctl_cmd.IN, op, nr, @sizeOf(IT));
+}
+
+pub fn IOWR(op: u8, nr: u8, comptime IT: type) u32 {
+    return ioImpl(ioctl_cmd.INOUT, op, nr, @sizeOf(IT));
+}