os: Add message passing syscalls (join, leave, pass, receive)

1 files changed, 20 insertions, 0 deletions

diff --git a/src/os.zig b/src/os.zig
index f7e6ce6..8f5aa38 100644
--- a/src/os.zig
+++ b/src/os.zig
@@ -97,3 +97,23 @@ pub fn devicesByKind(kind: hwinfo.DevKind, devices: []hwinfo.Dev) !usize {
     if (result.error_code != 0) return SyscallError.Kernel;
     return result.value;
 }
+
+pub fn join(channel: usize) !void {
+    const result = ecall(100008, .{channel});
+    if (result.error_code != 0) return SyscallError.Kernel;
+}
+
+pub fn leave(channel: usize) void {
+    _ = ecall(100009, .{channel});
+}
+
+pub fn pass(channel: usize, receiver: u16, identify: bool, bytes: []const u8) !void {
+    const result = ecall(100010, .{ channel, receiver, identify, bytes.ptr, bytes.len });
+    if (result.error_code != 0) return SyscallError.Kernel;
+}
+
+pub fn receive(channel: usize, sender: ?*u16, buffer: []u8) !usize {
+    const result = ecall(100011, .{ channel, sender, buffer.ptr, buffer.len });
+    if (result.error_code != 0) return SyscallError.Kernel;
+    return result.value;
+}