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darwin: wrap mach_port_insert_right kernel call

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This commit is contained in:
Jakub Konka 2022-12-11 18:27:10 +01:00
parent 2a65971eb0
commit 402dfb5fd3
2 changed files with 55 additions and 0 deletions
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39
lib/std/c/darwin.zig
View File

@ -164,6 +164,7 @@ pub const mach_vm_address_t = usize;
pub const vm_offset_t = usize;
pub const mach_vm_size_t = u64;
pub const mach_msg_type_number_t = natural_t;
pub const mach_msg_type_name_t = u32;
pub const mach_port_right_t = natural_t;
pub const ipc_space_t = mach_port_t;
pub const ipc_space_port_t = ipc_space_t;
@ -180,6 +181,38 @@ pub const MACH_PORT_RIGHT = enum(mach_port_right_t) {
NUMBER = 6,
};
pub const MACH_MSG_TYPE = enum(mach_msg_type_name_t) {
/// Must hold receive right
MOVE_RECEIVE = 16,
/// Must hold send right(s)
MOVE_SEND = 17,
/// Must hold sendonce right
MOVE_SEND_ONCE = 18,
/// Must hold send right(s)
COPY_SEND = 19,
/// Must hold receive right
MAKE_SEND = 20,
/// Must hold receive right
MAKE_SEND_ONCE = 21,
/// NOT VALID
COPY_RECEIVE = 22,
/// Must hold receive right
DISPOSE_RECEIVE = 24,
/// Must hold send right(s)
DISPOSE_SEND = 25,
/// Must hold sendonce right
DISPOSE_SEND_ONCE = 26,
};
extern "c" var mach_task_self_: mach_port_t;
pub fn mach_task_self() callconv(.C) mach_port_t {
return mach_task_self_;
@ -527,6 +560,12 @@ pub extern "c" fn mach_port_allocate(
name: *mach_port_name_t,
) kern_return_t;
pub extern "c" fn mach_port_deallocate(task: ipc_space_t, name: mach_port_name_t) kern_return_t;
pub extern "c" fn mach_port_insert_right(
task: ipc_space_t,
name: mach_port_name_t,
poly: mach_port_t,
poly_poly: mach_msg_type_name_t,
) kern_return_t;
pub extern "c" fn task_info(
target_task: task_name_t,

16
lib/std/os/darwin.zig
View File

@ -44,6 +44,22 @@ const mach_task = if (builtin.target.isDarwin()) struct {
_ = std.c.getKernError(std.c.mach_port_deallocate(self.port, port.port));
}
pub fn insertRight(self: MachTask, port: MachTask, msg: std.c.MACH_MSG_TYPE) !void {
switch (std.c.getKernError(std.c.mach_port_insert_right(
self.port,
port.port,
port.port,
@enumToInt(msg),
))) {
.SUCCESS => return,
.FAILURE => return error.PermissionDenied,
else => |err| {
log.err("mach_port_insert_right kernel call failed with error code: {s}", .{@tagName(err)});
return error.Unexpected;
},
}
}
pub const RegionInfo = struct {
pub const Tag = enum {
basic,