1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 #![allow(non_camel_case_types)]
18 use libc::{c_int, c_void};
20 pub type mx_handle_t = i32;
21 pub type mx_vaddr_t = usize;
22 pub type mx_rights_t = u32;
23 pub type mx_status_t = i32;
25 pub type mx_size_t = usize;
26 pub type mx_ssize_t = isize;
28 pub const MX_HANDLE_INVALID: mx_handle_t = 0;
30 pub type mx_time_t = u64;
31 pub const MX_TIME_INFINITE : mx_time_t = u64::MAX;
33 pub type mx_signals_t = u32;
35 pub const MX_OBJECT_SIGNAL_3 : mx_signals_t = 1 << 3;
37 pub const MX_TASK_TERMINATED : mx_signals_t = MX_OBJECT_SIGNAL_3;
39 pub const MX_RIGHT_SAME_RIGHTS : mx_rights_t = 1 << 31;
41 pub type mx_object_info_topic_t = u32;
43 pub const MX_INFO_PROCESS : mx_object_info_topic_t = 3;
45 pub const MX_HND_TYPE_JOB: u32 = 6;
47 pub fn mx_cvt<T>(t: T) -> io::Result<T> where T: TryInto<mx_status_t>+Copy {
48 if let Ok(status) = TryInto::try_into(t) {
50 Err(io::Error::from_raw_os_error(status))
55 Err(io::Error::last_os_error())
59 // Safe wrapper around mx_handle_t
65 pub fn new(raw: mx_handle_t) -> Handle {
71 pub fn raw(&self) -> mx_handle_t {
76 impl Drop for Handle {
78 unsafe { mx_cvt(mx_handle_close(self.raw)).expect("Failed to close mx_handle_t"); }
82 // Common MX_INFO header
85 pub struct mx_info_header_t {
86 pub topic: u32, // identifies the info struct
87 pub avail_topic_size: u16, // “native” size of the struct
88 pub topic_size: u16, // size of the returned struct (<=topic_size)
89 pub avail_count: u32, // number of records the kernel has
90 pub count: u32, // number of records returned (limited by buffer size)
95 pub struct mx_record_process_t {
96 pub return_code: c_int,
99 // Returned for topic MX_INFO_PROCESS
102 pub struct mx_info_process_t {
103 pub hdr: mx_info_header_t,
104 pub rec: mx_record_process_t,
108 pub fn mx_task_kill(handle: mx_handle_t) -> mx_status_t;
110 pub fn mx_handle_close(handle: mx_handle_t) -> mx_status_t;
112 pub fn mx_handle_duplicate(handle: mx_handle_t, rights: mx_rights_t,
113 out: *const mx_handle_t) -> mx_handle_t;
115 pub fn mx_handle_wait_one(handle: mx_handle_t, signals: mx_signals_t, timeout: mx_time_t,
116 pending: *mut mx_signals_t) -> mx_status_t;
118 pub fn mx_object_get_info(handle: mx_handle_t, topic: u32, buffer: *mut c_void,
119 buffer_size: mx_size_t, actual_size: *mut mx_size_t,
120 avail: *mut mx_size_t) -> mx_status_t;
123 // Handle Info entries associate a type and optional
124 // argument with each handle included in the process
125 // arguments message.
126 pub fn mx_hnd_info(hnd_type: u32, arg: u32) -> u32 {
127 (hnd_type & 0xFFFF) | ((arg & 0xFFFF) << 16)
131 pub fn mxio_get_startup_handle(id: u32) -> mx_handle_t;
134 // From `enum special_handles` in system/ulib/launchpad/launchpad.c
135 #[allow(unused)] pub const HND_LOADER_SVC: usize = 0;
137 #[allow(unused)] pub const HND_SPECIAL_COUNT: usize = 2;
140 pub struct launchpad_t {
148 handles: *mut mx_handle_t,
149 handles_info: *mut u32,
155 vdso_base: mx_vaddr_t,
159 special_handles: [mx_handle_t; HND_SPECIAL_COUNT],
160 loader_message: bool,
164 pub fn launchpad_create(job: mx_handle_t, name: *const c_char,
165 lp: *mut *mut launchpad_t) -> mx_status_t;
167 pub fn launchpad_start(lp: *mut launchpad_t) -> mx_status_t;
169 pub fn launchpad_destroy(lp: *mut launchpad_t);
171 pub fn launchpad_arguments(lp: *mut launchpad_t, argc: c_int,
172 argv: *const *const c_char) -> mx_status_t;
174 pub fn launchpad_environ(lp: *mut launchpad_t, envp: *const *const c_char) -> mx_status_t;
176 pub fn launchpad_clone_mxio_root(lp: *mut launchpad_t) -> mx_status_t;
178 pub fn launchpad_clone_mxio_cwd(lp: *mut launchpad_t) -> mx_status_t;
180 pub fn launchpad_clone_fd(lp: *mut launchpad_t, fd: c_int, target_fd: c_int) -> mx_status_t;
182 pub fn launchpad_transfer_fd(lp: *mut launchpad_t, fd: c_int, target_fd: c_int) -> mx_status_t;
184 pub fn launchpad_elf_load(lp: *mut launchpad_t, vmo: mx_handle_t) -> mx_status_t;
186 pub fn launchpad_add_vdso_vmo(lp: *mut launchpad_t) -> mx_status_t;
188 pub fn launchpad_load_vdso(lp: *mut launchpad_t, vmo: mx_handle_t) -> mx_status_t;
190 pub fn launchpad_vmo_from_file(filename: *const c_char) -> mx_handle_t;