1 // Copyright 2012 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.
12 * Low-level bindings to the libuv library.
14 * This module contains a set of direct, 'bare-metal' wrappers around
17 * We're not bothering yet to redefine uv's structs as Rust structs
18 * because they are quite large and change often between versions.
19 * The maintenance burden is just too high. Instead we use the uv's
20 * `uv_handle_size` and `uv_req_size` to find the correct size of the
21 * structs and allocate them on the heap. This can be revisited later.
23 * There are also a collection of helper functions to ease interacting
24 * with the low-level API.
26 * As new functionality, existant in uv.h, is added to the rust stdlib,
27 * the mappings should be added in this module.
30 #[allow(non_camel_case_types)]; // C types
33 use libc::{size_t, c_int, c_uint, c_void, c_char, uintptr_t};
34 use libc::{malloc, free};
41 pub static UNKNOWN: c_int = -1;
42 pub static OK: c_int = 0;
43 pub static EOF: c_int = 1;
44 pub static EADDRINFO: c_int = 2;
45 pub static EACCES: c_int = 3;
46 pub static ECONNREFUSED: c_int = 12;
47 pub static ECONNRESET: c_int = 13;
48 pub static EPIPE: c_int = 36;
60 pub type uv_handle_t = c_void;
61 pub type uv_loop_t = c_void;
62 pub type uv_idle_t = c_void;
63 pub type uv_tcp_t = c_void;
64 pub type uv_udp_t = c_void;
65 pub type uv_connect_t = c_void;
66 pub type uv_write_t = c_void;
67 pub type uv_async_t = c_void;
68 pub type uv_timer_t = c_void;
69 pub type uv_stream_t = c_void;
70 pub type uv_fs_t = c_void;
71 pub type uv_udp_send_t = c_void;
73 pub type uv_idle_cb = *u8;
74 pub type uv_alloc_cb = *u8;
75 pub type uv_udp_send_cb = *u8;
76 pub type uv_udp_recv_cb = *u8;
78 pub type sockaddr = c_void;
79 pub type sockaddr_in = c_void;
80 pub type sockaddr_in6 = c_void;
81 pub type sockaddr_storage = c_void;
84 pub enum uv_handle_type {
107 pub enum uv_req_type {
121 pub enum uv_membership {
126 pub unsafe fn malloc_handle(handle: uv_handle_type) -> *c_void {
127 assert!(handle != UV_UNKNOWN_HANDLE && handle != UV_HANDLE_TYPE_MAX);
128 let size = rust_uv_handle_size(handle as uint);
129 let p = malloc(size);
130 assert!(p.is_not_null());
134 pub unsafe fn free_handle(v: *c_void) {
138 pub unsafe fn malloc_req(req: uv_req_type) -> *c_void {
139 assert!(req != UV_UNKNOWN_REQ && req != UV_REQ_TYPE_MAX);
140 let size = rust_uv_req_size(req as uint);
141 let p = malloc(size);
142 assert!(p.is_not_null());
146 pub unsafe fn free_req(v: *c_void) {
151 fn handle_sanity_check() {
153 assert_eq!(UV_HANDLE_TYPE_MAX as uint, rust_uv_handle_type_max());
158 fn request_sanity_check() {
160 assert_eq!(UV_REQ_TYPE_MAX as uint, rust_uv_req_type_max());
164 pub unsafe fn loop_new() -> *c_void {
165 return rust_uv_loop_new();
168 pub unsafe fn loop_delete(loop_handle: *c_void) {
169 rust_uv_loop_delete(loop_handle);
172 pub unsafe fn run(loop_handle: *c_void) {
173 rust_uv_run(loop_handle);
176 pub unsafe fn close<T>(handle: *T, cb: *u8) {
177 rust_uv_close(handle as *c_void, cb);
180 pub unsafe fn walk(loop_handle: *c_void, cb: *u8, arg: *c_void) {
181 rust_uv_walk(loop_handle, cb, arg);
184 pub unsafe fn idle_new() -> *uv_idle_t {
188 pub unsafe fn idle_delete(handle: *uv_idle_t) {
189 rust_uv_idle_delete(handle)
192 pub unsafe fn idle_init(loop_handle: *uv_loop_t, handle: *uv_idle_t) -> c_int {
193 rust_uv_idle_init(loop_handle, handle)
196 pub unsafe fn idle_start(handle: *uv_idle_t, cb: uv_idle_cb) -> c_int {
197 rust_uv_idle_start(handle, cb)
200 pub unsafe fn idle_stop(handle: *uv_idle_t) -> c_int {
201 rust_uv_idle_stop(handle)
204 pub unsafe fn udp_init(loop_handle: *uv_loop_t, handle: *uv_udp_t) -> c_int {
205 return rust_uv_udp_init(loop_handle, handle);
208 pub unsafe fn udp_bind(server: *uv_udp_t, addr: *sockaddr_in, flags: c_uint) -> c_int {
209 return rust_uv_udp_bind(server, addr, flags);
212 pub unsafe fn udp_bind6(server: *uv_udp_t, addr: *sockaddr_in6, flags: c_uint) -> c_int {
213 return rust_uv_udp_bind6(server, addr, flags);
216 pub unsafe fn udp_send<T>(req: *uv_udp_send_t, handle: *T, buf_in: &[uv_buf_t],
217 addr: *sockaddr_in, cb: uv_udp_send_cb) -> c_int {
218 let buf_ptr = vec::raw::to_ptr(buf_in);
219 let buf_cnt = buf_in.len() as i32;
220 return rust_uv_udp_send(req, handle as *c_void, buf_ptr, buf_cnt, addr, cb);
223 pub unsafe fn udp_send6<T>(req: *uv_udp_send_t, handle: *T, buf_in: &[uv_buf_t],
224 addr: *sockaddr_in6, cb: uv_udp_send_cb) -> c_int {
225 let buf_ptr = vec::raw::to_ptr(buf_in);
226 let buf_cnt = buf_in.len() as i32;
227 return rust_uv_udp_send6(req, handle as *c_void, buf_ptr, buf_cnt, addr, cb);
230 pub unsafe fn udp_recv_start(server: *uv_udp_t, on_alloc: uv_alloc_cb,
231 on_recv: uv_udp_recv_cb) -> c_int {
232 return rust_uv_udp_recv_start(server, on_alloc, on_recv);
235 pub unsafe fn udp_recv_stop(server: *uv_udp_t) -> c_int {
236 return rust_uv_udp_recv_stop(server);
239 pub unsafe fn get_udp_handle_from_send_req(send_req: *uv_udp_send_t) -> *uv_udp_t {
240 return rust_uv_get_udp_handle_from_send_req(send_req);
243 pub unsafe fn udp_get_sockname(handle: *uv_udp_t, name: *sockaddr_storage) -> c_int {
244 return rust_uv_udp_getsockname(handle, name);
247 pub unsafe fn udp_set_membership(handle: *uv_udp_t, multicast_addr: *c_char,
248 interface_addr: *c_char, membership: uv_membership) -> c_int {
249 return rust_uv_udp_set_membership(handle, multicast_addr, interface_addr, membership as c_int);
252 pub unsafe fn udp_set_multicast_loop(handle: *uv_udp_t, on: c_int) -> c_int {
253 return rust_uv_udp_set_multicast_loop(handle, on);
256 pub unsafe fn udp_set_multicast_ttl(handle: *uv_udp_t, ttl: c_int) -> c_int {
257 return rust_uv_udp_set_multicast_ttl(handle, ttl);
260 pub unsafe fn udp_set_ttl(handle: *uv_udp_t, ttl: c_int) -> c_int {
261 return rust_uv_udp_set_ttl(handle, ttl);
264 pub unsafe fn udp_set_broadcast(handle: *uv_udp_t, on: c_int) -> c_int {
265 return rust_uv_udp_set_broadcast(handle, on);
268 pub unsafe fn tcp_init(loop_handle: *c_void, handle: *uv_tcp_t) -> c_int {
269 return rust_uv_tcp_init(loop_handle, handle);
272 pub unsafe fn tcp_connect(connect_ptr: *uv_connect_t, tcp_handle_ptr: *uv_tcp_t,
273 addr_ptr: *sockaddr_in, after_connect_cb: *u8) -> c_int {
274 return rust_uv_tcp_connect(connect_ptr, tcp_handle_ptr, after_connect_cb, addr_ptr);
277 pub unsafe fn tcp_connect6(connect_ptr: *uv_connect_t, tcp_handle_ptr: *uv_tcp_t,
278 addr_ptr: *sockaddr_in6, after_connect_cb: *u8) -> c_int {
279 return rust_uv_tcp_connect6(connect_ptr, tcp_handle_ptr, after_connect_cb, addr_ptr);
282 pub unsafe fn tcp_bind(tcp_server_ptr: *uv_tcp_t, addr_ptr: *sockaddr_in) -> c_int {
283 return rust_uv_tcp_bind(tcp_server_ptr, addr_ptr);
286 pub unsafe fn tcp_bind6(tcp_server_ptr: *uv_tcp_t, addr_ptr: *sockaddr_in6) -> c_int {
287 return rust_uv_tcp_bind6(tcp_server_ptr, addr_ptr);
290 pub unsafe fn tcp_getpeername(tcp_handle_ptr: *uv_tcp_t, name: *sockaddr_storage) -> c_int {
291 return rust_uv_tcp_getpeername(tcp_handle_ptr, name);
294 pub unsafe fn tcp_getsockname(handle: *uv_tcp_t, name: *sockaddr_storage) -> c_int {
295 return rust_uv_tcp_getsockname(handle, name);
298 pub unsafe fn tcp_nodelay(handle: *uv_tcp_t, enable: c_int) -> c_int {
299 return rust_uv_tcp_nodelay(handle, enable);
302 pub unsafe fn tcp_keepalive(handle: *uv_tcp_t, enable: c_int, delay: c_uint) -> c_int {
303 return rust_uv_tcp_keepalive(handle, enable, delay);
306 pub unsafe fn tcp_simultaneous_accepts(handle: *uv_tcp_t, enable: c_int) -> c_int {
307 return rust_uv_tcp_simultaneous_accepts(handle, enable);
310 pub unsafe fn listen<T>(stream: *T, backlog: c_int, cb: *u8) -> c_int {
311 return rust_uv_listen(stream as *c_void, backlog, cb);
314 pub unsafe fn accept(server: *c_void, client: *c_void) -> c_int {
315 return rust_uv_accept(server as *c_void, client as *c_void);
318 pub unsafe fn write<T>(req: *uv_write_t, stream: *T, buf_in: &[uv_buf_t], cb: *u8) -> c_int {
319 let buf_ptr = vec::raw::to_ptr(buf_in);
320 let buf_cnt = buf_in.len() as i32;
321 return rust_uv_write(req as *c_void, stream as *c_void, buf_ptr, buf_cnt, cb);
323 pub unsafe fn read_start(stream: *uv_stream_t, on_alloc: uv_alloc_cb, on_read: *u8) -> c_int {
324 return rust_uv_read_start(stream as *c_void, on_alloc, on_read);
327 pub unsafe fn read_stop(stream: *uv_stream_t) -> c_int {
328 return rust_uv_read_stop(stream as *c_void);
331 pub unsafe fn last_error(loop_handle: *c_void) -> uv_err_t {
332 return rust_uv_last_error(loop_handle);
335 pub unsafe fn strerror(err: *uv_err_t) -> *c_char {
336 return rust_uv_strerror(err);
338 pub unsafe fn err_name(err: *uv_err_t) -> *c_char {
339 return rust_uv_err_name(err);
342 pub unsafe fn async_init(loop_handle: *c_void, async_handle: *uv_async_t, cb: *u8) -> c_int {
343 return rust_uv_async_init(loop_handle, async_handle, cb);
346 pub unsafe fn async_send(async_handle: *uv_async_t) {
347 return rust_uv_async_send(async_handle);
349 pub unsafe fn buf_init(input: *u8, len: uint) -> uv_buf_t {
350 let out_buf = uv_buf_t { base: ptr::null(), len: 0 as size_t };
351 let out_buf_ptr = ptr::to_unsafe_ptr(&out_buf);
352 rust_uv_buf_init(out_buf_ptr, input, len as size_t);
356 pub unsafe fn timer_init(loop_ptr: *c_void, timer_ptr: *uv_timer_t) -> c_int {
357 return rust_uv_timer_init(loop_ptr, timer_ptr);
359 pub unsafe fn timer_start(timer_ptr: *uv_timer_t, cb: *u8, timeout: u64,
360 repeat: u64) -> c_int {
361 return rust_uv_timer_start(timer_ptr, cb, timeout, repeat);
363 pub unsafe fn timer_stop(timer_ptr: *uv_timer_t) -> c_int {
364 return rust_uv_timer_stop(timer_ptr);
367 pub unsafe fn is_ip4_addr(addr: *sockaddr) -> bool {
368 match rust_uv_is_ipv4_sockaddr(addr) { 0 => false, _ => true }
371 pub unsafe fn is_ip6_addr(addr: *sockaddr) -> bool {
372 match rust_uv_is_ipv6_sockaddr(addr) { 0 => false, _ => true }
375 pub unsafe fn malloc_ip4_addr(ip: &str, port: int) -> *sockaddr_in {
376 do ip.to_c_str().with_ref |ip_buf| {
377 rust_uv_ip4_addrp(ip_buf as *u8, port as libc::c_int)
380 pub unsafe fn malloc_ip6_addr(ip: &str, port: int) -> *sockaddr_in6 {
381 do ip.to_c_str().with_ref |ip_buf| {
382 rust_uv_ip6_addrp(ip_buf as *u8, port as libc::c_int)
386 pub unsafe fn malloc_sockaddr_storage() -> *sockaddr_storage {
387 rust_uv_malloc_sockaddr_storage()
390 pub unsafe fn free_sockaddr_storage(ss: *sockaddr_storage) {
391 rust_uv_free_sockaddr_storage(ss);
394 pub unsafe fn free_ip4_addr(addr: *sockaddr_in) {
395 rust_uv_free_ip4_addr(addr);
398 pub unsafe fn free_ip6_addr(addr: *sockaddr_in6) {
399 rust_uv_free_ip6_addr(addr);
402 pub unsafe fn ip4_name(addr: *sockaddr_in, dst: *u8, size: size_t) -> c_int {
403 return rust_uv_ip4_name(addr, dst, size);
406 pub unsafe fn ip6_name(addr: *sockaddr_in6, dst: *u8, size: size_t) -> c_int {
407 return rust_uv_ip6_name(addr, dst, size);
410 pub unsafe fn ip4_port(addr: *sockaddr_in) -> c_uint {
411 return rust_uv_ip4_port(addr);
414 pub unsafe fn ip6_port(addr: *sockaddr_in6) -> c_uint {
415 return rust_uv_ip6_port(addr);
418 // data access helpers
419 pub unsafe fn get_loop_for_uv_handle<T>(handle: *T) -> *c_void {
420 return rust_uv_get_loop_for_uv_handle(handle as *c_void);
422 pub unsafe fn get_stream_handle_from_connect_req(connect: *uv_connect_t) -> *uv_stream_t {
423 return rust_uv_get_stream_handle_from_connect_req(connect);
425 pub unsafe fn get_stream_handle_from_write_req(write_req: *uv_write_t) -> *uv_stream_t {
426 return rust_uv_get_stream_handle_from_write_req(write_req);
428 pub unsafe fn get_data_for_uv_loop(loop_ptr: *c_void) -> *c_void {
429 rust_uv_get_data_for_uv_loop(loop_ptr)
431 pub unsafe fn set_data_for_uv_loop(loop_ptr: *c_void, data: *c_void) {
432 rust_uv_set_data_for_uv_loop(loop_ptr, data);
434 pub unsafe fn get_data_for_uv_handle<T>(handle: *T) -> *c_void {
435 return rust_uv_get_data_for_uv_handle(handle as *c_void);
437 pub unsafe fn set_data_for_uv_handle<T, U>(handle: *T, data: *U) {
438 rust_uv_set_data_for_uv_handle(handle as *c_void, data as *c_void);
440 pub unsafe fn get_data_for_req<T>(req: *T) -> *c_void {
441 return rust_uv_get_data_for_req(req as *c_void);
443 pub unsafe fn set_data_for_req<T, U>(req: *T, data: *U) {
444 rust_uv_set_data_for_req(req as *c_void, data as *c_void);
446 pub unsafe fn get_base_from_buf(buf: uv_buf_t) -> *u8 {
447 return rust_uv_get_base_from_buf(buf);
449 pub unsafe fn get_len_from_buf(buf: uv_buf_t) -> size_t {
450 return rust_uv_get_len_from_buf(buf);
452 pub unsafe fn get_last_err_info(uv_loop: *c_void) -> ~str {
453 let err = last_error(uv_loop);
454 let err_ptr = ptr::to_unsafe_ptr(&err);
455 let err_name = str::raw::from_c_str(err_name(err_ptr));
456 let err_msg = str::raw::from_c_str(strerror(err_ptr));
457 return fmt!("LIBUV ERROR: name: %s msg: %s",
461 pub unsafe fn get_last_err_data(uv_loop: *c_void) -> uv_err_data {
462 let err = last_error(uv_loop);
463 let err_ptr = ptr::to_unsafe_ptr(&err);
464 let err_name = str::raw::from_c_str(err_name(err_ptr));
465 let err_msg = str::raw::from_c_str(strerror(err_ptr));
466 uv_err_data { err_name: err_name, err_msg: err_msg }
469 pub struct uv_err_data {
476 fn rust_uv_handle_size(type_: uintptr_t) -> size_t;
477 fn rust_uv_req_size(type_: uintptr_t) -> size_t;
478 fn rust_uv_handle_type_max() -> uintptr_t;
479 fn rust_uv_req_type_max() -> uintptr_t;
482 fn rust_uv_loop_new() -> *c_void;
483 fn rust_uv_loop_delete(lp: *c_void);
484 fn rust_uv_run(loop_handle: *c_void);
485 fn rust_uv_close(handle: *c_void, cb: *u8);
486 fn rust_uv_walk(loop_handle: *c_void, cb: *u8, arg: *c_void);
488 fn rust_uv_idle_new() -> *uv_idle_t;
489 fn rust_uv_idle_delete(handle: *uv_idle_t);
490 fn rust_uv_idle_init(loop_handle: *uv_loop_t, handle: *uv_idle_t) -> c_int;
491 fn rust_uv_idle_start(handle: *uv_idle_t, cb: uv_idle_cb) -> c_int;
492 fn rust_uv_idle_stop(handle: *uv_idle_t) -> c_int;
494 fn rust_uv_async_send(handle: *uv_async_t);
495 fn rust_uv_async_init(loop_handle: *c_void, async_handle: *uv_async_t, cb: *u8) -> c_int;
496 fn rust_uv_tcp_init(loop_handle: *c_void, handle_ptr: *uv_tcp_t) -> c_int;
497 fn rust_uv_buf_init(out_buf: *uv_buf_t, base: *u8, len: size_t);
498 fn rust_uv_last_error(loop_handle: *c_void) -> uv_err_t;
499 fn rust_uv_strerror(err: *uv_err_t) -> *c_char;
500 fn rust_uv_err_name(err: *uv_err_t) -> *c_char;
501 fn rust_uv_ip4_addrp(ip: *u8, port: c_int) -> *sockaddr_in;
502 fn rust_uv_ip6_addrp(ip: *u8, port: c_int) -> *sockaddr_in6;
503 fn rust_uv_free_ip4_addr(addr: *sockaddr_in);
504 fn rust_uv_free_ip6_addr(addr: *sockaddr_in6);
505 fn rust_uv_ip4_name(src: *sockaddr_in, dst: *u8, size: size_t) -> c_int;
506 fn rust_uv_ip6_name(src: *sockaddr_in6, dst: *u8, size: size_t) -> c_int;
507 fn rust_uv_ip4_port(src: *sockaddr_in) -> c_uint;
508 fn rust_uv_ip6_port(src: *sockaddr_in6) -> c_uint;
509 fn rust_uv_tcp_connect(req: *uv_connect_t, handle: *uv_tcp_t, cb: *u8,
510 addr: *sockaddr_in) -> c_int;
511 fn rust_uv_tcp_bind(tcp_server: *uv_tcp_t, addr: *sockaddr_in) -> c_int;
512 fn rust_uv_tcp_connect6(req: *uv_connect_t, handle: *uv_tcp_t, cb: *u8,
513 addr: *sockaddr_in6) -> c_int;
514 fn rust_uv_tcp_bind6(tcp_server: *uv_tcp_t, addr: *sockaddr_in6) -> c_int;
515 fn rust_uv_tcp_getpeername(tcp_handle_ptr: *uv_tcp_t, name: *sockaddr_storage) -> c_int;
516 fn rust_uv_tcp_getsockname(handle: *uv_tcp_t, name: *sockaddr_storage) -> c_int;
517 fn rust_uv_tcp_nodelay(handle: *uv_tcp_t, enable: c_int) -> c_int;
518 fn rust_uv_tcp_keepalive(handle: *uv_tcp_t, enable: c_int, delay: c_uint) -> c_int;
519 fn rust_uv_tcp_simultaneous_accepts(handle: *uv_tcp_t, enable: c_int) -> c_int;
521 fn rust_uv_udp_init(loop_handle: *uv_loop_t, handle_ptr: *uv_udp_t) -> c_int;
522 fn rust_uv_udp_bind(server: *uv_udp_t, addr: *sockaddr_in, flags: c_uint) -> c_int;
523 fn rust_uv_udp_bind6(server: *uv_udp_t, addr: *sockaddr_in6, flags: c_uint) -> c_int;
524 fn rust_uv_udp_send(req: *uv_udp_send_t, handle: *uv_udp_t, buf_in: *uv_buf_t,
525 buf_cnt: c_int, addr: *sockaddr_in, cb: *u8) -> c_int;
526 fn rust_uv_udp_send6(req: *uv_udp_send_t, handle: *uv_udp_t, buf_in: *uv_buf_t,
527 buf_cnt: c_int, addr: *sockaddr_in6, cb: *u8) -> c_int;
528 fn rust_uv_udp_recv_start(server: *uv_udp_t, on_alloc: *u8, on_recv: *u8) -> c_int;
529 fn rust_uv_udp_recv_stop(server: *uv_udp_t) -> c_int;
530 fn rust_uv_get_udp_handle_from_send_req(req: *uv_udp_send_t) -> *uv_udp_t;
531 fn rust_uv_udp_getsockname(handle: *uv_udp_t, name: *sockaddr_storage) -> c_int;
532 fn rust_uv_udp_set_membership(handle: *uv_udp_t, multicast_addr: *c_char,
533 interface_addr: *c_char, membership: c_int) -> c_int;
534 fn rust_uv_udp_set_multicast_loop(handle: *uv_udp_t, on: c_int) -> c_int;
535 fn rust_uv_udp_set_multicast_ttl(handle: *uv_udp_t, ttl: c_int) -> c_int;
536 fn rust_uv_udp_set_ttl(handle: *uv_udp_t, ttl: c_int) -> c_int;
537 fn rust_uv_udp_set_broadcast(handle: *uv_udp_t, on: c_int) -> c_int;
539 fn rust_uv_is_ipv4_sockaddr(addr: *sockaddr) -> c_int;
540 fn rust_uv_is_ipv6_sockaddr(addr: *sockaddr) -> c_int;
541 fn rust_uv_malloc_sockaddr_storage() -> *sockaddr_storage;
542 fn rust_uv_free_sockaddr_storage(ss: *sockaddr_storage);
544 fn rust_uv_listen(stream: *c_void, backlog: c_int, cb: *u8) -> c_int;
545 fn rust_uv_accept(server: *c_void, client: *c_void) -> c_int;
546 fn rust_uv_write(req: *c_void, stream: *c_void, buf_in: *uv_buf_t, buf_cnt: c_int,
548 fn rust_uv_read_start(stream: *c_void, on_alloc: *u8, on_read: *u8) -> c_int;
549 fn rust_uv_read_stop(stream: *c_void) -> c_int;
550 fn rust_uv_timer_init(loop_handle: *c_void, timer_handle: *uv_timer_t) -> c_int;
551 fn rust_uv_timer_start(timer_handle: *uv_timer_t, cb: *u8, timeout: libc::uint64_t,
552 repeat: libc::uint64_t) -> c_int;
553 fn rust_uv_timer_stop(handle: *uv_timer_t) -> c_int;
555 fn rust_uv_get_stream_handle_from_connect_req(connect_req: *uv_connect_t) -> *uv_stream_t;
556 fn rust_uv_get_stream_handle_from_write_req(write_req: *uv_write_t) -> *uv_stream_t;
557 fn rust_uv_get_loop_for_uv_handle(handle: *c_void) -> *c_void;
558 fn rust_uv_get_data_for_uv_loop(loop_ptr: *c_void) -> *c_void;
559 fn rust_uv_set_data_for_uv_loop(loop_ptr: *c_void, data: *c_void);
560 fn rust_uv_get_data_for_uv_handle(handle: *c_void) -> *c_void;
561 fn rust_uv_set_data_for_uv_handle(handle: *c_void, data: *c_void);
562 fn rust_uv_get_data_for_req(req: *c_void) -> *c_void;
563 fn rust_uv_set_data_for_req(req: *c_void, data: *c_void);
564 fn rust_uv_get_base_from_buf(buf: uv_buf_t) -> *u8;
565 fn rust_uv_get_len_from_buf(buf: uv_buf_t) -> size_t;