1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// This test performs initialization similar to napi-rs.
// https://github.com/napi-rs/napi-rs/commit/a5a04a4e545f268769cc78e2bd6c45af4336aac3
use napi_sys as sys;
use std::ffi::c_char;
use std::ffi::c_void;
use std::ptr;
macro_rules! check_status_or_panic {
($code:expr, $msg:expr) => {{
let c = $code;
match c {
sys::Status::napi_ok => {}
_ => panic!($msg),
}
}};
}
fn create_custom_gc(env: sys::napi_env) {
let mut custom_gc_fn = ptr::null_mut();
check_status_or_panic!(
unsafe {
sys::napi_create_function(
env,
"custom_gc".as_ptr() as *const c_char,
9,
Some(empty),
ptr::null_mut(),
&mut custom_gc_fn,
)
},
"Create Custom GC Function in napi_register_module_v1 failed"
);
let mut async_resource_name = ptr::null_mut();
check_status_or_panic!(
unsafe {
sys::napi_create_string_utf8(
env,
"CustomGC".as_ptr() as *const c_char,
8,
&mut async_resource_name,
)
},
"Create async resource string in napi_register_module_v1 napi_register_module_v1"
);
let mut custom_gc_tsfn = ptr::null_mut();
let context = Box::into_raw(Box::new(0)) as *mut c_void;
check_status_or_panic!(
unsafe {
sys::napi_create_threadsafe_function(
env,
custom_gc_fn,
ptr::null_mut(),
async_resource_name,
0,
1,
ptr::null_mut(),
Some(custom_gc_finalize),
context,
Some(custom_gc),
&mut custom_gc_tsfn,
)
},
"Create Custom GC ThreadsafeFunction in napi_register_module_v1 failed"
);
check_status_or_panic!(
unsafe { sys::napi_unref_threadsafe_function(env, custom_gc_tsfn) },
"Unref Custom GC ThreadsafeFunction in napi_register_module_v1 failed"
);
}
unsafe extern "C" fn empty(
_env: sys::napi_env,
_info: sys::napi_callback_info,
) -> sys::napi_value {
ptr::null_mut()
}
unsafe extern "C" fn custom_gc_finalize(
_env: sys::napi_env,
_finalize_data: *mut c_void,
finalize_hint: *mut c_void,
) {
let _ = Box::from_raw(finalize_hint as *mut i32);
}
extern "C" fn custom_gc(
env: sys::napi_env,
_js_callback: sys::napi_value,
_context: *mut c_void,
data: *mut c_void,
) {
let mut ref_count = 0;
check_status_or_panic!(
unsafe {
sys::napi_reference_unref(env, data as sys::napi_ref, &mut ref_count)
},
"Failed to unref Buffer reference in Custom GC"
);
check_status_or_panic!(
unsafe { sys::napi_delete_reference(env, data as sys::napi_ref) },
"Failed to delete Buffer reference in Custom GC"
);
}
pub fn init(env: sys::napi_env, _exports: sys::napi_value) {
create_custom_gc(env);
}
|
