osal-rs 0.5.0

Operating System Abstraction Layer for Rust with support for FreeRTOS and POSIX
Documentation 
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

/***************************************************************************
 *
 * osal-rs
 * Copyright (C) 2026 Antonio Salsi <passy.linux@zresa.it>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see <https://www.gnu.org/licenses/>.
 *
 ***************************************************************************/

use core::fmt::{Debug, Display};
use core::ops::Deref;
use core::ptr::null;

use crate::posix::types::{SemaphoreHandle, UBaseType};
use crate::traits::{SemaphoreFn, ToTick};
use crate::utils::{OsalRsBool, Result};

pub struct Semaphore(SemaphoreHandle);

unsafe impl Send for Semaphore {}
unsafe impl Sync for Semaphore {}

impl Semaphore {
	pub fn new(_max_count: UBaseType, _initial_count: UBaseType) -> Result<Self> {
		Ok(Self(null()))
	}

	pub fn new_with_count(_initial_count: UBaseType) -> Result<Self> {
		Ok(Self(null()))
	}
}

impl SemaphoreFn for Semaphore {
	fn wait(&self, _ticks_to_wait: impl ToTick) -> OsalRsBool {
		OsalRsBool::True
	}

	fn wait_from_isr(&self) -> OsalRsBool {
		OsalRsBool::True
	}

	fn signal(&self) -> OsalRsBool {
		OsalRsBool::True
	}

	fn signal_from_isr(&self) -> OsalRsBool {
		OsalRsBool::True
	}

	fn delete(&mut self) {
		self.0 = null();
	}
}

impl Drop for Semaphore {
	fn drop(&mut self) {
		self.0 = null();
	}
}

impl Deref for Semaphore {
	type Target = SemaphoreHandle;

	fn deref(&self) -> &Self::Target {
		&self.0
	}
}

impl Debug for Semaphore {
	fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
		f.debug_struct("Semaphore")
			.field("handle", &self.0)
			.finish()
	}
}

impl Display for Semaphore {
	fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
		write!(f, "Semaphore {{ handle: {:?} }}", self.0)
	}
}