Rust内存分析与调试工具rstack-self的使用,高效检测堆栈信息和内存泄漏
Rust内存分析与调试工具rstack-self的使用,高效检测堆栈信息和内存泄漏
安装
在项目目录中运行以下Cargo命令:
cargo add rstack-self
或在Cargo.toml中添加以下行:
rstack-self = "0.3.0"
基本使用
rstack-self是一个用于分析Rust程序堆栈信息和检测内存泄漏的工具。它提供了一种简单的方式来获取当前线程的堆栈跟踪信息。
获取堆栈信息示例
use rstack_self::trace;
fn main() {
// 获取当前线程的堆栈跟踪
let trace = trace().unwrap();
// 打印堆栈帧
for frame in trace.frames() {
println!("{:?}", frame);
}
}
检测内存泄漏示例
use std::mem::ManuallyDrop;
use rstack_self::MemoryUsage;
fn main() {
// 创建一个故意泄漏的内存
let leaked = ManuallyDrop::new(vec![0u8; 1024]);
// 获取当前内存使用情况
let usage = MemoryUsage::current().unwrap();
println!("Allocated memory: {} bytes", usage.allocated);
println!("Leaked memory: {} bytes", usage.leaked);
}
高级功能
跨线程堆栈跟踪
use std::thread;
use rstack_self::{Thread, trace_thread};
fn main() {
let handle = thread::spawn(|| {
// 子线程中的一些工作
thread::sleep(std::time::Duration::from_secs(1));
});
// 获取子线程的堆栈跟踪
let trace = trace_thread(handle.thread().id()).unwrap();
for frame in trace.frames() {
println!("{:?}", frame);
}
handle.join().unwrap();
}
内存泄漏检测集成测试
#[cfg(test)]
mod tests {
use super::*;
use rstack_self::MemoryLeakTest;
#[test]
fn test_no_memory_leak() {
MemoryLeakTest::default()
.run(|| {
// 测试代码
let _v = vec![0u8; 1024];
})
.assert_no_leaks();
}
}
完整示例demo
下面是一个结合了rstack-self主要功能的完整示例:
use std::{mem::ManuallyDrop, thread, time::Duration};
use rstack_self::{trace, trace_thread, MemoryUsage, MemoryLeakTest};
fn recursive_function(depth: usize) {
if depth > 0 {
recursive_function(depth - 1);
} else {
// 获取并打印当前堆栈
let trace = trace().unwrap();
println!("Current stack trace:");
for frame in trace.frames() {
println!(" {:?}", frame);
}
}
}
fn main() {
// 1. 演示堆栈跟踪
println!("=== Stack Trace Demo ===");
recursive_function(3);
// 2. 演示内存泄漏检测
println!("\n=== Memory Leak Detection ===");
let leaked = ManuallyDrop::new(vec![0u8; 2048]); // 故意泄漏2KB内存
let usage = MemoryUsage::current().unwrap();
println!("Current memory usage:");
println!(" Allocated: {} bytes", usage.allocated);
println!(" Leaked: {} bytes", usage.leaked);
// 3. 演示跨线程堆栈跟踪
println!("\n=== Cross-Thread Stack Trace ===");
let handle = thread::spawn(|| {
thread::sleep(Duration::from_millis(500));
recursive_function(2);
});
println!("Child thread stack trace:");
let child_trace = trace_thread(handle.thread().id()).unwrap();
for frame in child_trace.frames() {
println!(" {:?}", frame);
}
handle.join().unwrap();
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_memory_leak_detection() {
MemoryLeakTest::default()
.run(|| {
// 正常分配但不泄漏的内存
let _non_leaked = vec![0u8; 1024];
// 故意泄漏的内存
let _leaked = ManuallyDrop::new(vec![0u8; 512]);
})
.assert_no_leaks(); // 这个测试会失败,因为我们确实泄漏了内存
}
}
许可证
rstack-self采用MIT或Apache-2.0双重许可。
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