guangxuan guangxuanliu

## log.cpp
#include <iostream>
#include <sstream>
#include <fstream>
using namespace std;

int main()
{
    std::ofstream outfile;
    outfile.open("example.txt", std::ios_base::app); // 以追加模式打开文件

## deadlock.md

      
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              Last active
              November 6, 2022 13:05
            
              
                gdb调试死锁技巧
              
          
    死锁问题调试技巧：

自动方式


下载deadlock.py

https://github.com/facebook/folly/blob/main/folly/experimental/gdb/deadlock.py

用gdb附加到死锁的程序


## getpid.sh
xprop _NET_WM_PID | cut -d' ' -f3

## buffer.cpp
#define m 16
char buffer[m] = {0};
int index = 0;

void fillBuffer(const char *buf, int n)
{
    if(index + n <= m)
    {
        memcpy(buffer + index, buf, n);
        index += n;

## pstack
#!/bin/sh
if test $# -ne 1; then
    echo "Usage: `basename $0 .sh` <process-id>" 1>&2
    exit 1
fi

if test ! -r /proc/$1; then
    echo "Process $1 not found." 1>&2
    exit 1
fi
	#include <iostream>
	#include <sstream>
	#include <fstream>
	using namespace std;

	int main()
	{
	std::ofstream outfile;
	outfile.open("example.txt", std::ios_base::app); // 以追加模式打开文件
	#define m 16
	char buffer[m] = {0};
	int index = 0;

	void fillBuffer(const char *buf, int n)
	{
	if(index + n <= m)
	{
	memcpy(buffer + index, buf, n);
	index += n;
	#!/bin/sh
	if test $# -ne 1; then
	echo "Usage: `basename $0 .sh` <process-id>" 1>&2
	exit 1
	fi

	if test ! -r /proc/$1; then
	echo "Process $1 not found." 1>&2
	exit 1
	fi