添加对Linux平台多线程单例模式调用的支持

master
ichdream 2021-09-10 15:22:43 +08:00
parent 92a17eed14
commit 2c293e434b
2 changed files with 36 additions and 9 deletions

View File

@ -13,7 +13,7 @@ public:
if (instance == NULL){
m_mutex.lock();
if (instance == NULL){
printf("创建新的实例\n");
printf("创建新的实例\n");
instance = new Singleton();
}
m_mutex.unlock();

View File

@ -1,7 +1,7 @@
#include <iostream>
#include "Singleton.h"
/*单例模式简单实现*/
/*单例模式简单实现*/
/*
int main()
{
@ -13,11 +13,12 @@ int main()
}
*/
/*非线程安全 单例模式*/
#ifdef win32
/*非线程安全 单例模式*/
#include <process.h>
#include <Windows.h>
//多线程线程数目5
//多线程线程数目5
#define THREAD_NUM 5
unsigned int __stdcall CallSingleton(void *pPM)
@ -25,7 +26,7 @@ unsigned int __stdcall CallSingleton(void *pPM)
Singleton *s = Singleton::getInstance();
int nThreadNum = *(int *)pPM;
Sleep(50);
//printf("线程编号为%d\n", nThreadNum);
//printf("线程编号为%d\n", nThreadNum);
return 0;
}
@ -34,17 +35,43 @@ int main()
{
HANDLE handle[THREAD_NUM];
//线程编号
//线程编号
int threadNum = 0;
while (threadNum < THREAD_NUM)
{
handle[threadNum] = (HANDLE)_beginthreadex(NULL, 0, CallSingleton, &threadNum, 0, NULL);
//等子线程接收到参数时主线程可能改变了这个i的值
//等子线程接收到参数时主线程可能改变了这个i的值
threadNum++;
}
//保证子线程已全部运行结束
//保证子线程已全部运行结束
WaitForMultipleObjects(THREAD_NUM, handle, TRUE, INFINITE);
system("pause");
return 0;
}
}
/* for linux platform */
#else
#define THREAD_NUM 5
#include<pthread.h>
void* callSingleton(void *pPM)
{
Singleton *s = Singleton::getInstance();
pthread_t nThreadNum = pthread_self();
// sleep(50);
printf("线程编号为%ld\n", nThreadNum);
return 0;
}
int main()
{
pthread_t threads_pool[THREAD_NUM];
int tids[THREAD_NUM];
for(int i = 0; i < THREAD_NUM; i++)
{
tids[i] = pthread_create(&threads_pool[i], NULL, callSingleton, NULL);
pthread_join(threads_pool[i], (void**)&tids[i]);
}
return 0;
}
#endif