在Class中,当我尝试为这样的方法创建一个线程时:
void *RippleBrush::paintRippleOnce(void){
while(1){
for (int j = 0; j < height; j ++) {
for(int i = 0; i < width; i ++){
int point = j * height + i;
data[point].a += ripple->rippleNow[point];
ripple->CaculateNextRipple();
}
}
}
}
void RippleBrush::paintRipple(){
pthread_t ctrl_thread;
if(pthread_create(&ctrl_thread, NULL, RippleBrush::paintRippleOnce, NULL) != 0){
perror("pthread_create");
exit(1);
}
}
显示错误:没有匹配函数来调用&#39; pthread_create&#39;。
如何在一个方法中为同一个类中的另一个方法创建一个线程?
答案 0 :(得分:0)
#include <pthread.h>
int pthread_create(pthread_t *thread, const pthread_attr_t *attr,
void *(*start_routine) (void *), void *arg);
编译并与-pthread
。
答案 1 :(得分:0)
我认为你最好让你的真正的工作者作为静态函数:
void *RippleBrush::paintRippleOnce(void){
while(1){
for (int j = 0; j < height; j ++) {
for(int i = 0; i < width; i ++){
int point = j * height + i;
data[point].a += ripple->rippleNow[point];
ripple->CaculateNextRipple();
}
}
}
}
void RippleBrush::paintRipple(){
pthread_t ctrl_thread;
if(pthread_create(&ctrl_thread,NULL, RippleBrush::paintRippleOnceWrapper,this)!=0){
perror("pthread_create");
exit(1);
}
}
static void* RippleBrush::paintRippleOnceWrapper(void *args) {
RippleBrush* brush= (RippleBrush*)args; // or dynamic_cast as you like
brush->paintRippleOnce();
}