执行线程时更改C trhead参数

我需要动态更新线程函数的参数。函数接收3个参数,并且:

• 股票市场的结构

void * operation_executer(void *args){
   pthread_mutex_lock(&marketMutex);

   struct exec_info *execData = args;        //Parsing data from parameters
   stock_market *market = execData->market;  // Create stock market structure
   pthread_mutex_unlock(&marketMutex);

   pthread_mutex_lock(execData->exit_mutex);
   // Waits until exit flag it's 1
   while(*(execData->exit) == 0){           
        pthread_cond_wait(&exitCond, execData->exit_mutex);
   }
   pthread_mutex_unlock(execData->exit_mutex);

   pthread_mutex_lock(&marketMutex);

    struct operation op;
    while(operations_queue_empty(market->stock_operations) == 0){
            dequeue_operation(market->stock_operations, &op);
            process_operation(market, &op);
    }
    pthread_mutex_unlock(&marketMutex);
}

#include "include/concurrency_layer.h";

int main(){
   exit = 0;
    exec_info info_ex1;
    info_ex1.market = &market_madrid;
    info_ex1.exit = &exit;
    info_ex1.exit_mutex = &exit_mutex;



    pthread_create(&(tid[1]), NULL, &operation_executer, (void*) &info_ex1);

    pthread_mutex_lock(&exit_mutex);
    exit = 1;
    pthread_mutex_unlock(&exit_mutex);

    pthread_join(tid[1],&res);
}

其思想是函数必须在 exit=1