c - 奇怪的 printf/pthread 错误？

Question

所以我正在开发一个线程项目，并且正在测试我的一个文件，确保结构和字段获得正确的值。我正在运行这个函数:

struct ReportQueue {
   sem_t count;
   pthread_mutex_t mutexAdd;
   ReportList *RQList;
};

ReportQueue *RQCreate() {
   ReportQueue *rq;

   printf("RQCreate() called\n");
   rq = calloc(1, sizeof(ReportQueue));
   sem_init(&rq->count, 0, 0);
   pthread_mutex_init(&rq->mutexAdd, NULL);
   rq->RQList = NULL;
   return rq;
}

有了这个主要:

int main() {
   ReportQueue *rQueue;
   Report report;

   rQueue = RQCreate();
   printf("SemCount: |%d| RQList: |%d| MutexAdd |%d|\n", rQueue->count, rQueue->RQList, rQueue->mutexAdd);
   printf("SemCount: |%d|\n", rQueue->count);
   printf("RQList: |%d|\n", rQueue->RQList);
   printf("MutexAdd: |%d|\n", rQueue->mutexAdd);

   return;
}

我得到这个输出:

RQCreate() called
SemCount: |0| RQList: |128| MutexAdd |0|
SemCount: |0|
RQList: |0|
MutexAdd: |0|

这对我来说没有任何意义。 “RQList”的值不应该根据我如何打印它而改变？我做错了什么？

Answer 1

一个工作正常的最小示例...这不是答案，但表明一切似乎都很好

+ 它不适合评论:D

#include <stdlib.h>
#include <stdio.h>
#include <semaphore.h>
#include <pthread.h>

struct ReportQueue {
   sem_t count;
   pthread_mutex_t mutexAdd;
   int *RQList;
};

struct ReportQueue *RQCreate() {
   struct ReportQueue *rq;

   printf("RQCreate() called\n");
   rq = calloc(1, sizeof(struct ReportQueue));
   sem_init(&rq->count, 0, 0);
   pthread_mutex_init(&rq->mutexAdd, NULL);
   rq->RQList = NULL;
   return rq;
}

int main() {
   struct ReportQueue *rQueue;

   rQueue = RQCreate();
   printf("SemCount: |%d| RQList: |%d| \n", rQueue->count, (int)rQueue->RQList);
   printf("SemCount: |%d|\n", rQueue->count);
   printf("RQList: |%d|\n", (int)rQueue->RQList);

   return 1;
}