修复部分bug

c/network/swap.c

@@ -8,27 +8,46 @@
 #include <linux/memfd.h>
 #include <sys/syscall.h>
 #include <sys/mman.h>
-#include "network.h"
+#include <fcntl.h>
 
-int make_swap(void *message)
+#include "network.h"
+#include "swap.h"
+
+
+
+int make_swap(rbt_msg *swap)
 {
-    rbt_msg *msg = (rbt_msg*)message;
-            printf("gid=%s uid=%s nick=%s raw=%s type=%c\n",
-               msg->gid, msg->uid, msg->nickname,
-               msg->raw_message, msg->message_type);
+   swap->state = NEWMSG;
+   sem_post(&swap->status);
 }
 
 int create_swap(const char *name)
 {
    int fd = memfd_create(name,0);
+
    //申请共享内存
    ftruncate(fd, sizeof(rbt_msg));
+   //调整关闭策略
+   int flags = fcntl(fd, F_GETFD);
+   flags &= ~FD_CLOEXEC;
+   fcntl(fd, F_SETFD, flags);
    //调整大小
    rbt_msg *init_msg = (rbt_msg*)mmap(NULL, sizeof(rbt_msg), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
    char buf[MAX_MESSAGE_BUF] = {'\0'};
+   //初始化
    memcpy(init_msg->raw_message,buf,MAX_MESSAGE_BUF);
    memcpy(init_msg->nickname,buf,64);
-   munmap((void*)init_msg,sizeof(rbt_msg));
-   //初始化
+   sem_init(&init_msg->status,1,1);
+   init_msg->raw_message[0] = '\0';
+   init_msg->state = FREE;
+   init_msg->uid[0] = '\0';
+   munmap((void*)init_msg,sizeof(rbt_msg)); 
    return fd;
+}
+
+int close_swap(int shmid,rbt_msg *swap)
+{
+   swap->state = QUITPLG;//置退出态
+   sem_post(&swap->status);//发送信号量
+   close(shmid);//关闭共享内存
 }