34 lines
907 B
C
34 lines
907 B
C
#define _GNU_SOURCE
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#include <stdio.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <linux/memfd.h>
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#include <sys/syscall.h>
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#include <sys/mman.h>
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#include "network.h"
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int make_swap(void *message)
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{
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rbt_msg *msg = (rbt_msg*)message;
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printf("gid=%s uid=%s nick=%s raw=%s type=%c\n",
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msg->gid, msg->uid, msg->nickname,
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msg->raw_message, msg->message_type);
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}
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int create_swap(const char *name)
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{
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int fd = memfd_create(name,0);
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//申请共享内存
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ftruncate(fd, sizeof(rbt_msg));
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//调整大小
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rbt_msg *init_msg = (rbt_msg*)mmap(NULL, sizeof(rbt_msg), PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
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char buf[MAX_MESSAGE_BUF] = {'\0'};
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memcpy(init_msg->raw_message,buf,MAX_MESSAGE_BUF);
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memcpy(init_msg->nickname,buf,64);
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munmap((void*)init_msg,sizeof(rbt_msg));
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//初始化
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return fd;
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} |