福清网站商城建设,soho 网站建设,学网站建设基础,百度识图查另一半情头嵌入式linux中很多内存资源都比较小#xff0c;所以很多程序中在malloc时就需要提前知道内存剩余的大小 下面是一种调用 sysinfo接口来实现。
示例代码如下#xff1a;
#include stdio.h
#include linux/kernel.h
#include linux/unistd.h
#includ…嵌入式linux中很多内存资源都比较小所以很多程序中在malloc时就需要提前知道内存剩余的大小 下面是一种调用 sysinfo接口来实现。
示例代码如下
#include stdio.h
#include linux/kernel.h
#include linux/unistd.h
#include sys/sysinfo.hint main(void)
{struct sysinfo s_info;int error sysinfo(s_info);printf(error0: %d, total: %lu free: %lu \n, error, s_info.totalram, s_info.freeram);//func_call1(pcModelName);error sysinfo(s_info);printf(error1: %d, total: %lu free: %lu \n, error, s_info.totalram, s_info.freeram);int msg[500];int i 0;for(i 0; i 1; i){//func_call2(pcSrcFile, msg);error sysinfo(s_info);printf(error2: %d, total: %lu free: %lu \n, error, s_info.totalram, s_info.freeram);//func_call3(pcSrcFile, msg);error sysinfo(s_info);printf(error3: %d, total: %lu free: %lu \n, error, s_info.totalram, s_info.freeram);}//func_call4();error sysinfo(s_info);printf(error4: %d, total: %lu free: %lu \n, error, s_info.totalram, s_info.freeram);
}
