#include <linux/resource.h>
#include <unistd.h>
#include <signal.h>
pid_t wd_pid;
char line[8];
FILE *cmd;
int pri;
/*创建管道并创建shell子进程，执行pidof bspInit 0命令：‘bspInit 0’是进程名*/
cmd = popen("pidof bspInit 0", "r");
/*从文件流中获取信息(此处为pid)，放入line*/
fgets(line, 8, cmd);
/*将pid由字符转换为整形*/
wd_pid = strtoul(line, NULL, 10);
/*关闭管道*/
pclose(cmd);
/*获取进程优先级*/
pri = getpriority(PRIO_PROCESS, wd_pid);
printf("bspInit 0 : pid=%d pri=%d", wd_pid, pri);