回调函数及c调用shell命令

回调函数及c调用shell命令

#include #include #include #include void fun1(){ char a[10] = {0}; char payload[10]= {'1','2','3','4','5','6'}; memcpy(a,payload,10); char path[20] = {0}; sprintf(path,"%s",a); printf("path = %s\n",path); char cmd[255] = {0}; sprintf(cmd,"mkdir -p %s > /dev/null 2>&1 | echo ${?}",path); FILE *fp = NULL; fp = popen(cmd,"r"); fclose(fp); }void (*mediacallback)(char type, char status, char *path, void *tempdata, int arg) = NULL;void api_setTakeCallBack(void(*callback)(char type, char status, char *path, void *tempdata, int arg)) { puts("---------api_setTakeCallBack--------------"); mediacallback = callback;}int api_takePic(char type, char status, char *_pic_path, char *_name) { puts("----------api_takePic------------");}void MediaRegister(char type, char st, char *path, void *tempdata, int arg) { puts("---------MediaRegister-----------");}void fun(){ static int i = 0; i++; printf("--------i = %d---------\n",i);}void fun2(){ int i; printf("----------i = %d--------\n",i);}int main(){ // api_setTakeCallBack(MediaRegister); // api_takePic(0, 0, 0, 0); // mediacallback(1, 0, 0, 0, 0); // fun();// sleep(1); // fun(); // fun2(); unsigned short int a = 0; while (1) { /* code */ a++; printf("---------a = %d---------\n",a); }; return 0;}

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