diff --git a/lift_server.c b/lift_server.c
deleted file mode 100644
index 94e976f219a60502333b1cd97f63804e32505ca5..0000000000000000000000000000000000000000
--- a/lift_server.c
+++ /dev/null
@@ -1,410 +0,0 @@
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <time.h>
-#include <pthread.h>
-#include <arpa/inet.h>
-#include <sys/socket.h>
-
-#define BUFFER_MAX 3
-#define DIRECTION_MAX 45
-
-#define IN 0
-#define OUT 1
-#define PWM 0
-
-#define LOW 0
-#define HIGH 1
-#define VALUE_MAX 256
-
-#define POUT 23
-#define PIN 24
-
-#define PINM 17
-#define PINP 26 //Press sensor's GPIO PIN number
-
-int mot_person = 0;
-int pre_person = 0;
-double distance = 0;
-int personCheck[3] = {0,0,0};
-pthread_t thread1, thread2, thread3, thread4;
-
-//소켓연결
-int serv_sock, clnt_sock = -1;
-struct sockaddr_in serv_addr, clnt_addr;
-socklen_t clnt_addr_size;
-char msg[2];
-
-void error_handling(char *message){
- fputs(message, stderr);
- fputc('\n',stderr);
- exit(1);
-}
-
-static int GPIOExport(int pin){
-#define BUFFER_MAX 3
- char buffer[BUFFER_MAX];
- ssize_t bytes_written;
- int fd;
-
- fd = open("/sys/class/gpio/export", O_WRONLY); //경로를 열어서
- if(-1 == fd){
- fprintf(stderr, "Failed to open export for writing!\n");
- return(-1);
- }// 잘 못 열면(경로가 잘못됐거나 값이 없거나 .. etc) => 오류 msg 출력
-
- bytes_written = snprintf(buffer, BUFFER_MAX, "%d", pin); //파라미터로 입력받은 pin 넘버 buffer에 넘겨서 bytes_written 변수에 저장
- write(fd, buffer, bytes_written); //fd에 buffer값 넣어서 fd(/sys/class/gpio/export/)에 write => 결과 : /sys/class/gpio/gpio(PIN_number)가 생성됨
- close(fd);
- return(0);
-} // 해당 함수는 /sys/class/gpio/export에 GPIO Pin Number을 Write하는 함수입니다
-
-
-static int GPIOUnexport(int pin){
- char buffer[BUFFER_MAX];
- ssize_t bytes_written;
- int fd;
-
- fd = open("/sys/class/gpio/unexport", O_WRONLY);
- if(-1 == fd){
- fprintf(stderr, "Failed to open unexport for writing!\n");
- return(-1);
- }
- bytes_written = snprintf(buffer, BUFFER_MAX, "%d", pin);
- write(fd, buffer, bytes_written);
- close(fd);
- return(0);
-}// 해당 함수는 /sys/class/gpio/unexport에 GPIO Pin Number을 Write하는 함수입니다. //logic은 GPIOexport함수와 같습니다.
-
-static int GPIODirection(int pin, int dir){
- static const char s_directions_str[] = "in\0out";
-
- //char path[DIRECTION_MAX] = "/sys/class/gpio/gpio24/direction";
- char path[DIRECTION_MAX] = "/sys/class/gpio/gpio%d/direction"; //경로 지정
- int fd;
- snprintf(path, DIRECTION_MAX, "/sys/class/gpio/gpio%d/direction", pin); // %d에 pin 넘버 넘겨받음
- fd = open(path, O_WRONLY);
- if(-1 == fd){
- fprintf(stderr, "Failed to open gpio direction for writing!\n");
- return(-1);
- }
- if(-1 == write(fd, &s_directions_str[IN == dir ? 0 : 3], IN == dir ? 2 : 3)){ // fd에 IN 또는 OUT 값 입력
- fprintf(stderr, "Failed to set direction!\n");
- close(fd);
- return(-1);
- }
- close(fd);
- return(0);
-}// 해당 함수는 /sys/class/gpio/gpio(pin번호)/direction에 OUT인지, IN인지 write하는 함수
-
-static int GPIORead(int pin){
- char path[VALUE_MAX];
- char value_str[3];
- int fd;
-
- snprintf(path, VALUE_MAX, "/sys/class/gpio/gpio%d/value", pin);
- fd = open(path, O_RDONLY);
- if(-1 == fd){
- fprintf(stderr, "Failed to open gpio value for reading!\n");
- return(-1);
- }
- if(-1 == read(fd, value_str, 3)){
- fprintf(stderr, "Failed to read value!\n");
- close(fd);
- return(-1);
- }
- close(fd);
- return(atoi(value_str));
-}// 해당 함수는 /sys/class/gpio/gpio(pin번호)/direction에 OUT인지, IN인지 write하는 함수
-
-static int GPIOWrite(int pin, int value){
- static const char s_values_str[] = "01";//0또는 1로 입력받음
-
- char path[VALUE_MAX];
- int fd;
- snprintf(path, VALUE_MAX, "/sys/class/gpio/gpio%d/value", pin); //pin 번호를 입력받아서 path에 저장
- fd = open(path, O_WRONLY); //fd에 입력받은 path값을 이용해 파일 엶.
- if(-1 == fd){
- fprintf(stderr, "Failed to open gpio value for writing!\n"); // 접근 오류 -> 메세지 출력
- return(-1);
- }
- if(1 != write(fd, &s_values_str[LOW == value ? 0 : 1], 1)){ //0또는 1 값 입력, 그런데 만약 실패하면 오류메세지 출력
- fprintf(stderr, "Failed to write value!\n");
- close(fd);
- return(-1);
- }
- close(fd);
- return(0);
-}// 해당 함수는 /sys/class/gpio/gpio(pin번호)/value에 (0또는 1) 값을 쓰는 함수) //ex. value/0 => led가 켜짐
-
-
-void* motion() {
-
- int repeat = 1000;
- /*clock_t start_t, end_t;
- clock_t n_per_st, n_per_en;
- int cnt=0;
- double time;*/
- int flag_detect=0;
-
- if(-1 == GPIOExport(PINM)){
- printf("gpio export err\n");
- }
-
- usleep(100000);
-
- if(-1 == GPIODirection(PINM, IN)){
- printf("gpio direction err\n");
- exit(2);
- }
-
- //GPIOWrite(PINM, 0);
- usleep(10000);
-
- do{
-
- /*if(-1 == GPIOWrite(PINM,1)){
- printf("gpio write/trigger erro\n");
- exit(3);
- }
- usleep(100);*/
- /*GPIOWrite(PINM,0);*/
- printf("GPIORead's number : %d\n", GPIORead(PINM));
- if(GPIORead(PINM)==0){
- flag_detect++;
- printf("flag_detection: %d\n", flag_detect);
- if(flag_detect==10){
- printf("Don't exist person!\n");
- mot_person=0;
- personCheck[0]=mot_person;
- printf("personCheck[0]=%d!\n", personCheck[0]);
- }
- }else{
- flag_detect=0;
- printf("!!Exist person!\n");
- mot_person=1;
- personCheck[0]=mot_person;
- printf("personCheck[0]=%d!\n", personCheck[0]);
- }
-
- usleep(2000000);
- }
- while(repeat--);
-
- if(-1 == GPIOUnexport(PINM))
- exit(4);
-
- printf("complete\n");
- exit(0);
-
-}
-
-void* microwave() {
-
- int repeat = 100;
- clock_t start_t, end_t;
- double wave_time;
- int cnt;
- int wav_person;
-
- if(-1 == GPIOExport(POUT) || -1 == GPIOExport(PIN)){
- printf("gpio export err\n");
- }
-
- usleep(10000); //10000 -> 1000
-
- if(-1 == GPIODirection(POUT, OUT) || -1 == GPIODirection(PIN, IN)){
- printf("gpio direction err\n");
- exit(2);
- }
-
- GPIOWrite(POUT, 0);
- usleep(1000);
-
- do{
- if(-1 == GPIOWrite(POUT,1)){
- printf("gpio write/trigger erro\n");
- exit(3);
- }
- usleep(10);
- GPIOWrite(POUT,0);
-
- while(GPIORead(PIN)==0){
- start_t = clock();
- }
- while(GPIORead(PIN)==1){
- end_t = clock();
- }
- wave_time = (double)(end_t-start_t)/CLOCKS_PER_SEC;
- double speedOfSound = 34000.0; // cm/s
- double distanceInCm = (wave_time * speedOfSound) /2;
- //double distanceInMm = distanceInCm * 10;
- printf("time : %.4lf\n", wave_time);
- printf("distance : %.4lfcm\n", distanceInCm);
- //printf("distance : %.4lfmm\n", distanceInMm);
-
- if(distanceInCm <= 10){
- cnt++;
- printf("cnt:%d\n",cnt);
- if(cnt==10){
- printf("person exists\n");
- wav_person=1; //person exists
- personCheck[1]=wav_person;
- printf("personCheck[1]=%d!\n", personCheck[1]);
- }
-
- }else{
- cnt=0;
- printf("person not exists!\n");
- wav_person=0;
- personCheck[1]=wav_person;
- printf("personCheck[1]=%d!\n", personCheck[1]);
-
- }
-
- usleep(2000000); //2000000 -> 2000
- }
- while(repeat--);
-
- if(-1 == GPIOUnexport(POUT)||-1==GPIOUnexport(PIN))
- exit(4);
-
- printf("complete\n");
- exit(0);
-
-}
-
-void* press()
-{
- int repeat = 1000;
-
- if(-1 == GPIOExport(PINP)){
- printf("gpio export err\n");
- }
-
- usleep(100000);
-
- if(-1 == GPIODirection(PINP, IN)){
- printf("gpio direction err\n");
- exit(2);
- }
-
- //GPIOWrite(PIN, 0);
- usleep(10000);
-
- do{
-
- /*if(-1 == GPIOWrite(PIN,1)){
- printf("gpio write/trigger erro\n");
- return(3);
- }
- usleep(100);*/
- /*GPIOWrite(PIN,0);*/
- if(GPIORead(PINP)==0){
- printf("Pressure is not Detected!\n");
- pre_person=0;
- personCheck[2]=pre_person;
- printf("personCheck[2]=%d!\n", personCheck[2]);
-
- }else{
- printf("Presure is detected!\n");
- pre_person=1;
- personCheck[2]=pre_person;
- printf("personCheck[2]=%d!\n", personCheck[2]);
-
- }
-
- usleep(2000000); //
- }
- while(repeat--);
-
- if(-1 == GPIOUnexport(PINP))
- exit(4);
-
- printf("complete\n");
- exit(0);
-}
-
-void* superviser(void * arg)
-{
-
-
- while(1) {
- sleep(1);
- // for ( int i = 0; i < 3; i++ ) {
- // printf("personCheck[%d] = %d\n",i, personCheck[i]);
- // }
-
- int existValue = 0;
- int count = 0;
- for ( int a = 0; a < 3; a++ ) {
- if ( personCheck[a] == 1 ) {
- count++;
- }
- }
-
- if ( count >=2 ) {
- existValue = 1;
- }
-
- if ( existValue == 1 ) {
- printf("supervisor detect exists\n");
- snprintf(msg, 2, "%d", existValue);
- write(clnt_sock, msg, sizeof(msg));
- printf("msg = %s\n", msg);
- }else{
- existValue = 0;
- printf("supervisor detect person not exists!\n");
- snprintf(msg, 2, "%d", existValue);
- write(clnt_sock, msg, sizeof(msg));
- printf("msg = %s\n", msg);
- }
-
- }
-}
-
-
-int main(int argc, char *argv[]) {
- pthread_create(&thread1, NULL, motion, NULL);
- pthread_create(&thread2, NULL, microwave, NULL);
- pthread_create(&thread3, NULL, press, NULL);
- pthread_create(&thread4, NULL, superviser, NULL);
-
-
- printf("success");
- if(argc!=2){
- printf("Usage: %s <port>\n", argv[0]);
- }
-
- serv_sock = socket(PF_INET, SOCK_STREAM,0);
- if(serv_sock == -1){
- error_handling("socket() error");
- }
- memset(&serv_addr, 0, sizeof(serv_addr));
- serv_addr.sin_family = AF_INET;
- serv_addr.sin_addr.s_addr=htonl(INADDR_ANY);
- serv_addr.sin_port=htons(atoi(argv[1]));
-
- if(bind(serv_sock, (struct sockaddr*) &serv_addr, sizeof(serv_addr))== -1){
- error_handling("bind() error");
- }
-
- if(listen(serv_sock, 5) == -1) error_handling("listen() error");
- if(clnt_sock < 0){
- clnt_addr_size = sizeof(clnt_addr);
- clnt_sock = accept(serv_sock, (struct sockaddr*)&clnt_addr, &clnt_addr_size);
- if(clnt_sock == -1) error_handling("accept() error");
- }
-
-
-
- pthread_join(thread1, NULL);
- pthread_join(thread2, NULL);
- pthread_join(thread3, NULL);
- pthread_join(thread4, NULL);
-
-}