[done] Gestion com plane 2-sides : envoi des données - [todo] gestion tampon + update avec flags
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@ -52,7 +52,7 @@
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#define maxHostLen 64
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#define maxHostLen 64
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#define maxPortLen 6
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#define maxPortLen 6
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#define SOCK_TIMEOUT 2 // 2sec timeout
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#define SOCK_TIMEOUT 3 // 3sec timeout (1+ temps refresh plane)
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struct context{
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struct context{
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@ -47,14 +47,15 @@ int multicastPlanes(struct middleware_arg* arg){
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/* (1) Envoi socket de communication (TCP)
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/* (1) Envoi socket de communication (TCP)
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---------------------------------------------------------*/
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---------------------------------------------------------*/
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/* 1. Si on veut un port de communicatin */
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/* 1. Si flag manquant -> on quitte */
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if( request.flags&BINDHEAD_SCK ){
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if( !(request.flags&BINDHEAD_TCP) )
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return -1;
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strcpy(request.addr, SERV_HOST);
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strcpy(request.addr, SERV_HOST);
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request.port = TCP_LIST;
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request.port = TCP_LIST;
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}
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/* [2] Envoi de la réponse
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/* [2] Envoi de la réponse
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=========================================================*/
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=========================================================*/
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/* 1. On sérialise la réponse */
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/* 1. On sérialise la réponse */
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@ -32,6 +32,8 @@
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#define MCST_HOST "224.0.0.1" // adresse groupe multicast UDP
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#define MCST_HOST "224.0.0.1" // adresse groupe multicast UDP
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#define MCST_PORT 4444 // port multicast UDP
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#define MCST_PORT 4444 // port multicast UDP
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#define SOCK_TIMEOUT 3
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#define MAX_BUF_LEN 512
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#define MAX_BUF_LEN 512
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@ -7,6 +7,7 @@ int UDP_SOCKET(int* pSocket, const char* pAddr, const int pPort, struct sockaddr
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/* [0] Initialisation des variables
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/* [0] Initialisation des variables
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=========================================================*/
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=========================================================*/
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*pSocket = -1;
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*pSocket = -1;
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struct timeval timeout;
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/* [1] Création de la socket
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/* [1] Création de la socket
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@ -18,6 +19,15 @@ int UDP_SOCKET(int* pSocket, const char* pAddr, const int pPort, struct sockaddr
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if( *pSocket < 0 )
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if( *pSocket < 0 )
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return -1;
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return -1;
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/* 3. Timeout */
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timeout.tv_sec = SOCK_TIMEOUT;
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timeout.tv_usec = 0;
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if( setsockopt(*pSocket, SOL_SOCKET, SO_RCVTIMEO|SO_SNDTIMEO, (char*) &timeout, sizeof(struct timeval) ) < 0 ){
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close(*pSocket);
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return -1;
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}
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/* [2] On définit les infos de la socket
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/* [2] On définit les infos de la socket
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=========================================================*/
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=========================================================*/
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@ -29,10 +29,8 @@ int open_communication(){
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/* 0. Initialisation des variables */
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/* 0. Initialisation des variables */
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struct sockaddr_in udp, tcp; // données des sockets
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struct sockaddr_in udp, tcp; // données des sockets
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char buffer[MAX_BUF_LEN] = {0}; // buffer
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char buffer[MAX_BUF_LEN] = {0}; // buffer
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unsigned short serverPort; // port TCP donné par requête multicast UDP
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char serverAddr[INET_ADDRSTRLEN+1]; // adresse TCP donné par requête multicast UDP
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int status;
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int status;
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const int REQ_SIZE = sizeof(char)*INET_ADDRSTRLEN+sizeof(unsigned short);
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struct bind_header request;
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/* [1] Socket Multicast UDP
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/* [1] Socket Multicast UDP
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=========================================================*/
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=========================================================*/
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@ -48,10 +46,15 @@ int open_communication(){
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---------------------------------------------------------*/
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---------------------------------------------------------*/
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/* 1. Construction séquence d'initialisation */
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/* 1. Construction séquence d'initialisation */
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// memcpy(buffer, numero_vol, sizeof(char)*6);
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// memcpy(buffer, numero_vol, sizeof(char)*6);
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strcpy(buffer, "\003000.000.000.000\x01\x00");
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request.flags = BINDHEAD_TCP;
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strcpy(request.addr, "000.000.000.000");
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request.port = 0;
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memcpy(buffer+sizeof(char)*0, &request.flags, sizeof(char));
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memcpy(buffer+sizeof(char)*1, &request.addr, sizeof(char)*INET_ADDRSTRLEN);
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memcpy(buffer+sizeof(char)*(1+INET_ADDRSTRLEN), &request.port, sizeof(unsigned short));
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/* 2. Envoi séquence */
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/* 2. Envoi séquence */
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if( sendto(mcast_socket, buffer, REQ_SIZE+1, 0, (struct sockaddr*) &udp, sizeof(struct sockaddr_in)) < 0 ){
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if( sendto(mcast_socket, buffer, BINDHDR_LEN/sizeof(char) +1, 0, (struct sockaddr*) &udp, sizeof(struct sockaddr_in)) < 0 ){
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close(mcast_socket);
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close(mcast_socket);
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return 0;
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return 0;
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}
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}
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@ -69,16 +72,19 @@ int open_communication(){
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}
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}
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/* 3. Vérification taille */
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/* 3. Vérification taille */
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if( status < REQ_SIZE ){
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if( status < BINDHDR_LEN ){
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close(mcast_socket);
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close(mcast_socket);
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return 0;
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return 0;
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}
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}
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/* 4. On récupère les données */
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/* 4. On récupère les données */
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memcpy(serverAddr, buffer+sizeof(char), sizeof(char)*INET_ADDRSTRLEN );
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bzero(&request, sizeof(struct bind_header));
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memcpy(&serverPort, buffer+sizeof(char)*(INET_ADDRSTRLEN+1), sizeof(unsigned short) );
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printf("bind_header{flags = %d; addr = %s; port = %d;}\n\n", (int) buffer[0], serverAddr, serverPort);
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memcpy(&request.addr, buffer, sizeof(char) );
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memcpy(&request.addr, buffer+sizeof(char), sizeof(char)*INET_ADDRSTRLEN );
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memcpy(&request.port, buffer+sizeof(char)*(1+INET_ADDRSTRLEN), sizeof(unsigned short) );
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printf("bind_header{flags = %d; addr = %s; port = %d;}\n\n", request.flags, request.addr, request.port);
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@ -91,7 +97,7 @@ int open_communication(){
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/* (1) Création socket TCP + connection
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/* (1) Création socket TCP + connection
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---------------------------------------------------------*/
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---------------------------------------------------------*/
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/* 1. Création socket TCP + connection serveur */
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/* 1. Création socket TCP + connection serveur */
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if( TCP_CONNECT(&commu_socket, serverAddr, serverPort, &tcp) < 0 )
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if( TCP_CONNECT(&commu_socket, request.addr, request.port, &tcp) < 0 )
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return 0;
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return 0;
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return 1;
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return 1;
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@ -109,10 +115,46 @@ void send_data(){
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/* [0] Initialisation des variables
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/* [0] Initialisation des variables
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=========================================================*/
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=========================================================*/
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char buffer[MAX_BUF_LEN] = {0};
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struct plane_data request;
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int read;
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/* [1] Envoi des caractéristiques
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=========================================================*/
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/* 1. Vérification socket */
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if( commu_socket < 0 )
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return;
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/* 2. création objet */
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strcpy(request.code, numero_vol);
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request.x = crd.x;
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request.y = crd.y;
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request.z = crd.z;
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request.cap = ctrl.cap;
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request.spd = ctrl.speed;
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/* 3. Copie buffer */
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strcpy(buffer, request.code);
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memcpy(buffer+sizeof(char)*0+sizeof(int)*0, &request.code, sizeof(char)*6 );
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memcpy(buffer+sizeof(char)*6+sizeof(int)*0, &request.x, sizeof(int) );
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memcpy(buffer+sizeof(char)*6+sizeof(int)*1, &request.y, sizeof(int) );
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memcpy(buffer+sizeof(char)*6+sizeof(int)*2, &request.z, sizeof(int) );
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memcpy(buffer+sizeof(char)*6+sizeof(int)*3, &request.cap, sizeof(int) );
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memcpy(buffer+sizeof(char)*6+sizeof(int)*4, &request.spd, sizeof(int) );
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read = send(commu_socket, buffer, PLANE_DATA_LEN/sizeof(char) + 1, 0);
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if( read < 0 ){
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printf("Erreur d'envoi\n");
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return;
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}
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/* 4. Récupération réponse */
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//TODO: recv()
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/* 5. Gestion mise à jour */
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//TODO: update_cap etc avec flags
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}
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}
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@ -139,6 +181,9 @@ void init_plane(){
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// formée de 2 lettres puis 3 chiffres
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// formée de 2 lettres puis 3 chiffres
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numero_vol[0] = (random() % 26) + 'A';
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numero_vol[0] = (random() % 26) + 'A';
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numero_vol[1] = (random() % 26) + 'A';
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numero_vol[1] = (random() % 26) + 'A';
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numero_vol[2] = (random() % 10) + '0';
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numero_vol[3] = (random() % 10) + '0';
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numero_vol[4] = (random() % 10) + '0';
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numero_vol[5] = 0;
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numero_vol[5] = 0;
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}
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}
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@ -39,4 +39,25 @@
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int speed;
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int speed;
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};
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};
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#define PLANE_DATA_LEN (sizeof(char)*6+sizeof(int)*5)
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struct plane_data{
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char code[6];
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int x;
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int y;
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int z;
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int cap;
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int spd;
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};
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#define BINDHDR_LEN ( sizeof(char)*(1+INET_ADDRSTRLEN)+sizeof(unsigned short) )
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#define BINDHEAD_CTL 0x01 // is command terminal (else: view terminal)
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#define BINDHEAD_SCK 0x02 // ask for com socket
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#define BINDHEAD_TCP 0x04 // ask TCP instead of UDP
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struct bind_header{
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char flags;
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char addr[INET_ADDRSTRLEN];
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unsigned short port;
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};
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#endif
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#endif
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