int main(int argc, char **argv){
int i;
extern int process0(int n,int num);
if (argc != 2){
fprintf(stderr, "usage: ring ringsize\nring size must be at least 2\n");
return 1;
}
int num = atoi(argv[1]);
if (num < 2){
fprintf(stderr, "usage: ring ringsize\nring size must be at least 2\n");
return 1;
}
int ppid,pid,status,result;
for (i = 0;i < (num -1); i ++){
if ((pid = fork()) == -1) {
perror("fork");
exit(1);
}
}
process0(0,num);
return 0;
}
int main(int argc, char *argv[]) {
Tower *towers;
int discsCount, towersCount, destTower;
/* initialize MPI */
MPI_Init(&argc, &argv);
/* find out process id */
MPI_Comm_rank(MPI_COMM_WORLD, &process_id);
/* find out number of processes */
MPI_Comm_size(MPI_COMM_WORLD, &processors);
printf("\nHello world from process %i", process_id);
if (process_id == 0) {
printf("Hello, I'm the master!");
// I'm the starting process
// I have to read the data and let others take portions of it
static const char filename[] = "enter.txt";
static const char discDelimiter[] = ",";
FILE *file = fopen(filename, "r");
if (file != NULL) {
char line[128]; /* max line size */
int i;
fgets(line, sizeof line, file);
sscanf(line, "%i", &discsCount);
fgets(line, sizeof line, file);
sscanf(line, "%i", &towersCount);
fgets(line, sizeof line, file);
sscanf(line, "%i", &destTower);
printf("Towers of Hanoi: %i towers, %i discs, %i dest tower\n",
towersCount, discsCount, destTower);
towers = (Tower*) malloc (towersCount * sizeof(Tower));
for (i = 0; i < towersCount; i++) {
char towerLine[128];
Tower tower = { 0, NULL };
char *disc;
tower.number = i + 1;
if (fgets(towerLine, sizeof towerLine, file) == NULL) {
return 1; /* bad enter */
}
printf("Created new tower: %i\n", tower.number);
disc = strtok(towerLine, discDelimiter);
while (1) {
int discSize = 0;
if (disc == NULL) {
break;
}
sscanf(disc, "%i", &discSize);
if (discSize == 0) {
break;
}
insertDics(discSize, &tower);
printf("Inserted disc of size: %i to tower %i\n", discSize,
tower.number);
disc = strtok(NULL, discDelimiter);
}
towers[i] = tower;
}
fclose(file);
// initial work split
int* inputData;
inputData = (int*) malloc(3 * sizeof(*inputData));
inputData[0] = towersCount;
inputData[1] = discsCount;
inputData[2] = destTower;
// send to all processors (except master) the basic calculation parameters
for (i = 1; i < processors; i++) {
MPI_Send(inputData, sizeof(*inputData), MPI_INT, i, MSG_INIT,
MPI_COMM_WORLD);
}
free(inputData);
//printState(towers, towersCount);
process0(towers, towersCount, discsCount, destTower);
//freeTowers(towers, &towersCount);
} else {
perror("enter.txt could not be opened");
return 1;
}
} else {
// other processes (process_id > 0)
}
run(process_id, processors);
}
int main(int argc, char *argv[]) {
struct sockaddr_in ProxyAddr;
struct sockaddr_in BrowserAddr;
struct hostent *HostInfo;
int opt;
int httpNumber = 1;
int portNumber;
int bl = 1; /* bind()失敗対策 */
int clientSocket;
int browserlength;
char ipaddress[15];
if (argc != 4) {
fprintf(stderr, "usage: ./proxy [-0][-1] [ipaddress] [port]\n");
exit(1);
}
/* オプションの取得*/
if((opt = getopt(argc,argv,"01")) != -1) {
switch(opt) {
case '0':
printf("Select HTTP/1.0\n");
httpNumber = 0;
break;
case '1':
printf("Select HTTP/1.1\n");
httpNumber = 1;
break;
default:
printf("Please Select one of [-0][-1]\n");
exit(1);
break;
}
}
strcpy(ipaddress, argv[2]);
portNumber = atoi(argv[3]);
printf("Port Number: %d\n", portNumber);
printf("IP address : %s\n", ipaddress);
/* SIGINTにSigHandler()を，SIGCHLDにCatchChild()を登録 */
signal(SIGINT, SigHandler);
signal(SIGCHLD, CatchChild);
/* ブラウザとの通信用のソケットを作成 */
if ((ProxySocket = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
fprintf(stderr, "Failed to make a Proxysocket!\n");
exit(1);
}
/* ホスト名を得る */
/*if ((HostInfo = gethostbyname("localhost")) == NULL) {*/
if ((HostInfo = gethostbyname(ipaddress)) == NULL) {
fprintf(stderr, "Failed to find host!\n");
exit(1);
}
ProxyAddr.sin_family = AF_INET;
ProxyAddr.sin_port = htons(portNumber);
memcpy((char *)&ProxyAddr.sin_addr, (char *)HostInfo->h_addr_list[0], HostInfo->h_length);
/* bind()失敗対策 */
setsockopt(ProxySocket, SOL_SOCKET, SO_REUSEADDR, (const char *)&bl, sizeof(bl));
/* IPアドレスとポート番号の設定 */
if (bind(ProxySocket, (struct sockaddr *)&ProxyAddr, sizeof(ProxyAddr)) == -1) {
fprintf(stderr, "Failed to assign a name to the Proxysocket!\n");
exit(1);
}
/* listen */
if (listen(ProxySocket, 5) == -1) {
fprintf(stderr, "Failed to listen ProxySocket!\n");
exit(1);
}
/* ブラウザから要求があったらプロセスを作成するループ */
while (1) {
int pid; /* プロセスの作成 */
struct timeval waitval; /* タイムアウト */
fd_set rfds; /* select()に必要 */
/* 監視対象をセット */
FD_ZERO(&rfds);
FD_SET(ProxySocket, &rfds);
/* 監視のタイムアウトの時間を設定 */
waitval.tv_sec = 5;
waitval.tv_usec = 0;
if (select(ProxySocket+1, &rfds, NULL, NULL, &waitval) <= 0) {
continue; /* select()に失敗するとwhile文をやり直す */
}
/* clientSocketをプロセスに渡す */
if (FD_ISSET(ProxySocket, &rfds)) {
/* ブラウザからの接続要求をaccept() */
browserlength = sizeof(BrowserAddr);
if ((clientSocket = accept(ProxySocket, (struct sockaddr *)&BrowserAddr, (socklen_t *)&browserlength)) == -1) {
fprintf(stderr, "Failed to accept clientSocket!\n");
exit(1);
}
pid = fork(); /* プロセスの作成 */
if (pid == 0) {
#if defined(DEBUG)
printf("子プロセス開始.\n");
#endif
/* 子プロセス */
if(httpNumber == 0) process0(clientSocket);
if(httpNumber == 1) process1(clientSocket, ipaddress);
} else if (pid > 0) { /* fork()失敗 */
close(clientSocket);
} else { /* アクセプトソケットクローズ */
close(clientSocket);
#if defined(DEBUG)
printf("ブラウザのソケットを閉じました.\n");
#endif
}
/* 親プロセス処理なし */
}
}
return 0;
}
