void NetworkManager::startUp()
{
if(_server)
{
Server_Close(_server);
Server_Destroy(_server);
_server = 0;
}
_server = Server_Create();
Server_Start(_server, PORT);
state = NET_STATE_AWAIT_CLIENT;
Server_OnConnected(Server_Connected);
Server_OnRecv(Server_Recv);
}
int main (int argc, char **argv)
{
char pname[MAXPATHNAMELEN];
char *temp_buff;
int pid;
struct my_msg msg;
struct read_struct msg_read;
struct read_struct msg_write;
struct stat_struct msg_stat;
struct old_new msg_link;
struct Stat res_stat;
struct readlink msg_readlink;
struct seek_struct msg_seek;
printf("\nYFS: Started File Server");
Initialize_Server();
if (Fork() == 0) {
printf("\nCHILD\n");
pid=Exec(argv[1],argv);
printf("\nval returned by exec is %d",pid);
return 0;
}
else
printf("\nPARENT\n");
while(1)
{
pid=Receive(&msg);
//printf("\nInside while");
switch(msg.type)
{ case CREATE: //for create,type=1,data2=inode of current dir,ptr=ptr to path
{ printf("\nInside Server Create");
CopyFrom(pid,(void *)pname,msg.ptr,MAXPATHNAMELEN);
msg.data2=Server_Create(pname,msg.data2);
printf("\nInside Server Returning %d",msg.data2);
if(msg.data2!=ERROR)
msg.type=0;
else
msg.type=ERROR;
printf("\nInside Server Returning %d",msg.type);
Reply(&msg,pid);
break;
}
case OPEN: //for Open,type=1,data2=inode of current dir,ptr=ptr to path
{
CopyFrom(pid,(void *)pname,msg.ptr,MAXPATHNAMELEN);
msg.data2=Server_Open(pname,msg.data2);
printf("\nVal returned by open is %d\n",msg.data2);
if(msg.data2!=ERROR)
msg.type=0;
else
msg.type=ERROR;
printf("\nInside Server Returning %d\n",msg.type);
Reply(&msg,pid);
break;
}
case MKDIR: //for MkDir,type=1,data2=inode of current dir,ptr=ptr to path
{
CopyFrom(pid,(void *)pname,msg.ptr,MAXPATHNAMELEN);
msg.data2=Server_MkDir(pname,msg.data2);
printf("\nInside Server MkDir with name as %s and curr inode %d\n",pname,msg.data2);
if(msg.data2!=ERROR)
msg.type=0;
else
msg.type=ERROR;
Reply(&msg,pid);
break;
}
case CHDIR: //for ChDir,type=1,data2=inode of current dir,ptr=ptr to new dir
{
CopyFrom(pid,(void *)pname,msg.ptr,MAXPATHNAMELEN);
printf("\nInside Server ChDir with name as %s and curr inode %d\n",pname,msg.data2);
msg.data2=Server_ChDir(pname,msg.data2);
if(msg.data2!=ERROR)
msg.type=0;
else
msg.type=ERROR;
Reply(&msg,pid);
break;
}
case RMDIR: //for ChDir,type=1,data2=inode of current dir,ptr=ptr to dir
{
CopyFrom(pid,(void *)pname,msg.ptr,MAXPATHNAMELEN);
msg.type=Server_RmDir(pname,msg.data2);
Reply((void *)&msg,pid);
break;
}
case READ:
{
CopyFrom(pid,(void *)&msg_read,msg.ptr,sizeof(struct read_struct));
temp_buff=(char *)malloc(msg_read.len+1);
msg.type=Server_Read(msg.data2,msg_read.len,msg_read.offset,temp_buff);
CopyTo(pid,msg_read.buff,temp_buff,msg_read.len);
printf("\nInside Server ReturningRead %d",msg.type);
printf("\n");
Reply((void *)&msg,pid);
//free(temp_buff);
break;
}
case WRITE:
{ printf("\nInside write in while");
CopyFrom(pid,(void *)&msg_write,msg.ptr,sizeof(struct read_struct));
temp_buff=(char *)malloc(msg_write.len+1);
temp_buff[msg_write.len]='\0';
CopyFrom(pid,temp_buff,msg_write.buff,msg_write.len);
printf("\nData for writing is %s and len =%d",temp_buff,msg_write.len);
msg.type=Server_Write(msg.data2,msg_write.len,msg_write.offset,temp_buff);
//
//free(temp_buff);
Reply((void *)&msg,pid);
break;
}
case STAT:
{
CopyFrom(pid,(void *)&msg_stat,msg.ptr,sizeof(struct stat_struct));
msg.type=Server_Stat(msg.data2,msg_stat.pathname,&res_stat);
if(msg.type!=ERROR)
CopyTo(pid,(void *)msg_stat.statbuf,(void *)&res_stat,sizeof(struct Stat));
Reply(&msg,pid);
break;
}
case LINK:
{
CopyFrom(pid,(void *)&msg_link,msg.ptr,sizeof(struct old_new));
msg.data2=Server_Link(msg.data2,msg_link.oldname,msg_link.newname);
if(msg.data2==ERROR)
msg.type=ERROR;
else
msg.type=0;
Reply(&msg,pid);
break;
}
case UNLINK:
{
temp_buff=(char *)malloc(MAXPATHNAMELEN*sizeof(char));
CopyFrom(pid,(void *)temp_buff,msg.ptr,MAXPATHNAMELEN);
msg.type=Server_UnLink(msg.data2,temp_buff);
Reply(&msg,pid);
free(temp_buff);
break;
}
case READLINK:
{
CopyFrom(pid,(void *)&msg_readlink,msg.ptr,sizeof(struct readlink));
temp_buff=(char *)malloc(msg_readlink.len+1);
msg.type=Server_ReadLink(msg.data2,msg_readlink.pathname,msg_readlink.len,temp_buff);
CopyTo(pid,msg_readlink.buf,temp_buff,msg_readlink.len);
Reply(&msg,pid);
break;
}
case SYMLINK:
{
CopyFrom(pid,(void *)&msg_link,msg.ptr,sizeof(struct old_new));
msg.data2=Server_SymLink(msg.data2,msg_link.oldname,msg_link.newname);
if(msg.data2==ERROR)
msg.type=ERROR;
else
msg.type=0;
Reply(&msg,pid);
break;
}
case SEEK:
{
CopyFrom(pid,(void *)&msg_seek,msg.ptr,sizeof(struct stat_struct));
msg.type=Server_Seek(msg.data2,msg_seek.curr_offset,msg_seek.new_offset,msg_seek.whence);
Reply(&msg,pid);
break;
}
case SHUTDOWN:
{ //Server_Sync();
TtyPrintf(0,"\nShutting Down Yalnix File Server!");
msg.type=0;
Reply((void *)&msg,pid);
Exit(0);
break;
}
case SYNC:
{
Reply((void *)&msg,pid);
//Server_sync();
break;
}
default:
{
msg.type=ERROR;
Reply(&msg,pid);
break;
}
}
Reply(&msg,pid);
}
printf("\nExiting Yfs");
return 0;;
}
