Something that I think would be nice is being able to treat a network
connection the same way we can work with files and stdin.
Is there a plan already in place for phobos? If no, I might have
something usable to get started.
I peered into std.stdio's source and hacked something up. My plan was
simple: open the network, then assign the FILE* to it to the File
struct.
This is just for Linux; I haven't done Windows code like this for a
long time and I don't remember how. But this might be a useful
starting point anyway, so I figure I'll share it.
What I'd ultimately like is something like this for all D platforms,
and an add-on facility for handling multiple connections, including
incoming connections. I actually have something for this too, but it
is incompatible with the File struct (and Linux only again).
=========
import std.stdio;
import std.string;
import std.conv;
version(linux):
import std.c.linux.linux;
import std.c.linux.socket;
alias std.c.linux.socket sock;
alias std.c.linux.linux linux;
enum int PF_INET = 2;
enum int AF_INET = PF_INET;
extern(C) FILE* fdopen(int, const(char)*);
File openNetwork(string host, ushort port) {
hostent* h;
sockaddr_in addr;
h = gethostbyname(std.string.toStringz(host));
if(h is null)
throw new StdioException("gethostbyname");
int s = socket(PF_INET, SOCK_STREAM, 0);
if(s == -1)
throw new StdioException("socket");
scope(failure)
close(s);
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
std.c.string.memcpy(&addr.sin_addr.s_addr, h.h_addr, h.h_length);
if(sock.connect(s, cast(sockaddr*) &addr, addr.sizeof) == -1)
throw new StdioException("Connect failed");
FILE* fp = fdopen(s, "w+".ptr);
File f;
auto imp = new File.Impl(fp, 1, host ~ ":" ~ to!string(port));
f.p = imp;
return f;
}
========
