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#pragma once
#include "coctx.h"
#include <library/cpp/coroutine/engine/network.h>
#include <library/cpp/http/fetch_gpl/sockhandler.h>
#include <util/system/error.h>
namespace NHttpFetcher {
class TCoSocketHandler {
public:
TCoSocketHandler() = default;
~TCoSocketHandler() {
Disconnect();
}
int Good() const {
return (Fd != INVALID_SOCKET);
}
int Connect(const TAddrList& addrs, TDuration timeout) {
TCont* cont = CoCtx()->Cont();
Timeout = timeout;
for (const auto& item : addrs) {
try {
const sockaddr* sa = item->Addr();
TSocketHolder s(NCoro::Socket(sa->sa_family, SOCK_STREAM, 0));
if (s.Closed()) {
continue;
}
int err = NCoro::ConnectT(cont, s, sa, item->Len(), Timeout);
if (err) {
s.Close();
errno = err;
continue;
}
SetZeroLinger(s);
SetKeepAlive(s, true);
Fd.Swap(s);
return 0;
} catch (const TSystemError&) {
}
}
return errno ? errno : EBADF;
}
void Disconnect() {
if (Fd.Closed())
return;
try {
ShutDown(Fd, SHUT_RDWR);
} catch (const TSystemError&) {
}
Fd.Close();
}
void shutdown() {
try {
ShutDown(Fd, SHUT_WR);
} catch (TSystemError&) {
}
}
ssize_t send(const void* message, size_t messlen) {
TCont* cont = CoCtx()->Cont();
TContIOStatus status = NCoro::WriteT(cont, Fd, message, messlen, Timeout);
errno = status.Status();
return status.Status() ? -1 : (ssize_t)status.Processed();
}
bool peek() {
TCont* cont = CoCtx()->Cont();
if ((errno = NCoro::PollT(cont, Fd, CONT_POLL_READ, Timeout)))
return false;
char buf[1];
#ifdef _win32_
return (1 == ::recv(Fd, buf, 1, MSG_PEEK));
#else
return (1 == ::recv(Fd, buf, 1, MSG_PEEK | MSG_DONTWAIT));
#endif
}
ssize_t read(void* message, size_t messlen) {
TCont* cont = CoCtx()->Cont();
TContIOStatus status = NCoro::ReadT(cont, Fd, message, messlen, Timeout);
errno = status.Status();
return status.Status() ? -1 : (ssize_t)status.Processed();
}
protected:
TSocketHolder Fd;
TDuration Timeout;
static THolder<TIpAddress> AddrToBind;
};
}
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