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#ifndef SOCKUTILS_HH
#define SOCKUTILS_HH
namespace stuff {
bool make_nonblocking(int sock);
bool calc_timeout(const struct timeval* target, struct timeval* timeout);
class sockguard {
public:
sockguard()
: sock_(-1) {
}
explicit sockguard(int sock)
: sock_(sock) {
}
sockguard(sockguard&& sock)
: sock_(sock.sock_) {
}
~sockguard() {
reset();
}
sockguard& operator=(sockguard&& sock) {
reset(sock.sock_);
return *this;
}
void reset() {
if (sock_ != -1) {
close(sock_);
sock_ = -1;
}
}
void reset(int sock) {
if (sock_ != -1 && sock_ != sock) {
close(sock_);
}
sock_ = sock;
}
void swap(sockguard& sock) {
auto tmp = sock.sock_;
sock.sock_ = sock_;
sock_ = tmp;
}
operator bool() const {
return sock_ != -1;
}
int get() const {
return sock_;
}
int release() {
auto ret = sock_;
sock_ = -1;
return ret;
}
protected:
sockguard(const sockguard&) = delete;
sockguard& operator=(const sockguard&) = delete;
static void close(int sock);
private:
int sock_;
};
} // namespace stuff
namespace std {
void swap(stuff::sockguard& s1, stuff::sockguard& s2) noexcept;
} // namespace std
#endif /* SOCKUTILS_HH */
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