SocketOptions.cxx

// cosmos
#include <cosmos/error/RuntimeError.hxx>
#include <cosmos/net/SocketOptions.hxx>
#include <cosmos/private/sockopts.hxx>
#include <cosmos/utils.hxx>
 
namespace cosmos {
 
void SocketOptions::bindToDevice(const SysString ifname) {
        setStringOption(OptName{SO_BINDTODEVICE}, ifname);
}
 
std::string SocketOptions::boundDevice() const {
        return getStringOption(OptName{SO_BINDTODEVICE}, MAX_NET_INTERFACE_NAME);
}
 
void SocketOptions::setMark(const uint32_t mark) {
        // this being an uint32_t is not properly documented in the man page
        // but can be found in the `struct sock` structure in the kernel
        // sources.
        setsockopt<uint32_t>(m_sock, M_LEVEL, OptName{SO_MARK}, mark);
}
 
SocketOptions::Linger SocketOptions::getLinger() const {
        Linger ret;
        auto len = getsockopt(m_sock, M_LEVEL, OptName{SO_LINGER}, &ret, sizeof(ret));
 
        if (len != sizeof(ret)) {
                cosmos_throw (RuntimeError("getsockopt: short read on SO_LINGER"));
        }
 
        return ret;
}
 
void SocketOptions::setLinger(const Linger &linger) {
        setsockopt(m_sock, M_LEVEL, OptName{SO_LINGER}, &linger, sizeof(linger));
}
 
} // end ns