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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "socket_handle.h"
#include <sys/socket.h>
#include <errno.h>
#include <cassert>
namespace vespalib {
SocketHandle::SocketHandle(SocketHandle &&rhs) noexcept
: _fd(rhs.release())
{}
SocketHandle &
SocketHandle::operator=(SocketHandle &&rhs) noexcept {
maybe_close(_fd);
_fd = rhs.release();
return *this;
}
SocketHandle::~SocketHandle() { maybe_close(_fd); }
ssize_t
SocketHandle::read(char *buf, size_t len)
{
for (;;) {
ssize_t result = ::read(_fd, buf, len);
if ((result >= 0) || (errno != EINTR)) {
return result;
}
}
}
ssize_t
SocketHandle::write(const char *buf, size_t len)
{
for (;;) {
ssize_t result = ::write(_fd, buf, len);
if ((result >= 0) || (errno != EINTR)) {
return result;
}
}
}
SocketHandle
SocketHandle::accept()
{
for (;;) {
SocketHandle result(::accept(_fd, nullptr, 0));
if (result.valid() || (errno != EINTR)) {
return result;
}
}
}
void
SocketHandle::shutdown()
{
::shutdown(_fd, SHUT_RDWR);
}
int
SocketHandle::half_close()
{
return ::shutdown(_fd, SHUT_WR);
}
int
SocketHandle::get_so_error() const
{
if (!valid()) {
return EBADF;
}
int so_error = 0;
socklen_t opt_len = sizeof(so_error);
if (getsockopt(_fd, SOL_SOCKET, SO_ERROR, &so_error, &opt_len) != 0) {
return errno;
}
assert(opt_len == sizeof(so_error));
return so_error;
}
} // namespace vespalib
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