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Problem: check_protocol() logic duplicated twice

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Problem:
Conditional logic in check_protocol() that checks if a protocol is supported,
is duplicated twice. Moreover, the first set of checks to ascertain if a
protocol is supported is done regardless of whether the particular protocol
will be built into the library or not.

Solution:
* Simplify/collapse all supported protocol checks into one in check_protocol()
* Enclose pgm/epgm/norm socket+protocol match checks with requisite macros
This commit is contained in:
hitstergtd 2016-04-15 15:39:46 +01:00
parent a670e81e73
commit 8cb27316fa
1 changed files with 14 additions and 39 deletions
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53
src/socket_base.cpp
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@ -263,66 +263,41 @@ int zmq::socket_base_t::check_protocol (const std::string &protocol_)
{
// First check out whether the protocol is something we are aware of.
if (protocol_ != "inproc"
#if !defined ZMQ_HAVE_WINDOWS || !defined ZMQ_HAVE_OPENVMS
&& protocol_ != "ipc"
#endif
&& protocol_ != "tcp"
#if defined ZMQ_HAVE_OPENPGM
// pgm/epgm transports only available if 0MQ is compiled with OpenPGM.
&& protocol_ != "pgm"
&& protocol_ != "epgm"
#endif
#if defined ZMQ_HAVE_TIPC
// TIPC transport is only available on Linux.
&& protocol_ != "tipc"
#endif
#if defined ZMQ_HAVE_NORM
&& protocol_ != "norm"
#endif
#if defined ZMQ_HAVE_VMCI
&& protocol_ != "vmci"
#endif
&& protocol_ != "udp") {
errno = EPROTONOSUPPORT;
return -1;
}
// If 0MQ is not compiled with OpenPGM, pgm and epgm transports
// are not available.
#if !defined ZMQ_HAVE_OPENPGM
if (protocol_ == "pgm" || protocol_ == "epgm") {
errno = EPROTONOSUPPORT;
return -1;
}
#endif
#if !defined ZMQ_HAVE_NORM
if (protocol_ == "norm") {
errno = EPROTONOSUPPORT;
return -1;
}
#endif // !ZMQ_HAVE_NORM
// IPC transport is not available on Windows and OpenVMS.
#if defined ZMQ_HAVE_WINDOWS || defined ZMQ_HAVE_OPENVMS
if (protocol_ == "ipc") {
// Unknown protocol.
errno = EPROTONOSUPPORT;
return -1;
}
#endif
// TIPC transport is only available on Linux.
#if !defined ZMQ_HAVE_TIPC
if (protocol_ == "tipc") {
errno = EPROTONOSUPPORT;
return -1;
}
#endif
#if !defined ZMQ_HAVE_VMCI
if (protocol_ == "vmci") {
errno = EPROTONOSUPPORT;
return -1;
}
#endif
// Check whether socket type and transport protocol match.
// Specifically, multicast protocols can't be combined with
// bi-directional messaging patterns (socket types).
#if defined ZMQ_HAVE_OPENPGM || defined ZMQ_HAVE_NORM
if ((protocol_ == "pgm" || protocol_ == "epgm" || protocol_ == "norm") &&
options.type != ZMQ_PUB && options.type != ZMQ_SUB &&
options.type != ZMQ_XPUB && options.type != ZMQ_XSUB) {
errno = ENOCOMPATPROTO;
return -1;
}
#endif
if (protocol_ == "udp" && (options.type != ZMQ_DISH &&
options.type != ZMQ_RADIO)) {