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Problem: can't process ZMTP 3.1 cancel/subscribe commands

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Solution: add some msg helpers to parse commands, and check for
subscribe or cancel commands and process them accordingly in the xpub
and xsub classes.
This commit is contained in:
Luca Boccassi
2018-05-28 18:00:11 +01:00
parent 681e53f369
commit d70714e877
10 changed files with 440 additions and 66 deletions
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37
src/msg.cpp
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@@ -444,6 +444,43 @@ bool zmq::msg_t::is_leave () const
return _u.base.type == type_leave;
}
bool zmq::msg_t::is_ping () const
{
return (_u.base.flags & CMD_TYPE_MASK) == ping;
}
bool zmq::msg_t::is_pong () const
{
return (_u.base.flags & CMD_TYPE_MASK) == pong;
}
size_t zmq::msg_t::command_body_size () const
{
if (this->is_ping () || this->is_pong ())
return this->size () - ping_cmd_name_size;
if (this->is_subscribe ())
return this->size () - sub_cmd_name_size;
if (this->is_cancel ())
return this->size () - cancel_cmd_name_size;
return 0;
}
void *zmq::msg_t::command_body ()
{
unsigned char *data = NULL;
if (this->is_ping () || this->is_pong ())
data =
static_cast<unsigned char *> (this->data ()) + ping_cmd_name_size;
if (this->is_subscribe ())
data = static_cast<unsigned char *> (this->data ()) + sub_cmd_name_size;
if (this->is_cancel ())
data =
static_cast<unsigned char *> (this->data ()) + cancel_cmd_name_size;
return data;
}
void zmq::msg_t::add_refs (int refs_)
{
zmq_assert (refs_ >= 0);