generic-library/libzmq
1
0
Fork 0
mirror of https://github.com/zeromq/libzmq.git synced 2025-01-19 08:46:44 +01:00
Code Issues Projects Releases Wiki Activity

Problem: routing ID cycles back to zero

Browse Source 
It should never be zero.

Solution: if rid cycles back to zero, bump to 1.
This commit is contained in:
Pieter Hintjens 2015-09-11 14:30:27 -04:00
parent 60fdfd9a1b
commit 5e936fe955
1 changed files with 29 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
src/server.cpp
View File

@ -39,11 +39,11 @@ zmq::server_t::server_t (class ctx_t *parent_, uint32_t tid_, int sid_) :
socket_base_t (parent_, tid_, sid_, true),
next_rid (generate_random ())
{
options.type = ZMQ_SERVER;
options.type = ZMQ_SERVER;
}
zmq::server_t::~server_t ()
{
{
zmq_assert (outpipes.empty ());
}
@ -51,16 +51,19 @@ void zmq::server_t::xattach_pipe (pipe_t *pipe_, bool subscribe_to_all_)
{
LIBZMQ_UNUSED (subscribe_to_all_);
zmq_assert (pipe_);
zmq_assert (pipe_);
uint32_t routing_id = next_rid++;
if (!routing_id)
routing_id = next_rid++; // Never use RID zero
pipe_->set_routing_id (routing_id);
// Add the record into output pipes lookup table
outpipe_t outpipe = {pipe_, true};
bool ok = outpipes.insert (outpipes_t::value_type (routing_id, outpipe)).second;
zmq_assert (ok);
fq.attach (pipe_);
fq.attach (pipe_);
}
void zmq::server_t::xpipe_terminated (pipe_t *pipe_)
@ -68,12 +71,12 @@ void zmq::server_t::xpipe_terminated (pipe_t *pipe_)
outpipes_t::iterator it = outpipes.find (pipe_->get_routing_id ());
zmq_assert (it != outpipes.end ());
outpipes.erase (it);
fq.pipe_terminated (pipe_);
fq.pipe_terminated (pipe_);
}
void zmq::server_t::xread_activated (pipe_t *pipe_)
{
fq.activated (pipe_);
{
fq.activated (pipe_);
}
void zmq::server_t::xwrite_activated (pipe_t *pipe_)
@ -90,20 +93,20 @@ void zmq::server_t::xwrite_activated (pipe_t *pipe_)
int zmq::server_t::xsend (msg_t *msg_)
{
zmq_assert(!(msg_->flags () & msg_t::more));
// Find the pipe associated with the routing stored in the message.
zmq_assert(!(msg_->flags () & msg_t::more));
// Find the pipe associated with the routing stored in the message.
uint32_t routing_id = msg_->get_routing_id ();
outpipes_t::iterator it = outpipes.find (routing_id);
if (it != outpipes.end ()) {
if (it != outpipes.end ()) {
if (!it->second.pipe->check_write ()) {
it->second.active = false;
it->second.active = false;
errno = EAGAIN;
return -1;
return -1;
}
}
else {
else {
errno = EHOSTUNREACH;
return -1;
}
@ -113,10 +116,11 @@ int zmq::server_t::xsend (msg_t *msg_)
// Message failed to send - we must close it ourselves.
int rc = msg_->close ();
errno_assert (rc == 0);
} else {
it->second.pipe->flush ();
}
else
it->second.pipe->flush ();
// Detach the message from the data buffer.
int rc = msg_->init ();
errno_assert (rc == 0);
@ -125,7 +129,7 @@ int zmq::server_t::xsend (msg_t *msg_)
}
int zmq::server_t::xrecv (msg_t *msg_)
{
{
pipe_t *pipe = NULL;
int rc = fq.recvpipe (msg_, &pipe);
@ -134,17 +138,17 @@ int zmq::server_t::xrecv (msg_t *msg_)
// drop all frames of the current multi-frame message
rc = fq.recvpipe (msg_, NULL);
while (rc == 0 && msg_->flags () & msg_t::more)
rc = fq.recvpipe (msg_, NULL);
rc = fq.recvpipe (msg_, NULL);
// get the new message
if (rc == 0)
if (rc == 0)
rc = fq.recvpipe (msg_, &pipe);
}
}
if (rc != 0)
return rc;
return rc;
zmq_assert (pipe != NULL);