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Commit 3d8eb071 authored by Martin Sustrik's avatar Martin Sustrik
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Coding style fixed for pgm_socket 

Signed-off-by: 's avatarMartin Sustrik <sustrik@250bpm.com>
parent b358df9f
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Showing with 132 additions and 84 deletions
src/pgm_socket.cpp
View file @ 3d8eb071
......@@ -107,59 +107,71 @@ int zmq::pgm_socket_t::init (bool udp_encapsulation_, const char *network_)
memset (&hints, 0, sizeof (hints));
hints.ai_family = AF_UNSPEC;
if (!pgm_getaddrinfo (network, NULL, &res, &pgm_error)) {
// Invalid parameters don't set pgm_error_t
// Invalid parameters don't set pgm_error_t.
zmq_assert (pgm_error != NULL);
if (pgm_error->domain == PGM_ERROR_DOMAIN_IF && (
// NB: cannot catch EAI_BADFLAGS
// NB: cannot catch EAI_BADFLAGS.
pgm_error->code != PGM_ERROR_SERVICE &&
pgm_error->code != PGM_ERROR_SOCKTNOSUPPORT))
// User, host, or network configuration or transient error
// User, host, or network configuration or transient error.
goto err_abort;
// Fatal OpenPGM internal error
// Fatal OpenPGM internal error.
zmq_assert (false);
}
zmq_assert (res != NULL);
// Pick up detected IP family
// Pick up detected IP family.
sa_family = res->ai_send_addrs[0].gsr_group.ss_family;
// Create IP/PGM or UDP/PGM socket
// Create IP/PGM or UDP/PGM socket.
if (udp_encapsulation_) {
if (!pgm_socket (&sock, sa_family, SOCK_SEQPACKET, IPPROTO_UDP, &pgm_error)) {
// Invalid parameters don't set pgm_error_t
if (!pgm_socket (&sock, sa_family, SOCK_SEQPACKET, IPPROTO_UDP,
&pgm_error)) {
// Invalid parameters don't set pgm_error_t.
zmq_assert (pgm_error != NULL);
if (pgm_error->domain == PGM_ERROR_DOMAIN_SOCKET && (
pgm_error->code != PGM_ERROR_BADF &&
pgm_error->code != PGM_ERROR_FAULT &&
pgm_error->code != PGM_ERROR_NOPROTOOPT &&
pgm_error->code != PGM_ERROR_FAILED))
// User, host, or network configuration or transient error
// User, host, or network configuration or transient error.
goto err_abort;
// Fatal OpenPGM internal error
// Fatal OpenPGM internal error.
zmq_assert (false);
}
// All options are of data type int
const int encapsulation_port = port_number;
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_UDP_ENCAP_UCAST_PORT, &encapsulation_port, sizeof (encapsulation_port)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_UDP_ENCAP_MCAST_PORT, &encapsulation_port, sizeof (encapsulation_port)))
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_UDP_ENCAP_UCAST_PORT,
&encapsulation_port, sizeof (encapsulation_port)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_UDP_ENCAP_MCAST_PORT,
&encapsulation_port, sizeof (encapsulation_port)))
goto err_abort;
} else {
if (!pgm_socket (&sock, sa_family, SOCK_SEQPACKET, IPPROTO_PGM, &pgm_error)) {
// Invalid parameters don't set pgm_error_t
}
else {
if (!pgm_socket (&sock, sa_family, SOCK_SEQPACKET, IPPROTO_PGM,
&pgm_error)) {
// Invalid parameters don't set pgm_error_t.
zmq_assert (pgm_error != NULL);
if (pgm_error->domain == PGM_ERROR_DOMAIN_SOCKET && (
pgm_error->code != PGM_ERROR_BADF &&
pgm_error->code != PGM_ERROR_FAULT &&
pgm_error->code != PGM_ERROR_NOPROTOOPT &&
pgm_error->code != PGM_ERROR_FAILED))
// User, host, or network configuration or transient error
// User, host, or network configuration or transient error.
goto err_abort;
// Fatal OpenPGM internal error
// Fatal OpenPGM internal error.
zmq_assert (false);
}
}
......@@ -169,16 +181,19 @@ int zmq::pgm_socket_t::init (bool udp_encapsulation_, const char *network_)
sndbuf = (int) options.sndbuf,
max_tpdu = (int) pgm_max_tpdu;
if (rcvbuf) {
if (!pgm_setsockopt (sock, SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof (rcvbuf)))
goto err_abort;
if (!pgm_setsockopt (sock, SOL_SOCKET, SO_RCVBUF, &rcvbuf,
sizeof (rcvbuf)))
goto err_abort;
}
if (sndbuf) {
if (!pgm_setsockopt (sock, SOL_SOCKET, SO_SNDBUF, &sndbuf, sizeof (sndbuf)))
goto err_abort;
if (!pgm_setsockopt (sock, SOL_SOCKET, SO_SNDBUF, &sndbuf,
sizeof (sndbuf)))
goto err_abort;
}
// Set maximum transport protocol data unit size (TPDU).
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_MTU, &max_tpdu, sizeof (max_tpdu)))
// Set maximum transport protocol data unit size (TPDU).
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_MTU, &max_tpdu,
sizeof (max_tpdu)))
goto err_abort;
}
......@@ -194,16 +209,26 @@ int zmq::pgm_socket_t::init (bool udp_encapsulation_, const char *network_)
nak_data_retries = 50,
nak_ncf_retries = 50;
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_RECV_ONLY, &recv_only, sizeof (recv_only)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_RXW_MAX_RTE, &rxw_max_rte, sizeof (rxw_max_rte)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_RXW_SECS, &rxw_secs, sizeof (rxw_secs)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_PEER_EXPIRY, &peer_expiry, sizeof (peer_expiry)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_SPMR_EXPIRY, &spmr_expiry, sizeof (spmr_expiry)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_BO_IVL, &nak_bo_ivl, sizeof (nak_bo_ivl)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_RPT_IVL, &nak_rpt_ivl, sizeof (nak_rpt_ivl)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_RDATA_IVL, &nak_rdata_ivl, sizeof (nak_rdata_ivl)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_DATA_RETRIES, &nak_data_retries, sizeof (nak_data_retries)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_NCF_RETRIES, &nak_ncf_retries, sizeof (nak_ncf_retries)))
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_RECV_ONLY, &recv_only,
sizeof (recv_only)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_RXW_MAX_RTE, &rxw_max_rte,
sizeof (rxw_max_rte)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_RXW_SECS, &rxw_secs,
sizeof (rxw_secs)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_PEER_EXPIRY, &peer_expiry,
sizeof (peer_expiry)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_SPMR_EXPIRY, &spmr_expiry,
sizeof (spmr_expiry)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_BO_IVL, &nak_bo_ivl,
sizeof (nak_bo_ivl)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_RPT_IVL, &nak_rpt_ivl,
sizeof (nak_rpt_ivl)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_RDATA_IVL,
&nak_rdata_ivl, sizeof (nak_rdata_ivl)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_DATA_RETRIES,
&nak_data_retries, sizeof (nak_data_retries)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NAK_NCF_RETRIES,
&nak_ncf_retries, sizeof (nak_ncf_retries)))
goto err_abort;
} else {
const int send_only = 1,
......@@ -220,11 +245,16 @@ int zmq::pgm_socket_t::init (bool udp_encapsulation_, const char *network_)
pgm_secs (25),
pgm_secs (30) };
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_SEND_ONLY, &send_only, sizeof (send_only)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_TXW_MAX_RTE, &txw_max_rte, sizeof (txw_max_rte)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_TXW_SECS, &txw_secs, sizeof (txw_secs)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_AMBIENT_SPM, &ambient_spm, sizeof (ambient_spm)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_HEARTBEAT_SPM, &heartbeat_spm, sizeof (heartbeat_spm)))
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_SEND_ONLY,
&send_only, sizeof (send_only)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_TXW_MAX_RTE,
&txw_max_rte, sizeof (txw_max_rte)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_TXW_SECS,
&txw_secs, sizeof (txw_secs)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_AMBIENT_SPM,
&ambient_spm, sizeof (ambient_spm)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_HEARTBEAT_SPM,
&heartbeat_spm, sizeof (heartbeat_spm)))
goto err_abort;
}
......@@ -238,13 +268,15 @@ int zmq::pgm_socket_t::init (bool udp_encapsulation_, const char *network_)
if (options.identity.size () > 0) {
// Create gsi from identity.
if (!pgm_gsi_create_from_data (&addr.sa_addr.gsi, options.identity.data (), options.identity.size ()))
if (!pgm_gsi_create_from_data (&addr.sa_addr.gsi,
options.identity.data (), options.identity.size ()))
goto err_abort;
} else {
// Generate random gsi.
std::string gsi_base = uuid_t ().to_string ();
if (!pgm_gsi_create_from_string (&addr.sa_addr.gsi, gsi_base.c_str (), -1))
if (!pgm_gsi_create_from_string (&addr.sa_addr.gsi,
gsi_base.c_str (), -1))
goto err_abort;
}
......@@ -258,53 +290,63 @@ int zmq::pgm_socket_t::init (bool udp_encapsulation_, const char *network_)
memcpy (&sa6, &res->ai_recv_addrs[0].gsr_group, sizeof (sa6));
if_req.ir_scope_id = sa6.sin6_scope_id;
}
if (!pgm_bind3 (sock, &addr, sizeof (addr), &if_req, sizeof (if_req), &if_req, sizeof (if_req), &pgm_error)) {
// Invalid parameters don't set pgm_error_t
if (!pgm_bind3 (sock, &addr, sizeof (addr), &if_req, sizeof (if_req),
&if_req, sizeof (if_req), &pgm_error)) {
// Invalid parameters don't set pgm_error_t.
zmq_assert (pgm_error != NULL);
if ((pgm_error->domain == PGM_ERROR_DOMAIN_SOCKET ||
pgm_error->domain == PGM_ERROR_DOMAIN_IF) && (
pgm_error->code != PGM_ERROR_INVAL &&
pgm_error->code != PGM_ERROR_BADF &&
pgm_error->code != PGM_ERROR_FAULT))
// User, host, or network configuration or transient error
// User, host, or network configuration or transient error.
goto err_abort;
// Fatal OpenPGM internal error
// Fatal OpenPGM internal error.
zmq_assert (false);
}
// Join IP multicast groups
for (unsigned i = 0; i < res->ai_recv_addrs_len; i++)
{
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_JOIN_GROUP, &res->ai_recv_addrs[i], sizeof (struct group_req)))
// Join IP multicast groups.
for (unsigned i = 0; i < res->ai_recv_addrs_len; i++) {
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_JOIN_GROUP,
&res->ai_recv_addrs [i], sizeof (struct group_req)))
goto err_abort;
}
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_SEND_GROUP, &res->ai_send_addrs[0], sizeof (struct group_req)))
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_SEND_GROUP,
&res->ai_send_addrs [0], sizeof (struct group_req)))
goto err_abort;
pgm_freeaddrinfo (res);
res = NULL;
// Set IP level parameters
// Set IP level parameters.
{
const int nonblocking = 1,
multicast_loop = options.use_multicast_loop ? 1 : 0,
multicast_hops = 16,
dscp = 0x2e << 2; /* Expedited Forwarding PHB for network elements, no ECN. */
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_MULTICAST_LOOP, &multicast_loop, sizeof (multicast_loop)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_MULTICAST_HOPS, &multicast_hops, sizeof (multicast_hops)))
// Expedited Forwarding PHB for network elements, no ECN.
dscp = 0x2e << 2;
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_MULTICAST_LOOP,
&multicast_loop, sizeof (multicast_loop)) ||
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_MULTICAST_HOPS,
&multicast_hops, sizeof (multicast_hops)))
goto err_abort;
if (AF_INET6 != sa_family &&
!pgm_setsockopt (sock, IPPROTO_PGM, PGM_TOS, &dscp, sizeof (dscp)))
if (AF_INET6 != sa_family && !pgm_setsockopt (sock,
IPPROTO_PGM, PGM_TOS, &dscp, sizeof (dscp)))
goto err_abort;
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NOBLOCK, &nonblocking, sizeof (nonblocking)))
if (!pgm_setsockopt (sock, IPPROTO_PGM, PGM_NOBLOCK,
&nonblocking, sizeof (nonblocking)))
goto err_abort;
}
// Connect PGM transport to start state machine.
if (!pgm_connect (sock, &pgm_error)) {
// Invalid parameters don't set pgm_error_t
// Invalid parameters don't set pgm_error_t.
zmq_assert (pgm_error != NULL);
goto err_abort;
}
......@@ -348,9 +390,8 @@ zmq::pgm_socket_t::~pgm_socket_t ()
pgm_close (sock, TRUE);
}
// Get receiver fds. receive_fd_ is signaled for incoming
// packets, waiting_pipe_fd_ is signaled for state driven
// events and data.
// Get receiver fds. receive_fd_ is signaled for incoming packets,
// waiting_pipe_fd_ is signaled for state driven events and data.
void zmq::pgm_socket_t::get_receiver_fds (int *receive_fd_,
int *waiting_pipe_fd_)
{
......@@ -361,12 +402,14 @@ void zmq::pgm_socket_t::get_receiver_fds (int *receive_fd_,
zmq_assert (waiting_pipe_fd_);
socklen = sizeof (*receive_fd_);
rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_RECV_SOCK, receive_fd_, &socklen);
rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_RECV_SOCK, receive_fd_,
&socklen);
zmq_assert (rc);
zmq_assert (socklen == sizeof (*receive_fd_));
socklen = sizeof (*waiting_pipe_fd_);
rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_PENDING_SOCK, waiting_pipe_fd_, &socklen);
rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_PENDING_SOCK, waiting_pipe_fd_,
&socklen);
zmq_assert (rc);
zmq_assert (socklen == sizeof (*waiting_pipe_fd_));
}
......@@ -393,17 +436,20 @@ void zmq::pgm_socket_t::get_sender_fds (int *send_fd_, int *receive_fd_,
zmq_assert (socklen == sizeof (*receive_fd_));
socklen = sizeof (*receive_fd_);
rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_RECV_SOCK, receive_fd_, &socklen);
rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_RECV_SOCK, receive_fd_,
&socklen);
zmq_assert (rc);
zmq_assert (socklen == sizeof (*receive_fd_));
socklen = sizeof (*rdata_notify_fd_);
rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_REPAIR_SOCK, rdata_notify_fd_, &socklen);
rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_REPAIR_SOCK, rdata_notify_fd_,
&socklen);
zmq_assert (rc);
zmq_assert (socklen == sizeof (*rdata_notify_fd_));
socklen = sizeof (*pending_notify_fd_);
rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_PENDING_SOCK, pending_notify_fd_, &socklen);
rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_PENDING_SOCK,
pending_notify_fd_, &socklen);
zmq_assert (rc);
zmq_assert (socklen == sizeof (*pending_notify_fd_));
}
......@@ -416,12 +462,13 @@ size_t zmq::pgm_socket_t::send (unsigned char *data_, size_t data_len_)
const int status = pgm_send (sock, data_, data_len_, &nbytes);
// We have to write all data as one packet.
// We have to write all data as one packet.
if (nbytes > 0) {
zmq_assert (status == PGM_IO_STATUS_NORMAL);
zmq_assert ((ssize_t) nbytes == (ssize_t) data_len_);
} else {
zmq_assert (status == PGM_IO_STATUS_RATE_LIMITED || status == PGM_IO_STATUS_WOULD_BLOCK);
zmq_assert (status == PGM_IO_STATUS_RATE_LIMITED ||
status == PGM_IO_STATUS_WOULD_BLOCK);
if (status == PGM_IO_STATUS_RATE_LIMITED)
errno = ENOMEM;
......@@ -429,7 +476,7 @@ size_t zmq::pgm_socket_t::send (unsigned char *data_, size_t data_len_)
errno = EBUSY;
}
// Save return value.
// Save return value.
last_tx_status = status;
return nbytes;
......@@ -437,12 +484,15 @@ size_t zmq::pgm_socket_t::send (unsigned char *data_, size_t data_len_)
long zmq::pgm_socket_t::get_rx_timeout ()
{
if (last_rx_status != PGM_IO_STATUS_RATE_LIMITED && last_rx_status != PGM_IO_STATUS_TIMER_PENDING)
if (last_rx_status != PGM_IO_STATUS_RATE_LIMITED &&
last_rx_status != PGM_IO_STATUS_TIMER_PENDING)
return -1;
struct timeval tv;
socklen_t optlen = sizeof (tv);
const bool rc = pgm_getsockopt (sock, IPPROTO_PGM, last_rx_status == PGM_IO_STATUS_RATE_LIMITED ? PGM_RATE_REMAIN : PGM_TIME_REMAIN, &tv, &optlen);
const bool rc = pgm_getsockopt (sock, IPPROTO_PGM,
last_rx_status == PGM_IO_STATUS_RATE_LIMITED ? PGM_RATE_REMAIN :
PGM_TIME_REMAIN, &tv, &optlen);
zmq_assert (rc);
const long timeout = (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
......@@ -457,7 +507,8 @@ long zmq::pgm_socket_t::get_tx_timeout ()
struct timeval tv;
socklen_t optlen = sizeof (tv);
const bool rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_RATE_REMAIN, &tv, &optlen);
const bool rc = pgm_getsockopt (sock, IPPROTO_PGM, PGM_RATE_REMAIN, &tv,
&optlen);
zmq_assert (rc);
const long timeout = (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
......@@ -477,9 +528,8 @@ size_t zmq::pgm_socket_t::get_max_tsdu_size ()
return (size_t) max_tsdu;
}
// pgm_recvmsgv is called to fill the pgm_msgv array up to
// pgm_msgv_len. In subsequent calls data from pgm_msgv structure are
// returned.
// pgm_recvmsgv is called to fill the pgm_msgv array up to pgm_msgv_len.
// In subsequent calls data from pgm_msgv structure are returned.
ssize_t zmq::pgm_socket_t::receive (void **raw_data_, const pgm_tsi_t **tsi_)
{
size_t raw_data_len = 0;
......@@ -512,7 +562,7 @@ ssize_t zmq::pgm_socket_t::receive (void **raw_data_, const pgm_tsi_t **tsi_)
const int status = pgm_recvmsgv (sock, pgm_msgv,
pgm_msgv_len, MSG_ERRQUEUE, &nbytes_rec, &pgm_error);
// Invalid parameters
// Invalid parameters.
zmq_assert (status != PGM_IO_STATUS_ERROR);
last_rx_status = status;
......@@ -535,8 +585,7 @@ ssize_t zmq::pgm_socket_t::receive (void **raw_data_, const pgm_tsi_t **tsi_)
zmq_assert (nbytes_rec == 0);
// In case if no RDATA/ODATA caused POLLIN 0 is
// returned.
// In case if no RDATA/ODATA caused POLLIN 0 is returned.
nbytes_rec = 0;
errno = ENOMEM;
return 0;
......@@ -547,8 +596,7 @@ ssize_t zmq::pgm_socket_t::receive (void **raw_data_, const pgm_tsi_t **tsi_)
zmq_assert (nbytes_rec == 0);
// In case if no RDATA/ODATA caused POLLIN 0 is
// returned.
// In case if no RDATA/ODATA caused POLLIN 0 is returned.
nbytes_rec = 0;
errno = EAGAIN;
return 0;
......@@ -610,12 +658,13 @@ void zmq::pgm_socket_t::process_upstream ()
const int status = pgm_recvmsgv (sock, &dummy_msg,
1, MSG_ERRQUEUE, &dummy_bytes, &pgm_error);
// Invalid parameters
// Invalid parameters.
zmq_assert (status != PGM_IO_STATUS_ERROR);
// No data should be returned.
zmq_assert (dummy_bytes == 0 && (status == PGM_IO_STATUS_TIMER_PENDING ||
status == PGM_IO_STATUS_RATE_LIMITED || status == PGM_IO_STATUS_WOULD_BLOCK));
status == PGM_IO_STATUS_RATE_LIMITED ||
status == PGM_IO_STATUS_WOULD_BLOCK));
last_rx_status = status;
......
src/pgm_socket.hpp
View file @ 3d8eb071
......@@ -40,9 +40,8 @@ namespace zmq
{
public:
// If receiver_ is true PGM transport is not generating SPM packets.
// interface format: iface;mcast_group:port for raw PGM socket
// udp:iface;mcast_goup:port for UDP encapsulacion
pgm_socket_t (bool receiver_, const options_t &options_);
// Closes the transport.
......@@ -77,7 +76,7 @@ namespace zmq
private:
// OpenPGM transport
// OpenPGM transport.
pgm_sock_t* sock;
int last_rx_status, last_tx_status;
......
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