diff options
Diffstat (limited to '3rdparty/openpgm-svn-r1135/pgm/examples/pgmsend.c')
| -rw-r--r-- | 3rdparty/openpgm-svn-r1135/pgm/examples/pgmsend.c | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/3rdparty/openpgm-svn-r1135/pgm/examples/pgmsend.c b/3rdparty/openpgm-svn-r1135/pgm/examples/pgmsend.c new file mode 100644 index 0000000..6fd85a1 --- /dev/null +++ b/3rdparty/openpgm-svn-r1135/pgm/examples/pgmsend.c @@ -0,0 +1,305 @@ +/* vim:ts=8:sts=8:sw=4:noai:noexpandtab + * + * Simple sender using the PGM transport. + * + * Copyright (c) 2006-2010 Miru Limited. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <errno.h> +#include <locale.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <sys/types.h> +#include <glib.h> +#ifdef G_OS_UNIX +# include <netdb.h> +# include <unistd.h> +# include <arpa/inet.h> +# include <netinet/in.h> +# include <sys/socket.h> +# include <sys/time.h> +#else +# include "getopt.h" +#endif +#include <pgm/pgm.h> + +/* example dependencies */ +#include <pgm/backtrace.h> +#include <pgm/log.h> + + +/* typedefs */ + +/* globals */ + +static int g_port = 0; +static const char* g_network = ""; +static gboolean g_multicast_loop = FALSE; +static int g_udp_encap_port = 0; + +static int g_max_tpdu = 1500; +static int g_max_rte = 400*1000; +static int g_sqns = 100; + +static gboolean g_fec = FALSE; +static int g_k = 8; +static int g_n = 255; + +static pgm_sock_t* g_sock = NULL; + +static gboolean create_pgm_socket (void); + + +G_GNUC_NORETURN static +void +usage (const char* bin) +{ + fprintf (stderr, "Usage: %s [options] message\n", bin); + fprintf (stderr, " -n <network> : Multicast group or unicast IP address\n"); + fprintf (stderr, " -s <port> : IP port\n"); + fprintf (stderr, " -p <port> : Encapsulate PGM in UDP on IP port\n"); + fprintf (stderr, " -r <rate> : Regulate to rate bytes per second\n"); + fprintf (stderr, " -f <type> : Enable FEC with either proactive or ondemand parity\n"); + fprintf (stderr, " -K <k> : Configure Reed-Solomon code (n, k)\n"); + fprintf (stderr, " -N <n>\n"); + fprintf (stderr, " -l : Enable multicast loopback and address sharing\n"); + fprintf (stderr, " -i : List available interfaces\n"); + exit (1); +} + +int +main ( + int argc, + char *argv[] + ) +{ + pgm_error_t* pgm_err = NULL; + + setlocale (LC_ALL, ""); + +/* pre-initialise PGM messages module to add hook for GLib logging */ + pgm_messages_init(); + log_init(); + if (!pgm_init (&pgm_err)) { + g_error ("Unable to start PGM engine: %s", pgm_err->message); + pgm_error_free (pgm_err); + pgm_messages_shutdown(); + return EXIT_FAILURE; + } + +/* parse program arguments */ + const char* binary_name = strrchr (argv[0], '/'); + int c; + while ((c = getopt (argc, argv, "s:n:p:r:f:K:N:lih")) != -1) + { + switch (c) { + case 'n': g_network = optarg; break; + case 's': g_port = atoi (optarg); break; + case 'p': g_udp_encap_port = atoi (optarg); break; + case 'r': g_max_rte = atoi (optarg); break; + + case 'f': g_fec = TRUE; break; + case 'K': g_k = atoi (optarg); break; + case 'N': g_n = atoi (optarg); break; + + case 'l': g_multicast_loop = TRUE; break; + + case 'i': + pgm_if_print_all(); + pgm_messages_shutdown(); + return EXIT_SUCCESS; + + case 'h': + case '?': + pgm_messages_shutdown(); + usage (binary_name); + } + } + + if (g_fec && ( !g_k || !g_n )) { + pgm_messages_shutdown(); + g_error ("Invalid Reed-Solomon parameters RS(%d, %d).", g_n, g_k); + usage (binary_name); + } + +/* setup signal handlers */ + signal (SIGSEGV, on_sigsegv); +#ifdef SIGHUP + signal (SIGHUP, SIG_IGN); +#endif + + if (create_pgm_socket()) + { + while (optind < argc) { + const int status = pgm_send (g_sock, argv[optind], strlen(argv[optind]) + 1, NULL); + if (PGM_IO_STATUS_NORMAL != status) { + g_warning ("pgm_send failed."); + } + optind++; + } + } + +/* cleanup */ + if (g_sock) { + pgm_close (g_sock, TRUE); + g_sock = NULL; + } + pgm_shutdown(); + pgm_messages_shutdown(); + return EXIT_SUCCESS; +} + +static +gboolean +create_pgm_socket (void) +{ + struct pgm_addrinfo_t* res = NULL; + pgm_error_t* pgm_err = NULL; + sa_family_t sa_family = AF_UNSPEC; + +/* parse network parameter into PGM socket address structure */ + if (!pgm_getaddrinfo (g_network, NULL, &res, &pgm_err)) { + g_error ("Parsing network parameter: %s", pgm_err->message); + goto err_abort; + } + + sa_family = res->ai_send_addrs[0].gsr_group.ss_family; + + if (g_udp_encap_port) { + if (!pgm_socket (&g_sock, sa_family, SOCK_SEQPACKET, IPPROTO_UDP, &pgm_err)) { + g_error ("Creating PGM/UDP socket: %s", pgm_err->message); + goto err_abort; + } + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_UDP_ENCAP_UCAST_PORT, &g_udp_encap_port, sizeof(g_udp_encap_port)); + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_UDP_ENCAP_MCAST_PORT, &g_udp_encap_port, sizeof(g_udp_encap_port)); + } else { + if (!pgm_socket (&g_sock, sa_family, SOCK_SEQPACKET, IPPROTO_PGM, &pgm_err)) { + g_error ("Creating PGM/IP socket: %s", pgm_err->message); + goto err_abort; + } + } + +/* Use RFC 2113 tagging for PGM Router Assist */ + const int no_router_assist = 0; + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_IP_ROUTER_ALERT, &no_router_assist, sizeof(no_router_assist)); + + pgm_drop_superuser(); + +/* set PGM parameters */ + const int send_only = 1, + ambient_spm = pgm_secs (30), + heartbeat_spm[] = { pgm_msecs (100), + pgm_msecs (100), + pgm_msecs (100), + pgm_msecs (100), + pgm_msecs (1300), + pgm_secs (7), + pgm_secs (16), + pgm_secs (25), + pgm_secs (30) }; + + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_SEND_ONLY, &send_only, sizeof(send_only)); + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_MTU, &g_max_tpdu, sizeof(g_max_tpdu)); + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_TXW_SQNS, &g_sqns, sizeof(g_sqns)); + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_TXW_MAX_RTE, &g_max_rte, sizeof(g_max_rte)); + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_AMBIENT_SPM, &ambient_spm, sizeof(ambient_spm)); + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_HEARTBEAT_SPM, &heartbeat_spm, sizeof(heartbeat_spm)); + if (g_fec) { + struct pgm_fecinfo_t fecinfo; + fecinfo.block_size = g_n; + fecinfo.proactive_packets = 0; + fecinfo.group_size = g_k; + fecinfo.ondemand_parity_enabled = TRUE; + fecinfo.var_pktlen_enabled = TRUE; + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_USE_FEC, &fecinfo, sizeof(fecinfo)); + } + +/* create global session identifier */ + struct pgm_sockaddr_t addr; + memset (&addr, 0, sizeof(addr)); + addr.sa_port = g_port ? g_port : DEFAULT_DATA_DESTINATION_PORT; + addr.sa_addr.sport = DEFAULT_DATA_SOURCE_PORT; + if (!pgm_gsi_create_from_hostname (&addr.sa_addr.gsi, &pgm_err)) { + g_error ("Creating GSI: %s", pgm_err->message); + goto err_abort; + } + +/* assign socket to specified address */ + struct pgm_interface_req_t if_req; + memset (&if_req, 0, sizeof(if_req)); + if_req.ir_interface = res->ai_recv_addrs[0].gsr_interface; + if_req.ir_scope_id = 0; + if (AF_INET6 == sa_family) { + struct sockaddr_in6 sa6; + memcpy (&sa6, &res->ai_recv_addrs[0].gsr_group, sizeof(sa6)); + if_req.ir_scope_id = sa6.sin6_scope_id; + } + if (!pgm_bind3 (g_sock, + &addr, sizeof(addr), + &if_req, sizeof(if_req), /* tx interface */ + &if_req, sizeof(if_req), /* rx interface */ + &pgm_err)) + { + g_error ("Binding PGM socket: %s", pgm_err->message); + goto err_abort; + } + +/* join IP multicast groups */ + for (unsigned i = 0; i < res->ai_recv_addrs_len; i++) + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_JOIN_GROUP, &res->ai_recv_addrs[i], sizeof(struct group_req)); + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_SEND_GROUP, &res->ai_send_addrs[0], sizeof(struct group_req)); + pgm_freeaddrinfo (res); + +/* set IP parameters */ + const int blocking = 0, + multicast_loop = g_multicast_loop ? 1 : 0, + multicast_hops = 16, + dscp = 0x2e << 2; /* Expedited Forwarding PHB for network elements, no ECN. */ + + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_MULTICAST_LOOP, &multicast_loop, sizeof(multicast_loop)); + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_MULTICAST_HOPS, &multicast_hops, sizeof(multicast_hops)); + if (AF_INET6 != sa_family) + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_TOS, &dscp, sizeof(dscp)); + pgm_setsockopt (g_sock, IPPROTO_PGM, PGM_NOBLOCK, &blocking, sizeof(blocking)); + + if (!pgm_connect (g_sock, &pgm_err)) { + g_error ("Connecting PGM socket: %s", pgm_err->message); + goto err_abort; + } + + return TRUE; + +err_abort: + if (NULL != g_sock) { + pgm_close (g_sock, FALSE); + g_sock = NULL; + } + if (NULL != res) { + pgm_freeaddrinfo (res); + res = NULL; + } + if (NULL != pgm_err) { + pgm_error_free (pgm_err); + pgm_err = NULL; + } + return FALSE; +} + +/* eof */ |