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| #include "bipc.h"
|
| #define NODE0 "node0"
| #define NODE1 "node1"
|
| static void
| fatal(const char *func, int rv)
| {
| fprintf(stderr, "%s: %s\n", func, bipc_strerror(rv));
| exit(1);
| }
|
| int
| node0(const char *url)
| {
| nng_socket sock;
| int rv;
|
| // if ((rv = nng_pull0_open(&sock)) != 0) {
| // fatal("nng_pull0_open", rv);
| // }
| if ((rv = bipc_listen(&sock, url, PULL_PUSH)) != 0) {
| fatal("nng_listen", rv);
| }
| for (;;) {
| char *buf = NULL;
| size_t sz;
| if ((rv = bipc_recv(&sock, &buf, &sz)) != 0) {
| fatal("nng_recv", rv);
| }
| printf("NODE0: RECEIVED \"%s\"\n", buf);
| bipc_free(buf, sz);
| }
| }
|
| int
| node1(const char *url, char *msg)
| {
| int sz_msg = strlen(msg) + 1; // '\0' too
| nng_socket sock;
| int rv;
| int bytes;
|
| // if ((rv = nng_push0_open(&sock)) != 0) {
| // fatal("nng_push0_open", rv);
| // }
| if ((rv = bipc_connect(&sock, url, PULL_PUSH)) != 0) {
| fatal("nng_dial", rv);
| }
| printf("NODE1: SENDING \"%s\"\n", msg);
| if ((rv = bipc_send(&sock, msg, strlen(msg)+1)) != 0) {
| fatal("nng_send", rv);
| }
| sleep(1); // wait for messages to flush before shutting down
| bipc_close(&sock);
| return (0);
| }
|
| int
| main(int argc, char **argv)
| {
| if ((argc > 1) && (strcmp(NODE0, argv[1]) == 0))
| return (node0(argv[2]));
|
| if ((argc > 2) && (strcmp(NODE1, argv[1]) == 0))
| return (node1(argv[2], argv[3]));
|
| fprintf(stderr, "Usage: pipeline %s|%s <URL> <ARG> ...'\n",
| NODE0, NODE1);
| return (1);
| }
|
|
