X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=test.c;h=d362845b9a48e6d3570b1cfd130782bb7e0b5896;hb=d5888c10a181d6247e407f480524d36be6319b3e;hp=474230818bb5f7e6c3fc5ffa586ec91cef7c7f15;hpb=93d2e72d3e72e4d91575fc00545dbba96dcdea69;p=utcp diff --git a/test.c b/test.c index 4742308..d362845 100644 --- a/test.c +++ b/test.c @@ -16,18 +16,21 @@ struct utcp_connection *c; int dir = 3; bool running = true; +double dropin; +double dropout; int do_recv(struct utcp_connection *c, const void *data, size_t len) { if(!data || !len) { - if(errno) + if(errno) { fprintf(stderr, "Error: %s\n", strerror(errno)); - else { + dir = 0; + } else { dir &= ~2; fprintf(stderr, "Connection closed by peer\n"); } return 0; } - return write(0, data, len); + return write(1, data, len); } void do_accept(struct utcp_connection *nc, uint16_t port) { @@ -37,11 +40,15 @@ void do_accept(struct utcp_connection *nc, uint16_t port) { int do_send(struct utcp *utcp, const void *data, size_t len) { int s = *(int *)utcp->priv; - return send(s, data, len, MSG_DONTWAIT); + if(drand48() >= dropout) + return send(s, data, len, MSG_DONTWAIT); + else + return 0; } int main(int argc, char *argv[]) { srand(time(NULL)); + srand48(time(NULL)); if(argc < 2 || argc > 3) return 1; @@ -49,6 +56,9 @@ int main(int argc, char *argv[]) { bool server = argc == 2; bool connected = false; + dropin = atof(getenv("DROPIN") ?: "0"); + dropout = atof(getenv("DROPOUT") ?: "0"); + struct addrinfo *ai; struct addrinfo hint = { .ai_flags = server ? AI_PASSIVE : 0, @@ -72,10 +82,14 @@ int main(int argc, char *argv[]) { connected = true; } + freeaddrinfo(ai); + struct utcp *u = utcp_init(server ? do_accept : NULL, NULL, do_send, &s); if(!u) return 1; + utcp_set_user_timeout(u, 10); + if(!server) c = utcp_connect(u, 1, do_recv, NULL); @@ -85,13 +99,10 @@ int main(int argc, char *argv[]) { }; char buf[1024]; + int timeout = utcp_timeout(u); while(dir) { - int r = poll(fds, 2, 1000); - if(!r) { - utcp_timeout(u); - continue; - } + poll(fds, 2, timeout); if(fds[0].revents) { int len = read(0, buf, sizeof buf); @@ -111,15 +122,18 @@ int main(int argc, char *argv[]) { if(fds[1].revents) { struct sockaddr_storage ss; - socklen_t sl; + socklen_t sl = sizeof ss; int len = recvfrom(s, buf, sizeof buf, MSG_DONTWAIT, (struct sockaddr *)&ss, &sl); if(len <= 0) break; if(!connected) if(!connect(s, (struct sockaddr *)&ss, sl)) connected = true; - utcp_recv(u, buf, len); + if(drand48() >= dropin) + utcp_recv(u, buf, len); } + + timeout = utcp_timeout(u); }; utcp_close(c);