diff options
| -rwxr-xr-x | net/tcpclient.c (renamed from net/x_net_tcp_client.c) | 0 | ||||
| -rwxr-xr-x | net/tcpreceive.c (renamed from net/x_net_tcpreceive.c) | 0 | ||||
| -rwxr-xr-x | net/tcpsend.c (renamed from net/x_net_tcpsend.c) | 0 | ||||
| -rwxr-xr-x | net/tcpserver.c (renamed from net/x_net_tcpserver.c) | 0 | ||||
| -rwxr-xr-x | net/udpreceive.c (renamed from net/x_net_udpreceive.c) | 0 | ||||
| -rwxr-xr-x | net/udpsend.c (renamed from net/x_net_udpsend.c) | 0 | ||||
| -rwxr-xr-x | net/x_net_tcp_server.c | 600 | ||||
| -rwxr-xr-x | net/x_net_tcpclient.c | 443 |
8 files changed, 0 insertions, 1043 deletions
diff --git a/net/x_net_tcp_client.c b/net/tcpclient.c index 366d421..366d421 100755 --- a/net/x_net_tcp_client.c +++ b/net/tcpclient.c diff --git a/net/x_net_tcpreceive.c b/net/tcpreceive.c index 4cce77d..4cce77d 100755 --- a/net/x_net_tcpreceive.c +++ b/net/tcpreceive.c diff --git a/net/x_net_tcpsend.c b/net/tcpsend.c index cf8c33d..cf8c33d 100755 --- a/net/x_net_tcpsend.c +++ b/net/tcpsend.c diff --git a/net/x_net_tcpserver.c b/net/tcpserver.c index f6526c0..f6526c0 100755 --- a/net/x_net_tcpserver.c +++ b/net/tcpserver.c diff --git a/net/x_net_udpreceive.c b/net/udpreceive.c index cef02b2..cef02b2 100755 --- a/net/x_net_udpreceive.c +++ b/net/udpreceive.c diff --git a/net/x_net_udpsend.c b/net/udpsend.c index 7b468f9..7b468f9 100755 --- a/net/x_net_udpsend.c +++ b/net/udpsend.c diff --git a/net/x_net_tcp_server.c b/net/x_net_tcp_server.c deleted file mode 100755 index 4438215..0000000 --- a/net/x_net_tcp_server.c +++ /dev/null @@ -1,600 +0,0 @@ -/* x_net_tcpserver.c Martin Peach 20060511 working version 20060512 */ -/* x_net_tcpserver.c is based on netserver: */ -/* -------------------------- netserver ------------------------------------- */ -/* */ -/* A server for bidirectional communication from within Pd. */ -/* Allows to send back data to specific clients connected to the server. */ -/* Written by Olaf Matthes <olaf.matthes@gmx.de> */ -/* Get source at http://www.akustische-kunst.org/puredata/maxlib */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program 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 General Public License for more details. */ -/* */ -/* You should have received a copy of the GNU General Public License */ -/* along with this program; if not, write to the Free Software */ -/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -/* */ -/* Based on PureData by Miller Puckette and others. */ -/* */ -/* ---------------------------------------------------------------------------- */ -//define DEBUG - -#include "m_pd.h" -#include "m_imp.h" -#include "s_stuff.h" - -//#include <sys/types.h> -//#include <stdarg.h> -//#include <signal.h> -//#include <fcntl.h> -//#include <errno.h> -//#include <string.h> -//#include <stdio.h> -//#include <pthread.h> -#if defined(UNIX) || defined(unix) -#include <sys/socket.h> -#include <netinet/in.h> -#include <netinet/tcp.h> -#include <arpa/inet.h> -#include <netdb.h> -#include <unistd.h> -#include <stdlib.h> -#include <sys/time.h> -#define SOCKET_ERROR -1 -#else -//#include <io.h> -//#include <fcntl.h> -#include <winsock2.h> -#endif - -#define MAX_CONNECT 32 /* maximum number of connections */ -#define INBUFSIZE 65536L /* was 4096: size of receiving data buffer */ -#define MAX_UDP_RECEIVE 65536L /* longer than data in maximum UDP packet */ - -/* ----------------------------- tcpserver ------------------------- */ - -static t_class *tcpserver_class; -static t_binbuf *inbinbuf; -static char objName[] = "tcpserver"; - -typedef void (*t_tcpserver_socketnotifier)(void *x); -typedef void (*t_tcpserver_socketreceivefn)(void *x, t_binbuf *b); - -typedef struct _tcpserver -{ - t_object x_obj; - t_outlet *x_msgout; - t_outlet *x_connectout; - t_outlet *x_sockout; - t_outlet *x_addrout; - t_symbol *x_host[MAX_CONNECT]; - t_int x_fd[MAX_CONNECT]; - u_long x_addr[MAX_CONNECT]; - t_atom x_addrbytes[4]; - t_int x_sock_fd; - t_int x_connectsocket; - t_int x_nconnections; - t_atom x_msgoutbuf[MAX_UDP_RECEIVE]; - char x_msginbuf[MAX_UDP_RECEIVE]; -} t_tcpserver; - -typedef struct _tcpserver_socketreceiver -{ - unsigned char *sr_inbuf; - int sr_inhead; - int sr_intail; - void *sr_owner; - t_tcpserver_socketnotifier sr_notifier; - t_tcpserver_socketreceivefn sr_socketreceivefn; -} t_tcpserver_socketreceiver; - -static t_tcpserver_socketreceiver *tcpserver_socketreceiver_new(void *owner, t_tcpserver_socketnotifier notifier, - t_tcpserver_socketreceivefn socketreceivefn); -static int tcpserver_socketreceiver_doread(t_tcpserver_socketreceiver *x); -static void tcpserver_socketreceiver_read(t_tcpserver_socketreceiver *x, int fd); -static void tcpserver_socketreceiver_free(t_tcpserver_socketreceiver *x); -static void tcpserver_send(t_tcpserver *x, t_symbol *s, int argc, t_atom *argv); -static void tcp_server_send_bytes(int sockfd, t_tcpserver *x, int argc, t_atom *argv); -static void tcpserver_client_send(t_tcpserver *x, t_symbol *s, int argc, t_atom *argv); -static void tcpserver_broadcast(t_tcpserver *x, t_symbol *s, int argc, t_atom *argv); -static void tcpserver_notify(t_tcpserver *x); -static void tcpserver_connectpoll(t_tcpserver *x); -static void tcpserver_print(t_tcpserver *x); -static void *tcpserver_new(t_floatarg fportno); -static void tcpserver_free(t_tcpserver *x); -#ifdef MSW -__declspec(dllexport) -#endif -void tcpserver_setup(void); - -static t_tcpserver_socketreceiver *tcpserver_socketreceiver_new(void *owner, t_tcpserver_socketnotifier notifier, - t_tcpserver_socketreceivefn socketreceivefn) -{ - t_tcpserver_socketreceiver *x = (t_tcpserver_socketreceiver *)getbytes(sizeof(*x)); - if (!x) - { - error("%s_socketreceiver: unable to allocate %d bytes", objName, sizeof(*x)); - } - else - { - x->sr_inhead = x->sr_intail = 0; - x->sr_owner = owner; - x->sr_notifier = notifier; - x->sr_socketreceivefn = socketreceivefn; - if (!(x->sr_inbuf = malloc(INBUFSIZE))) - { - freebytes(x, sizeof(*x)); - x = NULL; - error("%s_socketreceiver: unable to allocate %d bytes", objName, INBUFSIZE); - } - } - return (x); -} - -/* this is in a separately called subroutine so that the buffer isn't - sitting on the stack while the messages are getting passed. */ -static int tcpserver_socketreceiver_doread(t_tcpserver_socketreceiver *x) -{ - char messbuf[INBUFSIZE]; - char *bp = messbuf; - int indx, i; - int inhead = x->sr_inhead; - int intail = x->sr_intail; - unsigned char c; - t_tcpserver *y = x->sr_owner; - unsigned char *inbuf = x->sr_inbuf; - - if (intail == inhead) return (0); -#ifdef DEBUG - post ("%s_socketreceiver_doread: intail=%d inhead=%d", objName, intail, inhead); -#endif - - for (indx = intail, i = 0; indx != inhead; indx = (indx+1)&(INBUFSIZE-1), ++i) - { - c = *bp++ = inbuf[indx]; - y->x_msgoutbuf[i].a_w.w_float = (float)c; - } - if (i > 1) outlet_list(y->x_msgout, &s_list, i, y->x_msgoutbuf); - else outlet_float(y->x_msgout, y->x_msgoutbuf[0].a_w.w_float); - - // intail = (indx+1)&(INBUFSIZE-1); - x->sr_inhead = inhead; - x->sr_intail = indx;//intail; - return (1); -} - -static void tcpserver_socketreceiver_read(t_tcpserver_socketreceiver *x, int fd) -{ - char *semi; - int readto = (x->sr_inhead >= x->sr_intail ? INBUFSIZE : x->sr_intail-1); - int ret, i; - t_tcpserver *y = x->sr_owner; - - y->x_sock_fd = fd; - /* the input buffer might be full. If so, drop the whole thing */ - if (readto == x->sr_inhead) - { - post("%s: dropped message", objName); - x->sr_inhead = x->sr_intail = 0; - readto = INBUFSIZE; - } - else - { - ret = recv(fd, x->sr_inbuf + x->sr_inhead, - readto - x->sr_inhead, 0); - if (ret < 0) - { - sys_sockerror("tcpserver: recv"); - if (x->sr_notifier) (*x->sr_notifier)(x->sr_owner); - sys_rmpollfn(fd); - sys_closesocket(fd); - } - else if (ret == 0) - { - post("%s: connection closed on socket %d", objName, fd); - if (x->sr_notifier) (*x->sr_notifier)(x->sr_owner); - sys_rmpollfn(fd); - sys_closesocket(fd); - } - else - { -#ifdef DEBUG - post ("%s_socketreceiver_read: ret = %d", objName, ret); -#endif - x->sr_inhead += ret; - if (x->sr_inhead >= INBUFSIZE) x->sr_inhead = 0; - /* output client's IP and socket no. */ - for(i = 0; i < y->x_nconnections; i++) /* search for corresponding IP */ - { - if(y->x_fd[i] == y->x_sock_fd) - { -// outlet_symbol(x->x_connectionip, x->x_host[i]); - /* find sender's ip address and output it */ - y->x_addrbytes[0].a_w.w_float = (y->x_addr[i] & 0xFF000000)>>24; - y->x_addrbytes[1].a_w.w_float = (y->x_addr[i] & 0x0FF0000)>>16; - y->x_addrbytes[2].a_w.w_float = (y->x_addr[i] & 0x0FF00)>>8; - y->x_addrbytes[3].a_w.w_float = (y->x_addr[i] & 0x0FF); - outlet_list(y->x_addrout, &s_list, 4L, y->x_addrbytes); - break; - } - } - outlet_float(y->x_sockout, y->x_sock_fd); /* the socket number */ - tcpserver_socketreceiver_doread(x); - } - } -} - -static void tcpserver_socketreceiver_free(t_tcpserver_socketreceiver *x) -{ - free(x->sr_inbuf); - freebytes(x, sizeof(*x)); -} - -/* ---------------- main tcpserver (send) stuff --------------------- */ - -static void tcp_server_send_bytes(int client, t_tcpserver *x, int argc, t_atom *argv) -{ - static char byte_buf[MAX_UDP_RECEIVE];// arbitrary maximum similar to max IP packet size - int i, d; - unsigned char c; - float f, e; - char *bp; - int length, sent; - int result; - static double lastwarntime; - static double pleasewarn; - double timebefore; - double timeafter; - int late; - int sockfd = x->x_fd[client]; - - /* process & send data */ - if(sockfd >= 0) - { - for (i = 0; i < argc; ++i) - { - if (argv[i].a_type == A_FLOAT) - { - f = argv[i].a_w.w_float; - d = (int)f; - e = f - d; -#ifdef DEBUG - post("%s: argv[%d]: float:%f int:%d delta:%f", objName, i, f, d, e); -#endif - if (e != 0) - { - error("%s: item %d (%f) is not an integer", objName, i, f); - return; - } - if ((d < 0) || (d > 255)) - { - error("%s: item %d (%f) is not between 0 and 255", objName, i, f); - return; - } - c = (unsigned char)d; /* make sure it doesn't become negative; this only matters for post() */ -#ifdef DEBUG - post("%s: argv[%d]: %d", objName, i, c); -#endif - byte_buf[i] = c; - } - else - { - error("%s: item %d is not a float", objName, i); - return; - } - } - length = i; - if (length > 0) - { - for (bp = byte_buf, sent = 0; sent < length;) - { - timebefore = sys_getrealtime(); - result = send(sockfd, byte_buf, length-sent, 0); - timeafter = sys_getrealtime(); - late = (timeafter - timebefore > 0.005); - if (late || pleasewarn) - { - if (timeafter > lastwarntime + 2) - { - post("%s: send blocked %d msec", objName, - (int)(1000 * ((timeafter - timebefore) + pleasewarn))); - pleasewarn = 0; - lastwarntime = timeafter; - } - else if (late) pleasewarn += timeafter - timebefore; - } - if (result <= 0) - { - sys_sockerror("tcpserver: send"); - post("%s: could not send data to client %d", objName, client); - break; - } - else - { - sent += result; - bp += result; - } - } - } - } - else post("%s: not a valid socket number (%d)", objName, sockfd); -} - -/* send message to client using socket number */ -static void tcpserver_send(t_tcpserver *x, t_symbol *s, int argc, t_atom *argv) -{ - int i, sockfd; - int client = -1; - - if(x->x_nconnections < 0) - { - post("%s: no clients connected", objName); - return; - } - if(argc < 2) - { - post("%s: nothing to send", objName); - return; - } - /* get socket number of connection (first element in list) */ - if(argv[0].a_type == A_FLOAT) - { - sockfd = atom_getfloatarg(0, argc, argv); - for(i = 0; i < x->x_nconnections; i++) /* check if connection exists */ - { - if(x->x_fd[i] == sockfd) - { - client = i; /* the client we're sending to */ - break; - } - } - if(client == -1) - { - post("%s: no connection on socket %d", objName, sockfd); - return; - } - } - else - { - post("%s: no socket specified", objName); - return; - } - tcp_server_send_bytes(client, x, argc-1, &argv[1]); -} - -/* send message to client using client number - note that the client numbers might change in case a client disconnects! */ -/* clients start at 1 but our index starts at 0 */ -static void tcpserver_client_send(t_tcpserver *x, t_symbol *s, int argc, t_atom *argv) -{ - int sockfd, client; - - if(x->x_nconnections < 0) - { - post("%s: no clients connected", objName); - return; - } - if(argc < 2) - { - post("%s: nothing to send", objName); - return; - } - /* get number of client (first element in list) */ - if(argv[0].a_type == A_FLOAT) - client = atom_getfloatarg(0, argc, argv); - else - { - post("%s: no client specified", objName); - return; - } - if (!((client > 0) && (client < MAX_CONNECT))) - { - post("%s: client %d out of range [1..%d]", objName, client, MAX_CONNECT); - return; - } - --client;/* zero based index*/ - tcp_server_send_bytes(client, x, argc-1, &argv[1]); -} - -/* broadcasts a message to all connected clients */ -static void tcpserver_broadcast(t_tcpserver *x, t_symbol *s, int argc, t_atom *argv) -{ - int client; - - /* enumerate through the clients and send each the message */ - for(client = 0; client < x->x_nconnections; client++) /* check if connection exists */ - { - if(x->x_fd[client] >= 0) - { /* socket exists for this client */ - tcp_server_send_bytes(client, x, argc, argv); - break; - } - } -} - -/* ---------------- main tcpserver (receive) stuff --------------------- */ - -static void tcpserver_notify(t_tcpserver *x) -{ - int i, k; - - /* remove connection from list */ - for(i = 0; i < x->x_nconnections; i++) - { - if(x->x_fd[i] == x->x_sock_fd) - { - x->x_nconnections--; - post("%s: \"%s\" removed from list of clients", objName, x->x_host[i]->s_name); - x->x_host[i] = NULL; /* delete entry */ - x->x_fd[i] = -1; - /* rearrange list now: move entries to close the gap */ - for(k = i; k < x->x_nconnections; k++) - { - x->x_host[k] = x->x_host[k + 1]; - x->x_fd[k] = x->x_fd[k + 1]; - } - } - } - outlet_float(x->x_connectout, x->x_nconnections); -} - -static void tcpserver_connectpoll(t_tcpserver *x) -{ - struct sockaddr_in incomer_address; - int sockaddrl = (int) sizeof( struct sockaddr ); - int fd = accept(x->x_connectsocket, (struct sockaddr*)&incomer_address, &sockaddrl); - int i; - - if (fd < 0) post("%s: accept failed", objName); - else - { - t_tcpserver_socketreceiver *y = tcpserver_socketreceiver_new((void *)x, - (t_tcpserver_socketnotifier)tcpserver_notify, NULL);/* MP tcpserver_doit isn't used I think...*/ - if (!y) - { -#ifdef MSW - closesocket(fd); -#else - close(fd); -#endif - return; - } - sys_addpollfn(fd, (t_fdpollfn)tcpserver_socketreceiver_read, y); - x->x_nconnections++; - i = x->x_nconnections - 1; - x->x_host[i] = gensym(inet_ntoa(incomer_address.sin_addr)); - x->x_fd[i] = fd; - post("%s: accepted connection from %s on socket %d", - objName, x->x_host[i]->s_name, x->x_fd[i]); - outlet_float(x->x_connectout, x->x_nconnections); - outlet_float(x->x_sockout, x->x_fd[i]); /* the socket number */ - x->x_addr[i] = ntohl(incomer_address.sin_addr.s_addr); - x->x_addrbytes[0].a_w.w_float = (x->x_addr[i] & 0xFF000000)>>24; - x->x_addrbytes[1].a_w.w_float = (x->x_addr[i] & 0x0FF0000)>>16; - x->x_addrbytes[2].a_w.w_float = (x->x_addr[i] & 0x0FF00)>>8; - x->x_addrbytes[3].a_w.w_float = (x->x_addr[i] & 0x0FF); - outlet_list(x->x_addrout, &s_list, 4L, x->x_addrbytes); - } -} - -static void tcpserver_print(t_tcpserver *x) -{ - int i; - - if(x->x_nconnections > 0) - { - post("%s: %d open connections:", objName, x->x_nconnections); - for(i = 0; i < x->x_nconnections; i++) - { - post(" \"%s\" on socket %d", - x->x_host[i]->s_name, x->x_fd[i]); - } - } - else post("%s: no open connections", objName); -} - -static void *tcpserver_new(t_floatarg fportno) -{ - t_tcpserver *x; - int i; - struct sockaddr_in server; - int sockfd, portno = fportno; - - /* create a socket */ - sockfd = socket(AF_INET, SOCK_STREAM, 0); -#ifdef DEBUG - post("%s: receive socket %d", objName, sockfd); -#endif - if (sockfd < 0) - { - sys_sockerror("tcpserver: socket"); - return (0); - } - server.sin_family = AF_INET; - server.sin_addr.s_addr = INADDR_ANY; -#ifdef IRIX - /* this seems to work only in IRIX but is unnecessary in - Linux. Not sure what NT needs in place of this. */ - if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, 0, 0) < 0) - post("setsockopt failed\n"); -#endif - /* assign server port number */ - server.sin_port = htons((u_short)portno); - /* name the socket */ - if (bind(sockfd, (struct sockaddr *)&server, sizeof(server)) < 0) - { - sys_sockerror("tcpserver: bind"); - sys_closesocket(sockfd); - return (0); - } - x = (t_tcpserver *)pd_new(tcpserver_class); - x->x_msgout = outlet_new(&x->x_obj, &s_anything); /* 1st outlet for received data */ - /* streaming protocol */ - if (listen(sockfd, 5) < 0) - { - sys_sockerror("tcpserver: listen"); - sys_closesocket(sockfd); - sockfd = -1; - } - else - { - sys_addpollfn(sockfd, (t_fdpollfn)tcpserver_connectpoll, x); - x->x_connectout = outlet_new(&x->x_obj, &s_float); /* 2nd outlet for number of connected clients */ - x->x_sockout = outlet_new(&x->x_obj, &s_float); /* 3rd outlet for socket number of current client */ - x->x_addrout = outlet_new(&x->x_obj, &s_list); /* 4th outlet for ip address of current client */ - inbinbuf = binbuf_new(); - } - x->x_connectsocket = sockfd; - x->x_nconnections = 0; - for(i = 0; i < MAX_CONNECT; i++) x->x_fd[i] = -1; - /* prepare to convert the bytes in the buffer to floats in a list */ - for (i = 0; i < MAX_UDP_RECEIVE; ++i) - { - x->x_msgoutbuf[i].a_type = A_FLOAT; - x->x_msgoutbuf[i].a_w.w_float = 0; - } - for (i = 0; i < 4; ++i) - { - x->x_addrbytes[i].a_type = A_FLOAT; - x->x_addrbytes[i].a_w.w_float = 0; - } - - return (x); -} - -static void tcpserver_free(t_tcpserver *x) -{ - int i; - - for(i = 0; i < x->x_nconnections; i++) - { - sys_rmpollfn(x->x_fd[i]); - sys_closesocket(x->x_fd[i]); - } - if (x->x_connectsocket >= 0) - { - sys_rmpollfn(x->x_connectsocket); - sys_closesocket(x->x_connectsocket); - } - binbuf_free(inbinbuf); -} - -#ifdef MSW -__declspec(dllexport) -#endif -void tcpserver_setup(void) -{ - tcpserver_class = class_new(gensym(objName),(t_newmethod)tcpserver_new, (t_method)tcpserver_free, - sizeof(t_tcpserver), 0, A_DEFFLOAT, 0); - class_addmethod(tcpserver_class, (t_method)tcpserver_print, gensym("print"), 0); - class_addmethod(tcpserver_class, (t_method)tcpserver_send, gensym("send"), A_GIMME, 0); - class_addmethod(tcpserver_class, (t_method)tcpserver_client_send, gensym("client"), A_GIMME, 0); - class_addmethod(tcpserver_class, (t_method)tcpserver_broadcast, gensym("broadcast"), A_GIMME, 0); -} diff --git a/net/x_net_tcpclient.c b/net/x_net_tcpclient.c deleted file mode 100755 index 366d421..0000000 --- a/net/x_net_tcpclient.c +++ /dev/null @@ -1,443 +0,0 @@ -/* x_net_tcp_client.c Martin Peach 20060508, working version 20060512 */ -/* linux version 20060515 */ -/* x_net_tcp_client.c is based on netclient: */ -/* -------------------------- netclient ------------------------------------- */ -/* */ -/* Extended 'netsend', connects to 'netserver'. */ -/* Uses child thread to connect to server. Thus needs pd0.35-test17 or later. */ -/* Written by Olaf Matthes (olaf.matthes@gmx.de) */ -/* Get source at http://www.akustische-kunst.org/puredata/maxlib/ */ -/* */ -/* This program is free software; you can redistribute it and/or */ -/* modify it under the terms of the GNU General Public License */ -/* as published by the Free Software Foundation; either version 2 */ -/* of the License, or (at your option) any later version. */ -/* */ -/* This program 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 General Public License for more details. */ -/* */ -/* You should have received a copy of the GNU General Public License */ -/* along with this program; if not, write to the Free Software */ -/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -/* */ -/* Based on PureData by Miller Puckette and others. */ -/* */ -/* ---------------------------------------------------------------------------- */ -//define DEBUG - -#include "m_pd.h" -#include "s_stuff.h" - -#include <stdio.h> -#include <sys/types.h> -#include <string.h> -#include <pthread.h> -#if defined(UNIX) || defined(unix) -#include <sys/socket.h> -#include <sys/errno.h> -#include <netinet/in.h> -#include <netdb.h> -#include <stdio.h> -#include <unistd.h> -#define SOCKET_ERROR -1 -#else -#include <winsock2.h> -#endif - -#define DEFPOLLTIME 20 /* check for input every 20 ms */ - -static t_class *tcpclient_class; -static char objName[] = "tcpclient"; -#define MAX_UDP_RECEIVE 65536L // longer than data in maximum UDP packet - -typedef struct _tcpclient -{ - t_object x_obj; - t_clock *x_clock; - t_clock *x_poll; - t_outlet *x_msgout; - t_outlet *x_addrout; - t_outlet *x_outconnect; - int x_dump; // 1 = hexdump received bytes - int x_fd; // the socket - char *x_hostname; // address we want to connect to as text - int x_connectstate; // 0 = not connected, 1 = connected - int x_port; // port we're connected to - long x_addr; // address we're connected to as 32bit int - t_atom x_addrbytes[4]; // address we're connected to as 4 bytes - t_atom x_msgoutbuf[MAX_UDP_RECEIVE]; // received data as float atoms - unsigned char x_msginbuf[MAX_UDP_RECEIVE]; // received data as bytes - /* multithread stuff */ - pthread_t x_threadid; /* id of child thread */ - pthread_attr_t x_threadattr; /* attributes of child thread */ -} t_tcpclient; - -static void tcpclient_dump(t_tcpclient *x, t_float dump); -static void tcp_client_hexdump(unsigned char *buf, long len); -static void tcpclient_tick(t_tcpclient *x); -static void *tcpclient_child_connect(void *w); -static void tcpclient_connect(t_tcpclient *x, t_symbol *hostname, t_floatarg fportno); -static void tcpclient_disconnect(t_tcpclient *x); -static void tcpclient_send(t_tcpclient *x, t_symbol *s, int argc, t_atom *argv); -static void tcpclient_rcv(t_tcpclient *x); -static void tcpclient_poll(t_tcpclient *x); -static void *tcpclient_new(t_floatarg udpflag); -static void tcpclient_free(t_tcpclient *x); -#ifdef MSW -__declspec(dllexport) -#endif -void tcpclient_setup(void); - -static void tcpclient_dump(t_tcpclient *x, t_float dump) -{ - x->x_dump = (dump == 0)?0:1; -} - -static void tcp_client_hexdump(unsigned char *buf, long len) -{ -#define BYTES_PER_LINE 16 - char hexStr[(3*BYTES_PER_LINE)+1]; - char ascStr[BYTES_PER_LINE+1]; - long i, j, k = 0L; -#ifdef DEBUG - post("tcp_client_hexdump %d", len); -#endif - while (k < len) - { - for (i = j = 0; i < BYTES_PER_LINE; ++i, ++k, j+=3) - { - if (k < len) - { -#ifdef MSW - sprintf_s(&hexStr[j], 4, "%02X ", buf[k]); - sprintf_s(&ascStr[i], 2, "%c", ((buf[k] >= 32) && (buf[k] <= 126))? buf[k]: '.'); -#else - snprintf(&hexStr[j], 4, "%02X ", buf[k]); - snprintf(&ascStr[i], 2, "%c", ((buf[k] >= 32) && (buf[k] <= 126))? buf[k]: '.'); -#endif - } - else - { // the last line -#ifdef MSW - sprintf_s(&hexStr[j], 4, " "); - sprintf_s(&ascStr[i], 2, " "); -#else - snprintf(&hexStr[j], 4, " "); - snprintf(&ascStr[i], 2, " "); -#endif - } - } - post ("%s%s", hexStr, ascStr); - } -} - -static void tcpclient_tick(t_tcpclient *x) -{ - outlet_float(x->x_outconnect, 1); -} - -static void *tcpclient_child_connect(void *w) -{ - t_tcpclient *x = (t_tcpclient*) w; - struct sockaddr_in server; - struct hostent *hp; - int sockfd; - - if (x->x_fd >= 0) - { - error("%s_connect: already connected", objName); - return (x); - } - - /* create a socket */ - sockfd = socket(AF_INET, SOCK_STREAM, 0); -#ifdef DEBUG - post("%s: send socket %d\n", objName, sockfd); -#endif - if (sockfd < 0) - { - sys_sockerror("tcpclient: socket"); - return (x); - } - /* connect socket using hostname provided in command line */ - server.sin_family = AF_INET; - hp = gethostbyname(x->x_hostname); - if (hp == 0) - { - sys_sockerror("tcpclient: bad host?\n"); - return (x); - } - memcpy((char *)&server.sin_addr, (char *)hp->h_addr, hp->h_length); - - /* assign client port number */ - server.sin_port = htons((u_short)x->x_port); - - post("%s: connecting socket %d to port %d", objName, sockfd, x->x_port); - /* try to connect */ - if (connect(sockfd, (struct sockaddr *) &server, sizeof (server)) < 0) - { - sys_sockerror("tcpclient: connecting stream socket"); - sys_closesocket(sockfd); - return (x); - } - x->x_fd = sockfd; - x->x_addr = ntohl(*(long *)hp->h_addr); - /* outlet_float is not threadsafe ! */ - // outlet_float(x->x_obj.ob_outlet, 1); - x->x_connectstate = 1; - /* use callback instead to set outlet */ - clock_delay(x->x_clock, 0); - return (x); -} - -static void tcpclient_connect(t_tcpclient *x, t_symbol *hostname, t_floatarg fportno) -{ - /* we get hostname and port and pass them on - to the child thread that establishes the connection */ - x->x_hostname = hostname->s_name; - x->x_port = fportno; - x->x_connectstate = 0; - /* start child thread */ - if(pthread_create(&x->x_threadid, &x->x_threadattr, tcpclient_child_connect, x) < 0) - post("%s: could not create new thread", objName); -} - -static void tcpclient_disconnect(t_tcpclient *x) -{ - if (x->x_fd >= 0) - { - sys_closesocket(x->x_fd); - x->x_fd = -1; - x->x_connectstate = 0; - outlet_float(x->x_outconnect, 0); - post("%s: disconnected", objName); - } - else post("%s: not connected", objName); -} - -static void tcpclient_send(t_tcpclient *x, t_symbol *s, int argc, t_atom *argv) -{ - static char byte_buf[65536];// arbitrary maximum similar to max IP packet size - int i, d; - unsigned char c; - float f, e; - char *bp; - int length, sent; - int result; - static double lastwarntime; - static double pleasewarn; - double timebefore; - double timeafter; - int late; - -#ifdef DEBUG - post("s: %s", s->s_name); - post("argc: %d", argc); -#endif - - for (i = 0; i < argc; ++i) - { - if (argv[i].a_type == A_FLOAT) - { - f = argv[i].a_w.w_float; - d = (int)f; - e = f - d; -#ifdef DEBUG - post("%s: argv[%d]: float:%f int:%d delta:%f", objName, i, f, d, e); -#endif - if (e != 0) - { - error("%s_send: item %d (%f) is not an integer", objName, i, f); - return; - } - if ((d < 0) || (d > 255)) - { - error("%s: item %d (%f) is not between 0 and 255", objName, i, f); - return; - } - c = (unsigned char)d; -#ifdef DEBUG - post("%s_send: argv[%d]: %d", objName, i, c); -#endif - byte_buf[i] = c; - } - else - { - error("%s_send: item %d is not a float", objName, i); - return; - } - } - - length = i; - if ((x->x_fd >= 0) && (length > 0)) - { - for (bp = byte_buf, sent = 0; sent < length;) - { - timebefore = sys_getrealtime(); - result = send(x->x_fd, byte_buf, length-sent, 0); - timeafter = sys_getrealtime(); - late = (timeafter - timebefore > 0.005); - if (late || pleasewarn) - { - if (timeafter > lastwarntime + 2) - { - post("%s_send blocked %d msec", objName, - (int)(1000 * ((timeafter - timebefore) + pleasewarn))); - pleasewarn = 0; - lastwarntime = timeafter; - } - else if (late) pleasewarn += timeafter - timebefore; - } - if (result <= 0) - { - sys_sockerror("tcpclient_send"); - tcpclient_disconnect(x); - break; - } - else - { - sent += result; - bp += result; - } - } - } - else error("%s: not connected", objName); -} - -static void tcpclient_rcv(t_tcpclient *x) -{ - int sockfd = x->x_fd; - int ret; - int i; - fd_set readset; - fd_set exceptset; - struct timeval ztout; - - if(x->x_connectstate) - { - /* check if we can read/write from/to the socket */ - FD_ZERO(&readset); - FD_ZERO(&exceptset); - FD_SET(x->x_fd, &readset ); - FD_SET(x->x_fd, &exceptset ); - - ztout.tv_sec = 0; - ztout.tv_usec = 0; - - ret = select(sockfd+1, &readset, NULL, &exceptset, &ztout); - if(ret < 0) - { - error("%s: unable to read from socket", objName); - sys_closesocket(sockfd); - return; - } - if(FD_ISSET(sockfd, &readset) || FD_ISSET(sockfd, &exceptset)) - { - /* read from server */ - ret = recv(sockfd, x->x_msginbuf, MAX_UDP_RECEIVE, 0); - if(ret > 0) - { -#ifdef DEBUG - x->x_msginbuf[ret] = 0; - post("%s: received %d bytes ", objName, ret); -#endif - if (x->x_dump)tcp_client_hexdump(x->x_msginbuf, ret); - for (i = 0; i < ret; ++i) - { - /* convert the bytes in the buffer to floats in a list */ - x->x_msgoutbuf[i].a_w.w_float = (float)x->x_msginbuf[i]; - } - /* find sender's ip address and output it */ - x->x_addrbytes[0].a_w.w_float = (x->x_addr & 0xFF000000)>>24; - x->x_addrbytes[1].a_w.w_float = (x->x_addr & 0x0FF0000)>>16; - x->x_addrbytes[2].a_w.w_float = (x->x_addr & 0x0FF00)>>8; - x->x_addrbytes[3].a_w.w_float = (x->x_addr & 0x0FF); - outlet_list(x->x_addrout, &s_list, 4L, x->x_addrbytes); - /* send the list out the outlet */ - if (ret > 1) outlet_list(x->x_msgout, &s_list, ret, x->x_msgoutbuf); - else outlet_float(x->x_msgout, x->x_msgoutbuf[0].a_w.w_float); - } - else - { - if (ret < 0) - { - sys_sockerror("tcpclient: recv"); - tcpclient_disconnect(x); - } - else - { - post("%s: connection closed for socket %d\n", objName, sockfd); - tcpclient_disconnect(x); - } - } - } - } - else post("%s: not connected", objName); -} - -static void tcpclient_poll(t_tcpclient *x) -{ - if(x->x_connectstate) - tcpclient_rcv(x); /* try to read in case we're connected */ - clock_delay(x->x_poll, DEFPOLLTIME); /* see you later */ -} - -static void *tcpclient_new(t_floatarg udpflag) -{ - int i; - - t_tcpclient *x = (t_tcpclient *)pd_new(tcpclient_class); - x->x_msgout = outlet_new(&x->x_obj, &s_anything); /* received data */ - x->x_addrout = outlet_new(&x->x_obj, &s_list); - x->x_outconnect = outlet_new(&x->x_obj, &s_float); /* connection state */ - x->x_clock = clock_new(x, (t_method)tcpclient_tick); - x->x_poll = clock_new(x, (t_method)tcpclient_poll); - x->x_fd = -1; - /* convert the bytes in the buffer to floats in a list */ - for (i = 0; i < MAX_UDP_RECEIVE; ++i) - { - x->x_msgoutbuf[i].a_type = A_FLOAT; - x->x_msgoutbuf[i].a_w.w_float = 0; - } - for (i = 0; i < 4; ++i) - { - x->x_addrbytes[i].a_type = A_FLOAT; - x->x_addrbytes[i].a_w.w_float = 0; - } - x->x_addr = 0L; - /* prepare child thread */ - if(pthread_attr_init(&x->x_threadattr) < 0) - post("%s: warning: could not prepare child thread", objName); - if(pthread_attr_setdetachstate(&x->x_threadattr, PTHREAD_CREATE_DETACHED) < 0) - post("%s: warning: could not prepare child thread", objName); - clock_delay(x->x_poll, 0); /* start polling the input */ - return (x); -} - -static void tcpclient_free(t_tcpclient *x) -{ - tcpclient_disconnect(x); - clock_free(x->x_poll); - clock_free(x->x_clock); -} - -#ifdef MSW -__declspec(dllexport) -#endif -void tcpclient_setup(void) -{ - tcpclient_class = class_new(gensym(objName), (t_newmethod)tcpclient_new, - (t_method)tcpclient_free, - sizeof(t_tcpclient), 0, A_DEFFLOAT, 0); - class_addmethod(tcpclient_class, (t_method)tcpclient_connect, gensym("connect") - , A_SYMBOL, A_FLOAT, 0); - class_addmethod(tcpclient_class, (t_method)tcpclient_disconnect, gensym("disconnect"), 0); - class_addmethod(tcpclient_class, (t_method)tcpclient_send, gensym("send"), A_GIMME, 0); - class_addmethod(tcpclient_class, (t_method)tcpclient_rcv, gensym("receive"), 0); - class_addmethod(tcpclient_class, (t_method)tcpclient_rcv, gensym("rcv"), 0); - class_addmethod(tcpclient_class, (t_method)tcpclient_dump, gensym("dump"), A_FLOAT, 0); -} - -/* end of x_net_tcp.c */ |