1
/* buffered transport using the TCP plugin or a custom one */
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/* Copyright (c) 2004, 2005, 2006, 2007, 2009, 2010. The SimGrid Team.
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* All rights reserved. */
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/* This program is free software; you can redistribute it and/or modify it
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* under the terms of the license (GNU LGPL) which comes with this package. */
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#include <string.h> /* memset */
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#include "xbt/sysdep.h"
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#include "xbt/xbt_socket_private.h"
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#include "gras/Transport/transport_interface.h" /* FIXME */
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#include "gras/Virtu/virtu_interface.h" /* FIXME */
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#include "gras/Msg/msg_interface.h" /* FIXME */
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extern int gras_trp_libdata_id; /* FIXME */
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/* FIXME maybe READV is sometime a good thing? */
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XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_trp_tcp, xbt_trp,
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"TCP buffered transport");
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*** Specific socket part
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int port; /* port on this side */
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int peer_port; /* port on the other side */
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char *peer_name; /* hostname of the other side */
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char *peer_proc; /* process on the other side */
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} s_xbt_trp_tcp_sock_data_t, *xbt_trp_tcp_sock_data_t;
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typedef enum { buffering_buf, buffering_iov } buffering_kind;
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int pos; /* for receive; not exchanged over the net */
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struct s_xbt_trp_bufdata {
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xbt_trp_buf_t out_buf;
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xbt_dynar_t out_buf_v;
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/*****************************/
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/****[ SOCKET MANAGEMENT ]****/
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/*****************************/
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/* we exchange port number on client side on socket creation,
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so we need to be able to talk right now. */
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static XBT_INLINE void xbt_trp_tcp_send(xbt_socket_t sock,
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unsigned long int size);
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static int xbt_trp_tcp_recv(xbt_socket_t sock, char *data,
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unsigned long int size);
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static int xbt_trp_tcp_proto_number(void);
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static void xbt_trp_sock_socket_close(xbt_socket_t sock);
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void xbt_trp_sock_socket_client(xbt_trp_plugin_t ignored,
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/* OUT */ xbt_socket_t sock)
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xbt_trp_tcp_sock_data_t sockdata = xbt_new(s_xbt_trp_tcp_sock_data_t,1);
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sockdata->port = port;
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sockdata->peer_proc = NULL;
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sockdata->peer_port = port;
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sockdata->peer_name = (char *) xbt_strdup(host ? host : "localhost");
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sock->data = sockdata;
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struct sockaddr_in addr;
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struct in_addr *haddr;
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int size = sock->buf_size;
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uint32_t myport = htonl(((gras_trp_procdata_t)
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(gras_trp_libdata_id))->myport);
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sock->incoming = 1; /* TCP sockets are duplex'ed */
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sock->sd = socket(AF_INET, SOCK_STREAM, 0);
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THROWF(system_error, 0, "Failed to create socket: %s",
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sock_errstr(sock_errno));
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(sock->sd, SOL_SOCKET, SO_RCVBUF, (char *) &size, sizeof(size))
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|| setsockopt(sock->sd, SOL_SOCKET, SO_SNDBUF, (char *) &size,
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XBT_VERB("setsockopt failed, cannot set buffer size: %s",
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sock_errstr(sock_errno));
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he = gethostbyname(sockdata->peer_name);
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THROWF(system_error, 0, "Failed to lookup hostname %s: %s",
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sockdata->peer_name, sock_errstr(sock_errno));
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haddr = ((struct in_addr *) (he->h_addr_list)[0]);
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memset(&addr, 0, sizeof(struct sockaddr_in));
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memcpy(&addr.sin_addr, haddr, sizeof(struct in_addr));
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addr.sin_family = AF_INET;
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addr.sin_port = htons(sockdata->peer_port);
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if (connect(sock->sd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
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THROWF(system_error, 0,
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"Failed to connect socket to %s:%d (%s)",
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sockdata->peer_name, sockdata->peer_port, sock_errstr(sock_errno));
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xbt_trp_tcp_send(sock, (char *) &myport, sizeof(uint32_t));
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XBT_DEBUG("peerport sent to %d", sockdata->peer_port);
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XBT_VERB("Connect to %s:%d (sd=%d, port %d here)",
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sockdata->peer_name, sockdata->peer_port, sock->sd, sockdata->port);
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* gras_trp_sock_socket_server:
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* Open a socket used to receive messages.
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void xbt_trp_sock_socket_server(xbt_trp_plugin_t ignored,
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int size = sock->buf_size;
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struct sockaddr_in server;
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xbt_trp_tcp_sock_data_t sockdata = xbt_new(s_xbt_trp_tcp_sock_data_t,1);
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sockdata->port = port;
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sockdata->peer_port = -1;
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sockdata->peer_name = NULL;
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sockdata->peer_proc = NULL;
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sock->data = sockdata;
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sock->outgoing = 1; /* TCP => duplex mode */
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server.sin_port = htons((u_short) sockdata->port);
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server.sin_addr.s_addr = INADDR_ANY;
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server.sin_family = AF_INET;
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if ((sock->sd = socket(AF_INET, SOCK_STREAM, 0)) < 0)
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THROWF(system_error, 0, "Socket allocation failed: %s",
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sock_errstr(sock_errno));
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(sock->sd, SOL_SOCKET, SO_REUSEADDR, (char *) &on, sizeof(on)))
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THROWF(system_error, 0,
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"setsockopt failed, cannot condition the socket: %s",
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sock_errstr(sock_errno));
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if (setsockopt(sock->sd, SOL_SOCKET, SO_RCVBUF,
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(char *) &size, sizeof(size))
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|| setsockopt(sock->sd, SOL_SOCKET, SO_SNDBUF,
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(char *) &size, sizeof(size))) {
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XBT_VERB("setsockopt failed, cannot set buffer size: %s",
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sock_errstr(sock_errno));
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if (bind(sock->sd, (struct sockaddr *) &server, sizeof(server)) == -1) {
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THROWF(system_error, 0,
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"Cannot bind to port %d: %s", sockdata->port,
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sock_errstr(sock_errno));
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XBT_DEBUG("Listen on port %d (sd=%d)", sockdata->port, sock->sd);
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if (listen(sock->sd, 5) < 0) {
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THROWF(system_error, 0,
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"Cannot listen on port %d: %s",
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sockdata->port, sock_errstr(sock_errno));
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XBT_VERB("Openned a server socket on port %d (sd=%d)", sockdata->port,
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static xbt_socket_t xbt_trp_sock_socket_accept(xbt_socket_t sock)
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struct sockaddr_in peer_in;
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socklen_t peer_in_len = sizeof(peer_in);
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socklen_t s = sizeof(int);
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xbt_socket_new_ext(1, &res, sock->plugin, sock->buf_size, 0);
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sd = accept(sock->sd, (struct sockaddr *) &peer_in, &peer_in_len);
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tmp_errno = sock_errno;
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xbt_trp_sock_socket_close(sock);
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THROWF(system_error, 0,
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"Accept failed (%s). Droping server socket.",
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sock_errstr(tmp_errno));
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if (xbt_trp_tcp_proto_number() != -1)
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if (setsockopt(sd, xbt_trp_tcp_proto_number(), TCP_NODELAY, (char *) &i,s))
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if (setsockopt(sd, SOL_SOCKET, SO_KEEPALIVE, (char *) &i, s))
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THROWF(system_error, 0,
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"setsockopt failed, cannot condition the socket: %s",
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sock_errstr(tmp_errno));
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size = sock->buf_size;
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if (setsockopt(sd, SOL_SOCKET, SO_RCVBUF, (char *) &size, sizeof(size))
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|| setsockopt(sd, SOL_SOCKET, SO_SNDBUF, (char *) &size,
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XBT_VERB("setsockopt failed, cannot set buffer size: %s",
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sock_errstr(tmp_errno));
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res->plugin = sock->plugin;
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res->incoming = sock->incoming;
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res->outgoing = sock->outgoing;
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xbt_trp_tcp_sock_data_t sockdata = xbt_new(s_xbt_trp_tcp_sock_data_t, 1);
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res->data = sockdata;
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xbt_trp_tcp_recv(res, (char *) &hisport, sizeof(hisport));
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sockdata->peer_port = ntohl(hisport);
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XBT_DEBUG("peerport %d received", sockdata->peer_port);
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/* FIXME: Lock to protect inet_ntoa */
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if (((struct sockaddr *) &peer_in)->sa_family != AF_INET) {
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sockdata->peer_name = (char *) strdup("unknown");
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struct in_addr addrAsInAddr;
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addrAsInAddr.s_addr = peer_in.sin_addr.s_addr;
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tmp = inet_ntoa(addrAsInAddr);
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sockdata->peer_name = (char *) strdup(tmp);
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sockdata->peer_name = (char *) strdup("unknown");
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XBT_VERB("Accepted from %s:%d (sd=%d)", sockdata->peer_name, sockdata->peer_port, sd);
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xbt_dynar_push(((gras_trp_procdata_t)
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gras_libdata_by_id(gras_trp_libdata_id))->sockets, &res);
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/* FIXME we depend on GRAS here */
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static void xbt_trp_sock_socket_close(xbt_socket_t sock)
301
return; /* close only once */
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free(((xbt_trp_tcp_sock_data_t)sock->data)->peer_name);
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XBT_VERB("close tcp connection %d", sock->sd);
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gras_msg_listener_close_socket(sock->sd); /* FIXME */
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/************************************/
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/****[ end of SOCKET MANAGEMENT ]****/
313
/************************************/
316
/************************************/
317
/****[ UNBUFFERED DATA EXCHANGE ]****/
318
/************************************/
319
/* Temptation to merge this with file data exchange is great,
320
but doesn't work on BillWare (see tcp_write() in portable.h) */
321
static XBT_INLINE void xbt_trp_tcp_send(xbt_socket_t sock,
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unsigned long int size)
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status = tcp_write(sock->sd, data, (size_t) size);
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XBT_DEBUG("write(%d, %p, %lu);", sock->sd, data, size);
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if (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK)
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if (errno == EINTR || errno == EAGAIN)
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THROWF(system_error, 0, "write(%d,%p,%lu) failed: %s",
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sock->sd, data, size, sock_errstr(sock_errno));
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THROWF(system_error, 0, "file descriptor closed (%s)",
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sock_errstr(sock_errno));
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static XBT_INLINE int
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xbt_trp_tcp_recv_withbuffer(xbt_socket_t sock,
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unsigned long int size,
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unsigned long int bufsize)
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data[0] = sock->recvd_val;
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XBT_DEBUG("read(%d, %p, %lu) got %d so far (%s)",
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sock->sd, data + got, bufsize, got,
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hexa_str((unsigned char *) data, got, 0));
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status = tcp_read(sock->sd, data + got, (size_t) bufsize);
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THROWF(system_error, 0,
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"read(%d,%p,%lu) from %s:%d failed: %s; got %d so far",
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sock->sd, data + got, size, xbt_socket_peer_name(sock),
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xbt_socket_peer_port(sock), sock_errstr(sock_errno), got);
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XBT_DEBUG("Got %d more bytes (%s)", status,
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hexa_str((unsigned char *) data + got, status, 0));
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THROWF(system_error, errno,
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"Socket closed by remote side (got %d bytes before this)",
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static int xbt_trp_tcp_recv(xbt_socket_t sock,
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unsigned long int size)
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return xbt_trp_tcp_recv_withbuffer(sock, data, size, size);
406
/*******************************************/
407
/****[ end of UNBUFFERED DATA EXCHANGE ]****/
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/*******************************************/
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/**********************************/
411
/****[ BUFFERED DATA EXCHANGE ]****/
412
/**********************************/
414
/* Make sure the data is sent */
415
static void xbt_trp_bufiov_flush(xbt_socket_t sock)
421
xbt_trp_bufdata_t *data = sock->bufdata;
425
if (data->out == buffering_buf) {
426
if (XBT_LOG_ISENABLED(xbt_trp_tcp, xbt_log_priority_debug))
427
hexa_print("chunk to send ",
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(unsigned char *) data->out_buf.data, data->out_buf.size);
429
if ((data->out_buf.size - data->out_buf.pos) != 0) {
430
XBT_DEBUG("Send the chunk (size=%d) to %s:%d", data->out_buf.size,
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xbt_socket_peer_name(sock), xbt_socket_peer_port(sock));
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xbt_trp_tcp_send(sock, data->out_buf.data, data->out_buf.size);
433
XBT_VERB("Chunk sent (size=%d)", data->out_buf.size);
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data->out_buf.size = 0;
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if (data->out == buffering_iov) {
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XBT_DEBUG("Flush out iov");
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vect = sock->bufdata->out_buf_v;
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if ((size = xbt_dynar_length(vect))) {
442
XBT_DEBUG("Flush %d chunks out of this socket", size);
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writev(sock->sd, xbt_dynar_get_ptr(vect, 0), size);
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xbt_dynar_reset(vect);
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data->out_buf.size = 0; /* reset the buffer containing non-stable data */
449
if (data->in == buffering_iov) {
450
XBT_DEBUG("Flush in iov");
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vect = sock->bufdata->in_buf_v;
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if ((size = xbt_dynar_length(vect))) {
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XBT_DEBUG("Get %d chunks from of this socket", size);
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readv(sock->sd, xbt_dynar_get_ptr(vect, 0), size);
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xbt_dynar_reset(vect);
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xbt_trp_buf_send(xbt_socket_t sock,
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unsigned long int size,
468
xbt_trp_bufdata_t *data = (xbt_trp_bufdata_t *) sock->bufdata;
473
while (chunk_pos < size) {
474
/* size of the chunk to receive in that shot */
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min(size - chunk_pos, data->buffsize - data->out_buf.size);
477
XBT_DEBUG("Set the chars %d..%ld into the buffer; size=%lu, ctn=(%s)",
479
data->out_buf.size + thissize - 1, size,
480
hexa_str((unsigned char *) chunk, thissize, 0));
482
memcpy(data->out_buf.data + data->out_buf.size, chunk + chunk_pos,
485
data->out_buf.size += thissize;
486
chunk_pos += thissize;
487
XBT_DEBUG("New pos = %d; Still to send = %lu of %lu; ctn sofar=(%s)",
488
data->out_buf.size, size - chunk_pos, size,
489
hexa_str((unsigned char *) chunk, chunk_pos, 0));
491
if (data->out_buf.size == data->buffsize) /* out of space. Flush it */
492
xbt_trp_bufiov_flush(sock);
499
xbt_trp_buf_recv(xbt_socket_t sock, char *chunk, unsigned long int size)
502
xbt_trp_bufdata_t *data = sock->bufdata;
503
long int chunk_pos = 0;
507
while (chunk_pos < size) {
508
/* size of the chunk to receive in that shot */
511
if (data->in_buf.size == data->in_buf.pos) { /* out of data. Get more */
513
XBT_DEBUG("Get more data (size=%d,bufsize=%d)",
514
(int) MIN(size - chunk_pos, data->buffsize),
515
(int) data->buffsize);
518
xbt_trp_tcp_recv_withbuffer(sock, data->in_buf.data,
519
MIN(size - chunk_pos, data->buffsize),
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data->in_buf.pos = 0;
525
thissize = min(size - chunk_pos, data->in_buf.size - data->in_buf.pos);
526
memcpy(chunk + chunk_pos, data->in_buf.data + data->in_buf.pos,
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data->in_buf.pos += thissize;
530
chunk_pos += thissize;
531
XBT_DEBUG("New pos = %d; Still to receive = %lu of %lu. Ctn so far=(%s)",
532
data->in_buf.pos, size - chunk_pos, size,
533
hexa_str((unsigned char *) chunk, chunk_pos, 0));
535
/* indicate on need to the gras_select function that there is more to read on this socket so that it does not actually select */
536
sock->moredata = (data->in_buf.size > data->in_buf.pos);
537
XBT_DEBUG("There is %smore data", (sock->moredata ? "" : "no "));
543
/*****************************************/
544
/****[ end of BUFFERED DATA EXCHANGE ]****/
545
/*****************************************/
547
/********************************/
548
/****[ VECTOR DATA EXCHANGE ]****/
549
/********************************/
552
xbt_trp_iov_send(xbt_socket_t sock,
553
const char *chunk, unsigned long int size, int stable)
556
xbt_trp_bufdata_t *data = (xbt_trp_bufdata_t *) sock->bufdata;
559
XBT_DEBUG("Buffer one chunk to be sent later (%s)",
560
hexa_str((char *) chunk, size, 0));
562
elm.iov_len = (size_t) size;
565
/* data storage won't last until flush. Save it in a buffer if we can */
567
if (size > data->buffsize - data->out_buf.size) {
569
flush the socket, using data in its actual storage */
570
elm.iov_base = (void *) chunk;
571
xbt_dynar_push(data->out_buf_v, &elm);
573
xbt_trp_bufiov_flush(sock);
576
/* buffer big enough:
577
copy data into it, and chain it for upcoming writev */
578
memcpy(data->out_buf.data + data->out_buf.size, chunk, size);
579
elm.iov_base = (void *) (data->out_buf.data + data->out_buf.size);
580
data->out_buf.size += size;
582
xbt_dynar_push(data->out_buf_v, &elm);
586
/* data storage stable. Chain it */
588
elm.iov_base = (void *) chunk;
589
xbt_dynar_push(data->out_buf_v, &elm);
594
xbt_trp_iov_recv(gras_socket_t sock, char *chunk, unsigned long int size)
598
XBT_DEBUG("Buffer one chunk to be received later");
599
elm.iov_base = (void *) chunk;
600
elm.iov_len = (size_t) size;
601
xbt_dynar_push(sock->bufdata->in_buf_v, &elm);
607
/***************************************/
608
/****[ end of VECTOR DATA EXCHANGE ]****/
609
/***************************************/
613
*** Prototypes of BUFFERED
615
static xbt_socket_t xbt_trp_buf_init_sock(xbt_socket_t sock);
616
static void xbt_trp_buf_socket_client(xbt_trp_plugin_t self,
620
static void xbt_trp_buf_socket_server(xbt_trp_plugin_t self,
623
static xbt_socket_t xbt_trp_buf_socket_accept(xbt_socket_t sock);
625
static void xbt_trp_buf_socket_close(xbt_socket_t sd);
628
static xbt_socket_t xbt_trp_buf_init_sock(xbt_socket_t sock)
630
xbt_trp_bufdata_t *data = xbt_new(xbt_trp_bufdata_t, 1);
632
data->buffsize = 100 * 1024; /* 100k */
634
data->in_buf.size = 0;
635
data->in_buf.data = xbt_malloc(data->buffsize);
636
data->in_buf.pos = 0; /* useless, indeed, since size==pos */
638
data->out_buf.size = 0;
639
data->out_buf.data = xbt_malloc(data->buffsize);
640
data->out_buf.pos = data->out_buf.size;
643
data->in_buf_v = data->out_buf_v = NULL;
644
data->in_buf_v = xbt_dynar_new(sizeof(struct iovec), NULL);
645
data->out_buf_v = xbt_dynar_new(sizeof(struct iovec), NULL);
646
data->out = buffering_iov;
648
data->out = buffering_buf;
651
data->in = buffering_buf;
653
sock->bufdata = data;
658
*** Info about who's speaking
660
static int xbt_trp_tcp_my_port(xbt_socket_t s) {
661
xbt_trp_tcp_sock_data_t sockdata = s->data;
662
return sockdata->port;
665
static int xbt_trp_tcp_peer_port(xbt_socket_t s) {
666
xbt_trp_tcp_sock_data_t sockdata = s->data;
667
return sockdata->peer_port;
670
static const char* xbt_trp_tcp_peer_name(xbt_socket_t s) {
671
xbt_trp_tcp_sock_data_t sockdata = s->data;
672
return sockdata->peer_name;
675
static const char* xbt_trp_tcp_peer_proc(xbt_socket_t s) {
676
xbt_trp_tcp_sock_data_t sockdata = s->data;
677
return sockdata->peer_proc;
680
static void xbt_trp_tcp_peer_proc_set(xbt_socket_t s,char *name) {
681
xbt_trp_tcp_sock_data_t sockdata = s->data;
682
sockdata->peer_proc = xbt_strdup(name);
688
void xbt_trp_tcp_setup(xbt_trp_plugin_t plug)
690
plug->my_port = xbt_trp_tcp_my_port;
691
plug->peer_port = xbt_trp_tcp_peer_port;
692
plug->peer_name = xbt_trp_tcp_peer_name;
693
plug->peer_proc = xbt_trp_tcp_peer_proc;
694
plug->peer_proc_set = xbt_trp_tcp_peer_proc_set;
697
plug->socket_client = xbt_trp_buf_socket_client;
698
plug->socket_server = xbt_trp_buf_socket_server;
699
plug->socket_accept = xbt_trp_buf_socket_accept;
700
plug->socket_close = xbt_trp_buf_socket_close;
703
plug->send = xbt_trp_iov_send;
705
plug->send = xbt_trp_buf_send;
707
plug->recv = xbt_trp_buf_recv;
709
plug->raw_send = xbt_trp_tcp_send;
710
plug->raw_recv = xbt_trp_tcp_recv;
712
plug->flush = xbt_trp_bufiov_flush;
718
static void xbt_trp_buf_socket_client(xbt_trp_plugin_t self,
721
/* OUT */ xbt_socket_t sock)
723
xbt_trp_sock_socket_client(NULL, host, port, sock);
724
xbt_trp_buf_init_sock(sock);
728
* xbt_trp_buf_socket_server:
730
* Open a socket used to receive messages.
732
static void xbt_trp_buf_socket_server(xbt_trp_plugin_t self,
734
/* OUT */ xbt_socket_t sock)
736
xbt_trp_sock_socket_server(NULL, port, sock);
737
xbt_trp_buf_init_sock(sock);
740
static xbt_socket_t xbt_trp_buf_socket_accept(xbt_socket_t sock)
742
return xbt_trp_buf_init_sock(xbt_trp_sock_socket_accept(sock));
745
static void xbt_trp_buf_socket_close(xbt_socket_t sock)
747
xbt_trp_bufdata_t *data = sock->bufdata;
749
if (data->in_buf.size != data->in_buf.pos) {
750
XBT_WARN("Socket closed, but %d bytes were unread (size=%d,pos=%d)",
751
data->in_buf.size - data->in_buf.pos,
752
data->in_buf.size, data->in_buf.pos);
754
free(data->in_buf.data);
756
if (data->out_buf.size != data->out_buf.pos) {
757
XBT_DEBUG("Flush the socket before closing (in=%d,out=%d)",
758
data->in_buf.size, data->out_buf.size);
759
xbt_trp_bufiov_flush(sock);
761
free(data->out_buf.data);
764
if (data->in_buf_v) {
765
if (!xbt_dynar_is_empty(data->in_buf_v))
766
XBT_WARN("Socket closed, but some bytes were unread");
767
xbt_dynar_free(&data->in_buf_v);
769
if (data->out_buf_v) {
770
if (!xbt_dynar_is_empty(data->out_buf_v)) {
771
XBT_DEBUG("Flush the socket before closing");
772
xbt_trp_bufiov_flush(sock);
774
xbt_dynar_free(&data->out_buf_v);
779
xbt_trp_sock_socket_close(sock);
782
/****************************/
783
/****[ HELPER FUNCTIONS ]****/
784
/****************************/
787
* Returns the tcp protocol number from the network protocol data base, or -1 if not found
789
* getprotobyname() is not thread safe. We need to lock it.
791
static int xbt_trp_tcp_proto_number(void)
793
struct protoent *fetchedEntry;
794
static int returnValue = 0;
796
if (returnValue == 0) {
797
fetchedEntry = getprotobyname("tcp");
798
if (fetchedEntry == NULL) {
799
XBT_VERB("getprotobyname(tcp) gave NULL");
802
returnValue = fetchedEntry->p_proto;
809
#ifdef HAVE_WINSOCK_H
810
#define RETSTR( x ) case x: return #x
812
const char *xbt_wsa_err2string(int err)
821
RETSTR(WSAEWOULDBLOCK);
822
RETSTR(WSAEINPROGRESS);
825
RETSTR(WSAEDESTADDRREQ);
827
RETSTR(WSAEPROTOTYPE);
828
RETSTR(WSAENOPROTOOPT);
829
RETSTR(WSAEPROTONOSUPPORT);
830
RETSTR(WSAESOCKTNOSUPPORT);
831
RETSTR(WSAEOPNOTSUPP);
832
RETSTR(WSAEPFNOSUPPORT);
833
RETSTR(WSAEAFNOSUPPORT);
834
RETSTR(WSAEADDRINUSE);
835
RETSTR(WSAEADDRNOTAVAIL);
837
RETSTR(WSAENETUNREACH);
838
RETSTR(WSAENETRESET);
839
RETSTR(WSAECONNABORTED);
840
RETSTR(WSAECONNRESET);
844
RETSTR(WSAESHUTDOWN);
845
RETSTR(WSAETOOMANYREFS);
846
RETSTR(WSAETIMEDOUT);
847
RETSTR(WSAECONNREFUSED);
849
RETSTR(WSAENAMETOOLONG);
850
RETSTR(WSAEHOSTDOWN);
851
RETSTR(WSAEHOSTUNREACH);
852
RETSTR(WSAENOTEMPTY);
858
RETSTR(WSASYSNOTREADY);
859
RETSTR(WSAVERNOTSUPPORTED);
860
RETSTR(WSANOTINITIALISED);
863
#ifdef HAVE_WINSOCK2_H
865
RETSTR(WSAECANCELLED);
866
RETSTR(WSAEINVALIDPROCTABLE);
867
RETSTR(WSAEINVALIDPROVIDER);
868
RETSTR(WSASYSCALLFAILURE);
869
RETSTR(WSASERVICE_NOT_FOUND);
870
RETSTR(WSATYPE_NOT_FOUND);
871
RETSTR(WSA_E_NO_MORE);
872
RETSTR(WSA_E_CANCELLED);
874
#endif /* HAVE_WINSOCK2_H */
876
RETSTR(WSAHOST_NOT_FOUND);
877
RETSTR(WSATRY_AGAIN);
878
RETSTR(WSANO_RECOVERY);
881
return "unknown WSA error";
883
#endif /* HAVE_WINSOCK_H */
885
/***********************************/
886
/****[ end of HELPER FUNCTIONS ]****/
887
/***********************************/