+++ /dev/null
-/* $Id$ */
-
-/* transport - low level communication */
-
-/* Authors: Martin Quinson */
-/* Copyright (C) 2004 Martin Quinson. */
-
-/* This program is free software; you can redistribute it and/or modify it
- under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "gras/Transport/transport_private.h"
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(transport,gras,"Conveying bytes over the network");
-XBT_LOG_NEW_SUBCATEGORY(raw_trp,transport,"Conveying bytes over the network without formating");
-
-static xbt_dict_t _gras_trp_plugins; /* All registered plugins */
-static void gras_trp_plugin_free(void *p); /* free one of the plugins */
-
-static void
-gras_trp_plugin_new(const char *name, gras_trp_setup_t setup) {
- xbt_error_t errcode;
-
- gras_trp_plugin_t *plug = xbt_new0(gras_trp_plugin_t, 1);
-
- DEBUG1("Create plugin %s",name);
-
- plug->name=xbt_strdup(name);
-
- errcode = setup(plug);
- switch (errcode) {
- case mismatch_error:
- /* SG plugin return mismatch when in RL mode (and vice versa) */
- xbt_free(plug->name);
- xbt_free(plug);
- break;
-
- case no_error:
- xbt_dict_set(_gras_trp_plugins,
- name, plug, gras_trp_plugin_free);
- break;
-
- default:
- DIE_IMPOSSIBLE;
- }
-
-}
-
-void gras_trp_init(void){
- /* make room for all plugins */
- _gras_trp_plugins=xbt_dict_new();
-
- /* Add them */
- gras_trp_plugin_new("tcp", gras_trp_tcp_setup);
- gras_trp_plugin_new("file",gras_trp_file_setup);
- gras_trp_plugin_new("sg",gras_trp_sg_setup);
-
- /* buf is composed, so it must come after the others */
- gras_trp_plugin_new("buf", gras_trp_buf_setup);
-
-}
-
-void
-gras_trp_exit(void){
- xbt_dict_free(&_gras_trp_plugins);
-}
-
-
-void gras_trp_plugin_free(void *p) {
- gras_trp_plugin_t *plug = p;
-
- if (plug) {
- if (plug->exit) {
- plug->exit(plug);
- } else if (plug->data) {
- DEBUG1("Plugin %s lacks exit(). Free data anyway.",plug->name);
- xbt_free(plug->data);
- }
-
- xbt_free(plug->name);
- xbt_free(plug);
- }
-}
-
-
-/**
- * gras_trp_socket_new:
- *
- * Malloc a new socket, and initialize it with defaults
- */
-void gras_trp_socket_new(int incoming,
- gras_socket_t *dst) {
-
- gras_socket_t sock=xbt_new0(s_gras_socket_t,1);
-
- DEBUG1("Create a new socket (%p)", (void*)sock);
-
- sock->plugin = NULL;
- sock->sd = -1;
- sock->data = NULL;
-
- sock->incoming = incoming ? 1:0;
- sock->outgoing = incoming ? 0:1;
- sock->accepting = incoming ? 1:0;
-
- sock->port = -1;
- sock->peer_port = -1;
- sock->peer_name = NULL;
- sock->raw = 0;
-
- *dst = sock;
-
- xbt_dynar_push(gras_socketset_get(),dst);
-}
-
-
-/**
- * gras_socket_server_ext:
- *
- * Opens a server socket and make it ready to be listened to.
- * In real life, you'll get a TCP socket.
- */
-xbt_error_t
-gras_socket_server_ext(unsigned short port,
-
- unsigned long int bufSize,
- int raw,
-
- /* OUT */ gras_socket_t *dst) {
-
- xbt_error_t errcode;
- gras_trp_plugin_t *trp;
- gras_socket_t sock;
-
- *dst = NULL;
-
- DEBUG2("Create a server socket from plugin %s on port %d",
- gras_if_RL() ? "tcp" : "sg",
- port);
- TRY(gras_trp_plugin_get_by_name("buf",&trp));
-
- /* defaults settings */
- gras_trp_socket_new(1,&sock);
- sock->plugin= trp;
- sock->port=port;
- sock->bufSize = bufSize;
- sock->raw = raw;
-
- /* Call plugin socket creation function */
- errcode = trp->socket_server(trp, sock);
- DEBUG3("in=%c out=%c accept=%c",
- sock->incoming?'y':'n',
- sock->outgoing?'y':'n',
- sock->accepting?'y':'n');
-
- if (errcode != no_error) {
- xbt_free(sock);
- return errcode;
- }
-
- *dst = sock;
-
- return no_error;
-}
-
-/**
- * gras_socket_client_ext:
- *
- * Opens a client socket to a remote host.
- * In real life, you'll get a TCP socket.
- */
-xbt_error_t
-gras_socket_client_ext(const char *host,
- unsigned short port,
-
- unsigned long int bufSize,
- int raw,
-
- /* OUT */ gras_socket_t *dst) {
-
- xbt_error_t errcode;
- gras_trp_plugin_t *trp;
- gras_socket_t sock;
-
- *dst = NULL;
-
- TRY(gras_trp_plugin_get_by_name("buf",&trp));
-
- DEBUG1("Create a client socket from plugin %s",gras_if_RL() ? "tcp" : "sg");
- /* defaults settings */
- gras_trp_socket_new(0,&sock);
- sock->plugin= trp;
- sock->peer_port = port;
- sock->peer_name = (char*)strdup(host?host:"localhost");
- sock->bufSize = bufSize;
- sock->raw = raw;
-
- /* plugin-specific */
- errcode= (*trp->socket_client)(trp, sock);
- DEBUG3("in=%c out=%c accept=%c",
- sock->incoming?'y':'n',
- sock->outgoing?'y':'n',
- sock->accepting?'y':'n');
-
- if (errcode != no_error) {
- xbt_free(sock);
- return errcode;
- }
-
- *dst = sock;
-
- return no_error;
-}
-
-/**
- * gras_socket_server:
- *
- * Opens a server socket and make it ready to be listened to.
- * In real life, you'll get a TCP socket.
- */
-xbt_error_t
-gras_socket_server(unsigned short port,
- /* OUT */ gras_socket_t *dst) {
- return gras_socket_server_ext(port,32,0,dst);
-}
-
-/**
- * gras_socket_client:
- *
- * Opens a client socket to a remote host.
- * In real life, you'll get a TCP socket.
- */
-xbt_error_t
-gras_socket_client(const char *host,
- unsigned short port,
- /* OUT */ gras_socket_t *dst) {
- return gras_socket_client_ext(host,port,32,0,dst);
-}
-
-
-void gras_socket_close(gras_socket_t sock) {
- xbt_dynar_t sockets = gras_socketset_get();
- gras_socket_t sock_iter;
- int cursor;
-
- /* FIXME: Issue an event when the socket is closed */
- if (sock) {
- xbt_dynar_foreach(sockets,cursor,sock_iter) {
- if (sock == sock_iter) {
- xbt_dynar_cursor_rm(sockets,&cursor);
- if ( sock->plugin->socket_close)
- (* sock->plugin->socket_close)(sock);
-
- /* free the memory */
- if (sock->peer_name)
- xbt_free(sock->peer_name);
- xbt_free(sock);
- return;
- }
- }
- WARN0("Ignoring request to free an unknown socket");
- }
-}
-
-/**
- * gras_trp_chunk_send:
- *
- * Send a bunch of bytes from on socket
- */
-xbt_error_t
-gras_trp_chunk_send(gras_socket_t sd,
- char *data,
- long int size) {
- xbt_assert1(sd->outgoing,
- "Socket not suited for data send (outgoing=%c)",
- sd->outgoing?'y':'n');
- xbt_assert1(sd->plugin->chunk_send,
- "No function chunk_send on transport plugin %s",
- sd->plugin->name);
- return (*sd->plugin->chunk_send)(sd,data,size);
-}
-/**
- * gras_trp_chunk_recv:
- *
- * Receive a bunch of bytes from a socket
- */
-xbt_error_t
-gras_trp_chunk_recv(gras_socket_t sd,
- char *data,
- long int size) {
- xbt_assert0(sd->incoming,
- "Socket not suited for data receive");
- xbt_assert1(sd->plugin->chunk_recv,
- "No function chunk_recv on transport plugin %s",
- sd->plugin->name);
- return (sd->plugin->chunk_recv)(sd,data,size);
-}
-
-/**
- * gras_trp_flush:
- *
- * Make sure all pending communications are done
- */
-xbt_error_t
-gras_trp_flush(gras_socket_t sd) {
- return (sd->plugin->flush)(sd);
-}
-
-xbt_error_t
-gras_trp_plugin_get_by_name(const char *name,
- gras_trp_plugin_t **dst){
-
- return xbt_dict_get(_gras_trp_plugins,name,(void**)dst);
-}
-
-int gras_socket_my_port (gras_socket_t sock) {
- return sock->port;
-}
-int gras_socket_peer_port(gras_socket_t sock) {
- return sock->peer_port;
-}
-char *gras_socket_peer_name(gras_socket_t sock) {
- return sock->peer_name;
-}
-
-xbt_error_t gras_socket_raw_send(gras_socket_t peer,
- unsigned int timeout,
- unsigned long int exp_size,
- unsigned long int msg_size) {
- xbt_error_t errcode;
- char *chunk = xbt_malloc(msg_size);
- int exp_sofar;
-
- xbt_assert0(peer->raw,"Asked to send raw data on a regular socket");
- for (exp_sofar=0; exp_sofar < exp_size; exp_sofar += msg_size) {
- CDEBUG5(raw_trp,"Sent %d of %lu (msg_size=%ld) to %s:%d",
- exp_sofar,exp_size,msg_size,
- gras_socket_peer_name(peer), gras_socket_peer_port(peer));
- TRY(gras_trp_chunk_send(peer,chunk,msg_size));
- }
- CDEBUG5(raw_trp,"Sent %d of %lu (msg_size=%ld) to %s:%d",
- exp_sofar,exp_size,msg_size,
- gras_socket_peer_name(peer), gras_socket_peer_port(peer));
-
- xbt_free(chunk);
- return no_error;/* gras_socket_raw_exchange(peer,1,timeout,expSize,msgSize); */
-}
-
-xbt_error_t gras_socket_raw_recv(gras_socket_t peer,
- unsigned int timeout,
- unsigned long int exp_size,
- unsigned long int msg_size){
-
- xbt_error_t errcode;
- char *chunk = xbt_malloc(msg_size);
- int exp_sofar;
-
- xbt_assert0(peer->raw,"Asked to recveive raw data on a regular socket\n");
- for (exp_sofar=0; exp_sofar < exp_size; exp_sofar += msg_size) {
- CDEBUG5(raw_trp,"Recvd %d of %lu (msg_size=%ld) from %s:%d",
- exp_sofar,exp_size,msg_size,
- gras_socket_peer_name(peer), gras_socket_peer_port(peer));
- TRY(gras_trp_chunk_recv(peer,chunk,msg_size));
- }
- CDEBUG5(raw_trp,"Recvd %d of %lu (msg_size=%ld) from %s:%d",
- exp_sofar,exp_size,msg_size,
- gras_socket_peer_name(peer), gras_socket_peer_port(peer));
-
- xbt_free(chunk);
- return no_error;/* gras_socket_raw_exchange(peer,0,timeout,expSize,msgSize); */
-}
