X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6511b78ff810ead55a110d42b01a08255a55b56d..791f832cea6e18633bc614246193551293542bbd:/src/gras/Transport/transport_plugin_sg.c?ds=sidebyside diff --git a/src/gras/Transport/transport_plugin_sg.c b/src/gras/Transport/transport_plugin_sg.c index 822812e177..c12cb01f85 100644 --- a/src/gras/Transport/transport_plugin_sg.c +++ b/src/gras/Transport/transport_plugin_sg.c @@ -6,114 +6,378 @@ /* exchange in SG realm is implemented directly without mimicing real life */ /* This would be terribly unefficient. */ -/* Authors: Martin Quinson */ -/* Copyright (C) 2004 Martin Quinson. */ +/* Copyright (c) 2004 Martin Quinson. All rights reserved. */ /* 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. */ + * under the terms of the license (GNU LGPL) which comes with this package. */ -#include "gras_private.h" -#include "transport_private.h" +#include "msg/msg.h" -GRAS_LOG_EXTERNAL_CATEGORY(transport); -GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(trp_sg,transport); +#include "transport_private.h" +#include "gras/Virtu/virtu_sg.h" +XBT_LOG_EXTERNAL_CATEGORY(transport); +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(trp_sg,transport,"SimGrid pseudo-transport"); /*** *** Prototypes ***/ -void gras_trp_sg_exit(gras_trp_plugin_t *plugin); -gras_error_t gras_trp_sg_socket_client(const char *host, - unsigned short port, - int raw, - /* OUT */ gras_socket_t **dst); -gras_error_t gras_trp_sg_socket_server(unsigned short port, - int raw, - /* OUT */ gras_socket_t **dst); -void gras_trp_sg_socket_close(gras_socket_t **sd); -gras_error_t gras_trp_sg_select(double timeOut, - gras_socket_t **sd); - -gras_error_t gras_trp_sg_bloc_send(gras_socket_t *sd, - void *data, - size_t size, - double timeOut); - -gras_error_t gras_trp_sg_bloc_recv(gras_socket_t *sd, - void *data, - size_t size, - double timeOut); -gras_error_t gras_trp_sg_flush(gras_socket_t *sd); +void hexa_print(unsigned char *data, int size); /* in gras.c */ + +/* retrieve the port record associated to a numerical port on an host */ +static xbt_error_t find_port(gras_hostdata_t *hd, int port, + gras_sg_portrec_t *hpd); + + +xbt_error_t gras_trp_sg_socket_client(gras_trp_plugin_t *self, + /* OUT */ gras_socket_t sock); +xbt_error_t gras_trp_sg_socket_server(gras_trp_plugin_t *self, + /* OUT */ gras_socket_t sock); +void gras_trp_sg_socket_close(gras_socket_t sd); + +xbt_error_t gras_trp_sg_chunk_send(gras_socket_t sd, + const char *data, + unsigned long int size); + +xbt_error_t gras_trp_sg_chunk_recv(gras_socket_t sd, + char *data, + unsigned long int size); /*** *** Specific plugin part ***/ typedef struct { - int dummy; -} gras_trp_sg_specific_t; + int placeholder; /* nothing plugin specific so far */ +} gras_trp_sg_plug_data_t; -/*** - *** Specific socket part - ***/ /*** *** Code ***/ +static xbt_error_t find_port(gras_hostdata_t *hd, int port, + gras_sg_portrec_t *hpd) { + int cpt; + gras_sg_portrec_t pr; + + xbt_assert0(hd,"Please run gras_process_init on each process"); + + xbt_dynar_foreach(hd->ports, cpt, pr) { + if (pr.port == port) { + memcpy(hpd,&pr,sizeof(gras_sg_portrec_t)); + return no_error; + } + } + return mismatch_error; +} + + +xbt_error_t +gras_trp_sg_setup(gras_trp_plugin_t *plug) { + + gras_trp_sg_plug_data_t *data=xbt_new(gras_trp_sg_plug_data_t,1); + + plug->data = data; + + plug->socket_client = gras_trp_sg_socket_client; + plug->socket_server = gras_trp_sg_socket_server; + plug->socket_close = gras_trp_sg_socket_close; -gras_error_t -gras_trp_sg_init(gras_trp_plugin_t **dst) { + plug->chunk_send = gras_trp_sg_chunk_send; + plug->chunk_recv = gras_trp_sg_chunk_recv; - gras_trp_sg_specific_t *specific = malloc(sizeof(gras_trp_sg_specific_t)); - if (!specific) - RAISE_MALLOC; + plug->flush = NULL; /* nothing cached */ return no_error; } -void -gras_trp_sg_exit(gras_trp_plugin_t *plugin) { - gras_trp_sg_specific_t *specific = (gras_trp_sg_specific_t*)plugin->specific; - free(specific); -} +xbt_error_t gras_trp_sg_socket_client(gras_trp_plugin_t *self, + /* OUT */ gras_socket_t sock){ -gras_error_t gras_trp_sg_socket_client(const char *host, - unsigned short port, - int raw, - /* OUT */ gras_socket_t **dst){ - RAISE_UNIMPLEMENTED; -} + xbt_error_t errcode; -gras_error_t gras_trp_sg_socket_server(unsigned short port, - int raw, - /* OUT */ gras_socket_t **dst){ - RAISE_UNIMPLEMENTED; -} + m_host_t peer; + gras_hostdata_t *hd; + gras_trp_sg_sock_data_t *data; + gras_sg_portrec_t pr; + + /* make sure this socket will reach someone */ + if (!(peer=MSG_get_host_by_name(sock->peer_name))) { + fprintf(stderr,"GRAS: can't connect to %s: no such host.\n",sock->peer_name); + return mismatch_error; + } + if (!(hd=(gras_hostdata_t *)MSG_host_get_data(peer))) { + RAISE1(mismatch_error, + "can't connect to %s: no process on this host", + sock->peer_name); + } + errcode = find_port(hd,sock->peer_port,&pr); + if (errcode != no_error && errcode != mismatch_error) + return errcode; + + if (errcode == mismatch_error) { + RAISE2(mismatch_error, + "can't connect to %s:%d, no process listen on this port", + sock->peer_name,sock->peer_port); + } + + if (pr.meas && !sock->meas) { + RAISE2(mismatch_error, + "can't connect to %s:%d in regular mode, the process listen " + "in meas mode on this port",sock->peer_name,sock->peer_port); + } + if (!pr.meas && sock->meas) { + RAISE2(mismatch_error, + "can't connect to %s:%d in meas mode, the process listen " + "in regular mode on this port",sock->peer_name,sock->peer_port); + } + + /* create the socket */ + data = xbt_new(gras_trp_sg_sock_data_t,1); + data->from_PID = MSG_process_self_PID(); + data->to_PID = hd->proc[ pr.tochan ]; + data->to_host = peer; + data->to_chan = pr.tochan; + + sock->data = data; + sock->incoming = 1; + + DEBUG6("%s (PID %d) connects in %s mode to %s:%d (to_PID=%d)", + MSG_process_get_name(MSG_process_self()), MSG_process_self_PID(), + sock->meas?"meas":"regular", + sock->peer_name,sock->peer_port,data->to_PID); -void gras_trp_sg_socket_close(gras_socket_t **sd){ - ERROR1("%s not implemented",__FUNCTION__); - abort(); + return no_error; } -gras_error_t gras_trp_sg_select(double timeOut, - gras_socket_t **sd){ - RAISE_UNIMPLEMENTED; +xbt_error_t gras_trp_sg_socket_server(gras_trp_plugin_t *self, + gras_socket_t sock){ + + xbt_error_t errcode; + + gras_hostdata_t *hd=(gras_hostdata_t *)MSG_host_get_data(MSG_host_self()); + gras_trp_procdata_t pd=(gras_trp_procdata_t)gras_libdata_get("gras_trp"); + gras_sg_portrec_t pr; + gras_trp_sg_sock_data_t *data; + + const char *host=MSG_host_get_name(MSG_host_self()); + + xbt_assert0(hd,"Please run gras_process_init on each process"); + + sock->accepting = 0; /* no such nuisance in SG */ + + errcode = find_port(hd,sock->port,&pr); + switch (errcode) { + case no_error: /* Port already used... */ + RAISE2(mismatch_error, + "can't listen on address %s:%d: port already in use\n.", + host,sock->port); + break; + + case mismatch_error: /* Port not used so far. Do it */ + pr.tochan = sock->meas ? pd->measChan : pd->chan; + pr.port = sock->port; + pr.meas = sock->meas; + xbt_dynar_push(hd->ports,&pr); + break; + + default: + return errcode; + } + + /* Create the socket */ + data = xbt_new(gras_trp_sg_sock_data_t,1); + data->from_PID = -1; + data->to_PID = MSG_process_self_PID(); + data->to_host = MSG_host_self(); + data->to_chan = pd->chan; + + sock->data = data; + + VERB6("'%s' (%d) ears on %s:%d%s (%p)", + MSG_process_get_name(MSG_process_self()), MSG_process_self_PID(), + host,sock->port,sock->meas? " (mode meas)":"",sock); + + return no_error; } + +void gras_trp_sg_socket_close(gras_socket_t sock){ + gras_hostdata_t *hd=(gras_hostdata_t *)MSG_host_get_data(MSG_host_self()); + int cpt; -gras_error_t gras_trp_sg_bloc_send(gras_socket_t *sd, - void *data, - size_t size, - double timeOut){ - RAISE_UNIMPLEMENTED; + gras_sg_portrec_t pr; + + XBT_IN1(" (sock=%p)",sock); + + if (!sock) return; + xbt_assert0(hd,"Please run gras_process_init on each process"); + + if (sock->data) + free(sock->data); + + if (sock->incoming && sock->port >= 0) { + /* server mode socket. Unregister it from 'OS' tables */ + xbt_dynar_foreach(hd->ports, cpt, pr) { + DEBUG2("Check pr %d of %lu", cpt, xbt_dynar_length(hd->ports)); + if (pr.port == sock->port) { + xbt_dynar_cursor_rm(hd->ports, &cpt); + XBT_OUT; + return; + } + } + WARN2("socket_close called on the unknown incoming socket %p (port=%d)", + sock,sock->port); + } + XBT_OUT; } -gras_error_t gras_trp_sg_bloc_recv(gras_socket_t *sd, - void *data, - size_t size, - double timeOut){ - RAISE_UNIMPLEMENTED; +typedef struct { + int size; + void *data; +} sg_task_data_t; + +xbt_error_t gras_trp_sg_chunk_send(gras_socket_t sock, + const char *data, + unsigned long int size) { + m_task_t task=NULL; + static unsigned int count=0; + char name[256]; + gras_trp_sg_sock_data_t *sock_data = (gras_trp_sg_sock_data_t *)sock->data; + sg_task_data_t *task_data; + + sprintf(name,"Chunk[%d]",count++); + + task_data=xbt_new(sg_task_data_t,1); + task_data->data=(void*)xbt_malloc(size); + task_data->size = size; + memcpy(task_data->data,data,size); + + task=MSG_task_create(name,0,((double)size)/(1024.0*1024.0),task_data); + + DEBUG5("send chunk %s from %s to %s:%d (size=%ld)", + name, MSG_host_get_name(MSG_host_self()), + MSG_host_get_name(sock_data->to_host), sock_data->to_chan,size); + if (MSG_task_put(task, sock_data->to_host,sock_data->to_chan) != MSG_OK) { + RAISE0(system_error,"Problem during the MSG_task_put"); + } + + return no_error; } -gras_error_t gras_trp_sg_flush(gras_socket_t *sd){ - RAISE_UNIMPLEMENTED; +xbt_error_t gras_trp_sg_chunk_recv(gras_socket_t sock, + char *data, + unsigned long int size){ + gras_trp_procdata_t pd=(gras_trp_procdata_t)gras_libdata_get("gras_trp"); + + m_task_t task=NULL; + sg_task_data_t *task_data; + gras_trp_sg_sock_data_t *sock_data = sock->data; + + XBT_IN; + DEBUG4("recv chunk on %s -> %s:%d (size=%ld)", + MSG_host_get_name(sock_data->to_host), + MSG_host_get_name(MSG_host_self()), sock_data->to_chan, size); + if (MSG_task_get(&task, (sock->meas ? pd->measChan : pd->chan)) != MSG_OK) + RAISE0(unknown_error,"Error in MSG_task_get()"); + DEBUG1("Got chuck %s",MSG_task_get_name(task)); + + task_data = MSG_task_get_data(task); + if (size != -1) { + if (task_data->size != size) + RAISE5(mismatch_error, + "Got %d bytes when %ld where expected (in %s->%s:%d)", + task_data->size, size, + MSG_host_get_name(sock_data->to_host), + MSG_host_get_name(MSG_host_self()), sock_data->to_chan); + memcpy(data,task_data->data,size); + } else { + /* damn, the size is embeeded at the begining of the chunk */ + int netsize; + + memcpy((char*)&netsize,task_data->data,4); + DEBUG1("netsize embeeded = %d",netsize); + + memcpy(data,task_data->data,netsize+4); + } + free(task_data->data); + free(task_data); + + if (MSG_task_destroy(task) != MSG_OK) + RAISE0(unknown_error,"Error in MSG_task_destroy()"); + + XBT_OUT; + return no_error; } +#if 0 +/* Data exchange over measurement sockets */ +xbt_error_t gras_socket_meas_exchange(gras_socket_t peer, + int sender, + unsigned int timeout, + unsigned long int expSize, + unsigned long int msgSize) { + unsigned int bytesTotal; + static unsigned int count=0; + m_task_t task=NULL; + char name[256]; + gras_trp_sg_sock_data_t *sock_data = (gras_trp_sg_sock_data_t *)peer->data; + + gras_trp_procdata_t pd=(gras_trp_procdata_t)gras_libdata_get("gras_trp"); + double startTime; + + startTime=gras_os_time(); /* used only in sender mode */ + + for(bytesTotal = 0; bytesTotal < expSize; bytesTotal += msgSize) { + + if (sender) { + + sprintf(name,"meas data[%d]",count++); + + task=MSG_task_create(name,0,((double)msgSize)/(1024.0*1024.0),NULL); + + DEBUG5("%f:%s: gras_socket_meas_send(%f %s -> %s) BEGIN", + gras_os_time(), MSG_process_get_name(MSG_process_self()), + ((double)msgSize)/(1024.0*1024.0), + MSG_host_get_name( MSG_host_self()), peer->peer_name); + + if (MSG_task_put(task, sock_data->to_host,sock_data->to_chan) != MSG_OK) + RAISE0(system_error,"Problem during the MSG_task_put()"); + + DEBUG5("%f:%s: gras_socket_meas_send(%f %s -> %s) END", + gras_os_time(), MSG_process_get_name(MSG_process_self()), + ((double)msgSize)/(1024.0*1024.0), + MSG_host_get_name( MSG_host_self()), peer->peer_name); + + } else { /* we are receiver, simulate a select */ + + task=NULL; + DEBUG2("%f:%s: gras_socket_meas_recv() BEGIN\n", + gras_os_time(), MSG_process_get_name(MSG_process_self())); + do { + if (MSG_task_Iprobe((m_channel_t) pd->measChan)) { + if (MSG_task_get(&task, (m_channel_t) pd->measChan) != MSG_OK) { + fprintf(stderr,"GRAS: Error in MSG_task_get()\n"); + return unknown_error; + } + + if (MSG_task_destroy(task) != MSG_OK) { + fprintf(stderr,"GRAS: Error in MSG_task_destroy()\n"); + return unknown_error; + } + + DEBUG2("%f:%s: gras_socket_meas_recv() END\n", + gras_os_time(), MSG_process_get_name(MSG_process_self())); + break; + } else { + MSG_process_sleep(0.0001); + } + + } while (gras_os_time() - startTime < timeout); + + if (gras_os_time() - startTime > timeout) + return timeout_error; + } /* receiver part */ + } /* foreach msg */ + + return no_error; +} +#endif