X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6511b78ff810ead55a110d42b01a08255a55b56d..655afa10c8acf337cde1196c8a9505d2f91b3702:/src/gras/Transport/transport_plugin_sg.c diff --git a/src/gras/Transport/transport_plugin_sg.c b/src/gras/Transport/transport_plugin_sg.c index 822812e177..f83b704373 100644 --- a/src/gras/Transport/transport_plugin_sg.c +++ b/src/gras/Transport/transport_plugin_sg.c @@ -1,119 +1,381 @@ -/* $Id$ */ - /* file trp (transport) - send/receive a bunch of bytes in SG realm */ /* Note that this is only used to debug other parts of GRAS since message */ /* 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, 2005, 2006, 2007, 2009, 2010. The SimGrid Team. + * 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 "xbt/ex.h" -GRAS_LOG_EXTERNAL_CATEGORY(transport); -GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(trp_sg,transport); +#include "simix/simix.h" +#include "gras/Msg/msg_private.h" +#include "gras/Transport/transport_private.h" +#include "gras/Virtu/virtu_sg.h" +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_trp_sg, gras_trp, + "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); + +/* retrieve the port record associated to a numerical port on an host */ +static gras_sg_portrec_t find_port(gras_hostdata_t * hd, int port); + +void gras_trp_sg_socket_client(gras_trp_plugin_t self, + const char*host, + int port, + /* OUT */ gras_socket_t sock); +void gras_trp_sg_socket_server(gras_trp_plugin_t self, + int port, + /* OUT */ gras_socket_t sock); +void gras_trp_sg_socket_close(gras_socket_t sd); + +void gras_trp_sg_chunk_send_raw(gras_socket_t sd, + const char *data, unsigned long int size); +void gras_trp_sg_chunk_send(gras_socket_t sd, + const char *data, + unsigned long int size, int stable_ignored); + +int 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 gras_sg_portrec_t find_port(gras_hostdata_t * hd, int port) +{ + unsigned int cpt; + gras_sg_portrec_t pr; -gras_error_t -gras_trp_sg_init(gras_trp_plugin_t **dst) { - - gras_trp_sg_specific_t *specific = malloc(sizeof(gras_trp_sg_specific_t)); - if (!specific) - RAISE_MALLOC; + xbt_assert0(hd, "Please run gras_process_init on each process"); - return no_error; + xbt_dynar_foreach(hd->ports, cpt, pr) { + if (pr->port == port) + return pr; + } + return NULL; } -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); +/*** + *** Info about who's speaking + ***/ +static int gras_trp_sg_my_port(gras_socket_t s) { + gras_trp_sg_sock_data_t sockdata = s->data; + if (sockdata->rdv_client == NULL) /* Master socket, I'm server */ + return sockdata->server_port; + else + return sockdata->client_port; } - -gras_error_t gras_trp_sg_socket_client(const char *host, - unsigned short port, - int raw, - /* OUT */ gras_socket_t **dst){ - RAISE_UNIMPLEMENTED; +static int gras_trp_sg_peer_port(gras_socket_t s) { + gras_trp_sg_sock_data_t sockdata = s->data; + if (sockdata->server == SIMIX_process_self()) + return sockdata->client_port; + else + return sockdata->server_port; +} +static const char* gras_trp_sg_peer_name(gras_socket_t s) { + gras_trp_sg_sock_data_t sockdata = s->data; + if (sockdata->server == SIMIX_process_self()) + return SIMIX_host_get_name(SIMIX_process_get_host(sockdata->client)); + else + return SIMIX_host_get_name(SIMIX_process_get_host(sockdata->server)); } +static const char* gras_trp_sg_peer_proc(gras_socket_t s) { + THROW_UNIMPLEMENTED; +} +static void gras_trp_sg_peer_proc_set(gras_socket_t s,char *name) { + THROW_UNIMPLEMENTED; +} + +void gras_trp_sg_setup(gras_trp_plugin_t plug) +{ + + plug->my_port = gras_trp_sg_my_port; + plug->peer_port = gras_trp_sg_peer_port; + plug->peer_name = gras_trp_sg_peer_name; + plug->peer_proc = gras_trp_sg_peer_proc; + plug->peer_proc_set = gras_trp_sg_peer_proc_set; -gras_error_t gras_trp_sg_socket_server(unsigned short port, - int raw, - /* OUT */ gras_socket_t **dst){ - RAISE_UNIMPLEMENTED; + 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; + + plug->raw_send = gras_trp_sg_chunk_send_raw; + plug->send = gras_trp_sg_chunk_send; + plug->raw_recv = plug->recv = gras_trp_sg_chunk_recv; + + plug->flush = NULL; /* nothing cached */ } -void gras_trp_sg_socket_close(gras_socket_t **sd){ - ERROR1("%s not implemented",__FUNCTION__); - abort(); +void gras_trp_sg_socket_client(gras_trp_plugin_t self, + const char*host, + int port, + /* OUT */ gras_socket_t sock) +{ + + smx_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 = SIMIX_host_get_by_name(host))) + THROW1(mismatch_error, 0, + "Can't connect to %s: no such host.\n", host); + + if (!(hd = (gras_hostdata_t *) SIMIX_host_get_data(peer))) + THROW1(mismatch_error, 0, + "can't connect to %s: no process on this host", + host); + + pr = find_port(hd, port); + + if (pr == NULL) { + THROW2(mismatch_error, 0, + "can't connect to %s:%d, no process listen on this port", + host, port); + } + + /* Ensure that the listener is expecting the kind of stuff we want to send */ + if (pr->meas && !sock->meas) { + THROW2(mismatch_error, 0, + "can't connect to %s:%d in regular mode, the process listen " + "in measurement mode on this port", host, + port); + } + if (!pr->meas && sock->meas) { + THROW2(mismatch_error, 0, + "can't connect to %s:%d in measurement mode, the process listen " + "in regular mode on this port", host, + port); + } + + /* create simulation data of the socket */ + data = xbt_new(s_gras_trp_sg_sock_data_t, 1); + data->client = SIMIX_process_self(); + data->server = pr->server; + data->server_port = port; + data->client_port = gras_os_myport(); + + /* initialize synchronization stuff on the socket */ + data->rdv_server = pr->rdv; + data->rdv_client = SIMIX_rdv_create(NULL); + data->comm_recv = SIMIX_network_irecv(data->rdv_client, NULL, 0); + + /* connect that simulation data to the socket */ + sock->data = data; + sock->incoming = 1; + + DEBUG8("%s (PID %d) connects in %s mode to %s:%d (rdv_ser:%p, rdv_cli:%p, comm:%p)", + SIMIX_process_get_name(SIMIX_process_self()), gras_os_getpid(), + sock->meas ? "meas" : "regular", host, port, + data->rdv_server,data->rdv_client,data->comm_recv); } -gras_error_t gras_trp_sg_select(double timeOut, - gras_socket_t **sd){ - RAISE_UNIMPLEMENTED; +void gras_trp_sg_socket_server(gras_trp_plugin_t self, int port, gras_socket_t sock) +{ + + gras_hostdata_t *hd = + (gras_hostdata_t *) SIMIX_host_get_data(SIMIX_host_self()); + gras_sg_portrec_t pr; + gras_trp_sg_sock_data_t data; + + xbt_assert0(hd, "Please run gras_process_init on each process"); + + sock->accepting = 1; + + /* Check whether a server is already listening on that port or not */ + pr = find_port(hd, port); + + if (pr) + THROW2(mismatch_error, 0, + "can't listen on address %s:%d: port already in use.", + SIMIX_host_get_name(SIMIX_host_self()), port); + + /* This port is free, let's take it */ + pr = xbt_new(s_gras_sg_portrec_t, 1); + pr->port = port; + pr->meas = sock->meas; + pr->server = SIMIX_process_self(); + pr->rdv = SIMIX_rdv_create(NULL); + xbt_dynar_push(hd->ports, &pr); + + /* Create the socket */ + data = xbt_new(s_gras_trp_sg_sock_data_t, 1); + data->server = SIMIX_process_self(); + data->server_port = port; + data->client = NULL; + data->rdv_server = pr->rdv; + data->rdv_client = NULL; + data->comm_recv = SIMIX_network_irecv(pr->rdv, NULL, 0); + + sock->data = data; + + VERB10 + ("'%s' (%d) ears on %s:%d%s (%p; data:%p); Here rdv: %p; Remote rdv: %p; Comm %p", + SIMIX_process_get_name(SIMIX_process_self()), gras_os_getpid(), + SIMIX_host_get_name(SIMIX_host_self()), port, + sock->meas ? " (mode meas)" : "", sock, data, + (data->server == + SIMIX_process_self())? data->rdv_server : data->rdv_client, + (data->server == + SIMIX_process_self())? data->rdv_client : data->rdv_server, + data->comm_recv); + } - -gras_error_t gras_trp_sg_bloc_send(gras_socket_t *sd, - void *data, - size_t size, - double timeOut){ - RAISE_UNIMPLEMENTED; + +void gras_trp_sg_socket_close(gras_socket_t sock) +{ + gras_hostdata_t *hd = + (gras_hostdata_t *) SIMIX_host_get_data(SIMIX_host_self()); + unsigned int cpt; + gras_sg_portrec_t pr; + + XBT_IN1(" (sock=%p)", sock); + + if (!sock) + return; + + xbt_assert0(hd, "Please run gras_process_init on each process"); + + gras_trp_sg_sock_data_t sockdata = sock->data; + + if (sock->incoming && !sock->outgoing && sockdata->server_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 == sockdata->server_port) { + xbt_dynar_cursor_rm(hd->ports, &cpt); + XBT_OUT; + return; + } + } + WARN2 + ("socket_close called on the unknown incoming socket %p (port=%d)", + sock, sockdata->server_port); + } + if (sock->data) { + /* FIXME: kill the rdv point if receiver side */ + free(sock->data); + } + 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; + +void gras_trp_sg_chunk_send(gras_socket_t sock, + const char *data, + unsigned long int size, int stable_ignored) +{ + gras_trp_sg_chunk_send_raw(sock, data, size); } -gras_error_t gras_trp_sg_flush(gras_socket_t *sd){ - RAISE_UNIMPLEMENTED; +void gras_trp_sg_chunk_send_raw(gras_socket_t sock, + const char *data, unsigned long int size) +{ +#ifdef KILLME + char name[256]; + static unsigned int count = 0; + + smx_action_t act; /* simix action */ + gras_trp_procdata_t trp_remote_proc; + gras_msg_procdata_t msg_remote_proc; + gras_msg_t msg; /* message to send */ + + //gras_trp_sg_sock_data_t sock_data = (gras_trp_sg_sock_data_t) sock->data; + xbt_assert0(sock->meas, + "SG chunk exchange shouldn't be used on non-measurement sockets"); + + + /* creates simix action and waits its ends, waits in the sender host + condition */ + /* + if (XBT_LOG_ISENABLED(gras_trp_sg, xbt_log_priority_debug)) { + smx_process_t remote_dude = + (sock_data->server == + SIMIX_process_self())? (sock_data->client) : (sock_data->server); + smx_host_t remote_host = SIMIX_process_get_host(remote_dude); + } + */ + //SIMIX_network_send(sock_data->rdv,size,1,-1,NULL,0,NULL,NULL); +#endif + THROW_UNIMPLEMENTED; } +int gras_trp_sg_chunk_recv(gras_socket_t sock, + char *data, unsigned long int size) +{ + //gras_trp_sg_sock_data_t *sock_data = + // (gras_trp_sg_sock_data_t *) sock->data; + + //SIMIX_network_recv(sock_data->rdv,-1,NULL,0,NULL); + THROW_UNIMPLEMENTED; +#ifdef KILLME + gras_trp_sg_sock_data_t *remote_sock_data; + gras_socket_t remote_socket = NULL; + gras_msg_t msg_got; + gras_msg_procdata_t msg_procdata = + (gras_msg_procdata_t) gras_libdata_by_name("gras_msg"); + gras_trp_procdata_t trp_proc = + (gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id); + + xbt_assert0(sock->meas, + "SG chunk exchange shouldn't be used on non-measurement sockets"); + xbt_queue_shift_timed(trp_proc->meas_selectable_sockets, + &remote_socket, 60); + + if (remote_socket == NULL) { + THROW0(timeout_error, 0, "Timeout"); + } + + remote_sock_data = (gras_trp_sg_sock_data_t *) remote_socket->data; + msg_got = xbt_fifo_shift(msg_procdata->msg_to_receive_queue_meas); + + sock_data = (gras_trp_sg_sock_data_t *) sock->data; + + /* ok, I'm here, you can continue the communication */ + SIMIX_cond_signal(remote_sock_data->cond); + + SIMIX_mutex_lock(remote_sock_data->mutex); + /* wait for communication end */ + SIMIX_cond_wait(remote_sock_data->cond, remote_sock_data->mutex); + + if (msg_got->payl_size != size) + THROW5(mismatch_error, 0, + "Got %d bytes when %ld where expected (in %s->%s:%d)", + msg_got->payl_size, size, + SIMIX_host_get_name(sock_data->to_host), + SIMIX_host_get_name(SIMIX_host_self()), sock->peer_port); + + if (data) + memcpy(data, msg_got->payl, size); + + if (msg_got->payl) + xbt_free(msg_got->payl); + + xbt_free(msg_got); + SIMIX_mutex_unlock(remote_sock_data->mutex); +#endif + return 0; +}