-/* $Id$ */
-
/* 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 (gras_socket_im_the_server(s))
+ return sockdata->server_port;
+ else
+ return sockdata->client_port;
+}
+static int gras_trp_sg_peer_port(gras_socket_t s) {
+ gras_trp_sg_sock_data_t sockdata = s->data;
+ if (gras_socket_im_the_server(s))
+ return sockdata->client_port;
+ else
+ return sockdata->server_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 const char* gras_trp_sg_peer_name(gras_socket_t s) {
+ gras_trp_sg_sock_data_t sockdata = s->data;
+ if (gras_socket_im_the_server(s))
+ return SIMIX_host_get_name(SIMIX_req_process_get_host(sockdata->client));
+ else {
+ return SIMIX_host_get_name(SIMIX_req_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_trp_sg_plug_data_t *data = xbt_new(gras_trp_sg_plug_data_t, 1);
-gras_error_t gras_trp_sg_socket_server(unsigned short port,
- int raw,
- /* OUT */ gras_socket_t **dst){
- RAISE_UNIMPLEMENTED;
+ 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_req_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_req_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_new0(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_req_rdv_create(NULL);
+ data->comm_recv = SIMIX_req_comm_irecv(data->rdv_client, &data->msg, NULL, NULL, NULL);
+
+ /* 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_req_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_self_get_data();
+ 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_self_get_name(), 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();
+ xbt_dynar_push(hd->ports, &pr);
+ pr->rdv = SIMIX_req_rdv_create(NULL);
+
+ /* Create the socket */
+ data = xbt_new0(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_req_comm_irecv(pr->rdv, &data->msg, NULL, NULL, NULL);
+
+ sock->data = data;
+
+ VERB10
+ ("'%s' (%d) ears on %s:%d%s (%p; data:%p); Here rdv: %p; Remote rdv: %p; Comm %p",
+ SIMIX_req_process_get_name(SIMIX_process_self()), gras_os_getpid(),
+ SIMIX_host_self_get_name(), 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_self_get_data();
+ 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_req_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_req_comm_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_req_cond_signal(remote_sock_data->cond);
+
+ SIMIX_req_mutex_lock(remote_sock_data->mutex);
+ /* wait for communication end */
+ SIMIX_req_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_req_host_get_name(sock_data->to_host),
+ SIMIX_host_self_get_name(), 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_req_mutex_unlock(remote_sock_data->mutex);
+#endif
+ return 0;
+}
