/* 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 <msg.h>
+
#include "gras_private.h"
#include "transport_private.h"
+#include "Virtu/virtu_sg.h"
GRAS_LOG_EXTERNAL_CATEGORY(transport);
GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(trp_sg,transport);
-
/***
*** Prototypes
***/
-void gras_trp_sg_exit(gras_trp_plugin_t *plugin);
-gras_error_t gras_trp_sg_socket_client(const char *host,
+/* retrieve the port record associated to a numerical port on an host */
+static gras_error_t find_port(gras_hostdata_t *hd, int port,
+ gras_sg_portrec_t *hpd);
+
+
+gras_error_t gras_trp_sg_socket_client(gras_trp_plugin_t *self,
+ const char *host,
+ unsigned short port,
+ /* OUT */ gras_socket_t *sock);
+gras_error_t gras_trp_sg_socket_server(gras_trp_plugin_t *self,
unsigned short port,
- int raw,
- unsigned int bufSize,
- /* OUT */ gras_socket_t **dst);
-gras_error_t gras_trp_sg_socket_server(unsigned short port,
- int raw,
- unsigned int bufSize,
- /* 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);
+ /* OUT */ gras_socket_t *sock);
+void gras_trp_sg_socket_close(gras_socket_t *sd);
+
+gras_error_t gras_trp_sg_chunk_send(gras_socket_t *sd,
+ char *data,
+ size_t size);
+
+gras_error_t gras_trp_sg_chunk_recv(gras_socket_t *sd,
+ char *data,
+ size_t size);
+
+/* FIXME
+ gras_error_t gras_trp_sg_flush(gras_socket_t *sd);
+*/
/***
*** 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_error_t find_port(gras_hostdata_t *hd, int port,
+ gras_sg_portrec_t *hpd) {
+ int cpt;
+ gras_sg_portrec_t pr;
+
+ gras_assert0(hd,"Please run gras_process_init on each process");
+
+ gras_dynar_foreach(hd->ports, cpt, pr) {
+ if (pr.port == port) {
+ memcpy(hpd,&pr,sizeof(gras_sg_portrec_t));
+ return no_error;
+ }
+ }
+ return mismatch_error;
+}
+
gras_error_t
-gras_trp_sg_init(gras_trp_plugin_t **dst) {
+gras_trp_sg_setup(gras_trp_plugin_t *plug) {
+
+ gras_trp_sg_plug_data_t *data=malloc(sizeof(gras_trp_sg_plug_data_t));
- gras_trp_sg_specific_t *specific = malloc(sizeof(gras_trp_sg_specific_t));
- if (!specific)
+ if (!data)
RAISE_MALLOC;
+ 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->chunk_send = gras_trp_sg_chunk_send;
+ plug->chunk_recv = gras_trp_sg_chunk_recv;
+
+
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);
+gras_error_t gras_trp_sg_socket_client(gras_trp_plugin_t *self,
+ const char *host,
+ unsigned short port,
+ /* OUT */ gras_socket_t *sock){
+
+ gras_error_t errcode;
+
+ 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(host))) {
+ fprintf(stderr,"GRAS: can't connect to %s: no such host.\n",host);
+ 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",
+ host);
+ }
+ errcode = find_port(hd,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",
+ host,port);
+ }
+
+ if (pr.raw && !sock->raw) {
+ RAISE2(mismatch_error,
+ "can't connect to %s:%d in regular mode, the process listen "
+ "in raw mode on this port",host,port);
+ }
+ if (!pr.raw && sock->raw) {
+ RAISE2(mismatch_error,
+ "can't connect to %s:%d in raw mode, the process listen "
+ "in regular mode on this port",host,port);
+ }
+
+ /* create the socket */
+ if (!(data = malloc(sizeof(gras_trp_sg_sock_data_t))))
+ RAISE_MALLOC;
+
+ 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->raw?"RAW":"regular",host,port,data->to_PID);
+
+ return no_error;
}
-gras_error_t gras_trp_sg_socket_client(const char *host,
+gras_error_t gras_trp_sg_socket_server(gras_trp_plugin_t *self,
unsigned short port,
- int raw,
- unsigned int bufSize,
- /* OUT */ gras_socket_t **dst){
- RAISE_UNIMPLEMENTED;
-}
+ gras_socket_t *sock){
-gras_error_t gras_trp_sg_socket_server(unsigned short port,
- int raw,
- unsigned int bufSize,
- /* OUT */ gras_socket_t **dst){
- RAISE_UNIMPLEMENTED;
-}
+ gras_error_t errcode;
+
+ gras_hostdata_t *hd=(gras_hostdata_t *)MSG_host_get_data(MSG_host_self());
+ gras_procdata_t *pd=gras_procdata_get();
+ gras_sg_portrec_t pr;
+ gras_trp_sg_sock_data_t *data;
+
+ const char *host=MSG_host_get_name(MSG_host_self());
+
+ gras_assert0(hd,"Please run gras_process_init on each process");
+
+ sock->accepting = 0; /* no such nuisance in SG */
+
+ errcode = find_port(hd,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,port);
+
+ case mismatch_error: /* Port not used so far. Do it */
+ pr.tochan = sock->raw ? pd->rawChan : pd->chan;
+ pr.port = port;
+ pr.raw = sock->raw;
+ TRY(gras_dynar_push(hd->ports,&pr));
+
+ default:
+ return errcode;
+ }
+
+ /* Create the socket */
+ if (!(data = malloc(sizeof(gras_trp_sg_sock_data_t))))
+ RAISE_MALLOC;
+
+ 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;
+
+ INFO6("'%s' (%d) ears on %s:%d%s (%p)",
+ MSG_process_get_name(MSG_process_self()), MSG_process_self_PID(),
+ host,port,sock->raw? " (mode RAW)":"",*sock);
-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;
+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_sg_portrec_t pr;
+
+ if (!sock) return;
+ gras_assert0(hd,"Please run gras_process_init on each process");
+
+ if (sock->data)
+ free(sock->data);
+
+ if (sock->incoming) {
+ /* server mode socket. Un register it from 'OS' tables */
+ gras_dynar_foreach(hd->ports, cpt, pr) {
+ DEBUG2("Check pr %d of %d", cpt, gras_dynar_length(hd->ports));
+ if (pr.port == sock->port) {
+ gras_dynar_cursor_rm(hd->ports, &cpt);
+ return;
+ }
+ }
+ WARN0("socket_close called on an unknown socket");
+ }
}
+
+typedef struct {
+ int size;
+ void *data;
+} sg_task_data_t;
+
+gras_error_t gras_trp_sg_chunk_send(gras_socket_t *sock,
+ char *data,
+ size_t size) {
+ m_task_t task=NULL;
+ static unsigned int count=0;
+ char name[256];
+ gras_trp_sg_sock_data_t *sock_data;
+ sg_task_data_t *task_data;
-gras_error_t gras_trp_sg_bloc_send(gras_socket_t *sd,
- void *data,
- size_t size,
- double timeOut){
- RAISE_UNIMPLEMENTED;
+ sock_data = (gras_trp_sg_sock_data_t *)sock->data;
+
+ sprintf(name,"Chunk[%d]",count++);
+
+ if (!(task_data=malloc(sizeof(sg_task_data_t))))
+ RAISE_MALLOC;
+ if (!(task_data->data=malloc(size)))
+ RAISE_MALLOC;
+ task_data->size = size;
+ memcpy(task_data->data,data,size);
+
+ task=MSG_task_create(name,0,((double)size)/(1024.0*1024.0),task_data);
+
+ DEBUG4("send chunk %s from %s to %s on channel %d",
+ name, MSG_host_get_name(MSG_host_self()),
+ MSG_host_get_name(sock_data->to_host), sock_data->to_chan);
+ 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_bloc_recv(gras_socket_t *sd,
- void *data,
- size_t size,
- double timeOut){
- RAISE_UNIMPLEMENTED;
+gras_error_t gras_trp_sg_chunk_recv(gras_socket_t *sock,
+ char *data,
+ size_t size){
+ gras_procdata_t *pd=gras_procdata_get();
+
+ m_task_t task=NULL;
+ sg_task_data_t *task_data;
+ gras_trp_sg_sock_data_t *sock_data = sock->data;
+
+ DEBUG3("recv chunk on %s from %s on channel %d",
+ MSG_host_get_name(MSG_host_self()),
+ MSG_host_get_name(sock_data->to_host), sock_data->to_chan);
+ if (MSG_task_get(&task, (sock->raw ? pd->rawChan : pd->chan)) != MSG_OK)
+ RAISE0(unknown_error,"Error in MSG_task_get()");
+
+ task_data = MSG_task_get_data(task);
+ gras_assert2(task_data->size == size,
+ "Got %d bytes when %d where expected",
+ task_data->size, size);
+ memcpy(data,task_data->data,size);
+ free(task_data->data);
+ free(task_data);
+
+ if (MSG_task_destroy(task) != MSG_OK)
+ RAISE0(unknown_error,"Error in MSG_task_destroy()");
+
+ return no_error;
}
+/*FIXME
+
gras_error_t gras_trp_sg_flush(gras_socket_t *sd){
RAISE_UNIMPLEMENTED;
}
-
+*/
