* under the terms of the license (GNU LGPL) which comes with this package. */
#include "gras/Msg/msg_private.h"
+#include "gras/Transport/transport_private.h"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_msg_read,gras_msg,"Message reader thread");
#include "xbt/ex.h"
typedef struct s_gras_msg_listener_ {
xbt_queue_t incomming_messages;
+ gras_socket_t wakeup_sock_listener_side;
+ gras_socket_t wakeup_sock_master_side;
xbt_thread_t listener;
} s_gras_msg_listener_t;
static void listener_function(void *p) {
gras_msg_listener_t me = (gras_msg_listener_t)p;
s_gras_msg_t msg;
- xbt_ex_t e;
- int found =0;
+ gras_msgtype_t msg_wakeup_listener_t = gras_msgtype_by_name("_wakeup_listener");
DEBUG0("I'm the listener");
while (1) {
- TRY {
- DEBUG0("Select for .5 sec");
- msg.expe = gras_trp_select(0.5);
- found =1;
- DEBUG0("Select returned something");
- }
- CATCH(e) {
- xbt_ex_free(e);
- }
- if (found) {
- gras_msg_recv(msg.expe, &msg);
- xbt_queue_push(me->incomming_messages, &msg);
- found =0;
+ DEBUG0("Selecting");
+ msg.expe = gras_trp_select(-1);
+ DEBUG0("Select returned something");
+ gras_msg_recv(msg.expe, &msg);
+ if (msg.type!=msg_wakeup_listener_t)
+ xbt_queue_push(me->incomming_messages, &msg);
+ else {
+ DEBUG0("Asked to get awake");
}
}
}
gras_msg_listener_t
gras_msg_listener_launch(xbt_queue_t msg_exchange){
gras_msg_listener_t arg = xbt_new0(s_gras_msg_listener_t,1);
+ int my_port;
DEBUG0("Launch listener");
arg->incomming_messages = msg_exchange;
+ /* get a free socket for the receiving part of the listener, taking care that it does not get saved as "myport" number */
+ my_port = ((gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id))->myport;
+ arg->wakeup_sock_listener_side=gras_socket_server_range(5000,6000,-1,0);
+ ((gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id))->myport = my_port;
+ /* Connect the other part of the socket */
+ arg->wakeup_sock_master_side=gras_socket_client(gras_os_myname(),gras_socket_my_port(arg->wakeup_sock_listener_side));
+
+ /* declare the message used to awake the listener from the master */
+ gras_msgtype_declare("_wakeup_listener",gras_datadesc_by_name("char"));
+
+ /* actually start the thread */
arg->listener = xbt_thread_create("listener",listener_function,arg);
- gras_os_sleep(0); /* give the listener a chance to initialize even if the main is empty and we cancel it right afterward */
+ gras_os_sleep(0); /* TODO: useless? give the listener a chance to initialize even if the main is empty and we cancel it right afterward */
return arg;
}
xbt_queue_free(&l->incomming_messages);
xbt_free(l);
}
+
+#include "gras/Virtu/virtu_private.h" /* procdata_t content */
+void gras_msg_listener_awake(){
+ gras_procdata_t *pd;
+ char c = '1';
+
+ DEBUG0("Awaking the listener");
+ pd = gras_procdata_get();
+ if (pd->listener) {
+ gras_msg_send(pd->listener->wakeup_sock_master_side,"_wakeup_listener",&c);
+ }
+}
#include "xbt/peer.h"
#include "portable.h"
#include "gras/Transport/transport_private.h"
+#include "gras/Msg/msg_interface.h"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_trp,gras,"Conveying bytes over the network");
XBT_LOG_NEW_SUBCATEGORY(gras_trp_meas,gras_trp,"Conveying bytes over the network without formating for perf measurements");
xbt_ex_t e;
gras_trp_plugin_t plug = xbt_new0(s_gras_trp_plugin_t, 1);
-
+
DEBUG1("Create plugin %s",name);
plug->name=xbt_strdup(name);
#ifdef HAVE_WINSOCK2_H
/* initialize the windows mechanism */
- {
+ {
WORD wVersionRequested;
WSADATA wsaData;
-
+
wVersionRequested = MAKEWORD( 2, 0 );
xbt_assert0(WSAStartup( wVersionRequested, &wsaData ) == 0,
"Cannot find a usable WinSock DLL");
-
+
/* Confirm that the WinSock DLL supports 2.0.*/
/* Note that if the DLL supports versions greater */
/* than 2.0 in addition to 2.0, it will still return */
/* 2.0 in wVersion since that is the version we */
/* requested. */
-
+
xbt_assert0(LOBYTE( wsaData.wVersion ) == 2 &&
HIBYTE( wsaData.wVersion ) == 0,
"Cannot find a usable WinSock DLL");
INFO0("Found and initialized winsock");
}
#endif
-
+
/* Add plugins */
gras_trp_plugin_new("file",gras_trp_file_setup);
gras_trp_plugin_new("sg",gras_trp_sg_setup);
gras_trp_plugin_new("tcp", gras_trp_tcp_setup);
}
-
+
_gras_trp_started++;
}
if (_gras_trp_started == 0) {
return;
}
-
+
if ( --_gras_trp_started == 0 ) {
#ifdef HAVE_WINSOCK_H
if ( WSACleanup() == SOCKET_ERROR ) {
sock->data = NULL;
sock->bufdata = NULL;
-
+
*dst = sock;
XBT_OUT;
}
-
+
/**
* @brief Opens a server socket and makes it ready to be listened to.
* @param port: port on which you want to listen
* @param buf_size: size of the buffer (in byte) on the socket (for TCP sockets only). If 0, a sain default is used (32k, but may change)
* @param measurement: whether this socket is meant to convey measurement (if you don't know, use 0 to exchange regular messages)
- *
- * In real life, you'll get a TCP socket.
+ *
+ * In real life, you'll get a TCP socket.
*/
gras_socket_t
gras_socket_server_ext(unsigned short port,
-
+
unsigned long int buf_size,
int measurement) {
-
+
xbt_ex_t e;
gras_trp_plugin_t trp;
gras_socket_t sock;
TRY {
trp->socket_server(trp, sock);
DEBUG3("in=%c out=%c accept=%c",
- sock->incoming?'y':'n',
+ sock->incoming?'y':'n',
sock->outgoing?'y':'n',
sock->accepting?'y':'n');
} CATCH(e) {
if (!measurement)
((gras_trp_procdata_t) gras_libdata_by_id(gras_trp_libdata_id))->myport = port;
- xbt_dynar_push(((gras_trp_procdata_t)
+ xbt_dynar_push(((gras_trp_procdata_t)
gras_libdata_by_id(gras_trp_libdata_id))->sockets,&sock);
+
+ gras_msg_listener_awake();
return sock;
}
/**
* @brief Opens a server socket on any port in the given range
- *
+ *
* @param minport: first port we will try
* @param maxport: last port we will try
* @param buf_size: size of the buffer (in byte) on the socket (for TCP sockets only). If 0, a sain default is used (32k, but may change)
* @param measurement: whether this socket is meant to convey measurement (if you don't know, use 0 to exchange regular messages)
- *
+ *
* If none of the provided ports works, raises the exception got when trying the last possibility
- */
+ */
gras_socket_t
gras_socket_server_range(unsigned short minport, unsigned short maxport,
unsigned long int buf_size, int measurement) {
-
+
int port;
gras_socket_t res=NULL;
xbt_ex_t e;
-
+
for (port=minport; port<maxport;port ++) {
TRY {
res=gras_socket_server_ext(port,buf_size,measurement);
}
THROW_IMPOSSIBLE;
}
-
+
/**
* @brief Opens a client socket to a remote host.
* @param host: who you want to connect to
* @param port: where you want to connect to on this host
* @param buf_size: size of the buffer (in bytes) on the socket (for TCP sockets only). If 0, a sain default is used (32k, but may change)
* @param measurement: whether this socket is meant to convey measurement (if you don't know, use 0 to exchange regular messages)
- *
- * In real life, you'll get a TCP socket.
+ *
+ * In real life, you'll get a TCP socket.
*/
gras_socket_t
gras_socket_client_ext(const char *host,
unsigned short port,
-
+
unsigned long int buf_size,
int measurement) {
-
+
xbt_ex_t e;
gras_trp_plugin_t trp;
gras_socket_t sock;
TRY {
(*trp->socket_client)(trp, sock);
DEBUG3("in=%c out=%c accept=%c",
- sock->incoming?'y':'n',
+ sock->incoming?'y':'n',
sock->outgoing?'y':'n',
sock->accepting?'y':'n');
} CATCH(e) {
free(sock);
RETHROW;
}
- xbt_dynar_push(((gras_trp_procdata_t)
+ xbt_dynar_push(((gras_trp_procdata_t)
gras_libdata_by_id(gras_trp_libdata_id))->sockets,&sock);
+ gras_msg_listener_awake();
return sock;
}
/**
* @brief Opens a server socket and make it ready to be listened to.
- *
+ *
* In real life, you'll get a TCP socket.
*/
gras_socket_t
if (sock == _gras_lastly_selected_socket) {
xbt_assert0(!gras_opt_trp_nomoredata_on_close || !sock->moredata,
"Closing a socket having more data in buffer while the nomoredata_on_close option is activated");
-
- if (sock->moredata)
+
+ if (sock->moredata)
CRITICAL0("Closing a socket having more data in buffer. Option nomoredata_on_close disabled, so continuing.");
_gras_lastly_selected_socket=NULL;
}
-
+
/* FIXME: Issue an event when the socket is closed */
DEBUG1("sockets pointer before %p",sockets);
if (sock) {
if (sock == sock_iter) {
DEBUG2("remove sock cursor %d dize %lu\n",cursor,xbt_dynar_length(sockets));
xbt_dynar_cursor_rm(sockets,&cursor);
- if (sock->plugin->socket_close)
+ if (sock->plugin->socket_close)
(* sock->plugin->socket_close)(sock);
/* free the memory */
return sock->meas;
}
-/** \brief Send a chunk of (random) data over a measurement socket
+/** \brief Send a chunk of (random) data over a measurement socket
*
* @param peer measurement socket to use for the experiment
* @param timeout timeout (in seconds)
* @param msg_size size of each chunk sent over the socket (in bytes).
- * @param msg_amount how many of these packets you want to send.
+ * @param msg_amount how many of these packets you want to send.
+ *
+ * Calls to gras_socket_meas_send() and gras_socket_meas_recv() on
+ * each side of the socket should be paired.
*
- * Calls to gras_socket_meas_send() and gras_socket_meas_recv() on
- * each side of the socket should be paired.
- *
* The exchanged data is zeroed to make sure it's initialized, but
- * there is no way to control what is sent (ie, you cannot use these
+ * there is no way to control what is sent (ie, you cannot use these
* functions to exchange data out of band).
- *
- * @warning: in SimGrid version 3.1 and previous, the numerical arguments
- * were the total amount of data to send and the msg_size. This
- * was changed for the fool wanting to send more than MAXINT
- * bytes in a fat pipe.
+ *
+ * @warning: in SimGrid version 3.1 and previous, the numerical arguments
+ * were the total amount of data to send and the msg_size. This
+ * was changed for the fool wanting to send more than MAXINT
+ * bytes in a fat pipe.
*/
-void gras_socket_meas_send(gras_socket_t peer,
+void gras_socket_meas_send(gras_socket_t peer,
unsigned int timeout,
- unsigned long int msg_size,
+ unsigned long int msg_size,
unsigned long int msg_amount) {
char *chunk=NULL;
unsigned long int sent_sofar;
-
+
XBT_IN;
- if (gras_if_RL())
+ if (gras_if_RL())
chunk=xbt_malloc0(msg_size);
xbt_assert0(peer->meas,"Asked to send measurement data on a regular socket");
CDEBUG5(gras_trp_meas,"Sent %lu msgs of %lu (size of each: %ld) to %s:%d",
sent_sofar,msg_amount,msg_size,
gras_socket_peer_name(peer), gras_socket_peer_port(peer));
-
- if (gras_if_RL())
+
+ if (gras_if_RL())
free(chunk);
XBT_OUT;
}
-/** \brief Receive a chunk of data over a measurement socket
+/** \brief Receive a chunk of data over a measurement socket
*
- * Calls to gras_socket_meas_send() and gras_socket_meas_recv() on
- * each side of the socket should be paired.
+ * Calls to gras_socket_meas_send() and gras_socket_meas_recv() on
+ * each side of the socket should be paired.
*
- * @warning: in SimGrid version 3.1 and previous, the numerical arguments
- * were the total amount of data to send and the msg_size. This
- * was changed for the fool wanting to send more than MAXINT
- * bytes in a fat pipe.
+ * @warning: in SimGrid version 3.1 and previous, the numerical arguments
+ * were the total amount of data to send and the msg_size. This
+ * was changed for the fool wanting to send more than MAXINT
+ * bytes in a fat pipe.
*/
-void gras_socket_meas_recv(gras_socket_t peer,
+void gras_socket_meas_recv(gras_socket_t peer,
unsigned int timeout,
- unsigned long int msg_size,
+ unsigned long int msg_size,
unsigned long int msg_amount){
-
+
char *chunk=NULL;
unsigned long int got_sofar;
XBT_IN;
- if (gras_if_RL())
+ if (gras_if_RL())
chunk = xbt_malloc(msg_size);
xbt_assert0(peer->meas,
got_sofar,msg_amount,msg_size,
gras_socket_peer_name(peer), gras_socket_peer_port(peer));
- if (gras_if_RL())
+ if (gras_if_RL())
free(chunk);
XBT_OUT;
}
/**
- * \brief Something similar to the good old accept system call.
+ * \brief Something similar to the good old accept system call.
*
* Make sure that there is someone speaking to the provided server socket.
- * In RL, it does an accept(2) and return the result as last argument.
+ * In RL, it does an accept(2) and return the result as last argument.
* In SG, as accepts are useless, it returns the provided argument as result.
* You should thus test whether (peer != accepted) before closing both of them.
*
- * You should only call this on measurement sockets. It is automatically
- * done for regular sockets, but you usually want more control about
+ * You should only call this on measurement sockets. It is automatically
+ * done for regular sockets, but you usually want more control about
* what's going on with measurement sockets.
*/
gras_socket_t gras_socket_meas_accept(gras_socket_t peer){
CDEBUG1(gras_trp_meas,"meas_accepted onto %d",res->sd);
return res;
-}
+}
/*
*/
static void *gras_trp_procdata_new(void) {
gras_trp_procdata_t res = xbt_new(s_gras_trp_procdata_t,1);
-
+
res->name = xbt_strdup("gras_trp");
res->name_len = 0;
res->sockets = xbt_dynar_new_sync(sizeof(gras_socket_t*), NULL);
res->myport = 0;
-
+
return (void*)res;
}
*/
static void gras_trp_procdata_free(void *data) {
gras_trp_procdata_t res = (gras_trp_procdata_t)data;
-
+
xbt_dynar_free(&( res->sockets ));
free(res->name);
free(res);
}
void gras_trp_socketset_dump(const char *name) {
- gras_trp_procdata_t procdata =
+ gras_trp_procdata_t procdata =
(gras_trp_procdata_t)gras_libdata_by_id(gras_trp_libdata_id);
unsigned int it;