-/* $Id$ */
-
/* transport - low level communication (send/receive bunches of bytes) */
/* module's public interface exported within GRAS, but not to end user. */
-/* Copyright (c) 2004 Martin Quinson. All rights reserved. */
+/* 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. */
#include "simix/simix.h"
#include "xbt/queue.h"
-/***
- *** Options
- ***/
-extern int gras_opt_trp_nomoredata_on_close;
-
-/***
- *** Main user functions
- ***/
-/* stable if we know the storage will keep as is until the next trp_flush */
-XBT_PUBLIC(void) gras_trp_send(gras_socket_t sd, char *data, long int size,
- int stable);
-XBT_PUBLIC(void) gras_trp_recv(gras_socket_t sd, char *data, long int size);
-XBT_PUBLIC(void) gras_trp_flush(gras_socket_t sd);
-
-/* Find which socket needs to be read next */
-XBT_PUBLIC(gras_socket_t) gras_trp_select(double timeout);
-
-/* Set the peer process name (used by messaging layer) */
-XBT_PUBLIC(void) gras_socket_peer_proc_set(gras_socket_t sock,
- char *peer_proc);
-
-/***
- *** Plugin mechanism
- ***/
-
-/* A plugin type */
- typedef struct gras_trp_plugin_ s_gras_trp_plugin_t, *gras_trp_plugin_t;
-
-/* A plugin type */
- struct gras_trp_plugin_ {
- char *name;
-
- /* dst pointers are created and initialized with default values
- before call to socket_client/server.
- Retrive the info you need from there. */
- void (*socket_client) (gras_trp_plugin_t self, gras_socket_t dst);
- void (*socket_server) (gras_trp_plugin_t self, gras_socket_t dst);
-
- gras_socket_t(*socket_accept) (gras_socket_t from);
-
-
- /* socket_close() is responsible of telling the OS that the socket is over,
- but should not free the socket itself (beside the specific part) */
- void (*socket_close) (gras_socket_t sd);
-
- /* send/recv may be buffered */
- void (*send) (gras_socket_t sd,
- const char *data,
- unsigned long int size,
- int stable /* storage will survive until flush */ );
- int (*recv) (gras_socket_t sd, char *data, unsigned long int size);
- /* raw_send/raw_recv is never buffered (use it for measurement stuff) */
- void (*raw_send) (gras_socket_t sd,
- const char *data, unsigned long int size);
- int (*raw_recv) (gras_socket_t sd, char *data, unsigned long int size);
-
- /* flush has to make sure that the pending communications are achieved */
- void (*flush) (gras_socket_t sd);
-
- void *data; /* plugin-specific data */
-
- /* exit is responsible for freeing data and telling to the OS that
- this plugin is gone */
- /* exit=NULL, data gets brutally free()d by the generic interface.
- (ie exit function needed only when data contains pointers) */
- void (*exit) (gras_trp_plugin_t);
- };
-
-XBT_PUBLIC(gras_trp_plugin_t)
- gras_trp_plugin_get_by_name(const char *name);
-
/* Data of this module specific to each process
* (used by sg_process.c to cleanup the SG channel cruft)
*/
- typedef struct {
- /* set headers */
- unsigned int ID;
- char *name;
- unsigned int name_len;
+typedef struct {
+ /* set headers */
+ unsigned int ID;
+ char *name;
+ unsigned int name_len;
+
+ int myport; /* Port on which I listen myself */
- int myport; /* Port on which I listen myself */
+ xbt_dynar_t sockets; /* all sockets known to this process */
- xbt_dynar_t sockets; /* all sockets known to this process */
- xbt_dynar_t comms; /* SG cruft: the ongoing communications */
- xbt_dynar_t sockets_to_close; /* The listener is in charge of closing the sockets */
+ /* SG only elements. In RL, they are part of the OS ;) */
- } s_gras_trp_procdata_t, *gras_trp_procdata_t;
+ /* List of sockets ready to be select()ed */
+ xbt_queue_t msg_selectable_sockets; /* regular sockets */
+ xbt_queue_t meas_selectable_sockets; /* measurement ones */
+
+} s_gras_trp_procdata_t, *gras_trp_procdata_t;
/* Display the content of our socket set (debugging purpose) */
XBT_PUBLIC(void) gras_trp_socketset_dump(const char *name);
-#endif /* GRAS_TRP_INTERFACE_H */
+XBT_PUBLIC(xbt_socket_t) gras_trp_select(double timeout);
+
+#endif /* GRAS_TRP_INTERFACE_H */
