-/* $Id$ */
-
/* transport - low level communication (send/receive bunches of bytes) */
/* module's public interface exported within GRAS, but not to end user. */
-/* 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. */
#ifndef GRAS_TRP_INTERFACE_H
#define GRAS_TRP_INTERFACE_H
+#include "portable.h" /* sometimes needed for fd_set */
+#include "simix/simix.h"
+#include "xbt/queue.h"
+
+/***
+ *** Options
+ ***/
+extern int gras_opt_trp_nomoredata_on_close;
+
/***
*** Main user functions
***/
-gras_error_t gras_trp_chunk_send(gras_socket_t sd,
- char *data,
- long int size);
-gras_error_t gras_trp_chunk_recv(gras_socket_t sd,
- char *data,
- long int size);
-gras_error_t gras_trp_flush(gras_socket_t sd);
+/* 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 */
-gras_error_t
-gras_trp_select(double timeout,
- gras_socket_t *dst);
+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 mecanism
+ *** Plugin mechanism
***/
/* A plugin type */
-typedef struct gras_trp_plugin_ gras_trp_plugin_t;
+typedef struct gras_trp_plugin_ s_gras_trp_plugin_t, *gras_trp_plugin_t;
/* A plugin type */
struct gras_trp_plugin_ {
- char *name;
-
+ char *name;
+
/* dst pointers are created and initialized with default values
before call to socket_client/server.
Retrive the info you need from there. */
- gras_error_t (*socket_client)(gras_trp_plugin_t *self,
- gras_socket_t dst);
- gras_error_t (*socket_server)(gras_trp_plugin_t *self,
- gras_socket_t dst);
-
- gras_error_t (*socket_accept)(gras_socket_t sock,
- gras_socket_t *dst);
-
-
- /* 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);
-
- gras_error_t (*chunk_send)(gras_socket_t sd,
- const char *data,
- long int size);
- gras_error_t (*chunk_recv)(gras_socket_t sd,
- char *data,
- long int size);
+ void (*socket_client) (gras_trp_plugin_t self,const char *host,int port, gras_socket_t dst);
+ void (*socket_server) (gras_trp_plugin_t self, int port,gras_socket_t dst);
+
+ gras_socket_t(*socket_accept) (gras_socket_t from);
+
+ /* Getting info about who's speaking */
+ int (*my_port)(gras_socket_t sd);
+ int (*peer_port)(gras_socket_t sd);
+ const char* (*peer_name)(gras_socket_t sd);
+ const char* (*peer_proc)(gras_socket_t sd);
+ void (*peer_proc_set)(gras_socket_t sd,char*peer_proc);
+
+
+ /* 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 */
- gras_error_t (*flush)(gras_socket_t sd);
+ void (*flush) (gras_socket_t sd);
+
+ void *data; /* plugin-specific data */
- void *data; /* plugin-specific data */
-
- /* exit is responsible for freeing data and telling the OS this plugin goes */
- /* exit=NULL, data gets freed. (ie exit function needed only when data contains pointers) */
- void (*exit)(gras_trp_plugin_t *);
+ /* 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);
};
-gras_error_t
-gras_trp_plugin_get_by_name(const char *name,
- gras_trp_plugin_t **dst);
+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;
+
+ int myport; /* Port on which I listen myself */
+
+ xbt_dynar_t sockets; /* all sockets known to this process */
+
+ /* SG only elements. In RL, they are part of the OS ;) */
+
+ /* 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 */
+#endif /* GRAS_TRP_INTERFACE_H */
