-/* $Id$ */
-
/* transport - low level communication (send/receive bunches of bytes) */
/* module's private interface masked even to other parts of GRAS. */
-/* 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 "xbt/sysdep.h"
#include "xbt/log.h"
-#include "xbt/error.h"
#include "xbt/dynar.h"
#include "xbt/dict.h"
-#include "gras/cond.h" /* gras_if_RL() */
+#include "gras/emul.h" /* gras_if_RL() */
-#include "gras_modinter.h" /* module init/exit */
-#include "gras/transport.h" /* rest of module interface */
+#include "gras_modinter.h" /* module init/exit */
+#include "gras/transport.h" /* rest of module interface */
#include "gras/Transport/transport_interface.h" /* semi-public API */
-#include "gras/Virtu/virtu_interface.h" /* socketset_get() */
-
-/**
- * s_gras_socket:
- *
- * Description of a socket.
- */
-typedef struct gras_trp_bufdata_ gras_trp_bufdata_t;
-
-typedef struct s_gras_socket {
- gras_trp_plugin_t *plugin;
-
- int incoming :1; /* true if we can read from this sock */
- int outgoing :1; /* true if we can write on this sock */
- int accepting :1; /* true if master incoming sock in tcp */
- int raw :1; /* true if this is an experiment socket instead of messaging */
-
- unsigned long int bufSize; /* what to say to the OS. field here to remember it when accepting */
-
- int sd;
- int port; /* port on this side */
- int peer_port; /* port on the other side */
- char *peer_name; /* hostname of the other side */
-
- void *data; /* plugin specific data */
-
- /* buffer plugin specific data. Yeah, C is not OO, so I got to trick */
- gras_trp_bufdata_t *bufdata;
-}s_gras_socket_t;
-
-void gras_trp_socket_new(int incomming,
- gras_socket_t *dst);
-
-/* The drivers */
-typedef xbt_error_t (*gras_trp_setup_t)(gras_trp_plugin_t *dst);
-
-xbt_error_t gras_trp_tcp_setup(gras_trp_plugin_t *plug);
-xbt_error_t gras_trp_file_setup(gras_trp_plugin_t *plug);
-xbt_error_t gras_trp_sg_setup(gras_trp_plugin_t *plug);
-xbt_error_t gras_trp_buf_setup(gras_trp_plugin_t *plug);
+#include "gras/Virtu/virtu_interface.h" /* libdata management */
-/*
+extern int gras_trp_libdata_id; /* our libdata identifier */
- I'm tired of that shit. the select in SG has to create a socket to expeditor
- manually do deal with the weirdness of the hostdata, themselves here to deal
- with the weird channel concept of SG and convert them back to ports.
+/* The function that select returned the last time we asked. We need this
+ because the TCP read are greedy and try to get as much data in their
+ buffer as possible (to avoid subsequent syscalls).
+ (measurement sockets are not buffered and thus not concerned).
- When introducing buffered transport (whith I want to get used in SG to debug
- the buffering itself), we should not make the rest of the code aware of the
- change and not specify code for this. This is bad design.
-
- But there is bad design all over the place, so fuck off for now, when we can
- get rid of MSG and rely directly on SG, this crude hack can go away. But in
- the meanwhile, I want to sleep this night (FIXME).
-
- Hu! You evil problem! Taste my axe!
-
-*/
-
-void gras_trp_buf_init_sock(gras_socket_t sock);
-
-
-/* Data exchange over raw sockets */
-xbt_error_t gras_socket_raw_exchange(gras_socket_t peer,
- int sender,
- unsigned int timeout,
- unsigned long int expSize,
- unsigned long int msgSize);
-
-xbt_dynar_t gras_socketset_get(void); /* FIXME:KILLME */
-
-#endif /* GRAS_TRP_PRIVATE_H */
+ So, we can get more than one message in one shoot. And when this happens,
+ we have to handle the same socket again afterward without select()ing at
+ all.
+
+ Then, this data is not a static of the TCP driver because we want to
+ zero it when it gets closed by the user. If not, we use an already freed
+ pointer, which is bad.
+
+ It gets tricky since gras_socket_close is part of the common API, not
+ only the RL one. */
+extern xbt_socket_t _gras_lastly_selected_socket;
+
+#endif /* GRAS_TRP_PRIVATE_H */
