X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6511b78ff810ead55a110d42b01a08255a55b56d..1a2592601e29b027872580cbfc364194f8b01ba6:/src/gras/Transport/transport_interface.h diff --git a/src/gras/Transport/transport_interface.h b/src/gras/Transport/transport_interface.h index d24e43aa70..d59cef130a 100644 --- a/src/gras/Transport/transport_interface.h +++ b/src/gras/Transport/transport_interface.h @@ -1,94 +1,121 @@ -/* $Id$ */ - /* 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, - size_t size); -gras_error_t gras_trp_chunk_recv(gras_socket_t *sd, - char *data, - size_t size); +/* 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); /*** - *** Module declaration + *** Plugin mechanism ***/ -gras_error_t gras_trp_init(void); -void gras_trp_exit(void); -/*** - *** Plugin mecanism - ***/ +/* A plugin type */ +typedef struct gras_trp_plugin_ s_gras_trp_plugin_t, *gras_trp_plugin_t; /* A plugin type */ -typedef struct gras_trp_plugin_ gras_trp_plugin_t; +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,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 */ + 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); -/** - * e_gras_trp_plugin: - * - * Caracterize each possible transport plugin +/* Data of this module specific to each process + * (used by sg_process.c to cleanup the SG channel cruft) */ -typedef enum e_gras_trp_plugin { - e_gras_trp_plugin_undefined = 0, - - e_gras_trp_plugin_tcp -} gras_trp_plugin_type_t; +typedef struct { + /* set headers */ + unsigned int ID; + char *name; + unsigned int name_len; -/* A plugin type */ -struct gras_trp_plugin_ { - char *name; - - /* dst pointers are created and initialized with default values - before call to socket_client/server*/ - gras_error_t (*socket_client)(gras_trp_plugin_t *self, - const char *host, - unsigned short port, - /* OUT */ gras_socket_t *dst); - gras_error_t (*socket_server)(gras_trp_plugin_t *self, - unsigned short port, - /* OUT */ gras_socket_t *dst); - - gras_error_t (*socket_accept)(gras_socket_t *sock, - /* OUT */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, - char *data, - size_t size); - gras_error_t (*chunk_recv)(gras_socket_t *sd, - char *Data, - size_t size); - - void *specific; - void (*free_specific)(void *); -}; + 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; -gras_error_t -gras_trp_plugin_get_by_name(const char *name, - gras_trp_plugin_t **dst); +/* 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 */