X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/d11b30e2f4ac9920cf350e76147d065907b71418..1a2592601e29b027872580cbfc364194f8b01ba6:/src/gras/Transport/transport_interface.h diff --git a/src/gras/Transport/transport_interface.h b/src/gras/Transport/transport_interface.h index ba43fe5185..d59cef130a 100644 --- a/src/gras/Transport/transport_interface.h +++ b/src/gras/Transport/transport_interface.h @@ -1,10 +1,9 @@ -/* $Id$ */ - /* 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. */ @@ -12,22 +11,31 @@ #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 ***/ -xbt_error_t gras_trp_chunk_send(gras_socket_t sd, - char *data, - long int size); -xbt_error_t gras_trp_chunk_recv(gras_socket_t sd, - char *data, - long int size); -xbt_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 */ -xbt_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 mechanism @@ -38,54 +46,76 @@ 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. */ - xbt_error_t (*socket_client)(gras_trp_plugin_t self, - gras_socket_t dst); - xbt_error_t (*socket_server)(gras_trp_plugin_t self, - gras_socket_t dst); - - xbt_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); - - xbt_error_t (*chunk_send)(gras_socket_t sd, - const char *data, - unsigned long int size); - xbt_error_t (*chunk_recv)(gras_socket_t sd, - char *data, - unsigned 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 */ - xbt_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); }; -xbt_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 { - /* SG only elements. In RL, they are part of the OS ;) */ - int chan; /* Formated messages channel */ - int measChan; /* Unformated echange channel for performance measurement*/ - xbt_dynar_t sockets; /* all sockets known to this process */ - -} s_gras_trp_procdata_t,*gras_trp_procdata_t; - -#endif /* GRAS_TRP_INTERFACE_H */ + /* 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 */