3 /* transport - low level communication (send/receive bunches of bytes) */
5 /* module's public interface exported within GRAS, but not to end user. */
7 /* Copyright (c) 2004 Martin Quinson. All rights reserved. */
9 /* This program is free software; you can redistribute it and/or modify it
10 * under the terms of the license (GNU LGPL) which comes with this package. */
12 #ifndef GRAS_TRP_INTERFACE_H
13 #define GRAS_TRP_INTERFACE_H
16 *** Main user functions
18 void gras_trp_chunk_send(gras_socket_t sd,
21 void gras_trp_chunk_recv(gras_socket_t sd,
24 void gras_trp_flush(gras_socket_t sd);
26 /* Find which socket needs to be read next */
27 gras_socket_t gras_trp_select(double timeout);
35 typedef struct gras_trp_plugin_ s_gras_trp_plugin_t, *gras_trp_plugin_t;
38 struct gras_trp_plugin_ {
41 /* dst pointers are created and initialized with default values
42 before call to socket_client/server.
43 Retrive the info you need from there. */
44 void (*socket_client)(gras_trp_plugin_t self,
46 void (*socket_server)(gras_trp_plugin_t self,
49 gras_socket_t (*socket_accept)(gras_socket_t from);
52 /* socket_close() is responsible of telling the OS that the socket is over,
53 but should not free the socket itself (beside the specific part) */
54 void (*socket_close)(gras_socket_t sd);
56 void (*chunk_send)(gras_socket_t sd,
58 unsigned long int size);
59 void (*chunk_recv)(gras_socket_t sd,
61 unsigned long int size,
62 unsigned long int bufsize);
64 /* flush has to make sure that the pending communications are achieved */
65 void (*flush)(gras_socket_t sd);
67 void *data; /* plugin-specific data */
69 /* exit is responsible for freeing data and telling the OS this plugin goes */
70 /* exit=NULL, data gets freed. (ie exit function needed only when data contains pointers) */
71 void (*exit)(gras_trp_plugin_t);
75 gras_trp_plugin_get_by_name(const char *name);
77 /* Data of this module specific to each process
78 * (used by sg_process.c to cleanup the SG channel cruft)
81 /* SG only elements. In RL, they are part of the OS ;) */
82 int chan; /* Formated messages channel */
83 int measChan; /* Unformated echange channel for performance measurement*/
84 xbt_dynar_t sockets; /* all sockets known to this process */
86 } s_gras_trp_procdata_t,*gras_trp_procdata_t;
88 #endif /* GRAS_TRP_INTERFACE_H */