3 /* messaging - high level communication (send/receive messages) */
5 /* module's private interface masked even to other parts of GRAS. */
7 /* Copyright (c) 2003, 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_MESSAGE_PRIVATE_H
13 #define GRAS_MESSAGE_PRIVATE_H
15 #include "gras_config.h"
17 #include "xbt/sysdep.h"
19 #include "xbt/dynar.h"
21 #include "gras/transport.h"
22 #include "gras/datadesc.h"
23 #include "gras/virtu.h"
25 #include "gras/messages.h"
26 #include "gras/timer.h"
27 #include "gras_modinter.h"
29 #include "gras/Msg/msg_interface.h"
31 extern char _GRAS_header[6];
33 extern int gras_msg_libdata_id; /* The identifier of our libdata */
36 e_gras_msg_kind_unknown = 0,
37 e_gras_msg_kind_oneway = 1
39 method call (answer expected; sessionID attached)
40 successful return (usual datatype attached, with sessionID)
41 error return (payload = exception)
42 [+ call cancel, and others]
44 forwarding request and other application level routing stuff
50 /** @brief Message instance */
53 e_gras_msg_kind_t kind;
57 } s_gras_msg_t, *gras_msg_t;
62 * Message type descriptor. There one of these for each registered version.
64 typedef struct s_gras_msgtype {
65 /* headers for the data set */
68 unsigned int name_len;
72 gras_datadesc_type_t ctn_type;
75 extern xbt_set_t _gras_msgtype_set; /* of gras_msgtype_t */
76 void gras_msgtype_free(void *msgtype);
79 /* functions to extract msg from socket or put it on wire (depend RL vs SG) */
80 void gras_msg_recv(gras_socket_t sock,
81 gras_msg_t msg/*OUT*/);
82 void gras_msg_send_ext(gras_socket_t sock,
83 e_gras_msg_kind_t kind,
84 gras_msgtype_t msgtype,
90 * association between msg ID and cb list for a given process
92 struct s_gras_cblist {
94 xbt_dynar_t cbs; /* of gras_msg_cb_t */
97 typedef struct s_gras_cblist gras_cblist_t;
98 void gras_cbl_free(void *); /* used to free the memory at the end */
99 void gras_cblist_free(void *cbl);
108 void_f_void_t action;
110 } s_gras_timer_t, *gras_timer_t;
112 /* returns 0 if it handled a timer, or the delay until next timer, or -1 if no armed timer */
113 double gras_msg_timer_handle(void);
116 #endif /* GRAS_MESSAGE_PRIVATE_H */