3 /* gras/process.h - Manipulating data related to an host. */
5 /* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved. */
7 /* This program is free software; you can redistribute it and/or modify it
8 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #ifndef GRAS_PROCESS_H
11 #define GRAS_PROCESS_H
13 #include "xbt/misc.h" /* SG_BEGIN_DECL */
17 /* **************************************************************************
18 * Initializing the processes
19 * **************************************************************************/
23 * Perform the various intialisations needed by gras. Each process must run it
25 void gras_process_init(void);
30 * Frees the memory allocated by gras. Processes should run it
32 void gras_process_exit(void);
34 /****************************************************************************/
35 /* Manipulating User Data */
36 /****************************************************************************/
38 /** \addtogroup GRAS_globals
39 * \brief Handling global variables so that it works on simulator.
41 * In GRAS, using globals is forbidden since the "processes" will
42 * sometimes run as a thread inside the same process (namely, in
43 * simulation mode). So, you have to put all globals in a structure, and
46 * Use the \ref gras_userdata_new macro to create a new user data (or malloc it
47 * and use \ref gras_userdata_set yourself), and \ref gras_userdata_get to
48 * retrieve a reference to it.
53 * \brief Get the data associated with the current process.
54 * \ingroup GRAS_globals
56 void *gras_userdata_get(void);
59 * \brief Set the data associated with the current process.
60 * \ingroup GRAS_globals
62 void gras_userdata_set(void *ud);
64 /** \brief Malloc and set the data associated with the current process. */
65 #define gras_userdata_new(type) (gras_userdata_set(xbt_new0(type,1)),gras_userdata_get())
70 #endif /* GRAS_PROCESS_H */