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/*
* (c) Copyright 1990-1996 OPEN SOFTWARE FOUNDATION, INC.
* (c) Copyright 1990-1996 HEWLETT-PACKARD COMPANY
* (c) Copyright 1990-1996 DIGITAL EQUIPMENT CORPORATION
* (c) Copyright 1991, 1992 Siemens-Nixdorf Information Systems
* To anyone who acknowledges that this file is provided "AS IS" without
* any express or implied warranty: permission to use, copy, modify, and
* distribute this file for any purpose is hereby granted without fee,
* provided that the above copyright notices and this notice appears in
* all source code copies, and that none of the names listed above be used
* in advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. None of these organizations
* makes any representations about the suitability of this software for
* any purpose.
*/
/*
* Header file for CMA initialization
*/
#ifndef CMA_INIT
#define CMA_INIT
/*
* INCLUDE FILES
*/
#include <dce/cma_host.h>
#include <cma_errors.h>
/*
* CONSTANTS AND MACROS
*/
#define cma__c_env_maxattr 0
#define cma__c_env_minattr 1
#define cma__c_env_maxcond 2
#define cma__c_env_mincond 3
#define cma__c_env_maxmutex 4
#define cma__c_env_minmutex 5
#define cma__c_env_maxthread 6
#define cma__c_env_minthread 7
#define cma__c_env_maxcluster 8
#define cma__c_env_mincluster 9
#define cma__c_env_maxvp 10
#define cma__c_env_multiplex 11
#define cma__c_env_trace 12
#define cma__c_env_trace_file 13
#define cma__c_env_count 13
/*
* cma__int_init
*
* Initialize the main body of CMA exactly once.
*
* We raise an exception if, for some odd reason, there are already threads
* in the environment (e.g. kernel threads), and one of them is trying to
* initialize CMA before the first thread got all the way through the actual
* initialization. This code maintains the invariants: "after successfully
* calling CMA_INIT, you can call any CMA function", and "CMA is actually
* initialized at most once".
*/
/*#ifndef _HP_LIBC_R */
#if defined _HP_LIBC_R ||(defined(SNI_SVR4) && !defined(CMA_INIT_NEEDED))
# define cma__int_init()
#else
# define cma__int_init() { \
if (!cma__tac_isset(&cma__g_init_started)) { \
if (!cma__test_and_set (&cma__g_init_started)) { \
cma__init_static (); \
cma__test_and_set (&cma__g_init_done); \
} \
else if (!cma__tac_isset (&cma__g_init_done)) { \
cma__error (cma_s_inialrpro); \
}}}
#endif
/*
* TYPEDEFS
*/
typedef enum CMA__T_ENV_TYPE {
cma__c_env_type_int,
cma__c_env_type_file
} cma__t_env_type;
typedef struct CMA__T_ENV {
char *name; /* Name of environment variable */
cma__t_env_type type; /* Type of variable */
cma_t_integer value; /* Numeric value of the variable */
} cma__t_env;
/*
* GLOBAL DATA
*/
extern cma__t_env cma__g_env[cma__c_env_count];
extern cma__t_atomic_bit cma__g_init_started;
extern cma__t_atomic_bit cma__g_init_done;
extern char *cma__g_version;
/*
* INTERNAL INTERFACES
*/
extern void
cma__init_static (void); /* Initialize static data */
#if _CMA_OS_ != _CMA__VMS
extern void cma__init_atfork (void);
#endif
#endif
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