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