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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [osf-share/] [cma_init.h] - Blame information for rev 1765

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1 106 markom
/*
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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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