prsystem.h
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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is the Netscape Portable Runtime (NSPR).
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998-2000
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef prsystem_h___
- #define prsystem_h___
- /*
- ** API to NSPR functions returning system info.
- */
- #include "prtypes.h"
- PR_BEGIN_EXTERN_C
- /*
- ** Get the host' directory separator.
- ** Pathnames are then assumed to be of the form:
- ** [<sep><root_component><sep>]*(<component><sep>)<leaf_name>
- */
- NSPR_API(char) PR_GetDirectorySeparator(void);
- /*
- ** OBSOLETE -- the function name is misspelled.
- ** Use PR_GetDirectorySeparator instead.
- */
- NSPR_API(char) PR_GetDirectorySepartor(void);
- /*
- ** Get the host' path separator.
- ** Paths are assumed to be of the form:
- ** <directory>[<sep><directory>]*
- */
- NSPR_API(char) PR_GetPathSeparator(void);
- /* Types of information available via PR_GetSystemInfo(...) */
- typedef enum {
- PR_SI_HOSTNAME,
- PR_SI_SYSNAME,
- PR_SI_RELEASE,
- PR_SI_ARCHITECTURE
- } PRSysInfo;
- /*
- ** If successful returns a null termintated string in 'buf' for
- ** the information indicated in 'cmd'. If unseccussful the reason for
- ** the failure can be retrieved from PR_GetError().
- **
- ** The buffer is allocated by the caller and should be at least
- ** SYS_INFO_BUFFER_LENGTH bytes in length.
- */
- #define SYS_INFO_BUFFER_LENGTH 256
- NSPR_API(PRStatus) PR_GetSystemInfo(PRSysInfo cmd, char *buf, PRUint32 buflen);
- /*
- ** Return the number of bytes in a page
- */
- NSPR_API(PRInt32) PR_GetPageSize(void);
- /*
- ** Return log2 of the size of a page
- */
- NSPR_API(PRInt32) PR_GetPageShift(void);
- /*
- ** PR_GetNumberOfProcessors() -- returns the number of CPUs
- **
- ** Description:
- ** PR_GetNumberOfProcessors() extracts the number of processors
- ** (CPUs available in an SMP system) and returns the number.
- **
- ** Parameters:
- ** none
- **
- ** Returns:
- ** The number of available processors or -1 on error
- **
- */
- NSPR_API(PRInt32) PR_GetNumberOfProcessors( void );
- /*
- ** PR_GetPhysicalMemorySize() -- returns the amount of system RAM
- **
- ** Description:
- ** PR_GetPhysicalMemorySize() determines the amount of physical RAM
- ** in the system and returns the size in bytes.
- **
- ** Parameters:
- ** none
- **
- ** Returns:
- ** The amount of system RAM, or 0 on failure.
- **
- */
- NSPR_API(PRUint64) PR_GetPhysicalMemorySize(void);
- PR_END_EXTERN_C
- #endif /* prsystem_h___ */