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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| 2 /* ***** BEGIN LICENSE BLOCK ***** |
| 3 * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| 4 * |
| 5 * The contents of this file are subject to the Mozilla Public License Version |
| 6 * 1.1 (the "License"); you may not use this file except in compliance with |
| 7 * the License. You may obtain a copy of the License at |
| 8 * http://www.mozilla.org/MPL/ |
| 9 * |
| 10 * Software distributed under the License is distributed on an "AS IS" basis, |
| 11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| 12 * for the specific language governing rights and limitations under the |
| 13 * License. |
| 14 * |
| 15 * The Original Code is the Netscape Portable Runtime (NSPR). |
| 16 * |
| 17 * The Initial Developer of the Original Code is |
| 18 * Netscape Communications Corporation. |
| 19 * Portions created by the Initial Developer are Copyright (C) 1998-2000 |
| 20 * the Initial Developer. All Rights Reserved. |
| 21 * |
| 22 * Contributor(s): |
| 23 * |
| 24 * Alternatively, the contents of this file may be used under the terms of |
| 25 * either the GNU General Public License Version 2 or later (the "GPL"), or |
| 26 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| 27 * in which case the provisions of the GPL or the LGPL are applicable instead |
| 28 * of those above. If you wish to allow use of your version of this file only |
| 29 * under the terms of either the GPL or the LGPL, and not to allow others to |
| 30 * use your version of this file under the terms of the MPL, indicate your |
| 31 * decision by deleting the provisions above and replace them with the notice |
| 32 * and other provisions required by the GPL or the LGPL. If you do not delete |
| 33 * the provisions above, a recipient may use your version of this file under |
| 34 * the terms of any one of the MPL, the GPL or the LGPL. |
| 35 * |
| 36 * ***** END LICENSE BLOCK ***** */ |
| 37 |
| 38 #ifndef prsystem_h___ |
| 39 #define prsystem_h___ |
| 40 |
| 41 /* |
| 42 ** API to NSPR functions returning system info. |
| 43 */ |
| 44 #include "prtypes.h" |
| 45 |
| 46 PR_BEGIN_EXTERN_C |
| 47 |
| 48 /* |
| 49 ** Get the host' directory separator. |
| 50 ** Pathnames are then assumed to be of the form: |
| 51 ** [<sep><root_component><sep>]*(<component><sep>)<leaf_name> |
| 52 */ |
| 53 |
| 54 NSPR_API(char) PR_GetDirectorySeparator(void); |
| 55 |
| 56 /* |
| 57 ** OBSOLETE -- the function name is misspelled. |
| 58 ** Use PR_GetDirectorySeparator instead. |
| 59 */ |
| 60 |
| 61 NSPR_API(char) PR_GetDirectorySepartor(void); |
| 62 |
| 63 /* |
| 64 ** Get the host' path separator. |
| 65 ** Paths are assumed to be of the form: |
| 66 ** <directory>[<sep><directory>]* |
| 67 */ |
| 68 |
| 69 NSPR_API(char) PR_GetPathSeparator(void); |
| 70 |
| 71 /* Types of information available via PR_GetSystemInfo(...) */ |
| 72 typedef enum { |
| 73 PR_SI_HOSTNAME, |
| 74 PR_SI_SYSNAME, |
| 75 PR_SI_RELEASE, |
| 76 PR_SI_ARCHITECTURE |
| 77 } PRSysInfo; |
| 78 |
| 79 |
| 80 /* |
| 81 ** If successful returns a null termintated string in 'buf' for |
| 82 ** the information indicated in 'cmd'. If unseccussful the reason for |
| 83 ** the failure can be retrieved from PR_GetError(). |
| 84 ** |
| 85 ** The buffer is allocated by the caller and should be at least |
| 86 ** SYS_INFO_BUFFER_LENGTH bytes in length. |
| 87 */ |
| 88 |
| 89 #define SYS_INFO_BUFFER_LENGTH 256 |
| 90 |
| 91 NSPR_API(PRStatus) PR_GetSystemInfo(PRSysInfo cmd, char *buf, PRUint32 buflen); |
| 92 |
| 93 /* |
| 94 ** Return the number of bytes in a page |
| 95 */ |
| 96 NSPR_API(PRInt32) PR_GetPageSize(void); |
| 97 |
| 98 /* |
| 99 ** Return log2 of the size of a page |
| 100 */ |
| 101 NSPR_API(PRInt32) PR_GetPageShift(void); |
| 102 |
| 103 /* |
| 104 ** PR_GetNumberOfProcessors() -- returns the number of CPUs |
| 105 ** |
| 106 ** Description: |
| 107 ** PR_GetNumberOfProcessors() extracts the number of processors |
| 108 ** (CPUs available in an SMP system) and returns the number. |
| 109 ** |
| 110 ** Parameters: |
| 111 ** none |
| 112 ** |
| 113 ** Returns: |
| 114 ** The number of available processors or -1 on error |
| 115 ** |
| 116 */ |
| 117 NSPR_API(PRInt32) PR_GetNumberOfProcessors( void ); |
| 118 |
| 119 /* |
| 120 ** PR_GetPhysicalMemorySize() -- returns the amount of system RAM |
| 121 ** |
| 122 ** Description: |
| 123 ** PR_GetPhysicalMemorySize() determines the amount of physical RAM |
| 124 ** in the system and returns the size in bytes. |
| 125 ** |
| 126 ** Parameters: |
| 127 ** none |
| 128 ** |
| 129 ** Returns: |
| 130 ** The amount of system RAM, or 0 on failure. |
| 131 ** |
| 132 */ |
| 133 NSPR_API(PRUint64) PR_GetPhysicalMemorySize(void); |
| 134 |
| 135 PR_END_EXTERN_C |
| 136 |
| 137 #endif /* prsystem_h___ */ |
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