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annotate nspr/pr/include/prsystem.h @ 4:b513267f632f tip

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Build DBM module
author Andre Heinecke <andre.heinecke@intevation.de>
date Tue, 05 Aug 2014 18:58:03 +0200
parents 1e5118fa0cb1
children
rev   line source
0
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1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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2 /* This Source Code Form is subject to the terms of the Mozilla Public
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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5
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6 #ifndef prsystem_h___
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7 #define prsystem_h___
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8
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9 /*
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10 ** API to NSPR functions returning system info.
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11 */
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12 #include "prtypes.h"
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13
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14 PR_BEGIN_EXTERN_C
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15
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16 /*
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17 ** Get the host' directory separator.
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18 ** Pathnames are then assumed to be of the form:
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19 ** [<sep><root_component><sep>]*(<component><sep>)<leaf_name>
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20 */
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21
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22 NSPR_API(char) PR_GetDirectorySeparator(void);
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23
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24 /*
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25 ** OBSOLETE -- the function name is misspelled.
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26 ** Use PR_GetDirectorySeparator instead.
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27 */
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28
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29 NSPR_API(char) PR_GetDirectorySepartor(void);
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30
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31 /*
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32 ** Get the host' path separator.
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33 ** Paths are assumed to be of the form:
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34 ** <directory>[<sep><directory>]*
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35 */
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36
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37 NSPR_API(char) PR_GetPathSeparator(void);
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38
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39 /* Types of information available via PR_GetSystemInfo(...) */
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40 typedef enum {
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41 PR_SI_HOSTNAME, /* the hostname with the domain name (if any)
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42 * removed */
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43 PR_SI_SYSNAME,
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44 PR_SI_RELEASE,
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45 PR_SI_ARCHITECTURE,
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46 PR_SI_HOSTNAME_UNTRUNCATED /* the hostname exactly as configured
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47 * on the system */
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48 } PRSysInfo;
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49
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50
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51 /*
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52 ** If successful returns a null termintated string in 'buf' for
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53 ** the information indicated in 'cmd'. If unseccussful the reason for
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54 ** the failure can be retrieved from PR_GetError().
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55 **
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56 ** The buffer is allocated by the caller and should be at least
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57 ** SYS_INFO_BUFFER_LENGTH bytes in length.
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58 */
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59
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60 #define SYS_INFO_BUFFER_LENGTH 256
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61
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62 NSPR_API(PRStatus) PR_GetSystemInfo(PRSysInfo cmd, char *buf, PRUint32 buflen);
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63
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64 /*
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65 ** Return the number of bytes in a page
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66 */
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67 NSPR_API(PRInt32) PR_GetPageSize(void);
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68
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69 /*
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70 ** Return log2 of the size of a page
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71 */
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72 NSPR_API(PRInt32) PR_GetPageShift(void);
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73
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74 /*
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75 ** PR_GetNumberOfProcessors() -- returns the number of CPUs
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76 **
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77 ** Description:
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78 ** PR_GetNumberOfProcessors() extracts the number of processors
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79 ** (CPUs available in an SMP system) and returns the number.
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80 **
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81 ** Parameters:
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82 ** none
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83 **
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84 ** Returns:
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85 ** The number of available processors or -1 on error
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86 **
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87 */
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88 NSPR_API(PRInt32) PR_GetNumberOfProcessors( void );
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89
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90 /*
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91 ** PR_GetPhysicalMemorySize() -- returns the amount of system RAM
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92 **
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93 ** Description:
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94 ** PR_GetPhysicalMemorySize() determines the amount of physical RAM
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95 ** in the system and returns the size in bytes.
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96 **
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97 ** Parameters:
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98 ** none
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99 **
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100 ** Returns:
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101 ** The amount of system RAM, or 0 on failure.
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102 **
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103 */
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104 NSPR_API(PRUint64) PR_GetPhysicalMemorySize(void);
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105
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106 PR_END_EXTERN_C
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107
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108 #endif /* prsystem_h___ */
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