blob: b3e14e7f91d2fb9dce340daae2da8900d22d827a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#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, /* the hostname with the domain name (if any)
* removed */
PR_SI_SYSNAME,
PR_SI_RELEASE,
PR_SI_ARCHITECTURE,
PR_SI_HOSTNAME_UNTRUNCATED /* the hostname exactly as configured
* on the system */
} 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___ */
|
