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comparison deps/Platinum/ThirdParty/Neptune/Source/System/Win32/NptWin32System.cpp @ 0:3425707ddbf6

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Initial import (hopefully this mercurial stuff works...)
author fraserofthenight
date Mon, 06 Jul 2009 08:06:28 -0700
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-1:000000000000 0:3425707ddbf6
1 /*****************************************************************
2 |
3 | Neptune - System :: Win32 Implementation
4 |
5 | (c) 2001-2006 Gilles Boccon-Gibod
6 | Author: Gilles Boccon-Gibod (bok@bok.net)
7 |
8 ****************************************************************/
9
10 /*----------------------------------------------------------------------
11 | includes
12 +---------------------------------------------------------------------*/
13 #if defined(_XBOX)
14 #include <xtl.h>
15 #else
16 #include <windows.h>
17 #endif
18
19 #if !defined(_WIN32_WCE)
20 #include <sys/timeb.h>
21 #endif
22
23 #include "NptConfig.h"
24 #include "NptTypes.h"
25 #include "NptSystem.h"
26 #include "NptResults.h"
27 #include "NptDebug.h"
28
29 /*----------------------------------------------------------------------
30 | NPT_System::GetProcessId
31 +---------------------------------------------------------------------*/
32 NPT_Result
33 NPT_System::GetProcessId(NPT_UInt32& id)
34 {
35 //id = getpid();
36 id = 0;
37 return NPT_SUCCESS;
38 }
39
40 #if defined(_WIN32_WCE)
41 /*----------------------------------------------------------------------
42 | NPT_System::GetCurrentTimeStamp
43 +---------------------------------------------------------------------*/
44 NPT_Result
45 NPT_System::GetCurrentTimeStamp(NPT_TimeStamp& now)
46 {
47 SYSTEMTIME stime;
48 FILETIME ftime;
49 __int64 time64;
50 GetSystemTime(&stime);
51 SystemTimeToFileTime(&stime, &ftime);
52
53 /* convert to 64-bits 100-nanoseconds value */
54 time64 = (((unsigned __int64)ftime.dwHighDateTime)<<32) | ((unsigned __int64)ftime.dwLowDateTime);
55 time64 -= 116444736000000000; /* convert from the Windows epoch (Jan. 1, 1601) to the
56 * Unix epoch (Jan. 1, 1970) */
57
58 now.m_Seconds = (NPT_Int32)(time64/10000000);
59 now.m_NanoSeconds = 100*(NPT_Int32)(time64-((unsigned __int64)now.m_Seconds*10000000));
60
61 return NPT_SUCCESS;
62 }
63 #else
64 /*----------------------------------------------------------------------
65 | NPT_System::GetCurrentTimeStamp
66 +---------------------------------------------------------------------*/
67 NPT_Result
68 NPT_System::GetCurrentTimeStamp(NPT_TimeStamp& now)
69 {
70 struct _timeb time_stamp;
71
72 #if defined(_MSC_VER) && (_MSC_VER >= 1400)
73 _ftime_s(&time_stamp);
74 #else
75 _ftime(&time_stamp);
76 #endif
77 now.m_Seconds = (long)time_stamp.time;
78 now.m_NanoSeconds = (long)time_stamp.millitm*1000000;
79
80 return NPT_SUCCESS;
81 }
82 #endif
83
84 /*----------------------------------------------------------------------
85 | NPT_System::Sleep
86 +---------------------------------------------------------------------*/
87 NPT_Result
88 NPT_System::Sleep(const NPT_TimeInterval& duration)
89 {
90 DWORD milliseconds = 1000*duration.m_Seconds + duration.m_NanoSeconds/1000000;
91 ::Sleep(milliseconds);
92
93 return NPT_SUCCESS;
94 }
95
96 /*----------------------------------------------------------------------
97 | NPT_System::SleepUntil
98 +---------------------------------------------------------------------*/
99 NPT_Result
100 NPT_System::SleepUntil(const NPT_TimeStamp& when)
101 {
102 NPT_TimeStamp now;
103 GetCurrentTimeStamp(now);
104 if (when > now) {
105 NPT_TimeInterval duration = when-now;
106 return Sleep(duration);
107 } else {
108 return NPT_SUCCESS;
109 }
110 }
111
112 /*----------------------------------------------------------------------
113 | NPT_System::SetRandomSeed
114 +---------------------------------------------------------------------*/
115 NPT_Result
116 NPT_System::SetRandomSeed(unsigned int seed)
117 {
118 srand(seed);
119 return NPT_SUCCESS;
120 }
121
122 /*----------------------------------------------------------------------
123 | NPT_System::NPT_System
124 +---------------------------------------------------------------------*/
125 NPT_UInt32
126 NPT_System::GetRandomInteger()
127 {
128 static bool seeded = false;
129 if (seeded == false) {
130 NPT_TimeStamp now;
131 GetCurrentTimeStamp(now);
132 srand(now.m_NanoSeconds);
133 seeded = true;
134 }
135
136 return rand();
137 }
138