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comparison foosdk/sdk/pfc/timers.cpp @ 1:20d02a178406 default tip

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*: check in everything else yay
author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
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0:e9bb126753e7 1:20d02a178406
1 #include "pfc-lite.h"
2
3 #include "timers.h"
4 #include "debug.h"
5
6 #if defined(_WIN32) && defined(PFC_HAVE_PROFILER)
7 #include <ShlObj.h>
8 #endif
9
10 #ifndef _WIN32
11 #include "nix-objects.h"
12 #include <time.h>
13 #endif
14
15 namespace pfc {
16
17 #ifdef PFC_HAVE_PROFILER
18
19 profiler_static::profiler_static(const char * p_name)
20 {
21 name = p_name;
22 total_time = 0;
23 num_called = 0;
24 }
25
26 static void profilerMsg(const char* msg) {
27 #ifdef _WIN32
28 if (!IsDebuggerPresent()) {
29 static HANDLE hWriteTo = INVALID_HANDLE_VALUE;
30 static bool initialized = false;
31 if (!initialized) {
32 initialized = true;
33 wchar_t path[1024] = {};
34 if (SUCCEEDED(SHGetFolderPath(NULL, CSIDL_DESKTOP, NULL, SHGFP_TYPE_CURRENT, path))) {
35 size_t l = wcslen(path);
36 if (l > 0) {
37 if (path[l - 1] != '\\') {
38 wcscat_s(path, L"\\");
39 }
40 wchar_t fn[256];
41 wsprintf(fn, L"profiler-%u.txt", GetProcessId(GetCurrentProcess()));
42 wcscat_s(path, fn);
43 hWriteTo = CreateFile(path, GENERIC_WRITE, 0, NULL, OPEN_ALWAYS, 0, NULL);
44 }
45 }
46 }
47 if (hWriteTo != INVALID_HANDLE_VALUE) {
48 SetFilePointer(hWriteTo, 0, 0, SEEK_END);
49 pfc::string8 temp = msg;
50 temp += "\r\n";
51 DWORD written = 0;
52 WriteFile(hWriteTo, temp.c_str(), (DWORD) temp.length(), &written, NULL);
53 }
54 }
55 #endif
56 outputDebugLine(msg);
57 }
58
59 profiler_static::~profiler_static()
60 {
61 try {
62 pfc::string8 message;
63 message << "profiler: " << pfc::format_pad_left(48,' ',name) << " - " <<
64 pfc::format_pad_right(16,' ',pfc::format_uint(total_time) ) << " cycles";
65
66 if (num_called > 0) {
67 message << " (executed " << num_called << " times, " << (total_time / num_called) << " average)";
68 }
69 profilerMsg(message);
70 } catch(...) {
71 //should never happen
72 OutputDebugString(_T("unexpected profiler failure\n"));
73 }
74 }
75 #endif
76
77 #ifndef _WIN32
78
79 void hires_timer::start() {
80 m_start = nixGetTime();
81 }
82 double hires_timer::query() const {
83 return nixGetTime() - m_start;
84 }
85 double hires_timer::query_reset() {
86 double t = nixGetTime();
87 double r = t - m_start;
88 m_start = t;
89 return r;
90 }
91 pfc::string8 hires_timer::queryString(unsigned precision) const {
92 return format_time_ex( query(), precision ).get_ptr();
93 }
94 #endif
95
96
97 uint64_t fileTimeWtoU(uint64_t ft) {
98 return (ft - 116444736000000000 + /*rounding*/10000000/2) / 10000000;
99 }
100 uint64_t fileTimeUtoW(uint64_t ft) {
101 return (ft * 10000000) + 116444736000000000;
102 }
103 #ifndef _WIN32
104 uint64_t fileTimeUtoW(const timespec & ts) {
105 uint64_t ft = (uint64_t)ts.tv_sec * 10000000 + (uint64_t)ts.tv_nsec / 100;
106 return ft + 116444736000000000;
107 }
108 #endif
109
110 uint64_t fileTimeNow() {
111 #ifdef _WIN32
112 uint64_t ret;
113 GetSystemTimeAsFileTime((FILETIME*)&ret);
114 return ret;
115 #else // not _WIN32
116 timespec ts = {};
117 auto status = clock_gettime( CLOCK_REALTIME, &ts);
118 PFC_ASSERT( status == 0 ); (void) status;
119 return fileTimeUtoW(ts);
120 #endif // _WIN32 or not
121 }
122
123 }