1 //===- Win32/Process.cpp - Win32 Process Implementation ------- -*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file provides the Win32 specific implementation of the Process class.
12 //===----------------------------------------------------------------------===//
21 #if (HAVE_LIBPSAPI != 1)
22 #error "libpsapi.a should be present"
25 #pragma comment(lib, "psapi.lib")
28 //===----------------------------------------------------------------------===//
29 //=== WARNING: Implementation here must contain only Win32 specific code
30 //=== and must not be UNIX code
31 //===----------------------------------------------------------------------===//
34 // This ban should be lifted when MinGW 1.0+ has defined this value.
42 process::id_type self_process::get_id() {
43 return GetCurrentProcessId();
46 static TimeValue getTimeValueFromFILETIME(FILETIME Time) {
47 ULARGE_INTEGER TimeInteger;
48 TimeInteger.LowPart = Time.dwLowDateTime;
49 TimeInteger.HighPart = Time.dwHighDateTime;
51 // FILETIME's are # of 100 nanosecond ticks (1/10th of a microsecond)
53 static_cast<TimeValue::SecondsType>(TimeInteger.QuadPart / 10000000),
54 static_cast<TimeValue::NanoSecondsType>(
55 (TimeInteger.QuadPart % 10000000) * 100));
58 TimeValue self_process::get_user_time() const {
59 FILETIME ProcCreate, ProcExit, KernelTime, UserTime;
60 if (GetProcessTimes(GetCurrentProcess(), &ProcCreate, &ProcExit, &KernelTime,
64 return getTimeValueFromFILETIME(UserTime);
67 TimeValue self_process::get_system_time() const {
68 FILETIME ProcCreate, ProcExit, KernelTime, UserTime;
69 if (GetProcessTimes(GetCurrentProcess(), &ProcCreate, &ProcExit, &KernelTime,
73 return getTimeValueFromFILETIME(KernelTime);
76 // This function retrieves the page size using GetSystemInfo and is present
77 // solely so it can be called once to initialize the self_process member below.
78 static unsigned getPageSize() {
79 // NOTE: A 32-bit application running under WOW64 is supposed to use
80 // GetNativeSystemInfo. However, this interface is not present prior
81 // to Windows XP so to use it requires dynamic linking. It is not clear
82 // how this affects the reported page size, if at all. One could argue
83 // that LLVM ought to run as 64-bits on a 64-bit system, anyway.
86 return static_cast<unsigned>(info.dwPageSize);
89 // This constructor guaranteed to be run exactly once on a single thread, and
90 // sets up various process invariants that can be queried cheaply from then on.
91 self_process::self_process() : PageSize(getPageSize()) {
96 Process::GetMallocUsage()
103 while (_heapwalk(&hinfo) == _HEAPOK)
109 void Process::GetTimeUsage(TimeValue &elapsed, TimeValue &user_time,
110 TimeValue &sys_time) {
111 elapsed = TimeValue::now();
113 FILETIME ProcCreate, ProcExit, KernelTime, UserTime;
114 if (GetProcessTimes(GetCurrentProcess(), &ProcCreate, &ProcExit, &KernelTime,
118 user_time = getTimeValueFromFILETIME(UserTime);
119 sys_time = getTimeValueFromFILETIME(KernelTime);
122 // Some LLVM programs such as bugpoint produce core files as a normal part of
123 // their operation. To prevent the disk from filling up, this configuration
124 // item does what's necessary to prevent their generation.
125 void Process::PreventCoreFiles() {
126 // Windows does have the concept of core files, called minidumps. However,
127 // disabling minidumps for a particular application extends past the lifetime
128 // of that application, which is the incorrect behavior for this API.
129 // Additionally, the APIs require elevated privileges to disable and re-
130 // enable minidumps, which makes this untenable. For more information, see
131 // WerAddExcludedApplication and WerRemoveExcludedApplication (Vista and
134 // Windows also has modal pop-up message boxes. As this method is used by
135 // bugpoint, preventing these pop-ups is additionally important.
136 SetErrorMode(SEM_FAILCRITICALERRORS |
137 SEM_NOGPFAULTERRORBOX |
138 SEM_NOOPENFILEERRORBOX);
141 bool Process::StandardInIsUserInput() {
142 return FileDescriptorIsDisplayed(0);
145 bool Process::StandardOutIsDisplayed() {
146 return FileDescriptorIsDisplayed(1);
149 bool Process::StandardErrIsDisplayed() {
150 return FileDescriptorIsDisplayed(2);
153 bool Process::FileDescriptorIsDisplayed(int fd) {
154 DWORD Mode; // Unused
155 return (GetConsoleMode((HANDLE)_get_osfhandle(fd), &Mode) != 0);
158 unsigned Process::StandardOutColumns() {
159 unsigned Columns = 0;
160 CONSOLE_SCREEN_BUFFER_INFO csbi;
161 if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
162 Columns = csbi.dwSize.X;
166 unsigned Process::StandardErrColumns() {
167 unsigned Columns = 0;
168 CONSOLE_SCREEN_BUFFER_INFO csbi;
169 if (GetConsoleScreenBufferInfo(GetStdHandle(STD_ERROR_HANDLE), &csbi))
170 Columns = csbi.dwSize.X;
174 // The terminal always has colors.
175 bool Process::FileDescriptorHasColors(int fd) {
176 return FileDescriptorIsDisplayed(fd);
179 bool Process::StandardOutHasColors() {
180 return FileDescriptorHasColors(1);
183 bool Process::StandardErrHasColors() {
184 return FileDescriptorHasColors(2);
194 :defaultColor(GetCurrentColor()) {}
195 static unsigned GetCurrentColor() {
196 CONSOLE_SCREEN_BUFFER_INFO csbi;
197 if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
198 return csbi.wAttributes;
201 WORD operator()() const { return defaultColor; }
204 DefaultColors defaultColors;
207 bool Process::ColorNeedsFlush() {
211 const char *Process::OutputBold(bool bg) {
212 WORD colors = DefaultColors::GetCurrentColor();
214 colors |= BACKGROUND_INTENSITY;
216 colors |= FOREGROUND_INTENSITY;
217 SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), colors);
221 const char *Process::OutputColor(char code, bool bold, bool bg) {
224 colors = ((code&1) ? BACKGROUND_RED : 0) |
225 ((code&2) ? BACKGROUND_GREEN : 0 ) |
226 ((code&4) ? BACKGROUND_BLUE : 0);
228 colors |= BACKGROUND_INTENSITY;
230 colors = ((code&1) ? FOREGROUND_RED : 0) |
231 ((code&2) ? FOREGROUND_GREEN : 0 ) |
232 ((code&4) ? FOREGROUND_BLUE : 0);
234 colors |= FOREGROUND_INTENSITY;
236 SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), colors);
240 static WORD GetConsoleTextAttribute(HANDLE hConsoleOutput) {
241 CONSOLE_SCREEN_BUFFER_INFO info;
242 GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &info);
243 return info.wAttributes;
246 const char *Process::OutputReverse() {
247 const WORD attributes
248 = GetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE));
250 const WORD foreground_mask = FOREGROUND_BLUE | FOREGROUND_GREEN |
251 FOREGROUND_RED | FOREGROUND_INTENSITY;
252 const WORD background_mask = BACKGROUND_BLUE | BACKGROUND_GREEN |
253 BACKGROUND_RED | BACKGROUND_INTENSITY;
254 const WORD color_mask = foreground_mask | background_mask;
256 WORD new_attributes =
257 ((attributes & FOREGROUND_BLUE )?BACKGROUND_BLUE :0) |
258 ((attributes & FOREGROUND_GREEN )?BACKGROUND_GREEN :0) |
259 ((attributes & FOREGROUND_RED )?BACKGROUND_RED :0) |
260 ((attributes & FOREGROUND_INTENSITY)?BACKGROUND_INTENSITY:0) |
261 ((attributes & BACKGROUND_BLUE )?FOREGROUND_BLUE :0) |
262 ((attributes & BACKGROUND_GREEN )?FOREGROUND_GREEN :0) |
263 ((attributes & BACKGROUND_RED )?FOREGROUND_RED :0) |
264 ((attributes & BACKGROUND_INTENSITY)?FOREGROUND_INTENSITY:0) |
266 new_attributes = (attributes & ~color_mask) | (new_attributes & color_mask);
268 SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), new_attributes);
272 const char *Process::ResetColor() {
273 SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), defaultColors());