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 GetCurrentProcess();
47 // This function retrieves the page size using GetSystemInfo and is present
48 // solely so it can be called once in Process::GetPageSize to initialize the
49 // static variable PageSize.
50 inline unsigned GetPageSizeOnce() {
51 // NOTE: A 32-bit application running under WOW64 is supposed to use
52 // GetNativeSystemInfo. However, this interface is not present prior
53 // to Windows XP so to use it requires dynamic linking. It is not clear
54 // how this affects the reported page size, if at all. One could argue
55 // that LLVM ought to run as 64-bits on a 64-bit system, anyway.
58 return static_cast<unsigned>(info.dwPageSize);
62 Process::GetPageSize() {
63 static const unsigned PageSize = GetPageSizeOnce();
68 Process::GetMallocUsage()
75 while (_heapwalk(&hinfo) == _HEAPOK)
82 Process::GetTimeUsage(
83 TimeValue& elapsed, TimeValue& user_time, TimeValue& sys_time)
85 elapsed = TimeValue::now();
87 uint64_t ProcCreate, ProcExit, KernelTime, UserTime;
88 GetProcessTimes(GetCurrentProcess(), (FILETIME*)&ProcCreate,
89 (FILETIME*)&ProcExit, (FILETIME*)&KernelTime,
90 (FILETIME*)&UserTime);
92 // FILETIME's are # of 100 nanosecond ticks (1/10th of a microsecond)
93 user_time.seconds( UserTime / 10000000 );
94 user_time.nanoseconds( unsigned(UserTime % 10000000) * 100 );
95 sys_time.seconds( KernelTime / 10000000 );
96 sys_time.nanoseconds( unsigned(KernelTime % 10000000) * 100 );
99 int Process::GetCurrentUserId()
104 int Process::GetCurrentGroupId()
109 // Some LLVM programs such as bugpoint produce core files as a normal part of
110 // their operation. To prevent the disk from filling up, this configuration item
111 // does what's necessary to prevent their generation.
112 void Process::PreventCoreFiles() {
113 // Windows doesn't do core files, but it does do modal pop-up message
114 // boxes. As this method is used by bugpoint, preventing these pop-ups
115 // is the moral equivalent of suppressing core files.
116 SetErrorMode(SEM_FAILCRITICALERRORS |
117 SEM_NOGPFAULTERRORBOX |
118 SEM_NOOPENFILEERRORBOX);
121 bool Process::StandardInIsUserInput() {
122 return FileDescriptorIsDisplayed(0);
125 bool Process::StandardOutIsDisplayed() {
126 return FileDescriptorIsDisplayed(1);
129 bool Process::StandardErrIsDisplayed() {
130 return FileDescriptorIsDisplayed(2);
133 bool Process::FileDescriptorIsDisplayed(int fd) {
134 DWORD Mode; // Unused
135 return (GetConsoleMode((HANDLE)_get_osfhandle(fd), &Mode) != 0);
138 unsigned Process::StandardOutColumns() {
139 unsigned Columns = 0;
140 CONSOLE_SCREEN_BUFFER_INFO csbi;
141 if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
142 Columns = csbi.dwSize.X;
146 unsigned Process::StandardErrColumns() {
147 unsigned Columns = 0;
148 CONSOLE_SCREEN_BUFFER_INFO csbi;
149 if (GetConsoleScreenBufferInfo(GetStdHandle(STD_ERROR_HANDLE), &csbi))
150 Columns = csbi.dwSize.X;
154 // The terminal always has colors.
155 bool Process::FileDescriptorHasColors(int fd) {
156 return FileDescriptorIsDisplayed(fd);
159 bool Process::StandardOutHasColors() {
160 return FileDescriptorHasColors(1);
163 bool Process::StandardErrHasColors() {
164 return FileDescriptorHasColors(2);
174 :defaultColor(GetCurrentColor()) {}
175 static unsigned GetCurrentColor() {
176 CONSOLE_SCREEN_BUFFER_INFO csbi;
177 if (GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &csbi))
178 return csbi.wAttributes;
181 WORD operator()() const { return defaultColor; }
184 DefaultColors defaultColors;
187 bool Process::ColorNeedsFlush() {
191 const char *Process::OutputBold(bool bg) {
192 WORD colors = DefaultColors::GetCurrentColor();
194 colors |= BACKGROUND_INTENSITY;
196 colors |= FOREGROUND_INTENSITY;
197 SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), colors);
201 const char *Process::OutputColor(char code, bool bold, bool bg) {
204 colors = ((code&1) ? BACKGROUND_RED : 0) |
205 ((code&2) ? BACKGROUND_GREEN : 0 ) |
206 ((code&4) ? BACKGROUND_BLUE : 0);
208 colors |= BACKGROUND_INTENSITY;
210 colors = ((code&1) ? FOREGROUND_RED : 0) |
211 ((code&2) ? FOREGROUND_GREEN : 0 ) |
212 ((code&4) ? FOREGROUND_BLUE : 0);
214 colors |= FOREGROUND_INTENSITY;
216 SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), colors);
220 static WORD GetConsoleTextAttribute(HANDLE hConsoleOutput) {
221 CONSOLE_SCREEN_BUFFER_INFO info;
222 GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &info);
223 return info.wAttributes;
226 const char *Process::OutputReverse() {
227 const WORD attributes
228 = GetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE));
230 const WORD foreground_mask = FOREGROUND_BLUE | FOREGROUND_GREEN |
231 FOREGROUND_RED | FOREGROUND_INTENSITY;
232 const WORD background_mask = BACKGROUND_BLUE | BACKGROUND_GREEN |
233 BACKGROUND_RED | BACKGROUND_INTENSITY;
234 const WORD color_mask = foreground_mask | background_mask;
236 WORD new_attributes =
237 ((attributes & FOREGROUND_BLUE )?BACKGROUND_BLUE :0) |
238 ((attributes & FOREGROUND_GREEN )?BACKGROUND_GREEN :0) |
239 ((attributes & FOREGROUND_RED )?BACKGROUND_RED :0) |
240 ((attributes & FOREGROUND_INTENSITY)?BACKGROUND_INTENSITY:0) |
241 ((attributes & BACKGROUND_BLUE )?FOREGROUND_BLUE :0) |
242 ((attributes & BACKGROUND_GREEN )?FOREGROUND_GREEN :0) |
243 ((attributes & BACKGROUND_RED )?FOREGROUND_RED :0) |
244 ((attributes & BACKGROUND_INTENSITY)?FOREGROUND_INTENSITY:0) |
246 new_attributes = (attributes & ~color_mask) | (new_attributes & color_mask);
248 SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), new_attributes);
252 const char *Process::ResetColor() {
253 SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), defaultColors());