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| author | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
|---|---|---|
| committer | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
| commit | 0ea5fc66924303d1bf73ba283a383e2aadee02f2 (patch) | |
| tree | 2568e71a7ccc44ec23b8bb3f0ff97fb6bf2ed709 /docs/doxygen/nel/system__info_8cpp-source.html | |
| download | nevrax-website-self-hostable-0ea5fc66924303d1bf73ba283a383e2aadee02f2.tar.xz nevrax-website-self-hostable-0ea5fc66924303d1bf73ba283a383e2aadee02f2.zip | |
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doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<hr><h1>system_info.cpp</h1><a href="system__info_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 +00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font> +00008 <font class="comment"> *</font> +00009 <font class="comment"> * This file is part of NEVRAX NEL.</font> +00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font> +00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font> +00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font> +00013 <font class="comment"> * any later version.</font> +00014 <font class="comment"></font> +00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font> +00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font> +00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font> +00018 <font class="comment"> * General Public License for more details.</font> +00019 <font class="comment"></font> +00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font> +00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font> +00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font> +00023 <font class="comment"> * MA 02111-1307, USA.</font> +00024 <font class="comment"> */</font> +00025 +00026 <font class="preprocessor">#include "<a class="code" href="stdmisc_8h.html">stdmisc.h</a>"</font> +00027 +00028 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00029 <font class="preprocessor"></font><font class="preprocessor">#include <windows.h></font> +00030 <font class="preprocessor">#include <tchar.h></font> +00031 <font class="preprocessor">#else</font> +00032 <font class="preprocessor"></font><font class="preprocessor">#include <sys/types.h></font> +00033 <font class="preprocessor">#include <sys/stat.h></font> +00034 <font class="preprocessor">#include <fcntl.h></font> +00035 <font class="preprocessor">#include <<a class="code" href="unistd_8h.html">unistd.h</a>></font> +00036 <font class="preprocessor">#endif</font> +00037 <font class="preprocessor"></font> +00038 <font class="preprocessor">#include "<a class="code" href="system__info_8h.html">nel/misc/system_info.h</a>"</font> +00039 <font class="preprocessor">#include "<a class="code" href="command_8h.html">nel/misc/command.h</a>"</font> +00040 <font class="preprocessor">#include "<a class="code" href="include_2nel_2misc_2heap__allocator_8h.html">nel/misc/heap_allocator.h</a>"</font> +00041 +00042 <font class="keyword">using</font> <font class="keyword">namespace </font>std; +00043 +00044 <font class="keyword">namespace </font>NLMISC { +00045 +<a name="l00046"></a><a class="code" href="classNLMISC_1_1CSystemInfo.html#d0">00046</a> string CSystemInfo::getOS () +00047 { +00048 string OSString = <font class="stringliteral">"Unknown"</font>; +00049 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00050 <font class="preprocessor"></font> <font class="keywordtype">char</font> ver[1024]; +00051 +00052 OSVERSIONINFOEX osvi; +00053 BOOL bOsVersionInfoEx; +00054 +00055 <font class="comment">// Try calling GetVersionEx using the OSVERSIONINFOEX structure,</font> +00056 <font class="comment">// which is supported on Windows 2000.</font> +00057 <font class="comment">//</font> +00058 <font class="comment">// If that fails, try using the OSVERSIONINFO structure.</font> +00059 +00060 ZeroMemory(&osvi, <font class="keyword">sizeof</font>(OSVERSIONINFOEX)); +00061 osvi.dwOSVersionInfoSize = <font class="keyword">sizeof</font>(OSVERSIONINFOEX); +00062 +00063 <font class="keywordflow">if</font>( !(bOsVersionInfoEx = GetVersionEx ((OSVERSIONINFO *) &osvi)) ) +00064 { +00065 <font class="comment">// If OSVERSIONINFOEX doesn't work, try OSVERSIONINFO.</font> +00066 osvi.dwOSVersionInfoSize = <font class="keyword">sizeof</font> (OSVERSIONINFO); +00067 <font class="keywordflow">if</font> (! GetVersionEx ( (OSVERSIONINFO *) &osvi) ) +00068 <font class="keywordflow">return</font> <font class="stringliteral">"Windows Unknown"</font>; +00069 } +00070 +00071 <font class="keywordflow">switch</font> (osvi.dwPlatformId) +00072 { +00073 <font class="keywordflow">case</font> VER_PLATFORM_WIN32_NT: +00074 <font class="comment">// Test for the product.</font> +00075 +00076 <font class="keywordflow">if</font> ( osvi.dwMajorVersion <= 4 ) +00077 OSString = <font class="stringliteral">"Microsoft Windows NT "</font>; +00078 +00079 <font class="keywordflow">if</font> ( osvi.dwMajorVersion == 5 ) +00080 OSString = <font class="stringliteral">"Microsoft Windows 2000 "</font>; +00081 +00082 <font class="comment">// Test for workstation versus server.</font> +00083 <font class="comment">/* can't access to product type</font> +00084 <font class="comment"> if( bOsVersionInfoEx )</font> +00085 <font class="comment"> {</font> +00086 <font class="comment"> if ( osvi.wProductType == VER_NT_WORKSTATION )</font> +00087 <font class="comment"> OSString += "Professional ";</font> +00088 <font class="comment"></font> +00089 <font class="comment"> if ( osvi.wProductType == VER_NT_SERVER )</font> +00090 <font class="comment"> OSString += "Server ";</font> +00091 <font class="comment"> }</font> +00092 <font class="comment"> else</font> +00093 <font class="comment">*/</font> { +00094 HKEY hKey; +00095 <font class="keywordtype">char</font> szProductType[80]; +00096 DWORD dwBufLen; +00097 +00098 RegOpenKeyEx( HKEY_LOCAL_MACHINE, <font class="stringliteral">"SYSTEM\\CurrentControlSet\\Control\\ProductOptions"</font>, 0, KEY_QUERY_VALUE, &hKey ); +00099 RegQueryValueEx( hKey, <font class="stringliteral">"ProductType"</font>, NULL, NULL, (LPBYTE) szProductType, &dwBufLen); +00100 RegCloseKey( hKey ); +00101 <font class="keywordflow">if</font> ( lstrcmpi( <font class="stringliteral">"WINNT"</font>, szProductType) == 0 ) +00102 OSString += <font class="stringliteral">"Workstation "</font>; +00103 <font class="keywordflow">if</font> ( lstrcmpi( <font class="stringliteral">"SERVERNT"</font>, szProductType) == 0 ) +00104 OSString += <font class="stringliteral">"Server "</font>; +00105 } +00106 +00107 <font class="comment">// Display version, service pack (if any), and build number.</font> +00108 <a class="code" href="namespaceNLMISC.html#a211">smprintf</a>(ver, 1024, <font class="stringliteral">"version %d.%d '%s' (Build %d)"</font>, osvi.dwMajorVersion, osvi.dwMinorVersion, osvi.szCSDVersion, osvi.dwBuildNumber & 0xFFFF); +00109 OSString += ver; +00110 <font class="keywordflow">break</font>; +00111 +00112 <font class="keywordflow">case</font> VER_PLATFORM_WIN32_WINDOWS: +00113 +00114 <font class="keywordflow">if</font>(osvi.dwMinorVersion == 0) +00115 OSString = <font class="stringliteral">"Microsoft Windows 95 "</font>; +00116 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (osvi.dwMinorVersion == 10) +00117 OSString = <font class="stringliteral">"Microsoft Windows 98 "</font>; +00118 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (osvi.dwMinorVersion == 90) +00119 OSString = <font class="stringliteral">"Microsoft Windows Millenium "</font>; +00120 <font class="comment">/* microsoft way</font> +00121 <font class="comment"> if ((osvi.dwMajorVersion > 4) || (osvi.dwMajorVersion == 4) && (osvi.dwMinorVersion > 0)))</font> +00122 <font class="comment"> OSString += "Microsoft Windows 98 ";</font> +00123 <font class="comment"> else</font> +00124 <font class="comment"> OSString += "Microsoft Windows 95 ";</font> +00125 <font class="comment">*/</font> +00126 <font class="comment">// Display version, service pack (if any), and build number.</font> +00127 <a class="code" href="namespaceNLMISC.html#a211">smprintf</a>(ver, 1024, <font class="stringliteral">"version %d.%d %s (Build %d)"</font>, osvi.dwMajorVersion, osvi.dwMinorVersion, osvi.szCSDVersion, osvi.dwBuildNumber & 0xFFFF); +00128 OSString += ver; +00129 <font class="keywordflow">break</font>; +00130 +00131 <font class="keywordflow">case</font> VER_PLATFORM_WIN32s: +00132 OSString = <font class="stringliteral">"Microsoft Win32s"</font>; +00133 <font class="keywordflow">break</font>; +00134 } +00135 +00136 <font class="preprocessor">#elif defined NL_OS_UNIX</font> +00137 <font class="preprocessor"></font> +00138 OSString = <font class="stringliteral">"Unix"</font>; +00139 +00140 <font class="preprocessor">#endif // NL_OS_UNIX</font> +00141 <font class="preprocessor"></font> +00142 <font class="keywordflow">return</font> OSString; +00143 } +00144 +<a name="l00145"></a><a class="code" href="classNLMISC_1_1CSystemInfo.html#d1">00145</a> string CSystemInfo::getProc () +00146 { +00147 string ProcString = <font class="stringliteral">"Unknown"</font>; +00148 +00149 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00150 <font class="preprocessor"></font> +00151 LONG result; +00152 <font class="keywordtype">char</font> <a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>[1024]; +00153 DWORD valueSize; +00154 HKEY hKey; +00155 +00156 result = ::RegOpenKeyEx (HKEY_LOCAL_MACHINE, <font class="stringliteral">"Hardware\\Description\\System\\CentralProcessor\\0"</font>, 0, KEY_QUERY_VALUE, &hKey); +00157 <font class="keywordflow">if</font> (result == ERROR_SUCCESS) +00158 { +00159 <font class="comment">// get processor name</font> +00160 valueSize = 1024; +00161 result = ::RegQueryValueEx (hKey, _T(<font class="stringliteral">"ProcessorNameString"</font>), NULL, NULL, (LPBYTE)&<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>, &valueSize); +00162 <font class="keywordflow">if</font> (result == ERROR_SUCCESS) +00163 ProcString = <a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>; +00164 <font class="keywordflow">else</font> +00165 ProcString = <font class="stringliteral">"UnknownProc"</font>; +00166 +00167 ProcString += <font class="stringliteral">" / "</font>; +00168 +00169 <font class="comment">// get processor identifier</font> +00170 valueSize = 1024; +00171 result = ::RegQueryValueEx (hKey, _T(<font class="stringliteral">"Identifier"</font>), NULL, NULL, (LPBYTE)&<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>, &valueSize); +00172 <font class="keywordflow">if</font> (result == ERROR_SUCCESS) +00173 ProcString += <a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>; +00174 <font class="keywordflow">else</font> +00175 ProcString += <font class="stringliteral">"UnknownIdentifier"</font>; +00176 +00177 ProcString += <font class="stringliteral">" / "</font>; +00178 +00179 <font class="comment">// get processor vendor</font> +00180 valueSize = 1024; +00181 result = ::RegQueryValueEx (hKey, _T(<font class="stringliteral">"VendorIdentifier"</font>), NULL, NULL, (LPBYTE)&<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>, &valueSize); +00182 <font class="keywordflow">if</font> (result == ERROR_SUCCESS) +00183 ProcString += <a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>; +00184 <font class="keywordflow">else</font> +00185 ProcString += <font class="stringliteral">"UnknownVendor"</font>; +00186 +00187 ProcString += <font class="stringliteral">" / "</font>; +00188 +00189 <font class="comment">// get processor frequence</font> +00190 result = ::RegQueryValueEx (hKey, _T(<font class="stringliteral">"~MHz"</font>), NULL, NULL, (LPBYTE)&<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>, &valueSize); +00191 <font class="keywordflow">if</font> (result == ERROR_SUCCESS) +00192 { +00193 ProcString += itoa (*(<font class="keywordtype">int</font> *)<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>, 10); +00194 ProcString += <font class="stringliteral">"MHz"</font>; +00195 } +00196 <font class="keywordflow">else</font> +00197 ProcString += <font class="stringliteral">"UnknownFreq"</font>; +00198 } +00199 +00200 <font class="comment">// Make sure to close the reg key</font> +00201 +00202 RegCloseKey (hKey); +00203 +00204 <font class="preprocessor">#elif defined NL_OS_UNIX</font> +00205 <font class="preprocessor"></font> +00206 +00207 <font class="preprocessor">#endif</font> +00208 <font class="preprocessor"></font> +00209 <font class="keywordflow">return</font> ProcString; +00210 } +00211 +<a name="l00212"></a><a class="code" href="classNLMISC_1_1CSystemInfo.html#d2">00212</a> string CSystemInfo::getMem () +00213 { +00214 string MemString = <font class="stringliteral">"Unknown"</font>; +00215 +00216 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00217 <font class="preprocessor"></font> +00218 MEMORYSTATUS ms; +00219 +00220 GlobalMemoryStatus (&ms); +00221 +00222 sint extt = 0, extf = 0; +00223 <font class="keywordtype">char</font> *ext2str[] = { <font class="stringliteral">"b"</font>, <font class="stringliteral">"Kb"</font>, <font class="stringliteral">"Mb"</font>, <font class="stringliteral">"Gb"</font>, <font class="stringliteral">"Tb"</font> }; +00224 +00225 <font class="keywordflow">while</font> (ms.dwTotalPhys > 1024) +00226 { +00227 ms.dwTotalPhys /= 1024; +00228 extt++; +00229 } +00230 +00231 <font class="keywordflow">while</font> (ms.dwAvailPhys > 1024) +00232 { +00233 ms.dwAvailPhys /= 1024; +00234 extf++; +00235 } +00236 +00237 <font class="keywordtype">char</font> mem[1024]; +00238 <a class="code" href="namespaceNLMISC.html#a211">smprintf</a> (mem, 1024, <font class="stringliteral">"physical memory: total: %d %s free: %d %s"</font>, ms.dwTotalPhys+1, ext2str[extt], ms.dwAvailPhys+1, ext2str[extf]); +00239 MemString = mem; +00240 +00241 <font class="preprocessor">#elif defined NL_OS_UNIX</font> +00242 <font class="preprocessor"></font> +00243 +00244 <font class="preprocessor">#endif</font> +00245 <font class="preprocessor"></font> +00246 <font class="keywordflow">return</font> MemString; +00247 } +00248 +00249 +00250 <font class="keyword">static</font> <font class="keywordtype">bool</font> <a class="code" href="namespaceNLMISC.html#a291">DetectMMX</a>() +00251 { +00252 <font class="preprocessor"> #ifdef NL_OS_WINDOWS </font> +00253 <font class="preprocessor"></font> <font class="keywordflow">if</font> (!CSystemInfo::hasCPUID()) <font class="keywordflow">return</font> <font class="keyword">false</font>; <font class="comment">// cpuid not supported ...</font> +00254 +00255 uint32 result = 0; +00256 __asm +00257 { +00258 mov eax,1 +00259 cpuid +00260 test edx,0x800000 <font class="comment">// bit 23 = MMX instruction set</font> +00261 je noMMX +00262 mov result, 1 +00263 noMMX: +00264 } +00265 +00266 <font class="keywordflow">return</font> result == 1; +00267 +00268 <font class="comment">// printf("mmx detected\n");</font> +00269 +00270 <font class="preprocessor"> #else</font> +00271 <font class="preprocessor"></font> <font class="keywordflow">return</font> <font class="keyword">false</font>; +00272 <font class="preprocessor"> #endif</font> +00273 <font class="preprocessor"></font>} +00274 +00275 +00276 <font class="keyword">static</font> <font class="keywordtype">bool</font> <a class="code" href="namespaceNLMISC.html#a292">DetectSSE</a>() +00277 { +00278 <font class="preprocessor"> #ifdef NL_OS_WINDOWS</font> +00279 <font class="preprocessor"></font> <font class="keywordflow">if</font> (!CSystemInfo::hasCPUID()) <font class="keywordflow">return</font> <font class="keyword">false</font>; <font class="comment">// cpuid not supported ...</font> +00280 +00281 uint32 result = 0; +00282 __asm +00283 { +00284 mov eax, 1 <font class="comment">// request for feature flags</font> +00285 cpuid +00286 test EDX, 002000000h <font class="comment">// bit 25 in feature flags equal to 1</font> +00287 je noSSE +00288 mov result, 1 <font class="comment">// sse detected</font> +00289 noSSE: +00290 } +00291 +00292 +00293 <font class="keywordflow">if</font> (result) +00294 { +00295 <font class="comment">// check OS support for SSE</font> +00296 <font class="keywordflow">try</font> +00297 { +00298 __asm +00299 { +00300 xorps xmm0, xmm0 <font class="comment">// Streaming SIMD Extension</font> +00301 } +00302 } +00303 <font class="keywordflow">catch</font>(...) +00304 { +00305 <font class="keywordflow">return</font> <font class="keyword">false</font>; +00306 } +00307 +00308 <font class="comment">// printf("sse detected\n");</font> +00309 +00310 <font class="keywordflow">return</font> <font class="keyword">true</font>; +00311 } +00312 <font class="keywordflow">else</font> +00313 { +00314 <font class="keywordflow">return</font> <font class="keyword">false</font>; +00315 } +00316 <font class="preprocessor"> #else</font> +00317 <font class="preprocessor"></font> <font class="keywordflow">return</font> <font class="keyword">false</font>; +00318 <font class="preprocessor"> #endif</font> +00319 <font class="preprocessor"></font>} +00320 +00321 <font class="keyword">static</font> <font class="keywordtype">bool</font> <a class="code" href="namespaceNLMISC.html#a203">HaveMMX</a> = <a class="code" href="namespaceNLMISC.html#a291">DetectMMX</a> (); +00322 <font class="keyword">static</font> <font class="keywordtype">bool</font> <a class="code" href="namespaceNLMISC.html#a204">HaveSSE</a> = <a class="code" href="namespaceNLMISC.html#a292">DetectSSE</a> (); +00323 +<a name="l00324"></a><a class="code" href="classNLMISC_1_1CSystemInfo.html#d3">00324</a> <font class="keywordtype">bool</font> CSystemInfo::hasCPUID () +00325 { +00326 <font class="preprocessor"> #ifdef NL_OS_WINDOWS</font> +00327 <font class="preprocessor"></font> uint32 result; +00328 __asm +00329 { +00330 pushad +00331 pushfd +00332 <font class="comment">// If ID bit of EFLAGS can change, then cpuid is available</font> +00333 pushfd +00334 pop eax <font class="comment">// Get EFLAG</font> +00335 mov ecx,eax +00336 xor eax,0x200000 <font class="comment">// Flip ID bit</font> +00337 push eax +00338 popfd <font class="comment">// Write EFLAGS</font> +00339 pushfd +00340 pop eax <font class="comment">// read back EFLAG</font> +00341 xor eax,ecx +00342 je noCpuid <font class="comment">// no flip -> no CPUID instr.</font> +00343 +00344 popfd <font class="comment">// restore state</font> +00345 popad +00346 mov result, 1 +00347 jmp CPUIDPresent +00348 +00349 noCpuid: +00350 popfd <font class="comment">// restore state</font> +00351 popad +00352 mov result, 0 +00353 CPUIDPresent: +00354 } +00355 <font class="keywordflow">return</font> result == 1; +00356 <font class="preprocessor"> #else</font> +00357 <font class="preprocessor"></font> <font class="keywordflow">return</font> <font class="keyword">false</font>; +00358 <font class="preprocessor"> #endif</font> +00359 <font class="preprocessor"></font>} +<a name="l00360"></a><a class="code" href="classNLMISC_1_1CSystemInfo.html#d4">00360</a> <font class="keywordtype">bool</font> CSystemInfo::hasMMX () { <font class="keywordflow">return</font> <a class="code" href="namespaceNLMISC.html#a203">HaveMMX</a>; } +<a name="l00361"></a><a class="code" href="classNLMISC_1_1CSystemInfo.html#d5">00361</a> <font class="keywordtype">bool</font> CSystemInfo::hasSSE () { <font class="keywordflow">return</font> <a class="code" href="namespaceNLMISC.html#a204">HaveSSE</a>; } +00362 +00363 +<a name="l00364"></a><a class="code" href="classNLMISC_1_1CSystemInfo.html#d6">00364</a> <font class="keywordtype">bool</font> CSystemInfo::isNT() +00365 { +00366 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00367 <font class="preprocessor"></font> OSVERSIONINFO ver; +00368 ver.dwOSVersionInfoSize = <font class="keyword">sizeof</font>(OSVERSIONINFO); +00369 GetVersionEx(&ver); +00370 <font class="keywordflow">return</font> ver.dwPlatformId == VER_PLATFORM_WIN32_NT; +00371 <font class="preprocessor">#else</font> +00372 <font class="preprocessor"></font> <font class="keywordflow">return</font> <font class="keyword">false</font>; +00373 <font class="preprocessor">#endif</font> +00374 <font class="preprocessor"></font>} +00375 +00376 +00377 <font class="preprocessor">#ifdef NL_OS_UNIX</font> +00378 <font class="preprocessor"></font> +00379 <font class="keyword">static</font> <font class="keyword">inline</font> <font class="keywordtype">char</font> *<a class="code" href="namespaceNLMISC.html#a298">skipWS</a>(<font class="keyword">const</font> <font class="keywordtype">char</font> *p) +00380 { +00381 <font class="keywordflow">while</font> (isspace(*p)) p++; +00382 <font class="keywordflow">return</font> (<font class="keywordtype">char</font> *)p; +00383 } +00384 +00385 <font class="keyword">static</font> <font class="keyword">inline</font> <font class="keywordtype">char</font> *<a class="code" href="namespaceNLMISC.html#a299">skipToken</a>(<font class="keyword">const</font> <font class="keywordtype">char</font> *p) +00386 { +00387 <font class="keywordflow">while</font> (isspace(*p)) p++; +00388 <font class="keywordflow">while</font> (*p && !isspace(*p)) p++; +00389 <font class="keywordflow">return</font> (<font class="keywordtype">char</font> *)p; +00390 } +00391 +00392 <font class="comment">// col: 0=total used free shared buffers cached</font> +00393 uint32 getSystemMemory (uint col) +00394 { +00395 <font class="keywordflow">if</font> (col > 5) +00396 <font class="keywordflow">return</font> 0; +00397 +00398 <font class="keywordtype">char</font> buffer[4096+1]; +00399 <font class="keywordtype">int</font> fd, len; +00400 <font class="keywordtype">char</font> *p; +00401 +00402 <font class="comment">/* get system wide memory usage */</font> +00403 { +00404 <font class="keywordtype">char</font> *p; +00405 +00406 fd = open(<font class="stringliteral">"/proc/meminfo"</font>, O_RDONLY); +00407 len = read(fd, buffer, <font class="keyword">sizeof</font>(buffer)-1); +00408 close(fd); +00409 buffer[len] = <font class="charliteral">'\0'</font>; +00410 +00411 <font class="comment">/* be prepared for extra columns to appear be seeking</font> +00412 <font class="comment"> to ends of lines */</font> +00413 p = strchr(buffer, <font class="charliteral">'\n'</font>); +00414 p = <a class="code" href="namespaceNLMISC.html#a299">skipToken</a>(p); <font class="comment">/* "Mem:" */</font> +00415 <font class="keywordflow">for</font> (uint i = 0; i < col; i++) +00416 { +00417 p = <a class="code" href="namespaceNLMISC.html#a299">skipToken</a>(p); +00418 } +00419 <font class="keywordflow">return</font> strtoul(p, &p, 10); +00420 } +00421 } +00422 +00423 <font class="preprocessor">#endif // NL_OS_UNIX</font> +00424 <font class="preprocessor"></font> +00425 +00426 +00427 +<a name="l00428"></a><a class="code" href="classNLMISC_1_1CSystemInfo.html#d7">00428</a> uint32 CSystemInfo::availablePhysicalMemory () +00429 { +00430 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00431 <font class="preprocessor"></font> +00432 MEMORYSTATUS ms; +00433 GlobalMemoryStatus (&ms); +00434 <font class="keywordflow">return</font> ms.dwAvailPhys; +00435 +00436 <font class="preprocessor">#elif defined NL_OS_UNIX</font> +00437 <font class="preprocessor"></font> +00438 <font class="keywordflow">return</font> getSystemMemory (2); +00439 +00440 <font class="preprocessor">#endif</font> +00441 <font class="preprocessor"></font> +00442 <font class="keywordflow">return</font> 0; +00443 } +00444 +<a name="l00445"></a><a class="code" href="classNLMISC_1_1CSystemInfo.html#d8">00445</a> uint32 CSystemInfo::totalPhysicalMemory () +00446 { +00447 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00448 <font class="preprocessor"></font> +00449 MEMORYSTATUS ms; +00450 GlobalMemoryStatus (&ms); +00451 <font class="keywordflow">return</font> ms.dwTotalPhys; +00452 +00453 <font class="preprocessor">#elif defined NL_OS_UNIX</font> +00454 <font class="preprocessor"></font> +00455 <font class="keywordflow">return</font> getSystemMemory (0); +00456 +00457 <font class="preprocessor">#endif</font> +00458 <font class="preprocessor"></font> +00459 <font class="keywordflow">return</font> 0; +00460 } +00461 +00462 +00463 <a class="code" href="namespaceNLMISC.html#a314">NLMISC_DYNVARIABLE</a>(uint32, AvailablePhysicalMemory, <font class="stringliteral">"Physical memory available on this computer in bytes"</font>) +00464 { +00465 <font class="keywordflow">if</font> (get) *<a class="code" href="driver__opengl__extension__def_8h.html#a362">pointer</a> = CSystemInfo::availablePhysicalMemory (); +00466 } +00467 +00468 <a class="code" href="namespaceNLMISC.html#a314">NLMISC_DYNVARIABLE</a>(uint32, TotalPhysicalMemory, <font class="stringliteral">"Total physical memory on this computer in bytes"</font>) +00469 { +00470 <font class="keywordflow">if</font> (get) *<a class="code" href="driver__opengl__extension__def_8h.html#a362">pointer</a> = CSystemInfo::totalPhysicalMemory (); +00471 } +00472 +00473 <a class="code" href="namespaceNLMISC.html#a314">NLMISC_DYNVARIABLE</a>(uint32, ProcessUsedMemory, <font class="stringliteral">"Memory used by this process in bytes"</font>) +00474 { +00475 <font class="keywordflow">if</font> (get) *<a class="code" href="driver__opengl__extension__def_8h.html#a362">pointer</a> = CHeapAllocator::getAllocatedSystemMemory (); +00476 } +00477 +00478 +00479 } <font class="comment">// NLMISC</font> +</pre></div> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |