summaryrefslogtreecommitdiff
path: root/indra/llcommon/llsys.cpp
blob: 98393dacd10ffd1f684b43961a569eb80ee1d041 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
/** 
 * @file llsys.cpp
 * @brief Impelementation of the basic system query functions.
 *
 * $LicenseInfo:firstyear=2002&license=viewergpl$
 * 
 * Copyright (c) 2002-2007, Linden Research, Inc.
 * 
 * Second Life Viewer Source Code
 * The source code in this file ("Source Code") is provided by Linden Lab
 * to you under the terms of the GNU General Public License, version 2.0
 * ("GPL"), unless you have obtained a separate licensing agreement
 * ("Other License"), formally executed by you and Linden Lab.  Terms of
 * the GPL can be found in doc/GPL-license.txt in this distribution, or
 * online at http://secondlife.com/developers/opensource/gplv2
 * 
 * There are special exceptions to the terms and conditions of the GPL as
 * it is applied to this Source Code. View the full text of the exception
 * in the file doc/FLOSS-exception.txt in this software distribution, or
 * online at http://secondlife.com/developers/opensource/flossexception
 * 
 * By copying, modifying or distributing this software, you acknowledge
 * that you have read and understood your obligations described above,
 * and agree to abide by those obligations.
 * 
 * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
 * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
 * COMPLETENESS OR PERFORMANCE.
 * $/LicenseInfo$
 */

#include "linden_common.h"

#include "llsys.h"

#include <iostream>
#ifdef LL_STANDALONE
# include <zlib.h>
#else
# include "zlib/zlib.h"
#endif

#include "llprocessor.h"

#if LL_WINDOWS
#	define WIN32_LEAN_AND_MEAN
#	include <winsock2.h>
#	include <windows.h>
#elif LL_DARWIN
#	include <errno.h>
#	include <sys/sysctl.h>
#	include <sys/utsname.h>
#	include <stdint.h>
#elif LL_LINUX
#	include <errno.h>
#	include <sys/utsname.h>
#	include <unistd.h>
#	include <sys/sysinfo.h>
const char MEMINFO_FILE[] = "/proc/meminfo";
const char CPUINFO_FILE[] = "/proc/cpuinfo";
#endif


static const S32 CPUINFO_BUFFER_SIZE = 16383;
LLCPUInfo gSysCPU;

LLOSInfo::LLOSInfo() :
	mMajorVer(0), mMinorVer(0), mBuild(0)
{

#if LL_WINDOWS
	OSVERSIONINFOEX osvi;
	BOOL bOsVersionInfoEx;

	// Try calling GetVersionEx using the OSVERSIONINFOEX structure.
	ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));
	osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
	if(!(bOsVersionInfoEx = GetVersionEx((OSVERSIONINFO *) &osvi)))
	{
		// If OSVERSIONINFOEX doesn't work, try OSVERSIONINFO.
		osvi.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
		if(!GetVersionEx( (OSVERSIONINFO *) &osvi))
			return;
	}
	mMajorVer = osvi.dwMajorVersion;
	mMinorVer = osvi.dwMinorVersion;
	mBuild = osvi.dwBuildNumber;

	switch(osvi.dwPlatformId)
	{
	case VER_PLATFORM_WIN32_NT:
		{
			// Test for the product.
			if(osvi.dwMajorVersion <= 4)
			{
				mOSStringSimple = "Microsoft Windows NT ";
			}
			else if(osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0)
			{
				mOSStringSimple = "Microsoft Windows 2000 ";
			}
			else if(osvi.dwMajorVersion ==5 && osvi.dwMinorVersion == 1)
			{
				mOSStringSimple = "Microsoft Windows XP ";
			}
			else if(osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 2)
			{
				 if(osvi.wProductType == VER_NT_WORKSTATION)
					mOSStringSimple = "Microsoft Windows XP x64 Edition ";
				 else
					 mOSStringSimple = "Microsoft Windows Server 2003 ";
			}
			else if(osvi.dwMajorVersion == 6 && osvi.dwMinorVersion == 0)
			{
				 if(osvi.wProductType == VER_NT_WORKSTATION)
					mOSStringSimple = "Microsoft Windows Vista ";
				 else mOSStringSimple = "Microsoft Windows Vista Server ";
			}
			else   // Use the registry on early versions of Windows NT.
			{
				HKEY hKey;
				WCHAR szProductType[80];
				DWORD dwBufLen;
				RegOpenKeyEx( HKEY_LOCAL_MACHINE,
							L"SYSTEM\\CurrentControlSet\\Control\\ProductOptions",
							0, KEY_QUERY_VALUE, &hKey );
				RegQueryValueEx( hKey, L"ProductType", NULL, NULL,
								(LPBYTE) szProductType, &dwBufLen);
				RegCloseKey( hKey );
				if ( lstrcmpi( L"WINNT", szProductType) == 0 )
				{
					mOSStringSimple += "Professional ";
				}
				else if ( lstrcmpi( L"LANMANNT", szProductType) == 0 )
				{
					mOSStringSimple += "Server ";
				}
				else if ( lstrcmpi( L"SERVERNT", szProductType) == 0 )
				{
					mOSStringSimple += "Advanced Server ";
				}
			}

			std::string csdversion = utf16str_to_utf8str(osvi.szCSDVersion);
			// Display version, service pack (if any), and build number.
			char tmp[MAX_STRING];		/* Flawfinder: ignore */
			if(osvi.dwMajorVersion <= 4)
			{
				snprintf(	/* Flawfinder: ignore */
					tmp,
					sizeof(tmp),
					"version %d.%d %s (Build %d)",
					osvi.dwMajorVersion,
					osvi.dwMinorVersion,
					csdversion.c_str(),
					(osvi.dwBuildNumber & 0xffff));
			}
			else
			{
				snprintf(	/* Flawfinder: ignore */
					tmp,
					sizeof(tmp),
					"%s (Build %d)",
					csdversion.c_str(),
					(osvi.dwBuildNumber & 0xffff));	 
			}
			mOSString = mOSStringSimple + tmp;
		}
		break;

	case VER_PLATFORM_WIN32_WINDOWS:
		// Test for the Windows 95 product family.
		if(osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 0)
		{
			mOSStringSimple = "Microsoft Windows 95 ";
			if ( osvi.szCSDVersion[1] == 'C' || osvi.szCSDVersion[1] == 'B' )
			{
                mOSStringSimple += "OSR2 ";
			}
		} 
		if(osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 10)
		{
			mOSStringSimple = "Microsoft Windows 98 ";
			if ( osvi.szCSDVersion[1] == 'A' )
			{
                mOSStringSimple += "SE ";
			}
		} 
		if(osvi.dwMajorVersion == 4 && osvi.dwMinorVersion == 90)
		{
			mOSStringSimple = "Microsoft Windows Millennium Edition ";
		}
		mOSString = mOSStringSimple;
		break;
	}
#else
	struct utsname un;
	if(uname(&un) != -1)
	{
		mOSStringSimple.append(un.sysname);
		mOSStringSimple.append(" ");
		mOSStringSimple.append(un.release);

		mOSString = mOSStringSimple;
		mOSString.append(" ");
		mOSString.append(un.version);
		mOSString.append(" ");
		mOSString.append(un.machine);

		// Simplify 'Simple'
		std::string ostype = mOSStringSimple.substr(0, mOSStringSimple.find_first_of(" ", 0));
		if (ostype == "Darwin")
		{
			// Only care about major Darwin versions, truncate at first '.'
			S32 idx1 = mOSStringSimple.find_first_of(".", 0);
			std::string simple = mOSStringSimple.substr(0, idx1);
			if (simple.length() > 0)
				mOSStringSimple = simple;
		}
		else if (ostype == "Linux")
		{
			// Only care about major and minor Linux versions, truncate at second '.'
			S32 idx1 = mOSStringSimple.find_first_of(".", 0);
			S32 idx2 = (idx1 != std::string::npos) ? mOSStringSimple.find_first_of(".", idx1+1) : std::string::npos;
			std::string simple = mOSStringSimple.substr(0, idx2);
			if (simple.length() > 0)
				mOSStringSimple = simple;
		}
	}
	else
	{
		mOSStringSimple.append("Unable to collect OS info");
		mOSString = mOSStringSimple;
	}
#endif

}

#ifndef LL_WINDOWS
// static
S32 LLOSInfo::getMaxOpenFiles()
{
	const S32 OPEN_MAX_GUESS = 256;

#ifdef	OPEN_MAX
	static S32 open_max = OPEN_MAX;
#else
	static S32 open_max = 0;
#endif

	if (0 == open_max)
	{
		// First time through.
		errno = 0;
		if ( (open_max = sysconf(_SC_OPEN_MAX)) < 0)
		{
			if (0 == errno)
			{
				// Indeterminate.
				open_max = OPEN_MAX_GUESS;
			}
			else
			{
				llerrs << "LLOSInfo::getMaxOpenFiles: sysconf error for _SC_OPEN_MAX" << llendl;
			}
		}
	}
	return open_max;
}
#endif

void LLOSInfo::stream(std::ostream& s) const
{
	s << mOSString;
}

const std::string& LLOSInfo::getOSString() const
{
	return mOSString;
}

const std::string& LLOSInfo::getOSStringSimple() const
{
	return mOSStringSimple;
}

const S32 STATUS_SIZE = 8192;

//static
U32 LLOSInfo::getProcessVirtualSizeKB()
{
	U32 virtual_size = 0;
#if LL_WINDOWS
#endif
#if LL_LINUX
	FILE* status_filep = LLFile::fopen("/proc/self/status", "rb");
	S32 numRead = 0;		
	char buff[STATUS_SIZE];		/* Flawfinder: ignore */

	size_t nbytes = fread(buff, 1, STATUS_SIZE-1, status_filep);
	buff[nbytes] = '\0';

	// All these guys return numbers in KB
	char *memp = strstr(buff, "VmSize:");
	if (memp)
	{
		numRead += sscanf(memp, "%*s %u", &virtual_size);
	}
	fclose(status_filep);
#elif LL_SOLARIS
	char proc_ps[LL_MAX_PATH];
	sprintf(proc_ps, "/proc/%d/psinfo", (int)getpid());
	int proc_fd = -1;
	if((proc_fd = open(proc_ps, O_RDONLY)) == -1){
		llwarns << "unable to open " << proc_ps << llendl;
		return 0;
	}
	psinfo_t proc_psinfo;
	if(read(proc_fd, &proc_psinfo, sizeof(psinfo_t)) != sizeof(psinfo_t)){
		llwarns << "Unable to read " << proc_ps << llendl;
		close(proc_fd);
		return 0;
	}

	close(proc_fd);

	virtual_size = proc_psinfo.pr_size;
#endif
	return virtual_size;
}

//static
U32 LLOSInfo::getProcessResidentSizeKB()
{
	U32 resident_size = 0;
#if LL_WINDOWS
#endif
#if LL_LINUX
	FILE* status_filep = LLFile::fopen("/proc/self/status", "rb");
	if (status_filep != NULL)
	{
		S32 numRead = 0;
		char buff[STATUS_SIZE];		/* Flawfinder: ignore */

		size_t nbytes = fread(buff, 1, STATUS_SIZE-1, status_filep);
		buff[nbytes] = '\0';

		// All these guys return numbers in KB
		char *memp = strstr(buff, "VmRSS:");
		if (memp)
		{
			numRead += sscanf(memp, "%*s %u", &resident_size);
		}
		fclose(status_filep);
	}
#elif LL_SOLARIS
	char proc_ps[LL_MAX_PATH];
	sprintf(proc_ps, "/proc/%d/psinfo", (int)getpid());
	int proc_fd = -1;
	if((proc_fd = open(proc_ps, O_RDONLY)) == -1){
		llwarns << "unable to open " << proc_ps << llendl;
		return 0;
	}
	psinfo_t proc_psinfo;
	if(read(proc_fd, &proc_psinfo, sizeof(psinfo_t)) != sizeof(psinfo_t)){
		llwarns << "Unable to read " << proc_ps << llendl;
		close(proc_fd);
		return 0;
	}

	close(proc_fd);

	resident_size = proc_psinfo.pr_rssize;
#endif
	return resident_size;
}

LLCPUInfo::LLCPUInfo()
{
	std::ostringstream out;
	CProcessor proc;
	const ProcessorInfo* info = proc.GetCPUInfo();
	// proc.WriteInfoTextFile("procInfo.txt");
	mHasSSE = info->_Ext.SSE_StreamingSIMD_Extensions;
	mHasSSE2 = info->_Ext.SSE2_StreamingSIMD2_Extensions;
	mHasAltivec = info->_Ext.Altivec_Extensions;
	mCPUMhz = (S32)(proc.GetCPUFrequency(50)/1000000.0);
	mFamily.assign( info->strFamily );
	mCPUString = "Unknown";

#if LL_WINDOWS || LL_DARWIN || LL_SOLARIS
	out << proc.strCPUName;
	if (200 < mCPUMhz && mCPUMhz < 10000)           // *NOTE: cpu speed is often way wrong, do a sanity check
	{
		out << " (" << mCPUMhz << " MHz)";
	}
	mCPUString = out.str();
	
#elif LL_LINUX
	std::map< LLString, LLString > cpuinfo;
	FILE* cpuinfo_fp = LLFile::fopen(CPUINFO_FILE, "rb");
	if(cpuinfo_fp)
	{
		char line[MAX_STRING];
		memset(line, 0, MAX_STRING);
		while(fgets(line, MAX_STRING, cpuinfo_fp))
		{
			// /proc/cpuinfo on Linux looks like:
			// name\t*: value\n
			char* tabspot = strchr( line, '\t' );
			if (tabspot == NULL)
				continue;
			char* colspot = strchr( tabspot, ':' );
			if (colspot == NULL)
				continue;
			char* spacespot = strchr( colspot, ' ' );
			if (spacespot == NULL)
				continue;
			char* nlspot = strchr( line, '\n' );
			if (nlspot == NULL)
				nlspot = line + strlen( line ); // Fallback to terminating NUL
			std::string linename( line, tabspot );
			LLString llinename(linename);
			LLString::toLower(llinename);
			std::string lineval( spacespot + 1, nlspot );
			cpuinfo[ llinename ] = lineval;
		}
		fclose(cpuinfo_fp);
	}
# if LL_X86
	LLString flags = " " + cpuinfo["flags"] + " ";
	LLString::toLower(flags);
	mHasSSE = ( flags.find( " sse " ) != std::string::npos );
	mHasSSE2 = ( flags.find( " sse2 " ) != std::string::npos );
	
	F64 mhz;
	if (LLString::convertToF64(cpuinfo["cpu mhz"], mhz)
	    && 200.0 < mhz && mhz < 10000.0)
	{
		mCPUMhz = (S32)llrint(mhz);
	}
	if (!cpuinfo["model name"].empty())
		mCPUString = cpuinfo["model name"];
# endif // LL_X86
#endif // LL_LINUX
}

bool LLCPUInfo::hasAltivec() const
{
	return mHasAltivec;
}

bool LLCPUInfo::hasSSE() const
{
	return mHasSSE;
}

bool LLCPUInfo::hasSSE2() const
{
	return mHasSSE2;
}

S32 LLCPUInfo::getMhz() const
{
	return mCPUMhz;
}

std::string LLCPUInfo::getCPUString() const
{
	return mCPUString;
}

void LLCPUInfo::stream(std::ostream& s) const
{
#if LL_WINDOWS || LL_DARWIN || LL_SOLARIS
	// gather machine information.
	char proc_buf[CPUINFO_BUFFER_SIZE];		/* Flawfinder: ignore */
	CProcessor proc;
	if(proc.CPUInfoToText(proc_buf, CPUINFO_BUFFER_SIZE))
	{
		s << proc_buf;
	}
	else
	{
		s << "Unable to collect processor information" << std::endl;
	}
#else
	// *NOTE: This works on linux. What will it do on other systems?
	FILE* cpuinfo = LLFile::fopen(CPUINFO_FILE, "rb");
	if(cpuinfo)
	{
		char line[MAX_STRING];
		memset(line, 0, MAX_STRING);
		while(fgets(line, MAX_STRING, cpuinfo))
		{
			line[strlen(line)-1] = ' ';
			s << line;
		}
		fclose(cpuinfo);
		s << std::endl;
	}
	else
	{
		s << "Unable to collect processor information" << std::endl;
	}
#endif
	// These are interesting as they reflect our internal view of the
	// CPU's attributes regardless of platform
	s << "->mHasSSE:     " << (U32)mHasSSE << std::endl;
	s << "->mHasSSE2:    " << (U32)mHasSSE2 << std::endl;
	s << "->mHasAltivec: " << (U32)mHasAltivec << std::endl;
	s << "->mCPUMhz:     " << mCPUMhz << std::endl;
	s << "->mCPUString:  " << mCPUString << std::endl;
}

LLMemoryInfo::LLMemoryInfo()
{
}

#if LL_WINDOWS
static U32 LLMemoryAdjustKBResult(U32 inKB)
{
	// Moved this here from llfloaterabout.cpp

	//! \bug
	// For some reason, the reported amount of memory is always wrong.
	// The original adjustment assumes it's always off by one meg, however
	// errors of as much as 2520 KB have been observed in the value
	// returned from the GetMemoryStatusEx function.  Here we keep the
	// original adjustment from llfoaterabout.cpp until this can be
	// fixed somehow.
	inKB += 1024;

	return inKB;
}
#endif

U32 LLMemoryInfo::getPhysicalMemoryKB() const
{
#if LL_WINDOWS
	MEMORYSTATUSEX state;
	state.dwLength = sizeof(state);
	GlobalMemoryStatusEx(&state);

	return LLMemoryAdjustKBResult((U32)(state.ullTotalPhys >> 10));

#elif LL_DARWIN
	// This might work on Linux as well.  Someone check...
	uint64_t phys = 0;
	int mib[2] = { CTL_HW, HW_MEMSIZE };

	size_t len = sizeof(phys);	
	sysctl(mib, 2, &phys, &len, NULL, 0);
	
	return (U32)(phys >> 10);

#elif LL_LINUX
	U64 phys = 0;
	phys = (U64)(getpagesize()) * (U64)(get_phys_pages());
	return (U32)(phys >> 10);

#elif LL_SOLARIS
	U64 phys = 0;
	phys = (U64)(getpagesize()) * (U64)(sysconf(_SC_PHYS_PAGES));
	return (U32)(phys >> 10);

#else
	return 0;

#endif
}

U32 LLMemoryInfo::getPhysicalMemoryClamped() const
{
	// Return the total physical memory in bytes, but clamp it
	// to no more than U32_MAX
	
	U32 phys_kb = getPhysicalMemoryKB();
	if (phys_kb >= 4194304 /* 4GB in KB */)
	{
		return U32_MAX;
	}
	else
	{
		return phys_kb << 10;
	}
}

void LLMemoryInfo::stream(std::ostream& s) const
{
#if LL_WINDOWS
	MEMORYSTATUSEX state;
	state.dwLength = sizeof(state);
	GlobalMemoryStatusEx(&state);

	s << "Percent Memory use: " << (U32)state.dwMemoryLoad << '%' << std::endl;
	s << "Total Physical KB:  " << (U32)(state.ullTotalPhys/1024) << std::endl;
	s << "Avail Physical KB:  " << (U32)(state.ullAvailPhys/1024) << std::endl;
	s << "Total page KB:      " << (U32)(state.ullTotalPageFile/1024) << std::endl;
	s << "Avail page KB:      " << (U32)(state.ullAvailPageFile/1024) << std::endl;
	s << "Total Virtual KB:   " << (U32)(state.ullTotalVirtual/1024) << std::endl;
	s << "Avail Virtual KB:   " << (U32)(state.ullAvailVirtual/1024) << std::endl;
#elif LL_DARWIN
	uint64_t phys = 0;

	size_t len = sizeof(phys);	
	
	if(sysctlbyname("hw.memsize", &phys, &len, NULL, 0) == 0)
	{
		s << "Total Physical KB:  " << phys/1024 << std::endl;
	}
	else
	{
		s << "Unable to collect memory information";
	}
#elif LL_SOLARIS
        U64 phys = 0;

        phys = (U64)(sysconf(_SC_PHYS_PAGES)) * (U64)(sysconf(_SC_PAGESIZE)/1024);

        s << "Total Physical KB:  " << phys << std::endl;
#else
	// *NOTE: This works on linux. What will it do on other systems?
	FILE* meminfo = LLFile::fopen(MEMINFO_FILE,"rb");
	if(meminfo)
	{
		char line[MAX_STRING];		/* Flawfinder: ignore */
		memset(line, 0, MAX_STRING);
		while(fgets(line, MAX_STRING, meminfo))
		{
			line[strlen(line)-1] = ' ';		 /*Flawfinder: ignore*/
			s << line;
		}
		fclose(meminfo);
	}
	else
	{
		s << "Unable to collect memory information";
	}
#endif
}

std::ostream& operator<<(std::ostream& s, const LLOSInfo& info)
{
	info.stream(s);
	return s;
}

std::ostream& operator<<(std::ostream& s, const LLCPUInfo& info)
{
	info.stream(s);
	return s;
}

std::ostream& operator<<(std::ostream& s, const LLMemoryInfo& info)
{
	info.stream(s);
	return s;
}

BOOL gunzip_file(const char *srcfile, const char *dstfile)
{
	char tmpfile[LL_MAX_PATH];		/* Flawfinder: ignore */
	const S32 UNCOMPRESS_BUFFER_SIZE = 32768;
	BOOL retval = FALSE;
	gzFile src = NULL;
	U8 buffer[UNCOMPRESS_BUFFER_SIZE];
	FILE *dst = NULL;
	S32 bytes = 0;
	(void *) strcpy(tmpfile, dstfile);		/* Flawfinder: ignore */
	(void *) strncat(tmpfile, ".t", sizeof(tmpfile) - strlen(tmpfile) -1);		/* Flawfinder: ignore */
	src = gzopen(srcfile, "rb");
	if (! src) goto err;
	dst = LLFile::fopen(tmpfile, "wb");		/* Flawfinder: ignore */
	if (! dst) goto err;
	do
	{
		bytes = gzread(src, buffer, UNCOMPRESS_BUFFER_SIZE);
		size_t nwrit = fwrite(buffer, sizeof(U8), bytes, dst);
		if (nwrit < (size_t) bytes)
		{
			llwarns << "Short write on " << tmpfile << ": Wrote " << nwrit << " of " << bytes << " bytes." << llendl;
			goto err;
		}
	} while(gzeof(src) == 0);
	fclose(dst); 
	dst = NULL;	
	if (LLFile::rename(tmpfile, dstfile) == -1) goto err;		/* Flawfinder: ignore */
	retval = TRUE;
err:
	if (src != NULL) gzclose(src);
	if (dst != NULL) fclose(dst);
	return retval;
}

BOOL gzip_file(const char *srcfile, const char *dstfile)
{
	const S32 COMPRESS_BUFFER_SIZE = 32768;
	char tmpfile[LL_MAX_PATH];		/* Flawfinder: ignore */
	BOOL retval = FALSE;
	U8 buffer[COMPRESS_BUFFER_SIZE];
	gzFile dst = NULL;
	FILE *src = NULL;
	S32 bytes = 0;
	(void *) strcpy(tmpfile, dstfile);		/* Flawfinder: ignore */
	(void *) strncat(tmpfile, ".t", sizeof(tmpfile) - strlen(tmpfile) -1);		/* Flawfinder: ignore */
	dst = gzopen(tmpfile, "wb");		/* Flawfinder: ignore */
	if (! dst) goto err;
	src = LLFile::fopen(srcfile, "rb");		/* Flawfinder: ignore */
	if (! src) goto err;

	do
	{
		bytes = (S32)fread(buffer, sizeof(U8), COMPRESS_BUFFER_SIZE,src);
		gzwrite(dst, buffer, bytes);
	} while(feof(src) == 0);
	gzclose(dst);
	dst = NULL;
#if LL_WINDOWS
	// Rename in windows needs the dstfile to not exist.
	LLFile::remove(dstfile);
#endif
	if (LLFile::rename(tmpfile, dstfile) == -1) goto err;		/* Flawfinder: ignore */
	retval = TRUE;
 err:
	if (src != NULL) fclose(src);
	if (dst != NULL) gzclose(dst);
	return retval;
}