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AIFilePicker related bug fixes.

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Bug fix in LLPreviewAnim::gotAssetForSave_continued: the if()
that tests if the result from the filepicker can be used was
accidently negated, mostly causing a crash when cancelling an
animation preview download (open animation, File -> Save Texture As..),
and canceling the save when a filename is picked.

The lifetime of AIFileUpload is actually till the very end
of the main(), causing it's member mPicker to be reused.
This leads to problems. When someone tries to open a file picker
for a file upload of the same time before the previous filepicker
called the callback function (ie, when two filepickers are
opened at the same time, or when the plugin crashes).
With this fix it is possible to open any number of file pickers.

Finally, for linux, LLFastTimers was using assembly with gives
rather random results on multicore machines. Since AIStateMachine
is using this for wait timing, it had a negative effect on
how well the file picker worked (the last message wasn't flushed
for several seconds).
This commit is contained in:
Aleric Inglewood
2011-06-21 02:49:34 +02:00
parent 839418991e
commit b852a77a79
5 changed files with 20 additions and 188 deletions
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175
indra/llcommon/llfasttimer.cpp
View File

@@ -29,33 +29,22 @@
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "llfasttimer.h"
#include "llmemory.h"
#include "llprocessor.h"
#if LL_WINDOWS
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include "lltimer.h"
#elif LL_LINUX || LL_SOLARIS
#include <sys/time.h>
#include <sched.h>
#include "lltimer.h"
#elif LL_DARWIN
#include <sys/time.h>
#include "lltimer.h" // get_clock_count()
#else
#error "architecture not supported"
#endif
#include "lltimer.h"
//////////////////////////////////////////////////////////////////////////////
// statics
LLFastTimer::EFastTimerType LLFastTimer::sCurType = LLFastTimer::FTM_OTHER;
int LLFastTimer::sCurDepth = 0;
U64 LLFastTimer::sStart[LLFastTimer::FTM_MAX_DEPTH];
@@ -70,44 +59,12 @@ S32 LLFastTimer::sLastFrameIndex = -1;
int LLFastTimer::sPauseHistory = 0;
int LLFastTimer::sResetHistory = 0;
#define USE_RDTSC 0
U64 LLFastTimer::sClockResolution = calc_clock_frequency(50U); // Resolution of get_clock_count()
#if LL_LINUX || LL_SOLARIS
U64 LLFastTimer::sClockResolution = 1000000000; // 1e9, Nanosecond resolution
#else
U64 LLFastTimer::sClockResolution = 1000000; // 1e6, Microsecond resolution
#endif
//static
#if (LL_DARWIN || LL_LINUX || LL_SOLARIS) && !(defined(__i386__) || defined(__amd64__))
U64 LLFastTimer::countsPerSecond() // counts per second for the *32-bit* timer
{
return sClockResolution >> 8;
}
#else // windows or x86-mac or x86-linux or x86-solaris
U64 LLFastTimer::countsPerSecond() // counts per second for the *32-bit* timer
{
#if USE_RDTSC || !LL_WINDOWS
//getCPUFrequency returns MHz and sCPUClockFrequency wants to be in Hz
static U64 sCPUClockFrequency = U64(LLProcessorInfo().getCPUFrequency()*1000000.0);
// we drop the low-order byte in our timers, so report a lower frequency
#else
// If we're not using RDTSC, each fasttimer tick is just a performance counter tick.
// Not redefining the clock frequency itself (in llprocessor.cpp/calculate_cpu_frequency())
// since that would change displayed MHz stats for CPUs
static bool firstcall = true;
static U64 sCPUClockFrequency;
if (firstcall)
{
QueryPerformanceFrequency((LARGE_INTEGER*)&sCPUClockFrequency);
firstcall = false;
}
#endif
return sCPUClockFrequency >> 8;
}
#endif
void LLFastTimer::reset()
{
@@ -162,139 +119,17 @@ void LLFastTimer::reset()
// Important note: These implementations must be FAST!
//
#if LL_WINDOWS
//
// Windows implementation of CPU clock
//
//
// NOTE: put back in when we aren't using platform sdk anymore
//
// because MS has different signatures for these functions in winnt.h
// need to rename them to avoid conflicts
//#define _interlockedbittestandset _renamed_interlockedbittestandset
//#define _interlockedbittestandreset _renamed_interlockedbittestandreset
//#include <intrin.h>
//#undef _interlockedbittestandset
//#undef _interlockedbittestandreset
//inline U32 LLFastTimer::getCPUClockCount32()
//{
// U64 time_stamp = __rdtsc();
// return (U32)(time_stamp >> 8);
//}
//
//// return full timer value, *not* shifted by 8 bits
//inline U64 LLFastTimer::getCPUClockCount64()
//{
// return __rdtsc();
//}
// shift off lower 8 bits for lower resolution but longer term timing
// on 1Ghz machine, a 32-bit word will hold ~1000 seconds of timing
#if USE_RDTSC
U32 LLFastTimer::getCPUClockCount32()
{
U32 ret_val;
__asm
{
_emit 0x0f
_emit 0x31
shr eax,8
shl edx,24
or eax, edx
mov dword ptr [ret_val], eax
}
return ret_val;
}
// return full timer value, *not* shifted by 8 bits
U64 LLFastTimer::getCPUClockCount64()
{
U64 ret_val;
__asm
{
_emit 0x0f
_emit 0x31
mov eax,eax
mov edx,edx
mov dword ptr [ret_val+4], edx
mov dword ptr [ret_val], eax
}
return ret_val;
}
std::string LLFastTimer::sClockType = "rdtsc";
#else
//LL_COMMON_API U64 get_clock_count(); // in lltimer.cpp
// These use QueryPerformanceCounter, which is arguably fine and also works on amd architectures.
// On windows these use QueryPerformanceCounter, which is arguably fine and also works on amd architectures.
U32 LLFastTimer::getCPUClockCount32()
{
return (U32)(get_clock_count()>>8);
return get_clock_count() >> 8;
}
U64 LLFastTimer::getCPUClockCount64()
{
return get_clock_count();
}
std::string LLFastTimer::sClockType = "QueryPerformanceCounter";
#endif
#endif
#if (LL_LINUX || LL_SOLARIS) && !(defined(__i386__) || defined(__amd64__))
//
// Linux and Solaris implementation of CPU clock - non-x86.
// This is accurate but SLOW! Only use out of desperation.
//
// Try to use the MONOTONIC clock if available, this is a constant time counter
// with nanosecond resolution (but not necessarily accuracy) and attempts are
// made to synchronize this value between cores at kernel start. It should not
// be affected by CPU frequency. If not available use the REALTIME clock, but
// this may be affected by NTP adjustments or other user activity affecting
// the system time.
U64 LLFastTimer::getCPUClockCount64()
{
struct timespec tp;
#ifdef CLOCK_MONOTONIC // MONOTONIC supported at build-time?
if (-1 == clock_gettime(CLOCK_MONOTONIC,&tp)) // if MONOTONIC isn't supported at runtime then ouch, try REALTIME
#endif
clock_gettime(CLOCK_REALTIME,&tp);
return (tp.tv_sec*LLFastTimer::sClockResolution)+tp.tv_nsec;
}
U32 LLFastTimer::getCPUClockCount32()
{
return (U32)(LLFastTimer::getCPUClockCount64() >> 8);
}
std::string LLFastTimer::sClockType = "clock_gettime";
#endif // (LL_LINUX || LL_SOLARIS) && !(defined(__i386__) || defined(__amd64__))
#if (LL_LINUX || LL_SOLARIS || LL_DARWIN) && (defined(__i386__) || defined(__amd64__))
//
// Mac+Linux+Solaris FAST x86 implementation of CPU clock
U32 LLFastTimer::getCPUClockCount32()
{
U64 x;
__asm__ volatile (".byte 0x0f, 0x31": "=A"(x));
return (U32)(x >> 8);
}
U64 LLFastTimer::getCPUClockCount64()
{
U64 x;
__asm__ volatile (".byte 0x0f, 0x31": "=A"(x));
return x;
}
std::string LLFastTimer::sClockType = "rdtsc";
#endif