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Rewrite condition variables

Browse source 
Implement helper functions balanced_wait_until and balanced_awaken
They include new path for Windows 8.1+ (WaitOnAddress)

shared_mutex, cond_variable, cond_one, cond_x16 modified to use it
Added helper function utils::popcnt16
Replace most semaphore<> with shared_mutex
This commit is contained in:
Nekotekina 2018-11-26 18:55:22 +03:00
parent f442a8a84c
commit 96cabeadff
23 changed files with 269 additions and 338 deletions
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14
Utilities/asm.h
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@ -44,6 +44,20 @@ namespace utils
#endif
}
inline u8 popcnt16(u16 arg)
{
const u32 a1 = arg & 0x5555;
const u32 a2 = (arg >> 1) & 0x5555;
const u32 a3 = a1 + a2;
const u32 b1 = a3 & 0x3333;
const u32 b2 = (a3 >> 2) & 0x3333;
const u32 b3 = b1 + b2;
const u32 c1 = b3 & 0x0f0f;
const u32 c2 = (b3 >> 4) & 0x0f0f;
const u32 c3 = c1 + c2;
return static_cast<u8>(c3 + (c3 >> 8));
}
// Rotate helpers
#if defined(__GNUG__)