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Refactor some hash stuff.

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Move SteamNetworkingIdentityHash to be inline.
Add SteamNetworkingIPAddrHash

P4:6761702
This commit is contained in:
Fletcher Dunn
2021-09-10 19:22:31 -07:00
parent 3ebfc3483f
commit ea705e89e0
2 changed files with 23 additions and 14 deletions
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src/steamnetworkingsockets/steamnetworkingsockets_internal.h
+23 -2
View File
@@ -559,10 +559,31 @@ inline int64 NearestWithSameLowerBits( T nLowerBits, int64 nReference )
return nReference + nDiff;
}
/// Calculate hash of identity.
/// Calculate hash of SteamNetworkingIdentity
struct SteamNetworkingIdentityHash
{
uint32 operator()( const SteamNetworkingIdentity &x ) const;
uint32 operator()(struct SteamNetworkingIdentity const &x ) const
{
// Make sure we don't have any packing or alignment issues
COMPILE_TIME_ASSERT( offsetof( SteamNetworkingIdentity, m_eType ) == 0 );
COMPILE_TIME_ASSERT( sizeof( x.m_eType ) == 4 );
COMPILE_TIME_ASSERT( offsetof( SteamNetworkingIdentity, m_cbSize ) == 4 );
COMPILE_TIME_ASSERT( sizeof( x.m_cbSize ) == 4 );
COMPILE_TIME_ASSERT( offsetof( SteamNetworkingIdentity, m_steamID64 ) == 8 );
return Murmorhash32( &x, sizeof( x.m_eType ) + sizeof( x.m_cbSize ) + x.m_cbSize );
}
};
/// Calculate hash of SteamNetworkingIPAddr
struct SteamNetworkingIPAddrHash
{
uint32 operator()( struct SteamNetworkingIPAddr const &x ) const
{
// Make sure we don't have any packing or alignment issues
COMPILE_TIME_ASSERT( sizeof( SteamNetworkingIPAddr ) == 16+2 );
return Murmorhash32( &x, sizeof( SteamNetworkingIPAddr ) );
};
};
inline bool IsValidSteamIDForIdentity( CSteamID steamID )
src/steamnetworkingsockets/steamnetworkingsockets_shared.cpp
-12
View File
@@ -107,18 +107,6 @@ uint32 Murmorhash32( const void *data, size_t len )
return h;
}
uint32 SteamNetworkingIdentityHash::operator()(struct SteamNetworkingIdentity const &x ) const
{
// Make sure we don't have any packing or alignment issues
COMPILE_TIME_ASSERT( offsetof( SteamNetworkingIdentity, m_eType ) == 0 );
COMPILE_TIME_ASSERT( sizeof( x.m_eType ) == 4 );
COMPILE_TIME_ASSERT( offsetof( SteamNetworkingIdentity, m_cbSize ) == 4 );
COMPILE_TIME_ASSERT( sizeof( x.m_cbSize ) == 4 );
COMPILE_TIME_ASSERT( offsetof( SteamNetworkingIdentity, m_steamID64 ) == 8 );
return Murmorhash32( &x, sizeof( x.m_eType ) + sizeof( x.m_cbSize ) + x.m_cbSize );
}
} // namespace SteamNetworkingSocketsLib
using namespace SteamNetworkingSocketsLib;