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Make string extracting for SQLite database a little bit faster and allocate a little bit less memory

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This commit is contained in:
UnknownShadow200 2023-12-19 22:06:49 +11:00
parent c8b174efde
commit cc9a71bc1b
1 changed files with 6 additions and 6 deletions
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12
MCGalaxy/Database/Backends/SQLiteBackend.cs
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@ -364,18 +364,17 @@ namespace MCGalaxy.SQL
return data; return data;
} }
public static string FromUTF8(IntPtr ptr, int len) { public unsafe static string FromUTF8(IntPtr ptr, int len) {
if (ptr == IntPtr.Zero) return ""; if (ptr == IntPtr.Zero) return "";
byte* mem = (byte*)ptr;
if (len < 0) { if (len < 0) {
len = 0; len = 0;
while (Marshal.ReadByte(ptr, len) != 0) { len++; } while (mem[len] != 0) { len++; }
} }
if (len == 0) return ""; if (len == 0) return "";
byte[] data = new byte[len]; return utf8.GetString(mem, len);
Marshal.Copy(ptr, data, 0, len);
return utf8.GetString(data, 0, len);
} }
public static DateTime ToDateTime(string text) { public static DateTime ToDateTime(string text) {
@ -659,7 +658,8 @@ namespace MCGalaxy.SQL
if (count <= 0) return; if (count <= 0) return;
paramNames = new string[count]; paramNames = new string[count];
for (int i = 0; i < count; i++) { for (int i = 0; i < count; i++)
{
IntPtr p = Interop.sqlite3_bind_parameter_name(handle, i + 1); IntPtr p = Interop.sqlite3_bind_parameter_name(handle, i + 1);
paramNames[i] = SQLiteConvert.FromUTF8(p, -1); paramNames[i] = SQLiteConvert.FromUTF8(p, -1);
} }