Initial project import

tools/v/vlib/sync/tls.v

@@ -0,0 +1,111 @@
+module sync
+
+// ThreadLocalStorage provides thread-local storage for values of type T
+@[noinit]
+struct ThreadLocalStorage[T] {
+mut:
+	key    u64  // TLS key identifier. Note: While Linux uses unsigned int, Darwin requires unsigned long. u64 accommodates both.
+	in_use bool // Allocation status flag
+}
+
+// DataConversion convert voidptr to/from type T
+union DataConversion {
+mut:
+	f_u8  u8
+	f_u16 u16
+	f_u32 u32
+	f_u64 u64
+
+	f_i8  i8
+	f_i16 i16
+	f_i32 i32
+	f_i64 i64
+
+	f_voidptr voidptr
+	f_isize   isize
+	f_usize   usize
+	f_int     int
+	f_f32     f32
+	f_f64     f64
+	f_rune    rune
+}
+
+// convert_t_to_voidptr convert value from type T to voidptr
+@[inline]
+fn convert_t_to_voidptr[T](value T) !voidptr {
+	mut f := DataConversion{}
+	$if T is i8 {
+		f.f_i8 = value
+	} $else $if T is i16 {
+		f.f_i16 = value
+	} $else $if T is i32 {
+		f.f_i32 = value
+	} $else $if T is i64 {
+		f.f_i64 = value
+	} $else $if T is u8 {
+		f.f_u8 = value
+	} $else $if T is u16 {
+		f.f_u16 = value
+	} $else $if T is u32 {
+		f.f_u32 = value
+	} $else $if T is u64 {
+		f.f_u64 = value
+	} $else $if T is $pointer {
+		f.f_voidptr = voidptr(value)
+	} $else $if T is isize {
+		f.f_isize = value
+	} $else $if T is usize {
+		f.f_usize = value
+	} $else $if T is int {
+		f.f_int = value
+	} $else $if T is f32 {
+		f.f_f32 = value
+	} $else $if T is f64 {
+		f.f_f64 = value
+	} $else $if T is rune {
+		f.f_rune = value
+	} $else {
+		return error('Unsupported data type `${T.name}` to voidptr')
+	}
+	return unsafe { f.f_voidptr }
+}
+
+// convert_voidptr_to_t convert value from voidptr to type T
+@[inline]
+fn convert_voidptr_to_t[T](value voidptr) !T {
+	f := DataConversion{
+		f_voidptr: value
+	}
+	$if T is i8 {
+		return unsafe { f.f_i8 }
+	} $else $if T is i16 {
+		return unsafe { f.f_i16 }
+	} $else $if T is i32 {
+		return unsafe { f.f_i32 }
+	} $else $if T is i64 {
+		return unsafe { f.f_i64 }
+	} $else $if T is u8 {
+		return unsafe { f.f_u8 }
+	} $else $if T is u16 {
+		return unsafe { f.f_u16 }
+	} $else $if T is u32 {
+		return unsafe { f.f_u32 }
+	} $else $if T is u64 {
+		return unsafe { f.f_u64 }
+	} $else $if T is $pointer {
+		return unsafe { f.f_voidptr }
+	} $else $if T is isize {
+		return unsafe { f.f_isize }
+	} $else $if T is usize {
+		return unsafe { f.f_usize }
+	} $else $if T is int {
+		return unsafe { f.f_int }
+	} $else $if T is f32 {
+		return unsafe { f.f_f32 }
+	} $else $if T is f64 {
+		return unsafe { f.f_f64 }
+	} $else $if T is rune {
+		return unsafe { f.f_rune }
+	}
+	return error('Unsupported data type `${T.name}` from voidptr')
+}