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authorIndrajith K L2022-12-03 17:00:20 +0530
committerIndrajith K L2022-12-03 17:00:20 +0530
commitf5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch)
tree2764fc62da58f2ba8da7ed341643fc359873142f /v_windows/v/vlib/sync/atomic2/atomic.v
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Diffstat (limited to 'v_windows/v/vlib/sync/atomic2/atomic.v')
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diff --git a/v_windows/v/vlib/sync/atomic2/atomic.v b/v_windows/v/vlib/sync/atomic2/atomic.v
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+module atomic2
+
+/*
+Implements the atomic operations. For now TCC does not support
+the atomic versions on nix so it uses locks to simulate the same behavor.
+On windows tcc can simulate with other atomic operations.
+
+The @VEXEROOT/thirdparty/stdatomic contains compability header files
+for stdatomic that supports both nix, windows and c++.
+
+This implementations should be regarded as alpha stage and be
+further tested.
+*/
+
+#flag windows -I @VEXEROOT/thirdparty/stdatomic/win
+#flag linux -I @VEXEROOT/thirdparty/stdatomic/nix
+#flag darwin -I @VEXEROOT/thirdparty/stdatomic/nix
+#flag freebsd -I @VEXEROOT/thirdparty/stdatomic/nix
+#flag solaris -I @VEXEROOT/thirdparty/stdatomic/nix
+
+$if linux {
+ $if tinyc {
+ $if amd64 {
+ // most Linux distributions have /usr/lib/libatomic.so, but Ubuntu uses gcc version specific dir
+ #flag -L/usr/lib/gcc/x86_64-linux-gnu/6
+ #flag -L/usr/lib/gcc/x86_64-linux-gnu/7
+ #flag -L/usr/lib/gcc/x86_64-linux-gnu/8
+ #flag -L/usr/lib/gcc/x86_64-linux-gnu/9
+ #flag -L/usr/lib/gcc/x86_64-linux-gnu/10
+ #flag -L/usr/lib/gcc/x86_64-linux-gnu/11
+ #flag -L/usr/lib/gcc/x86_64-linux-gnu/12
+ } $else $if arm64 {
+ #flag -L/usr/lib/gcc/aarch64-linux-gnu/6
+ #flag -L/usr/lib/gcc/aarch64-linux-gnu/7
+ #flag -L/usr/lib/gcc/aarch64-linux-gnu/8
+ #flag -L/usr/lib/gcc/aarch64-linux-gnu/9
+ #flag -L/usr/lib/gcc/aarch64-linux-gnu/10
+ #flag -L/usr/lib/gcc/aarch64-linux-gnu/11
+ #flag -L/usr/lib/gcc/aarch64-linux-gnu/12
+ }
+ #flag -latomic
+ }
+}
+#include <atomic.h>
+// add_u64 adds provided delta as an atomic operation
+pub fn add_u64(ptr &u64, delta int) bool {
+ res := C.atomic_fetch_add_u64(voidptr(ptr), delta)
+ return res == 0
+}
+
+// sub_u64 subtracts provided delta as an atomic operation
+pub fn sub_u64(ptr &u64, delta int) bool {
+ res := C.atomic_fetch_sub_u64(voidptr(ptr), delta)
+ return res == 0
+}
+
+// add_i64 adds provided delta as an atomic operation
+pub fn add_i64(ptr &i64, delta int) bool {
+ res := C.atomic_fetch_add_u64(voidptr(ptr), delta)
+ return res == 0
+}
+
+// add_i64 subtracts provided delta as an atomic operation
+pub fn sub_i64(ptr &i64, delta int) bool {
+ res := C.atomic_fetch_sub_u64(voidptr(ptr), delta)
+ return res == 0
+}
+
+// atomic store/load operations have to be used when there might be another concurrent access
+// atomicall set a value
+pub fn store_u64(ptr &u64, val u64) {
+ C.atomic_store_u64(voidptr(ptr), val)
+}
+
+// atomicall get a value
+pub fn load_u64(ptr &u64) u64 {
+ return C.atomic_load_u64(voidptr(ptr))
+}
+
+// atomicall set a value
+pub fn store_i64(ptr &i64, val i64) {
+ C.atomic_store_u64(voidptr(ptr), val)
+}
+
+// atomicall get a value
+pub fn load_i64(ptr &i64) i64 {
+ return i64(C.atomic_load_u64(voidptr(ptr)))
+}