Update TracyAllocator to new allocator API

Author: silversquirl

src/tracy.zig

@@ -120,20 +120,21 @@ pub fn TracyAllocator(comptime name: ?[:0]const u8) type {
                 .vtable = &.{
                     .alloc = allocFn,
                     .resize = resizeFn,
+                    .remap = remapFn,
                     .free = freeFn,
                 },
             };
         }
 
-        fn allocFn(ptr: *anyopaque, len: usize, ptr_align: u8, ret_addr: usize) ?[*]u8 {
+        fn allocFn(ptr: *anyopaque, len: usize, alignment: std.mem.Alignment, ret_addr: usize) ?[*]u8 {
             const self: *Self = @ptrCast(@alignCast(ptr));
-            const result = self.parent_allocator.rawAlloc(len, ptr_align, ret_addr);
-            if (result) |data| {
+            const result = self.parent_allocator.rawAlloc(len, alignment, ret_addr);
+            if (result) |memory| {
                 if (len != 0) {
                     if (name) |n| {
-                        allocNamed(data, len, n);
+                        allocNamed(memory, len, n);
                     } else {
-                        alloc(data, len);
+                        alloc(memory, len);
                     }
                 }
             } else {
@@ -142,15 +143,15 @@ pub fn TracyAllocator(comptime name: ?[:0]const u8) type {
             return result;
         }
 
-        fn resizeFn(ptr: *anyopaque, buf: []u8, buf_align: u8, new_len: usize, ret_addr: usize) bool {
+        fn resizeFn(ptr: *anyopaque, memory: []u8, alignment: std.mem.Alignment, new_len: usize, ret_addr: usize) bool {
             const self: *Self = @ptrCast(@alignCast(ptr));
-            if (self.parent_allocator.rawResize(buf, buf_align, new_len, ret_addr)) {
+            if (self.parent_allocator.rawResize(memory, alignment, new_len, ret_addr)) {
                 if (name) |n| {
-                    freeNamed(buf.ptr, n);
-                    allocNamed(buf.ptr, new_len, n);
+                    freeNamed(memory.ptr, n);
+                    allocNamed(memory.ptr, new_len, n);
                 } else {
-                    free(buf.ptr);
-                    alloc(buf.ptr, new_len);
+                    free(memory.ptr);
+                    alloc(memory.ptr, new_len);
                 }
 
                 return true;
@@ -161,16 +162,33 @@ pub fn TracyAllocator(comptime name: ?[:0]const u8) type {
             return false;
         }
 
-        fn freeFn(ptr: *anyopaque, buf: []u8, buf_align: u8, ret_addr: usize) void {
+        fn remapFn(ptr: *anyopaque, memory: []u8, alignment: std.mem.Alignment, new_len: usize, ret_addr: usize) ?[*]u8 {
             const self: *Self = @ptrCast(@alignCast(ptr));
-            self.parent_allocator.rawFree(buf, buf_align, ret_addr);
+            if (self.parent_allocator.rawRemap(memory, alignment, new_len, ret_addr)) |new_memory| {
+                if (name) |n| {
+                    freeNamed(memory.ptr, n);
+                    allocNamed(new_memory, new_len, n);
+                } else {
+                    free(memory.ptr);
+                    alloc(new_memory, new_len);
+                }
+                return new_memory;
+            } else {
+                messageColor("reallocation failed", 0xFF0000);
+                return null;
+            }
+        }
+
+        fn freeFn(ptr: *anyopaque, memory: []u8, alignment: std.mem.Alignment, ret_addr: usize) void {
+            const self: *Self = @ptrCast(@alignCast(ptr));
+            self.parent_allocator.rawFree(memory, alignment, ret_addr);
             // this condition is to handle free being called on an empty slice that was never even allocated
             // example case: `std.process.getSelfExeSharedLibPaths` can return `&[_][:0]u8{}`
-            if (buf.len != 0) {
+            if (memory.len != 0) {
                 if (name) |n| {
-                    freeNamed(buf.ptr, n);
+                    freeNamed(memory.ptr, n);
                 } else {
-                    free(buf.ptr);
+                    free(memory.ptr);
                 }
             }
         }