tiny.trace.ObjectEntry

1pub const ObjectEntry = struct {2    object_id: u64,3    allocation_index: ?usize = null,4    free_index: ?usize = null,5    allocated_at: ?event.Timepoint = null,6    freed_at: ?event.Timepoint = null,7    size: u64 = 0,8    alignment: u32 = 0,9    label: ?[]const u8 = null,1011    pub fn fromAllocationAlloc(allocator: std.mem.Allocator, index: usize, item: event.Event) !ObjectEntry {12        return .{13            .object_id = item.object_id,14            .allocation_index = index,15            .allocated_at = item.timepoint,16            .size = item.size,17            .alignment = item.alignment,18            .label = if (item.label) |label| try allocator.dupe(u8, label) else null,19        };20    }2122    pub fn fromFree(index: usize, item: event.Event) ObjectEntry {23        return .{24            .object_id = item.object_id,25            .free_index = index,26            .freed_at = item.timepoint,27        };28    }2930    pub fn status(self: ObjectEntry) []const u8 {31        if (self.allocated_at == null) return "free_without_allocation";32        if (self.freed_at != null) return "freed";33        return "live";34    }3536    pub fn deinit(self: *ObjectEntry, allocator: std.mem.Allocator) void {37        if (self.label) |label| allocator.free(label);38        self.* = undefined;39    }4041    pub fn writeJsonLine(self: ObjectEntry, writer: *std.Io.Writer) !void {42        var stream = pretty_json.Writer.init(writer, .minified);43        const object = try stream.object();44        try object.field("event", "object");45        try object.field("object_id", self.object_id);46        try object.field("status", self.status());47        try object.field("allocation_index", self.allocation_index);48        try object.field("free_index", self.free_index);49        try writeOptionalTimepointField(object, "allocated_at", self.allocated_at);50        try writeOptionalTimepointField(object, "freed_at", self.freed_at);51        try object.field("size", self.size);52        try object.field("alignment", self.alignment);53        if (self.label) |label| try object.field("label", label);54        try object.endLine();55    }56};

1pub const ObjectEntry = replay.ObjectEntry;