cdp: ctx state has init and deinit now

Author: krichprollsch

src/cdp/cdp.zig

@@ -34,6 +34,7 @@ const IncomingMessage = @import("msg.zig").IncomingMessage;
 const Input = @import("msg.zig").Input;
 const inspector = @import("inspector.zig").inspector;
 const dom = @import("dom.zig").dom;
+const cdpdom = @import("dom.zig");
 const css = @import("css.zig").css;
 const security = @import("security.zig").security;
 
@@ -129,6 +130,33 @@ pub const State = struct {
     loaderID: []const u8 = LoaderID,
 
     page_life_cycle_events: bool = false, // TODO; Target based value
+
+    // DOM
+    nodelist: cdpdom.NodeList,
+    nodesearchlist: cdpdom.NodeSearchList,
+
+    pub fn init(alloc: std.mem.Allocator) State {
+        return .{
+            .nodelist = cdpdom.NodeList.init(alloc),
+            .nodesearchlist = cdpdom.NodeSearchList.init(alloc),
+        };
+    }
+
+    pub fn deinit(self: *State) void {
+        self.nodelist.deinit();
+
+        // deinit all node searches.
+        for (self.nodesearchlist.items) |*s| s.deinit();
+        self.nodesearchlist.deinit();
+    }
+
+    pub fn reset(self: *State) void {
+        self.nodelist.reset();
+
+        // deinit all node searches.
+        for (self.nodesearchlist.items) |*s| s.deinit();
+        self.nodesearchlist.clearAndFree();
+    }
 };
 
 // Utils

src/cdp/page.zig

@@ -259,6 +259,7 @@ fn navigate(
     log.debug("Req > id {d}, method {s}", .{ input.id, "page.navigate" });
 
     // change state
+    ctx.state.reset();
     ctx.state.url = input.params.url;
     // TODO: hard coded ID
     ctx.state.loaderID = "AF8667A203C5392DBE9AC290044AA4C2";

src/server.zig

@@ -69,13 +69,17 @@ pub const Ctx = struct {
     last_active: ?std.time.Instant = null,
 
     // CDP
-    state: cdp.State = .{},
+    state: cdp.State = undefined,
 
     // JS fields
     browser: *Browser, // TODO: is pointer mandatory here?
     sessionNew: bool,
     // try_catch: jsruntime.TryCatch, // TODO
 
+    pub fn deinit(self: *Ctx) void {
+        self.state.deinit();
+    }
+
     // callbacks
     // ---------
 
@@ -458,7 +462,10 @@ pub fn handle(
         .accept_completion = &accept_completion,
         .conn_completion = &conn_completion,
         .timeout_completion = &timeout_completion,
+        .state = cdp.State.init(browser.session.alloc),
     };
+    defer ctx.deinit();
+
     try browser.session.initInspector(
         &ctx,
         Ctx.onInspectorResp,