feat(profiling): Simplify exporter

Author: danielsn

.github/workflows/test.yml

@@ -126,6 +126,38 @@ jobs:
         env:
           DATADOG_API_KEY: ${{ secrets.DATADOG_API_KEY }}
 
+  test-cxx:
+    name: "cargo test with cxx features #${{ matrix.platform }}"
+    runs-on: ${{ matrix.platform }}
+    env:
+      CARGO_TERM_COLOR: always
+      CARGO_INCREMENTAL: 0
+    strategy:
+      matrix:
+        platform: [windows-latest, ubuntu-latest, macos-15]
+      fail-fast: false
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # 4.2.2
+      - name: Install cargo nextest
+        uses: taiki-e/install-action@2c41309d51ede152b6f2ee6bf3b71e6dc9a8b7df # 2.49.27
+        with:
+          tool: nextest@0.9.96
+      - name: Cache [rust]
+        uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # 2.8.1
+        with:
+          cache-targets: true # cache build artifacts
+          cache-bin: true # cache the ~/.cargo/bin directory
+          prefix-key: "cxx-tests"
+      - name: "cargo build with cxx features"
+        shell: bash
+        run: cargo build --features libdd-profiling/cxx,libdd-crashtracker/cxx --package libdd-profiling --package libdd-crashtracker --verbose
+      - name: "cargo nextest run with cxx features"
+        shell: bash
+        run: cargo nextest run --features libdd-profiling/cxx,libdd-crashtracker/cxx --package libdd-profiling --package libdd-crashtracker --verbose
+        env:
+          RUST_BACKTRACE: full
+
   ffi:
     name: "FFI #${{ matrix.platform }} ${{ matrix.rust_version }}"
     runs-on: ${{ matrix.platform }}

Cargo.lock

@@ -76,6 +76,7 @@ Windows:
 **Core Types:**
 - `Profile` - Profile builder for collecting samples
 - `ProfileExporter` - Exporter for sending profiles to Datadog
+- `CancellationToken` - Token for cancelling profile export operations
 - `Tag` - Key-value tags for profile metadata
 - `AttachmentFile` - Additional file to attach to profile (name + data bytes)
 
@@ -97,6 +98,12 @@ By default, the example saves the profile to `profile.pprof`. To export to Datad
 
 See [`profiling.cpp`](profiling.cpp) for a complete example showing profile creation, sample collection, and exporting to Datadog with optional attachments and metadata.
 
+**Cancellation Token Support:**
+
+Profiling exports support cancellation tokens for thread-safe cancellation of long-running export operations. Use `send_profile()` for normal exports or `send_profile_with_cancellation()` when you need cancellation support.
+
+See the example code in [`profiling.cpp`](profiling.cpp) for how to create and use cancellation tokens with the exporter.
+
 **Requirements:**
 - C++20 compiler
 - For agent mode: Datadog agent running (default: localhost:8126)