Bug 1632750 - New profiler IPDL functions to manage chunks across processes - r=canaltinova

Differential Revision: https://phabricator.services.mozilla.com/D72366

tools/profiler/gecko/PProfiler.ipdl

@@ -23,6 +23,9 @@ child:
   async Pause();
   async Resume();
 
+  async AwaitNextChunkManagerUpdate() returns (ProfileBufferChunkManagerUpdate update);
+  async DestroyReleasedChunksAtOrBefore(TimeStamp timeStamp);
+
   async GatherProfile() returns (Shmem profile);
 
   async ClearAllPages();

tools/profiler/gecko/ProfilerChild.cpp

@@ -83,6 +83,18 @@ static nsCString CollectProfileOrEmptyString(bool aIsShuttingDown) {
   return profileCString;
 }
 
+mozilla::ipc::IPCResult ProfilerChild::RecvAwaitNextChunkManagerUpdate(
+    AwaitNextChunkManagerUpdateResolver&& aResolve) {
+  // TODO, see following patches.
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult ProfilerChild::RecvDestroyReleasedChunksAtOrBefore(
+    const TimeStamp& aTimeStamp) {
+  // TODO, see following patches.
+  return IPC_OK();
+}
+
 mozilla::ipc::IPCResult ProfilerChild::RecvGatherProfile(
     GatherProfileResolver&& aResolve) {
   mozilla::ipc::Shmem shmem;

tools/profiler/gecko/ProfilerTypes.ipdlh

@@ -3,6 +3,8 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+using class mozilla::TimeStamp from "mozilla/TimeStamp.h";
+
 namespace mozilla {
 
 struct ProfilerInitParams {
@@ -15,4 +17,16 @@ struct ProfilerInitParams {
   nsCString[] filters;
 };
 
+struct ProfileBufferChunkMetadata {
+  TimeStamp doneTimeStamp;
+  uint32_t bufferBytes;
+};
+
+struct ProfileBufferChunkManagerUpdate {
+  uint64_t unreleasedBytes;
+  uint64_t releasedBytes;
+  TimeStamp oldestDoneTimeStamp;
+  ProfileBufferChunkMetadata[] newlyReleasedChunks;
+};
+
 } // namespace mozilla

tools/profiler/public/ProfilerChild.h

@@ -41,6 +41,10 @@ class ProfilerChild final : public PProfilerChild,
   mozilla::ipc::IPCResult RecvStop() override;
   mozilla::ipc::IPCResult RecvPause() override;
   mozilla::ipc::IPCResult RecvResume() override;
+  mozilla::ipc::IPCResult RecvAwaitNextChunkManagerUpdate(
+      AwaitNextChunkManagerUpdateResolver&& aResolve) override;
+  mozilla::ipc::IPCResult RecvDestroyReleasedChunksAtOrBefore(
+      const TimeStamp& aTimeStamp) override;
   mozilla::ipc::IPCResult RecvGatherProfile(
       GatherProfileResolver&& aResolve) override;
   mozilla::ipc::IPCResult RecvClearAllPages() override;