audioflinger: Dump software patches
Example output:
Software patches:
Patch 44: thread 0xa6d83900 => thread 0xa7dfe000
This helps to identify threads used for the patch.
Test: adb shell dumpsys media.audio_flinger
Change-Id: I6c70945abd8e4abd46cd0311559d35efb6127555
diff --git a/services/audioflinger/PatchPanel.cpp b/services/audioflinger/PatchPanel.cpp
index be3286f..76661e7 100644
--- a/services/audioflinger/PatchPanel.cpp
+++ b/services/audioflinger/PatchPanel.cpp
@@ -467,6 +467,14 @@
mPlayback.closeConnections(panel);
}
+String8 AudioFlinger::PatchPanel::Patch::dump(audio_patch_handle_t myHandle)
+{
+ String8 result;
+ result.appendFormat("Patch %d: thread %p => thread %p\n",
+ myHandle, mRecord.thread().get(), mPlayback.thread().get());
+ return result;
+}
+
/* Disconnect a patch */
status_t AudioFlinger::PatchPanel::releaseAudioPatch(audio_patch_handle_t handle)
{
@@ -555,4 +563,26 @@
return mAudioFlinger.mAudioHwDevs.valueAt(index)->hwDevice();
}
+void AudioFlinger::PatchPanel::dump(int fd)
+{
+ // Only dump software patches.
+ bool headerPrinted = false;
+ for (auto& iter : mPatches) {
+ if (iter.second.isSoftware()) {
+ if (!headerPrinted) {
+ String8 header("\nSoftware patches:\n");
+ write(fd, header.string(), header.size());
+ headerPrinted = true;
+ }
+ String8 patchDump(" ");
+ patchDump.append(iter.second.dump(iter.first));
+ write(fd, patchDump.string(), patchDump.size());
+ }
+ }
+ if (headerPrinted) {
+ String8 trailing("\n");
+ write(fd, trailing.string(), trailing.size());
+ }
+}
+
} // namespace android