getProcessFreezeInfo reads more info from kernel
Improve primitive binder function to check if a process has any pending
binder transactions so that the freezer policy can choose to wait and
drain those pending transactions.
Bug: 198493121
Test: app launch/foreground/background stress test
Change-Id: Ia7ce6899ddaeb8e8453b0b8f3536d129b6b761d3
Merged-In: Ia7ce6899ddaeb8e8453b0b8f3536d129b6b761d3
diff --git a/libs/binder/IPCThreadState.cpp b/libs/binder/IPCThreadState.cpp
index 445df9e..c415ea0 100644
--- a/libs/binder/IPCThreadState.cpp
+++ b/libs/binder/IPCThreadState.cpp
@@ -1398,6 +1398,25 @@
return ret;
}
+#ifndef __ANDROID_VNDK__
+status_t IPCThreadState::getProcessFreezeInfo(pid_t pid, uint32_t *sync_received,
+ uint32_t *async_received)
+{
+ int ret = 0;
+ binder_frozen_status_info info;
+ info.pid = pid;
+
+#if defined(__ANDROID__)
+ if (ioctl(self()->mProcess->mDriverFD, BINDER_GET_FROZEN_INFO, &info) < 0)
+ ret = -errno;
+#endif
+ *sync_received = info.sync_recv;
+ *async_received = info.async_recv;
+
+ return ret;
+}
+#endif
+
status_t IPCThreadState::freeze(pid_t pid, bool enable, uint32_t timeout_ms) {
struct binder_freeze_info info;
int ret = 0;