Merge "Remove need for libbinderthreadstate." am: 26d0eb321c am: 32415facc1 (12859131) · Commits · e / os / platform_frameworks_native

PREUPLOAD.cfg

+1 −0

Original line number	Diff line number	Diff line
		@@ -7,6 +7,7 @@ clang_format = --commit ${PREUPLOAD_COMMIT} --style file --extensions c,h,cc,cpp
		cmds/idlcli/
		include/input/
		libs/binder/ndk/
		libs/binderthreadstate/
		libs/graphicsenv/
		libs/gui/
		libs/input/

libs/binder/Android.bp

+0 −1

Original line number	Diff line number	Diff line
		@@ -138,7 +138,6 @@ cc_library {
		"liblog",
		"libcutils",
		"libutils",
		"libbinderthreadstate",
		],

		header_libs: [

libs/binder/IPCThreadState.cpp

+7 −8

Original line number	Diff line number	Diff line
		@@ -17,7 +17,6 @@
		#define LOG_TAG "IPCThreadState"

		#include <binder/IPCThreadState.h>
		#include <binderthreadstate/IPCThreadStateBase.h>

		#include <binder/Binder.h>
		#include <binder/BpBinder.h>
		@@ -803,6 +802,7 @@ status_t IPCThreadState::clearDeathNotification(int32_t handle, BpBinder* proxy)

		IPCThreadState::IPCThreadState()
		: mProcess(ProcessState::self()),
		mServingStackPointer(nullptr),
		mWorkSource(kUnsetWorkSource),
		mPropagateWorkSource(false),
		mStrictModePolicy(0),
		@@ -813,7 +813,6 @@ IPCThreadState::IPCThreadState()
		clearCaller();
		mIn.setDataCapacity(256);
		mOut.setDataCapacity(256);
		mIPCThreadStateBase = IPCThreadStateBase::self();
		}

		IPCThreadState::~IPCThreadState()
		@@ -1163,9 +1162,6 @@ status_t IPCThreadState::executeCommand(int32_t cmd)
		"Not enough command data for brTRANSACTION");
		if (result != NO_ERROR) break;

		//Record the fact that we're in a binder call.
		mIPCThreadStateBase->pushCurrentState(
		IPCThreadStateBase::CallState::BINDER);
		Parcel buffer;
		buffer.ipcSetDataReference(
		reinterpret_cast<const uint8_t*>(tr.data.ptr.buffer),
		@@ -1173,6 +1169,9 @@ status_t IPCThreadState::executeCommand(int32_t cmd)
		reinterpret_cast<const binder_size_t*>(tr.data.ptr.offsets),
		tr.offsets_size/sizeof(binder_size_t), freeBuffer, this);

		const void* origServingStackPointer = mServingStackPointer;
		mServingStackPointer = &origServingStackPointer; // anything on the stack

		const pid_t origPid = mCallingPid;
		const char* origSid = mCallingSid;
		const uid_t origUid = mCallingUid;
		@@ -1223,7 +1222,6 @@ status_t IPCThreadState::executeCommand(int32_t cmd)
		error = the_context_object->transact(tr.code, buffer, &reply, tr.flags);
		}

		mIPCThreadStateBase->popCurrentState();
		//ALOGI("<<<< TRANSACT from pid %d restore pid %d sid %s uid %d\n",
		// mCallingPid, origPid, (origSid ? origSid : "<N/A>"), origUid);

		@@ -1235,6 +1233,7 @@ status_t IPCThreadState::executeCommand(int32_t cmd)
		LOG_ONEWAY("NOT sending reply to %d!", mCallingPid);
		}

		mServingStackPointer = origServingStackPointer;
		mCallingPid = origPid;
		mCallingSid = origSid;
		mCallingUid = origUid;
		@@ -1290,8 +1289,8 @@ status_t IPCThreadState::executeCommand(int32_t cmd)
		return result;
		}

		bool IPCThreadState::isServingCall() const {
		return mIPCThreadStateBase->getCurrentBinderCallState() == IPCThreadStateBase::CallState::BINDER;
		const void* IPCThreadState::getServingStackPointer() const {
		return mServingStackPointer;
		}

		void IPCThreadState::threadDestructor(void *st)

libs/binder/TEST_MAPPING

+3 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,9 @@
		},
		{
		"name": "aidl_lazy_test"
		},
		{
		"name": "libbinderthreadstateutils_test"
		}
		]
		}

libs/binder/include/binder/IPCThreadState.h

+6 −27

Original line number	Diff line number	Diff line
		@@ -29,8 +29,6 @@ typedef int uid_t;
		// ---------------------------------------------------------------------------
		namespace android {

		class IPCThreadStateBase;

		class IPCThreadState
		{
		public:
		@@ -113,31 +111,12 @@ public:
		// Service manager registration
		void setTheContextObject(sp<BBinder> obj);

		// Is this thread currently serving a binder call. This method
		// returns true if while traversing backwards from the function call
		// stack for this thread, we encounter a function serving a binder
		// call before encountering a hwbinder call / hitting the end of the
		// call stack.
		// Eg: If thread T1 went through the following call pattern
		// 1) T1 receives and executes hwbinder call H1.
		// 2) While handling H1, T1 makes binder call B1.
		// 3) The handler of B1, calls into T1 with a callback B2.
		// If isServingCall() is called during H1 before 3), this method
		// will return false, else true.
		//
		// ----
		// \| B2 \| ---> While callback B2 is being handled, during 3).
		// ----
		// \| H1 \| ---> While H1 is being handled.
		// ----
		// Fig: Thread Call stack while handling B2
		// WARNING: DO NOT USE THIS API
		//
		// This is since after 3), while traversing the thread call stack,
		// we hit a binder call before a hwbinder call / end of stack. This
		// method may be typically used to determine whether to use
		// hardware::IPCThreadState methods or IPCThreadState methods to
		// infer information about thread state.
		bool isServingCall() const;
		// Returns a pointer to the stack from the last time a transaction
		// was initiated by the kernel. Used to compare when making nested
		// calls between multiple different transports.
		const void* getServingStackPointer() const;

		// The work source represents the UID of the process we should attribute the transaction
		// to. We use -1 to specify that the work source was not set using #setWorkSource.
		@@ -181,6 +160,7 @@ private:
		Parcel mIn;
		Parcel mOut;
		status_t mLastError;
		const void* mServingStackPointer;
		pid_t mCallingPid;
		const char* mCallingSid;
		uid_t mCallingUid;
		@@ -191,7 +171,6 @@ private:
		bool mPropagateWorkSource;
		int32_t mStrictModePolicy;
		int32_t mLastTransactionBinderFlags;
		IPCThreadStateBase *mIPCThreadStateBase;

		ProcessState::CallRestriction mCallRestriction;
		};