Merge changes from topic "more-binder-arrays" am: 16718009cd (d9f210e5) · Commits · e / os / android_frameworks_native-old

libs/binder/ndk/include_ndk/android/binder_parcel.h

+98 −44

Original line number	Diff line number	Diff line
		@@ -50,80 +50,120 @@ typedef struct AParcel AParcel;
		*/
		void AParcel_delete(AParcel* parcel) __INTRODUCED_IN(29);

		/**
		* This is called to allocate a buffer for a C-style string (null-terminated). The returned buffer
		* should be at least length bytes. This includes space for a null terminator. length will always be
		* strictly less than or equal to the maximum size that can be held in a size_t and will always be
		* greater than 0.
		*
		* See also AParcel_readString.
		*
		* If allocation fails, null should be returned.
		*/
		typedef char* (AParcel_stringAllocator)(void stringData, size_t length);

		/**
		* This is called to allocate an array of size 'length'.
		*
		* See also AParcel_readStringArray
		*/
		typedef bool (AParcel_stringArrayAllocator)(void arrayData, size_t length);

		/**
		* This is called to allocate a string inside of an array that was allocated by an
		* AParcel_stringArrayAllocator.
		*
		* The index returned will always be within the range [0, length of arrayData). The returned buffer
		* should be at least length bytes. This includes space for a null-terminator. length will always be
		* strictly less than or equal to the maximum size that can be held in a size_t and will always be
		* greater than 0.
		*
		* See also AParcel_readStringArray
		*/
		typedef char* (AParcel_stringArrayElementAllocator)(void arrayData, size_t index, size_t length);

		/**
		* This returns the length and buffer of an array at a specific index in an arrayData object.
		*
		* See also AParcel_writeStringArray
		*/
		typedef const char* (AParcel_stringArrayElementGetter)(const void arrayData, size_t index,
		size_t* outLength);

		// @START-PRIMITIVE-VECTOR-GETTERS
		/**
		* This is called to get the underlying data from an arrayData object.
		*
		* The implementation of this function should allocate a contiguous array of length length and
		* The implementation of this function should allocate a contiguous array of size 'length' and
		* return that underlying buffer to be filled out. If there is an error or length is 0, null may be
		* returned.
		*
		* See also AParcel_readInt32Array
		*/
		typedef int32_t* (AParcel_int32Allocator)(void arrayData, size_t length);
		typedef int32_t* (AParcel_int32ArrayAllocator)(void arrayData, size_t length);

		/**
		* This is called to get the underlying data from an arrayData object.
		*
		* The implementation of this function should allocate a contiguous array of length length and
		* The implementation of this function should allocate a contiguous array of size 'length' and
		* return that underlying buffer to be filled out. If there is an error or length is 0, null may be
		* returned.
		*
		* See also AParcel_readUint32Array
		*/
		typedef uint32_t* (AParcel_uint32Allocator)(void arrayData, size_t length);
		typedef uint32_t* (AParcel_uint32ArrayAllocator)(void arrayData, size_t length);

		/**
		* This is called to get the underlying data from an arrayData object.
		*
		* The implementation of this function should allocate a contiguous array of length length and
		* The implementation of this function should allocate a contiguous array of size 'length' and
		* return that underlying buffer to be filled out. If there is an error or length is 0, null may be
		* returned.
		*
		* See also AParcel_readInt64Array
		*/
		typedef int64_t* (AParcel_int64Allocator)(void arrayData, size_t length);
		typedef int64_t* (AParcel_int64ArrayAllocator)(void arrayData, size_t length);

		/**
		* This is called to get the underlying data from an arrayData object.
		*
		* The implementation of this function should allocate a contiguous array of length length and
		* The implementation of this function should allocate a contiguous array of size 'length' and
		* return that underlying buffer to be filled out. If there is an error or length is 0, null may be
		* returned.
		*
		* See also AParcel_readUint64Array
		*/
		typedef uint64_t* (AParcel_uint64Allocator)(void arrayData, size_t length);
		typedef uint64_t* (AParcel_uint64ArrayAllocator)(void arrayData, size_t length);

		/**
		* This is called to get the underlying data from an arrayData object.
		*
		* The implementation of this function should allocate a contiguous array of length length and
		* The implementation of this function should allocate a contiguous array of size 'length' and
		* return that underlying buffer to be filled out. If there is an error or length is 0, null may be
		* returned.
		*
		* See also AParcel_readFloatArray
		*/
		typedef float* (AParcel_floatAllocator)(void arrayData, size_t length);
		typedef float* (AParcel_floatArrayAllocator)(void arrayData, size_t length);

		/**
		* This is called to get the underlying data from an arrayData object.
		*
		* The implementation of this function should allocate a contiguous array of length length and
		* The implementation of this function should allocate a contiguous array of size 'length' and
		* return that underlying buffer to be filled out. If there is an error or length is 0, null may be
		* returned.
		*
		* See also AParcel_readDoubleArray
		*/
		typedef double* (AParcel_doubleAllocator)(void arrayData, size_t length);
		typedef double* (AParcel_doubleArrayAllocator)(void arrayData, size_t length);

		/**
		* This allocates an array of length length inside of arrayData and returns whether or not there was
		* This allocates an array of size 'length' inside of arrayData and returns whether or not there was
		* a success.
		*
		* See also AParcel_readBoolArray
		*/
		typedef bool (AParcel_boolAllocator)(void arrayData, size_t length);
		typedef bool (AParcel_boolArrayAllocator)(void arrayData, size_t length);

		/**
		* This is called to get the underlying data from an arrayData object at index.
		@@ -142,37 +182,27 @@ typedef void (AParcel_boolArraySetter)(void arrayData, size_t index, bool valu
		/**
		* This is called to get the underlying data from an arrayData object.
		*
		* The implementation of this function should allocate a contiguous array of length length and
		* The implementation of this function should allocate a contiguous array of size 'length' and
		* return that underlying buffer to be filled out. If there is an error or length is 0, null may be
		* returned.
		*
		* See also AParcel_readCharArray
		*/
		typedef char16_t* (AParcel_charAllocator)(void arrayData, size_t length);
		typedef char16_t* (AParcel_charArrayAllocator)(void arrayData, size_t length);

		/**
		* This is called to get the underlying data from an arrayData object.
		*
		* The implementation of this function should allocate a contiguous array of length length and
		* The implementation of this function should allocate a contiguous array of size 'length' and
		* return that underlying buffer to be filled out. If there is an error or length is 0, null may be
		* returned.
		*
		* See also AParcel_readByteArray
		*/
		typedef int8_t* (AParcel_byteAllocator)(void arrayData, size_t length);
		typedef int8_t* (AParcel_byteArrayAllocator)(void arrayData, size_t length);

		// @END-PRIMITIVE-VECTOR-GETTERS

		/**
		* This is called to allocate a buffer for a C-style string (null-terminated). The buffer should be
		* of length length which includes space for the null-terminator.
		*
		* See also AParcel_readString.
		*
		* If allocation fails, null should be returned.
		*/
		typedef char* (AParcel_stringAllocator)(void stringData, size_t length);

		/**
		* Writes an AIBinder to the next location in a non-null parcel. Can be null.
		*/
		@@ -229,20 +259,45 @@ binder_status_t AParcel_readStatusHeader(const AParcel* parcel, AStatus** status
		__INTRODUCED_IN(29);

		/**
		* Writes string value to the next location in a non-null parcel.
		* Writes utf-8 string value to the next location in a non-null parcel.
		*/
		binder_status_t AParcel_writeString(AParcel* parcel, const char* string, size_t length)
		__INTRODUCED_IN(29);

		/**
		* Reads and allocates string value from the next location in a non-null parcel.
		* Reads and allocates utf-8 string value from the next location in a non-null parcel.
		*
		* Data is passed to the string allocator once the string size is known. This size includes the
		* space for the null-terminator of this string. This allocator returns a buffer which is used as
		* the output buffer from this read.
		*/
		binder_status_t AParcel_readString(const AParcel* parcel, AParcel_stringAllocator allocator,
		void* stringData) __INTRODUCED_IN(29);
		binder_status_t AParcel_readString(const AParcel* parcel, void* stringData,
		AParcel_stringAllocator allocator) __INTRODUCED_IN(29);

		/**
		* Writes utf-8 string array data to the next location in a non-null parcel.
		*
		* length is the length of the array. AParcel_stringArrayElementGetter will be called for all
		* indices in range [0, length) with the arrayData provided here. The string length and buffer
		* returned from this function will be used to fill out the data from the parcel.
		*/
		binder_status_t AParcel_writeStringArray(AParcel* parcel, const void* arrayData, size_t length,
		AParcel_stringArrayElementGetter getter)
		__INTRODUCED_IN(29);

		/**
		* Reads and allocates utf-8 string array value from the next location in a non-null parcel.
		*
		* First, AParcel_stringArrayAllocator will be called with the size of the array to be read where
		* length is the length of the array to be read from the parcel. Then, for each index i in [0,
		* length), AParcel_stringArrayElementAllocator will be called with the length of the string to be
		* read from the parcel. The resultant buffer from each of these calls will be filled according to
		* the contents of the string that is read.
		*/
		binder_status_t AParcel_readStringArray(const AParcel* parcel, void* arrayData,
		AParcel_stringArrayAllocator allocator,
		AParcel_stringArrayElementAllocator elementAllocator)
		__INTRODUCED_IN(29);

		// @START-PRIMITIVE-READ-WRITE
		/**
		@@ -377,9 +432,8 @@ binder_status_t AParcel_writeDoubleArray(AParcel* parcel, const double* value, s
		* getter(arrayData, i) will be called for each i in [0, length) in order to get the underlying
		* values to write to the parcel.
		*/
		binder_status_t AParcel_writeBoolArray(AParcel* parcel, const void* arrayData,
		AParcel_boolArrayGetter getter, size_t length)
		__INTRODUCED_IN(29);
		binder_status_t AParcel_writeBoolArray(AParcel* parcel, const void* arrayData, size_t length,
		AParcel_boolArrayGetter getter) __INTRODUCED_IN(29);

		/**
		* Writes an array of char16_t to the next location in a non-null parcel.
		@@ -401,7 +455,7 @@ binder_status_t AParcel_writeByteArray(AParcel* parcel, const int8_t* value, siz
		* corresponding data
		*/
		binder_status_t AParcel_readInt32Array(const AParcel* parcel, void* arrayData,
		AParcel_int32Allocator allocator) __INTRODUCED_IN(29);
		AParcel_int32ArrayAllocator allocator) __INTRODUCED_IN(29);

		/**
		* Reads an array of uint32_t from the next location in a non-null parcel.
		@@ -411,7 +465,7 @@ binder_status_t AParcel_readInt32Array(const AParcel* parcel, void* arrayData,
		* corresponding data
		*/
		binder_status_t AParcel_readUint32Array(const AParcel* parcel, void* arrayData,
		AParcel_uint32Allocator allocator) __INTRODUCED_IN(29);
		AParcel_uint32ArrayAllocator allocator) __INTRODUCED_IN(29);

		/**
		* Reads an array of int64_t from the next location in a non-null parcel.
		@@ -421,7 +475,7 @@ binder_status_t AParcel_readUint32Array(const AParcel* parcel, void* arrayData,
		* corresponding data
		*/
		binder_status_t AParcel_readInt64Array(const AParcel* parcel, void* arrayData,
		AParcel_int64Allocator allocator) __INTRODUCED_IN(29);
		AParcel_int64ArrayAllocator allocator) __INTRODUCED_IN(29);

		/**
		* Reads an array of uint64_t from the next location in a non-null parcel.
		@@ -431,7 +485,7 @@ binder_status_t AParcel_readInt64Array(const AParcel* parcel, void* arrayData,
		* corresponding data
		*/
		binder_status_t AParcel_readUint64Array(const AParcel* parcel, void* arrayData,
		AParcel_uint64Allocator allocator) __INTRODUCED_IN(29);
		AParcel_uint64ArrayAllocator allocator) __INTRODUCED_IN(29);

		/**
		* Reads an array of float from the next location in a non-null parcel.
		@@ -441,7 +495,7 @@ binder_status_t AParcel_readUint64Array(const AParcel* parcel, void* arrayData,
		* corresponding data
		*/
		binder_status_t AParcel_readFloatArray(const AParcel* parcel, void* arrayData,
		AParcel_floatAllocator allocator) __INTRODUCED_IN(29);
		AParcel_floatArrayAllocator allocator) __INTRODUCED_IN(29);

		/**
		* Reads an array of double from the next location in a non-null parcel.
		@@ -451,7 +505,7 @@ binder_status_t AParcel_readFloatArray(const AParcel* parcel, void* arrayData,
		* corresponding data
		*/
		binder_status_t AParcel_readDoubleArray(const AParcel* parcel, void* arrayData,
		AParcel_doubleAllocator allocator) __INTRODUCED_IN(29);
		AParcel_doubleArrayAllocator allocator) __INTRODUCED_IN(29);

		/**
		* Reads an array of bool from the next location in a non-null parcel.
		@@ -460,7 +514,7 @@ binder_status_t AParcel_readDoubleArray(const AParcel* parcel, void* arrayData,
		* setter(arrayData, i, x) will be called where x is the value at the associated index.
		*/
		binder_status_t AParcel_readBoolArray(const AParcel* parcel, void* arrayData,
		AParcel_boolAllocator allocator,
		AParcel_boolArrayAllocator allocator,
		AParcel_boolArraySetter setter) __INTRODUCED_IN(29);

		/**
		@@ -471,7 +525,7 @@ binder_status_t AParcel_readBoolArray(const AParcel* parcel, void* arrayData,
		* corresponding data
		*/
		binder_status_t AParcel_readCharArray(const AParcel* parcel, void* arrayData,
		AParcel_charAllocator allocator) __INTRODUCED_IN(29);
		AParcel_charArrayAllocator allocator) __INTRODUCED_IN(29);

		/**
		* Reads an array of int8_t from the next location in a non-null parcel.
		@@ -481,7 +535,7 @@ binder_status_t AParcel_readCharArray(const AParcel* parcel, void* arrayData,
		* corresponding data
		*/
		binder_status_t AParcel_readByteArray(const AParcel* parcel, void* arrayData,
		AParcel_byteAllocator allocator) __INTRODUCED_IN(29);
		AParcel_byteArrayAllocator allocator) __INTRODUCED_IN(29);

		// @END-PRIMITIVE-READ-WRITE

libs/binder/ndk/include_ndk/android/binder_parcel_utils.h

+63 −8

Original line number	Diff line number	Diff line
		@@ -36,7 +36,7 @@
		namespace ndk {

		/**
		* This retrieves and allocates a vector to length length and returns the underlying buffer.
		* This retrieves and allocates a vector to size 'length' and returns the underlying buffer.
		*/
		template <typename T>
		static inline T* AParcel_stdVectorAllocator(void* vectorData, size_t length) {
		@@ -48,10 +48,18 @@ static inline T* AParcel_stdVectorAllocator(void* vectorData, size_t length) {
		}

		/**
		* This allocates a vector to length length and returns whether the allocation is successful.
		* This allocates a vector to size 'length' and returns whether the allocation is successful.
		*
		* See also AParcel_stdVectorAllocator. Types used with this allocator have their sizes defined
		* externally with respect to the NDK, and that size information is not passed into the NDK.
		* Instead, it is used in cases where callbacks are used.
		*
		* See AParcel_readVector(const AParcel* parcel, std::vector<bool>)
		* See AParcel_readVector(const AParcel* parcel, std::vector<std::string>)
		*/
		static inline bool AParcel_stdVectorBoolAllocator(void* vectorData, size_t length) {
		std::vector<bool>* vec = static_cast<std::vector<bool>*>(vectorData);
		template <typename T>
		static inline bool AParcel_stdVectorExternalAllocator(void* vectorData, size_t length) {
		std::vector<T>* vec = static_cast<std::vector<T>*>(vectorData);
		if (length > vec->max_size()) return false;

		vec->resize(length);
		@@ -173,8 +181,8 @@ inline binder_status_t AParcel_readVector(const AParcel* parcel, std::vector<dou
		* Writes a vector of bool to the next location in a non-null parcel.
		*/
		inline binder_status_t AParcel_writeVector(AParcel* parcel, const std::vector<bool>& vec) {
		return AParcel_writeBoolArray(parcel, static_cast<const void*>(&vec),
		AParcel_stdVectorGetter<bool>, vec.size());
		return AParcel_writeBoolArray(parcel, static_cast<const void*>(&vec), vec.size(),
		AParcel_stdVectorGetter<bool>);
		}

		/**
		@@ -182,7 +190,7 @@ inline binder_status_t AParcel_writeVector(AParcel* parcel, const std::vector<bo
		*/
		inline binder_status_t AParcel_readVector(const AParcel* parcel, std::vector<bool>* vec) {
		void* vectorData = static_cast<void*>(vec);
		return AParcel_readBoolArray(parcel, vectorData, AParcel_stdVectorBoolAllocator,
		return AParcel_readBoolArray(parcel, vectorData, AParcel_stdVectorExternalAllocator<bool>,
		AParcel_stdVectorSetter<bool>);
		}

		@@ -228,6 +236,32 @@ static inline char* AParcel_stdStringAllocator(void* stringData, size_t length)
		return &(*str)[0];
		}

		/**
		* Allocates a std::string inside of a std::vector<std::string> at index index to size 'length'.
		*/
		static inline char* AParcel_stdVectorStringElementAllocator(void* vectorData, size_t index,
		size_t length) {
		std::vector<std::string>* vec = static_cast<std::vector<std::string>*>(vectorData);

		std::string& element = vec->at(index);
		element.resize(length - 1);
		return &element[0];
		}

		/**
		* This gets the length and buffer of a std::string inside of a std::vector<std::string> at index
		* index.
		*/
		static inline const char* AParcel_stdVectorStringElementGetter(const void* vectorData, size_t index,
		size_t* outLength) {
		const std::vector<std::string>* vec = static_cast<const std::vector<std::string>*>(vectorData);

		const std::string& element = vec->at(index);

		*outLength = element.size();
		return element.c_str();
		}

		/**
		* Convenience API for writing a std::string.
		*/
		@@ -240,7 +274,28 @@ static inline binder_status_t AParcel_writeString(AParcel* parcel, const std::st
		*/
		static inline binder_status_t AParcel_readString(const AParcel* parcel, std::string* str) {
		void* stringData = static_cast<void*>(str);
		return AParcel_readString(parcel, AParcel_stdStringAllocator, stringData);
		return AParcel_readString(parcel, stringData, AParcel_stdStringAllocator);
		}

		/**
		* Convenience API for writing a std::vector<std::string>
		*/
		static inline binder_status_t AParcel_writeVector(AParcel* parcel,
		const std::vector<std::string>& vec) {
		const void* vectorData = static_cast<const void*>(&vec);
		return AParcel_writeStringArray(parcel, vectorData, vec.size(),
		AParcel_stdVectorStringElementGetter);
		}

		/**
		* Convenience API for reading a std::vector<std::string>
		*/
		static inline binder_status_t AParcel_readVector(const AParcel* parcel,
		std::vector<std::string>* vec) {
		void* vectorData = static_cast<void*>(vec);
		return AParcel_readStringArray(parcel, vectorData,
		AParcel_stdVectorExternalAllocator<std::string>,
		AParcel_stdVectorStringElementAllocator);
		}

		template <typename T>

libs/binder/ndk/libbinder_ndk.map.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -41,6 +41,7 @@ LIBBINDER_NDK { # introduced=29
		AParcel_readParcelFileDescriptor;
		AParcel_readStatusHeader;
		AParcel_readString;
		AParcel_readStringArray;
		AParcel_readStrongBinder;
		AParcel_readUint32;
		AParcel_readUint32Array;
		@@ -63,6 +64,7 @@ LIBBINDER_NDK { # introduced=29
		AParcel_writeParcelFileDescriptor;
		AParcel_writeStatusHeader;
		AParcel_writeString;
		AParcel_writeStringArray;
		AParcel_writeStrongBinder;
		AParcel_writeUint32;
		AParcel_writeUint32Array;

libs/binder/ndk/parcel.cpp

+79 −17

File changed.

Preview size limit exceeded, changes collapsed.

libs/binder/ndk/scripts/gen_parcel_helper.py

+12 −12

Original line number	Diff line number	Diff line
		@@ -89,10 +89,10 @@ def main():
		for pretty, cpp in data_types:
		nca = pretty in non_contiguously_addressable

		arg_type = "const " + cpp + "* value"
		if nca: arg_type = "const void* arrayData, AParcel_" + pretty.lower() + "ArrayGetter getter"
		arg_types = "const " + cpp + "* value, size_t length"
		if nca: arg_types = "const void* arrayData, size_t length, AParcel_" + pretty.lower() + "ArrayGetter getter"
		args = "value, length"
		if nca: args = "arrayData, getter, length, &Parcel::write" + pretty
		if nca: args = "arrayData, length, getter, &Parcel::write" + pretty

		header += "/**\n"
		header += " * Writes an array of " + cpp + " to the next location in a non-null parcel.\n"
		@@ -101,8 +101,8 @@ def main():
		header += " * getter(arrayData, i) will be called for each i in [0, length) in order to get the underlying values to write "
		header += "to the parcel.\n"
		header += " */\n"
		header += "binder_status_t AParcel_write" + pretty + "Array(AParcel* parcel, " + arg_type + ", size_t length) __INTRODUCED_IN(29);\n\n"
		source += "binder_status_t AParcel_write" + pretty + "Array(AParcel* parcel, " + arg_type + ", size_t length) {\n"
		header += "binder_status_t AParcel_write" + pretty + "Array(AParcel* parcel, " + arg_types + ") __INTRODUCED_IN(29);\n\n"
		source += "binder_status_t AParcel_write" + pretty + "Array(AParcel* parcel, " + arg_types + ") {\n"
		source += " return WriteArray<" + cpp + ">(parcel, " + args + ");\n";
		source += "}\n\n"

		@@ -111,13 +111,13 @@ def main():

		read_func = "AParcel_read" + pretty + "Array"
		write_func = "AParcel_write" + pretty + "Array"
		allocator_type = "AParcel_" + pretty.lower() + "Allocator"
		allocator_type = "AParcel_" + pretty.lower() + "ArrayAllocator"
		getter_type = "AParcel_" + pretty.lower() + "ArrayGetter"
		setter_type = "AParcel_" + pretty.lower() + "ArraySetter"

		if nca:
		pre_header += "/**\n"
		pre_header += " * This allocates an array of length length inside of arrayData and returns whether or not there was "
		pre_header += " * This allocates an array of size 'length' inside of arrayData and returns whether or not there was "
		pre_header += "a success.\n"
		pre_header += " *\n"
		pre_header += " * See also " + read_func + "\n"
		@@ -141,7 +141,7 @@ def main():
		pre_header += "/**\n"
		pre_header += " * This is called to get the underlying data from an arrayData object.\n"
		pre_header += " *\n"
		pre_header += " * The implementation of this function should allocate a contiguous array of length length and "
		pre_header += " * The implementation of this function should allocate a contiguous array of size 'length' and "
		pre_header += "return that underlying buffer to be filled out. If there is an error or length is 0, null may be "
		pre_header += "returned.\n"
		pre_header += " *\n"
		@@ -178,9 +178,9 @@ def main():
		cpp_helper += " * Writes a vector of " + cpp + " to the next location in a non-null parcel.\n"
		cpp_helper += " */\n"
		cpp_helper += "inline binder_status_t AParcel_writeVector(AParcel* parcel, const std::vector<" + cpp + ">& vec) {\n"
		write_args = "vec.data()"
		if nca: write_args = "static_cast<const void*>(&vec), AParcel_stdVectorGetter<" + cpp + ">"
		cpp_helper += " return AParcel_write" + pretty + "Array(parcel, " + write_args + ", vec.size());\n"
		write_args = "vec.data(), vec.size()"
		if nca: write_args = "static_cast<const void*>(&vec), vec.size(), AParcel_stdVectorGetter<" + cpp + ">"
		cpp_helper += " return AParcel_write" + pretty + "Array(parcel, " + write_args + ");\n"
		cpp_helper += "}\n\n"

		cpp_helper += "/**\n"
		@@ -192,7 +192,7 @@ def main():
		read_args += ["parcel"]
		read_args += ["vectorData"]
		if nca:
		read_args += ["AParcel_stdVectorBoolAllocator"]
		read_args += ["AParcel_stdVectorExternalAllocator<bool>"]
		read_args += ["AParcel_stdVectorSetter<" + cpp + ">"]
		else:
		read_args += ["AParcel_stdVectorAllocator<" + cpp + ">"]