!1533 SetSearchElementInfoByAccessibilityReult接口改为使用RawData传递数据

Merge pull request !1533 from taojuncun/bug_1113_01

common/interface/include/accessibility_element_operator_callback_proxy.h

@@ -100,8 +100,6 @@ private:
     bool SendTransactCmd(AccessibilityInterfaceCode code, MessageParcel &data,
         MessageParcel &reply,  MessageOption &option);
 
-    int32_t GetTransmitFlag(int32_t time, int32_t leftSize);
-
     static inline BrokerDelegator<AccessibilityElementOperatorCallbackProxy> delegator;
 };
 } // namespace Accessibility

common/interface/include/accessibility_element_operator_callback_stub.h

@@ -23,19 +23,6 @@
 
 namespace OHOS {
 namespace Accessibility {
-
-class StoreElementData {
-public:
-    StoreElementData() = default;
-    ~StoreElementData() = default;
-    void WriteData(std::vector<AccessibilityElementInfo> &infos);
-    std::vector<AccessibilityElementInfo> ReadData();
-    size_t Size();
-    void Clear();
-    std::vector<AccessibilityElementInfo> storeData_ = {};
-    ffrt::mutex mutex_;
-};
-
 /*
 * The class define the interface for UI to implement.
 * It triggered by ABMS when AA to request the accessibility information.
@@ -63,7 +50,6 @@ public:
     virtual int OnRemoteRequest(uint32_t code, MessageParcel &data, MessageParcel &reply,
         MessageOption &option) override;
 
-    static StoreElementData storeElementData;
 private:
     /**
      * @brief Handle the IPC request for the function:SetSearchElementInfoByAccessibilityIdResult.

common/interface/src/accessibility_element_operator_callback_proxy.cpp

@@ -20,8 +20,7 @@
 namespace OHOS {
 namespace Accessibility {
 
-constexpr int32_t IPC_MEMORY_SIZE = 500 * 1024; // default size is 200 * 1024B, batch query need more memory
+constexpr int32_t MAX_RAWDATA_SIZE = 128 * 1024 * 1024; // RawData limit is 128M, limited by IPC
-constexpr int32_t SINGLE_TRANSMIT = -2;
 constexpr int32_t MULTI_TRANSMIT_FINISH = -1;
 constexpr int32_t DATA_NUMBER_ONE_TIME = 400;
 
@@ -60,77 +59,57 @@ bool AccessibilityElementOperatorCallbackProxy::SendTransactCmd(AccessibilityInt
     return true;
 }
 
-int32_t AccessibilityElementOperatorCallbackProxy::GetTransmitFlag(int32_t time, int32_t leftSize)
-{
-    int32_t flag = time;
-    if (time == 0 && leftSize <= DATA_NUMBER_ONE_TIME) {
-        flag = SINGLE_TRANSMIT;
-    } else if (leftSize <= DATA_NUMBER_ONE_TIME) {
-        flag = MULTI_TRANSMIT_FINISH;
-    }
-
-    return flag;
-}
-
 void AccessibilityElementOperatorCallbackProxy::SetSearchElementInfoByAccessibilityIdResult(
     const std::vector<AccessibilityElementInfo> &infos, const int32_t requestId)
 {
     HILOG_DEBUG("infos size %{public}zu, resquestId %{public}d", infos.size(), requestId);
-    int32_t leftSize = static_cast<int32_t>(infos.size());
+    MessageParcel data;
-    int32_t time = 0;
+    MessageParcel reply;
-    int32_t index = 0;
+    MessageOption option(MessageOption::TF_ASYNC);
-    while (leftSize >= 0) {
+    if (!WriteInterfaceToken(data)) {
-        MessageParcel data;
+        HILOG_ERROR("connection write token failed");
-        MessageParcel reply;
+        return;
-        MessageOption type = MessageOption::TF_SYNC;
+    }
-        if (leftSize <= DATA_NUMBER_ONE_TIME) {
-            type = MessageOption::TF_ASYNC;
-        }
-        MessageOption option(type);
-        data.SetMaxCapacity(IPC_MEMORY_SIZE);
-        
-        // when infos size is a multi of 800, do not send the last empty reply
-        if (leftSize == 0 && time > 0) {
-            return;
-        }
-        if (!WriteInterfaceToken(data)) {
-            return;
-        }
 
-        int32_t flag = GetTransmitFlag(time, leftSize);
+    if (!data.WriteInt32(requestId)) {
-        if (!data.WriteInt32(flag)) {
+        HILOG_ERROR("connection write request id failed");
-            return;
+        return;
-        }
+    }
 
-        int32_t writeSize = (leftSize <= DATA_NUMBER_ONE_TIME) ? leftSize : DATA_NUMBER_ONE_TIME;
+    if (!data.WriteUint32(infos.size())) {
-        if (!data.WriteInt32(writeSize)) {
+        HILOG_ERROR("write infos's size failed");
-            return;
+        return;
-        }
+    }
 
-        for (int32_t i = 0; i < writeSize; ++i) {
+    MessageParcel tmpParcel;
-            AccessibilityElementInfoParcel infoParcel(infos[index]);
+    tmpParcel.SetMaxCapacity(MAX_RAWDATA_SIZE);
-            index++;
+    // when set pracel's max capacity, it won't alloc memory immediately
-            if (!data.WriteParcelable(&infoParcel)) {
+    // MessageParcel will expand memory dynamiclly
-                HILOG_ERROR("accessibility element info failed index %{public}d", index);
+    for (const auto &info : infos) {
-                return;
+        AccessibilityElementInfoParcel infoParcel(info);
-            }
+        if (!tmpParcel.WriteParcelable(&infoParcel)) {
-        }
+            HILOG_ERROR("write accessibilityElementInfoParcel failed");
-
-        if (!data.WriteInt32(requestId)) {
-            return;
-        }
-
-        if (!SendTransactCmd(AccessibilityInterfaceCode::SET_RESULT_BY_ACCESSIBILITY_ID, data, reply, option)) {
-            HILOG_ERROR("set search element info by accessibility id result failed");
-            return;
-        }
-    
-        leftSize -= DATA_NUMBER_ONE_TIME;
-        time++;
-        if (static_cast<RetError>(reply.ReadInt32()) != RET_OK) {
             return;
         }
     }
+    size_t tmpParcelSize = tmpParcel.GetDataSize();
+    if (!data.WriteUint32(tmpParcelSize)) {
+        HILOG_ERROR("write rawData size failed");
+        return;
+    }
+    if (!data.WriteRawData(reinterpret_cast<uint8_t *>(tmpParcel.GetData()), tmpParcelSize)) {
+        HILOG_ERROR("write rawData failed");
+        return;
+    }
+
+    if (!SendTransactCmd(AccessibilityInterfaceCode::SET_RESULT_BY_ACCESSIBILITY_ID, data, reply, option)) {
+        HILOG_ERROR("setSearchElementInfoByAccessibilityIdResult failed");
+        return;
+    }
+    if (static_cast<RetError>(reply.ReadInt32() != RET_OK)) {
+        HILOG_ERROR("read reply code failed");
+    }
+    return;
 }
 
 void AccessibilityElementOperatorCallbackProxy::SetSearchElementInfoByTextResult(

common/interface/src/accessibility_element_operator_callback_stub.cpp

@@ -18,6 +18,7 @@
 #include "accessibility_ipc_interface_code.h"
 #include "hilog_wrapper.h"
 #include "parcel_util.h"
+#include <securec.h>
 
 #define SWITCH_BEGIN(code) switch (code) {
 #define SWITCH_CASE(case_code, func)     \
@@ -49,41 +50,31 @@ namespace Accessibility {
 constexpr int32_t SINGLE_TRANSMIT = -2;
 constexpr int32_t MULTI_TRANSMIT_FINISH = -1;
 constexpr int32_t ERR_CODE_DEFAULT = -1000;
+constexpr int32_t MAX_RAWDATA_SIZE = 128 * 1024 * 1024; // RawData limit is 128M, limited by IPC
 
-void StoreElementData::WriteData(std::vector<AccessibilityElementInfo> &infos)
+static bool GetData(size_t size, const void *data, void *&buffer)
 {
-    HILOG_DEBUG();
+    if (data == nullptr || size == 0) {
-    std::lock_guard<ffrt::mutex> lock(mutex_);
+        return false;
-    storeData_.insert(storeData_.end(), infos.begin(), infos.end());
+    }
-}
+    if (size > MAX_RAWDATA_SIZE) {
-
+        return false;
-void StoreElementData::Clear()
+    }
-{
+    buffer = malloc(size);
-    HILOG_DEBUG();
+    if (buffer == nullptr) {
-    std::lock_guard<ffrt::mutex> lock(mutex_);
+        return false;
-    storeData_.clear();
+    }
-}
+    if (memcpy_s(buffer, size, data, size) != EOK) {
-
+        free(buffer);
-std::vector<AccessibilityElementInfo> StoreElementData::ReadData()
+        return false;
-{
+    }
-    HILOG_DEBUG();
+    return true;
-    std::lock_guard<ffrt::mutex> lock(mutex_);
-    return storeData_;
-}
-
-size_t StoreElementData::Size()
-{
-    HILOG_DEBUG();
-    std::lock_guard<ffrt::mutex> lock(mutex_);
-    return storeData_.size();
 }
 
 AccessibilityElementOperatorCallbackStub::AccessibilityElementOperatorCallbackStub()
 {
 }
 
-StoreElementData AccessibilityElementOperatorCallbackStub::storeElementData;
-
 AccessibilityElementOperatorCallbackStub::~AccessibilityElementOperatorCallbackStub()
 {
 }
@@ -116,39 +107,33 @@ ErrCode AccessibilityElementOperatorCallbackStub::HandleSetSearchElementInfoByAc
     MessageParcel &data, MessageParcel &reply)
 {
     HILOG_DEBUG();
-    int32_t flag = data.ReadInt32();
+    std::vector<AccessibilityElementInfo> storeData;
-    if (flag == SINGLE_TRANSMIT || flag == 0) {
+    int32_t requestId = data.ReadInt32();
-        storeElementData.Clear();
+    size_t infoSize = data.ReadUint32();
-    }
+    size_t rawDataSize = data.ReadUint32();
-
+    MessageParcel tmpParcel;
-    int32_t accessibilityInfosize = data.ReadInt32();
+    void *buffer = nullptr;
-    std::vector<AccessibilityElementInfo> tmpData;
+    // memory alloced in GetData will be released when tmpParcel destruct
-    bool verifyResult = ContainerSecurityVerify(data, accessibilityInfosize, tmpData.max_size());
+    if (!GetData(rawDataSize, data.ReadRawData(rawDataSize), buffer)) {
-    if (!verifyResult || accessibilityInfosize < 0 || accessibilityInfosize > INT32_MAX) {
+        reply.WriteInt32(RET_ERR_FAILED);
         return TRANSACTION_ERR;
     }
-    for (int32_t i = 0; i < accessibilityInfosize; i++) {
+
-        sptr<AccessibilityElementInfoParcel> accessibilityInfo =
+    if (!tmpParcel.ParseFrom(reinterpret_cast<uintptr_t>(buffer), rawDataSize)) {
-            data.ReadStrongParcelable<AccessibilityElementInfoParcel>();
+        reply.WriteInt32(RET_ERR_FAILED);
-        if (accessibilityInfo == nullptr) {
+        return TRANSACTION_ERR;
-            HILOG_ERROR("ReadStrongParcelable<accessibilityInfo> failed");
+    }
-            storeElementData.Clear();
+
+    for (size_t i = 0; i < infoSize; i++) {
+        sptr<AccessibilityElementInfoParcel> info = tmpParcel.ReadStrongParcelable<AccessibilityElementInfoParcel>();
+        if (info == nullptr) {
             reply.WriteInt32(RET_ERR_FAILED);
             return TRANSACTION_ERR;
         }
-        tmpData.push_back(*accessibilityInfo);
+        storeData.emplace_back(*info);
     }
-
+    reply.WriteInt32(RET_OK);
-    storeElementData.WriteData(tmpData); // get all data and push once
+    SetSearchElementInfoByAccessibilityIdResult(storeData, requestId);
-    int32_t requestId = data.ReadInt32();
-    if (flag == SINGLE_TRANSMIT || flag == MULTI_TRANSMIT_FINISH) {
-        reply.WriteInt32(0);
-        HILOG_DEBUG("infos size %{public}zu, requestId %{public}d", storeElementData.Size(), requestId);
-        SetSearchElementInfoByAccessibilityIdResult(storeElementData.ReadData(), requestId);
-        return NO_ERROR;
-    }
-
-    reply.WriteInt32(0);
     return NO_ERROR;
 }
 

common/interface/test/unittest/mock/mock_accessibility_element_operator_callback_proxy.cpp

@@ -60,77 +60,57 @@ bool AccessibilityElementOperatorCallbackProxyTest::SendTransactCmd(Accessibilit
     return true;
 }
 
-int32_t AccessibilityElementOperatorCallbackProxyTest::GetTransmitFlag(int32_t time, int32_t leftSize)
+void AccessibilityElementOperatorCallbackProxy::SetSearchElementInfoByAccessibilityIdResult(
-{
-    int32_t flag = time;
-    if (time == 0 && leftSize <= DATA_NUMBER_ONE_TIME) {
-        flag = SINGLE_TRANSMIT;
-    } else if (leftSize <= DATA_NUMBER_ONE_TIME) {
-        flag = MULTI_TRANSMIT_FINISH;
-    }
-
-    return flag;
-}
-
-void AccessibilityElementOperatorCallbackProxyTest::SetSearchElementInfoByAccessibilityIdResult(
     const std::vector<AccessibilityElementInfo> &infos, const int32_t requestId)
 {
     HILOG_DEBUG("infos size %{public}zu, resquestId %{public}d", infos.size(), requestId);
-    int32_t leftSize = static_cast<int32_t>(infos.size());
+    MessageParcel data;
-    int32_t time = 0;
+    MessageParcel reply;
-    int32_t index = 0;
+    MessageOption option(MessageOption::TF_ASYNC);
-    while (leftSize >= 0) {
+    if (!WriteInterfaceToken(data)) {
-        MessageParcel data;
+        HILOG_ERROR("connection write token failed");
-        MessageParcel reply;
+        return;
-        MessageOption type = MessageOption::TF_SYNC;
+    }
-        if (leftSize <= DATA_NUMBER_ONE_TIME) {
-            type = MessageOption::TF_ASYNC;
-        }
-        MessageOption option(type);
-        data.SetMaxCapacity(IPC_MEMORY_SIZE);
-        
-        // when infos size is a multi of 800, do not send the last empty reply
-        if (leftSize == 0 && time > 0) {
-            return;
-        }
-        if (!WriteInterfaceToken(data)) {
-            return;
-        }
 
-        int32_t flag = GetTransmitFlag(time, leftSize);
+    if (!data.WriteInt32(requestId)) {
-        if (!data.WriteInt32(flag)) {
+        HILOG_ERROR("connection write request id failed");
-            return;
+        return;
-        }
+    }
 
-        int32_t writeSize = (leftSize <= DATA_NUMBER_ONE_TIME) ? leftSize : DATA_NUMBER_ONE_TIME;
+    if (!data.WriteInt32(infos.size())) {
-        if (!data.WriteInt32(writeSize)) {
+        HILOG_ERROR("write infos's size failed");
-            return;
+        return;
-        }
+    }
 
-        for (int32_t i = 0; i < writeSize; ++i) {
+    MessageParcel tmpParcel;
-            AccessibilityElementInfoParcel infoParcel(infos[index]);
+    tmpParcel.SetMaxCapacity(MAX_RAWDATA_SIZE);
-            index++;
+    // when set pracel's max capacity, it won't alloc memory immediately
-            if (!data.WriteParcelable(&infoParcel)) {
+    // MessageParcel will expand memory dynamiclly
-                HILOG_ERROR("accessibility element info failed index %{public}d", index);
+    for (const auto &info : infos) {
-                return;
+        AccessibilityElementInfoParcel infoParcel(info);
-            }
+        if (!tmpParcel.WriteParcelable(&infoParcel)) {
-        }
+            HILOG_ERROR("write accessibilityElementInfoParcel failed");
-
-        if (!data.WriteInt32(requestId)) {
-            return;
-        }
-
-        if (!SendTransactCmd(AccessibilityInterfaceCode::SET_RESULT_BY_ACCESSIBILITY_ID, data, reply, option)) {
-            HILOG_ERROR("set search element info by accessibility id result failed");
-            return;
-        }
-    
-        leftSize -= DATA_NUMBER_ONE_TIME;
-        time++;
-        if (static_cast<RetError>(reply.ReadInt32()) != RET_OK) {
             return;
         }
     }
+    size_t tmpParcelSize = tmpParcel.GetDataSize();
+    if (!data.WriteUint32(tmpParcelSize)) {
+        HILOG_ERROR("write rawData size failed");
+        return;
+    }
+    if (!data.WriteRawData(reinterpret_cast<uint8_t *>(tmpParcel.GetData()), tmpParcelSize)) {
+        HILOG_ERROR("write rawData failed");
+        return;
+    }
+
+    if (!SendTransactCmd(AccessibilityInterfaceCode::SET_RESULT_BY_ACCESSIBILITY_ID, data, reply, option)) {
+        HILOG_ERROR("setSearchElementInfoByAccessibilityIdResult failed");
+        return;
+    }
+    if (static_cast<RetError>(reply.ReadInt32() != RET_OK)) {
+        HILOG_ERROR("read reply code failed");
+    }
+    return;
 }
 
 void AccessibilityElementOperatorCallbackProxyTest::SetSearchElementInfoByTextResult(

common/interface/test/unittest/mock/mock_accessibility_element_operator_callback_stub.cpp

@@ -18,6 +18,7 @@
 #include "accessibility_ipc_interface_code.h"
 #include "hilog_wrapper.h"
 #include "parcel_util.h"
+#include <securec.h>
 
 #define SWITCH_BEGIN(code) switch (code) {
 #define SWITCH_CASE(case_code, func) case case_code:\
@@ -49,41 +50,31 @@ namespace Accessibility {
 constexpr int32_t SINGLE_TRANSMIT = -2;
 constexpr int32_t MULTI_TRANSMIT_FINISH = -1;
 constexpr int32_t ERR_CODE_DEFAULT = -1000;
+constexpr int32_t MAX_RAWDATA_SIZE = 128 * 1024 * 1024; // RawData limit is 128M, limited by IPC
 
-void StoreElementData::WriteData(std::vector<AccessibilityElementInfo> &infos)
+static bool GetData(size_t size, const void *data, void *&buffer)
 {
-    HILOG_DEBUG();
+    if (data == nullptr || size == 0) {
-    std::lock_guard<ffrt::mutex> lock(mutex_);
+        return false;
-    storeData_.insert(storeData_.end(), infos.begin(), infos.end());
+    }
-}
+    if (size > MAX_RAWDATA_SIZE) {
-
+        return false;
-void StoreElementData::Clear()
+    }
-{
+    buffer = malloc(size);
-    HILOG_DEBUG();
+    if (buffer == nullptr) {
-    std::lock_guard<ffrt::mutex> lock(mutex_);
+        return false;
-    storeData_.clear();
+    }
-}
+    if (memcpy_s(buffer, size, data, size) != EOK) {
-
+        free(buffer);
-std::vector<AccessibilityElementInfo> StoreElementData::ReadData()
+        return false;
-{
+    }
-    HILOG_DEBUG();
+    return true;
-    std::lock_guard<ffrt::mutex> lock(mutex_);
-    return storeData_;
-}
-
-size_t StoreElementData::Size()
-{
-    HILOG_DEBUG();
-    std::lock_guard<ffrt::mutex> lock(mutex_);
-    return storeData_.size();
 }
 
 AccessibilityElementOperatorCallbackStubTest::AccessibilityElementOperatorCallbackStubTest()
 {
 }
 
-StoreElementData AccessibilityElementOperatorCallbackStubTest::storeElementData;
-
 AccessibilityElementOperatorCallbackStubTest::~AccessibilityElementOperatorCallbackStubTest()
 {
 }
@@ -116,39 +107,33 @@ ErrCode AccessibilityElementOperatorCallbackStubTest::HandleSetSearchElementInfo
     MessageParcel &data, MessageParcel &reply)
 {
     HILOG_DEBUG();
-    int32_t flag = data.ReadInt32();
+    std::vector<AccessibilityElementInfo> storeData;
-    if (flag == SINGLE_TRANSMIT || flag == 0) {
+    int32_t requestId = data.ReadInt32();
-        storeElementData.Clear();
+    size_t infoSize = data.ReadUint32();
-    }
+    size_t rawDataSize = data.ReadUint32();
-
+    MessageParcel tmpParcel;
-    int32_t accessibilityInfosize = data.ReadInt32();
+    void *buffer = nullptr;
-    std::vector<AccessibilityElementInfo> tmpData;
+    // memory alloced in GetData will be released when tmpParcel destruct
-    bool verifyResult = ContainerSecurityVerify(data, accessibilityInfosize, tmpData.max_size());
+    if (!GetData(rawDataSize, data.ReadRawData(rawDataSize), buffer)) {
-    if (!verifyResult || accessibilityInfosize < 0 || accessibilityInfosize > INT32_MAX) {
+        reply.WriteInt32(RET_ERR_FAILED);
         return TRANSACTION_ERR;
     }
-    for (int32_t i = 0; i < accessibilityInfosize; i++) {
+
-        sptr<AccessibilityElementInfoParcel> accessibilityInfo =
+    if (!tmpParcel.ParseFrom(reinterpret_cast<uintptr_t>(buffer), rawDataSize)) {
-            data.ReadStrongParcelable<AccessibilityElementInfoParcel>();
+        reply.WriteInt32(RET_ERR_FAILED);
-        if (accessibilityInfo == nullptr) {
+        return TRANSACTION_ERR;
-            HILOG_ERROR("ReadStrongParcelable<accessibilityInfo> failed");
+    }
-            storeElementData.Clear();
+
+    for (size_t i = 0; i < infoSize; i++) {
+        sptr<AccessibilityElementInfoParcel> info = tmpParcel.ReadStrongParcelable<AccessibilityElementInfoParcel>();
+        if (info == nullptr) {
             reply.WriteInt32(RET_ERR_FAILED);
             return TRANSACTION_ERR;
         }
-        tmpData.push_back(*accessibilityInfo);
+        storeData.emplace_back(*info);
     }
-
+    reply.WriteInt32(RET_OK);
-    storeElementData.WriteData(tmpData); // get all data and push once
+    SetSearchElementInfoByAccessibilityIdResult(storeData, requestId);
-    int32_t requestId = data.ReadInt32();
-    if (flag == SINGLE_TRANSMIT || flag == MULTI_TRANSMIT_FINISH) {
-        reply.WriteInt32(0);
-        HILOG_DEBUG("infos size %{public}zu, requestId %{public}d", storeElementData.Size(), requestId);
-        SetSearchElementInfoByAccessibilityIdResult(storeElementData.ReadData(), requestId);
-        return NO_ERROR;
-    }
-
-    reply.WriteInt32(0);
     return NO_ERROR;
 }