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Commit 5f88ac5c authored by Peng Xu's avatar Peng Xu
Browse files

Added implementation of shared memory NDK API 

Implemeneted the following APIs:

*  int ASharedMemory_create(const char *name, size_t size);
*  size_t ASharedMemory_getSize(int fd);
*  int ASharedMemory_setProt(int fd, int prot);

Test: cts-tradefed run cts --module CtsSensorTestCases \
      --test android.hardware.cts.SensorNativeTest
Bug: 5995644, 30985702

Change-Id: I645b35e67293673efce9bb90f042ec0d3b83aa42
parent a722a2ea

native/android/Android.mk

+1 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ LOCAL_SRC_FILES:= \ 
    net.c \

    obb.cpp \

    sensor.cpp \

    sharedmem.cpp \

    storage_manager.cpp \

    trace.cpp \

native/android/libandroid.map.txt

+3 −0
Original line number Diff line number Diff line
@@ -186,6 +186,9 @@ LIBANDROID { 
    ASensor_getType;

    ASensor_getVendor;

    ASensor_isWakeUpSensor; # introduced=21

    ASharedMemory_create; # introduced=26

    ASharedMemory_getSize; # introduced=26

    ASharedMemory_setProt; # introduced=26

    AStorageManager_delete;

    AStorageManager_getMountedObbPath;

    AStorageManager_isObbMounted;

native/android/sharedmem.cpp

0 → 100644
+34 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2017 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#include <android/sharedmem.h>

#include <cutils/ashmem.h>

#include <utils/Errors.h>



int ASharedMemory_create(const char *name, size_t size) {

    if (size == 0) {

        return android::BAD_VALUE;

    }

    return ashmem_create_region(name, size);

}



size_t ASharedMemory_getSize(int fd) {

    return ashmem_valid(fd) ? ashmem_get_size_region(fd) : 0;

}



int ASharedMemory_setProt(int fd, int prot) {

    return ashmem_set_prot_region(fd, prot);

}