+++ b/system/vold/Disk.cpp
@@ -68,6 +68,7 @@ static const unsigned int kMajorBlockScsiP = 135;
static const unsigned int kMajorBlockMmc = 179;
static const unsigned int kMajorBlockExperimentalMin = 240;
static const unsigned int kMajorBlockExperimentalMax = 254;
+static const unsigned int kMajorBlockPcie = 259;
static const char* kGptBasicData = “EBD0A0A2-B9E5-4433-87C0-68B6B72699C7”;
static const char* kGptAndroidMeta = “19A710A2-B3CA-11E4-B026-10604B889DCF”;
@@ -261,6 +262,18 @@ status_t Disk::readMetadata() {
}
break;
}
-
case kMajorBlockPcie: {
-
std::string path(mSysPath + "/device/device/vendor"); -
std::string tmp; -
if (!ReadFileToString(path, &tmp)) { -
PLOG(WARNING) << "Failed to read vendor from " << path; -
return -errno; -
} -
mLabel = tmp; -
break; -
}
default: {
if (isVirtioBlkDevice(majorId)) {
LOG(DEBUG) << "Recognized experimental block major ID " << majorId
@@ -556,6 +569,14 @@ int Disk::getMaxMinors() {
}
return atoi(tmp.c_str());
}
-
case kMajorBlockPcie: {
-
std::string tmp; -
if (!ReadFileToString(kSysfsMmcMaxMinors, &tmp)) { -
LOG(ERROR) << "Failed to read max minors"; -
return -errno; -
} -
return atoi(tmp.c_str()); -
}
default: {
if (isVirtioBlkDevice(majorId)) {
// drivers/block/virtio_blk.c has “#define PART_BITS 4”, so max is
diff --git a/system/vold/Disk.h b/system/vold/Disk.h
index 77ec7df…6662fa4 100644
— a/system/vold/Disk.h
+++ b/system/vold/Disk.h
@@ -52,6 +52,7 @@ public:
kUsb = 1 << 3,
/* Flag that disk is EMMC internal */
kEmmc = 1 << 4,
-
kPcie = 1 << 5,
};
const std::string& getId() { return mId; }
diff --git a/system/vold/VolumeManager.cpp b/system/vold/VolumeManager.cpp
index 5cc60a1…f766c5a 100644
— a/system/vold/VolumeManager.cpp
+++ b/system/vold/VolumeManager.cpp
@@ -302,11 +302,14 @@
《Android学习笔记总结+最新移动架构视频+大厂安卓面试真题+项目实战源码讲义》
【docs.qq.com/doc/DSkNLaERkbnFoS0ZF】 完整资料开源分享
void VolumeManager::handleBlockEvent(NetlinkEvent *evt) {
// emulator-specific; see Disk.cpp for details) devices are SD,
// and that everything else is USB
int flags = source->getFlags();
-
LOG(VERBOSE) << "handleBlockEvent with action kAdd flags" << flags;
if (major == kMajorBlockMmc
|| (android::vold::IsRunningInEmulator()
&& major >= (int) kMajorBlockExperimentalMin
文末
架构师不是天生的，是在项目中磨练起来的，所以，我们学了技术就需要结合项目进行实战训练，那么在Android里面最常用的架构无外乎 MVC，MVP，MVVM，但是这些思想如果和模块化，层次化，组件化混和在一起，那就不是一件那么简单的事了，我们需要一个真正身经百战的架构师才能讲解透彻其中蕴含的深理。
一线互联网Android面试题总结含详解（初级到高级专题）
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一线互联网Android面试题总结含详解（初级到高级专题）
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