解码时造成的crash

[liuzitong123a]

Binder:21540_1(21589)

SIGSEGV(SEGV_MAPERR)
#00 pc 0005f48c /apex/com.android.runtime/lib/bionic/libc.so (__memcpy_base_a55+180) [armeabi-v7a]
#1 pc 000a81d7 /apex/com.android.runtime/lib/bionic/libc.so (fread_unlocked+102) [armeabi-v7a]
#2 pc 000a813f /apex/com.android.runtime/lib/bionic/libc.so (fread+38) [armeabi-v7a]
#3 pc 0002b3fc libdata-reporter.so DecodeData (/Users/lzt/Downloads/DataReporter-master/src/core/base/MiniPBCoder.cpp:193) [armeabi-v7a]
#4 pc 0002ae9c libdata-reporter.so DecodeItem (/Users/lzt/Downloads/DataReporter-master/src/core/base/MiniPBCoder.cpp:31) [armeabi-v7a]
#5 pc 0003cc5c libdata-reporter.so ReadData (/Users/lzt/Downloads/DataReporter-master/src/core/reporter/FileInputStream.cpp:68) [armeabi-v7a]
#6 pc 00030c2c libdata-reporter.so ReadFromFile (/Users/lzt/Downloads/DataReporter-master/src/core/reporter/DataProvider.cpp:114) [armeabi-v7a]
#7 pc 0002f398 libdata-reporter.so ReadData (/Users/lzt/Downloads/DataReporter-master/src/core/reporter/DataProvider.cpp:58) [armeabi-v7a]
#8 pc 0003f238 libdata-reporter.so Report (/Users/lzt/Downloads/DataReporter-master/src/core/reporter/Reporter.cpp:203) [armeabi-v7a]
#9 pc 0004a750 libdata-reporter.so __call<std::__ndk1::__bind<void (future::Reporter::*)(), future::Reporter *> &> (/Users/lzt/android-ndk-r16b/sources/cxx-stl/llvm-libc++/include/functional:2227 [Inline: __mu<future::Reporter , std::__ndk1::tuple<> >]) [armeabi-v7a]
#10 pc 0004a4a8 libdata-reporter.so operator() (/Users/lzt/android-ndk-r16b/sources/cxx-stl/llvm-libc++/include/functional:1562) [armeabi-v7a]
#11 pc 0005740c libdata-reporter.so operator() (/Users/lzt/android-ndk-r16b/sources/cxx-stl/llvm-libc++/include/functional:1924) [armeabi-v7a]
#12 pc 00058194 libdata-reporter.so operator() (/Users/lzt/Downloads/DataReporter-master/src/core/reporter/Reporter.cpp:424) [armeabi-v7a]
#13 pc 00058138 libdata-reporter.so __call<(lambda at /Users/lzt/Downloads/DataReporter-master/src/core/reporter/Reporter.cpp:422:26) &> (/Users/lzt/android-ndk-r16b/sources/cxx-stl/llvm-libc++/include/__functional_base:349 [Inline: forward<(lambda at /Users/lzt/Downloads/DataReporter-master/src/core/reporter/Reporter.cpp:422:26) &>]) [armeabi-v7a]
#14 pc 00057eec libdata-reporter.so operator() (/Users/lzt/android-ndk-r16b/sources/cxx-stl/llvm-libc++/include/functional:1562) [armeabi-v7a]
#15 pc 0005740c libdata-reporter.so operator() (/Users/lzt/android-ndk-r16b/sources/cxx-stl/llvm-libc++/include/functional:1924) [armeabi-v7a]
#16 pc 000624f4 libdata-reporter.so run (/Users/lzt/Downloads/DataReporter-master/src/core/thread/HandlerThread.cpp:89) [armeabi-v7a]
#17 pc 00064ee8 libdata-reporter.so __call<std::__ndk1::__bind<void (WTF::HandlerThread::)(), WTF::HandlerThread *> &> (/Users/lzt/android-ndk-r16b/sources/cxx-stl/llvm-libc++/include/functional:2227 [Inline: __mu<WTF::HandlerThread , std::__ndk1::tuple<> >]) [armeabi-v7a]
#18 pc 00064c60 libdata-reporter.so operator() (/Users/lzt/android-ndk-r16b/sources/cxx-stl/llvm-libc++/include/functional:1562) [armeabi-v7a]
#19 pc 0005740c libdata-reporter.so operator() (/Users/lzt/android-ndk-r16b/sources/cxx-stl/llvm-libc++/include/functional:1924) [armeabi-v7a]
#20 pc 00065060 libdata-reporter.so __thread_proxy<std::__ndk1::tuple<std::__ndk1::unique_ptr<std::__ndk1::__thread_struct, std::__ndk1::default_deletestd::__ndk1::__thread_struct >, std::__ndk1::function<void ()> > > (/Users/lzt/android-ndk-r16b/sources/cxx-stl/llvm-libc++/include/thread:352 [Inline: __thread_execute<std::__ndk1::unique_ptr<std::__ndk1::__thread_struct, std::__ndk1::default_deletestd::__ndk1::__thread_struct >, std::__ndk1::function<void ()>>]) [armeabi-v7a]
#21 pc 000ac4dd /apex/com.android.runtime/lib/bionic/libc.so (__pthread_start(void)+20) [armeabi-v7a]
#22 pc 00062989 /apex/com.android.runtime/lib/bionic/libc.so (__start_thread+30) [armeabi-v7a]

[liuzitong123a]

目前看来编码写入了异常数据造成的现象，出现crash后必须要清除缓存数据

[pengjiangithub]

if (out.data_len != 0) { Buffer data(out.data_len); read_len = fread(data.GetBegin(), 1, data.Length(), fp); }

Buffer::Buffer(size_t length) : m_Ptr(nullptr), m_Size(length), m_IsNoCopy(BufferCopy) { if (m_Size > 0) { m_Ptr = malloc(m_Size); } }

看代码，应该是 out.data_len<0时，空指针了。

[lixiaoyu0123]

麻烦升级最新版本1.4.2， 另外请确认 Application中不存在多进程多次初始化问题，多进程多次使用相同参数初始化，是会出现问题。