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oss从内存上传图片的sample是错的...

hope to support socket API ,because our requirement is that the log files of nginx be stored directly on oss,Is there an API for that

class membuf : public std::streambuf {
public:
membuf(char* p, size_t n) {
setg(p, p, p + n);
}
};

auto buf = new membuf(new char[n], n);
auto content = std::make_sharedstd::iostream(buf);
AlibabaCloud::OSS::PutObjectRequest request(BucketName, Key, content);
client.PutObject(request);

返回的信息是code:ParseXMLError，msg:XML_ERROR_MISMATCHED_ELEMENT

我尝试直接用stringstream上传字符串是正常的，但是不知道这个二进制上传哪里出的问题

socket 编程可以指定网卡，我有eth0, eth1 两个网卡，想要指定eth1, 此sdk 上层函数有没有指定网口的功能

之前在ue4.21里面运行是偶尔崩溃，ue4.24里面运行不了，一开就崩溃。不知道有无人试过在unrealengine 4里面用？

你好 我是需要用Qt开发项目在windows环境中，mingw的版本为7.3.0 64位，请问怎么利用cmake在windows下利用mingw编译源码？利用VS编译我已经弄好了，现在需要用mingw编译，谢谢指导

看到 C 语言版本的 OSS SDK 已经加入到 vcpkg ports 里了，有计划将 C++ 版本加入吗？
另外不直接将依赖库包含在工程中是不是更利于用户集成（可以对库版本有一定要求）？用户可以通过 vcpkg 等工具自己管理依赖库。

谢谢！

因上层调用需要判断http的状态码，能否在OssErrror类中 增加该变量，谢谢。

GetObjectRequest request(BucketName, ObjectName);
auto outcome = client.GetObject(request);
if (outcome.isSuccess()) {
std::cout << "getObjectToBuffer" << " success, Content-Length:" << outcome.result().Metadata().ContentLength() << std::endl;
/打印下载内容/
std::string content;
*(outcome.result().Content()) >> content;
std::cout << "getObjectToBuffer" << "content:" << content << std::endl;
}
else {
/异常处理/
std::cout << "getObjectToBuffer fail" <<
",code:" << outcome.error().Code() <<
",message:" << outcome.error().Message() <<
",requestId:" << outcome.error().RequestId() << std::endl;
ShutdownSdk();
return -1;
}

*(outcome.result().Content()) >> content;content中的内容很可能不全，如果有换行符之类的

可以给一个使用线程池进行异步上传文件的demo吗

项目组统一开发环境在msys2(https://www.msys2.org )下面，尝试使用mingw64-gcc编译时出错。

1. gcc版本(9.2.0)
   gcc -v结果如下：
   Using built-in specs.
   COLLECT_GCC=C:\msys64\mingw64\bin\gcc.exe
   COLLECT_LTO_WRAPPER=C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/9.2.0/lto-wrapper.exe
   Target: x86_64-w64-mingw32
   Configured with: ../gcc-9.2.0/configure --prefix=/mingw64 --with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32 --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include --libexecdir=/mingw64/lib --enable-bootstrap --with-arch=x86-64 --with-tune=generic --enable-languages=c,lto,c++,fortran,ada,objc,obj-c++ --enable-shared --enable-static --enable-libatomic --enable-threads=posix --enable-graphite --enable-fully-dynamic-string --enable-libstdcxx-filesystem-ts=yes --enable-libstdcxx-time=yes --disable-libstdcxx-pch --disable-libstdcxx-debug --disable-isl-version-check --enable-lto --enable-libgomp --disable-multilib --enable-checking=release --disable-rpath --disable-win32-registry --disable-nls --disable-werror --disable-symvers --enable-plugin --with-libiconv --with-system-zlib --with-gmp=/mingw64 --with-mpfr=/mingw64 --with-mpc=/mingw64 --with-isl=/mingw64 --with-pkgversion='Rev2, Built by MSYS2 project' --with-bugurl=https://sourceforge.net/projects/msys2 --with-gnu-as --with-gnu-ld
   Thread model: posix
   gcc version 9.2.0 (Rev2, Built by MSYS2 project)

2. Windows版本

C:\Users\Spring>systeminfo

Host Name:                 DESKTOP-NDNVDO9
OS Name:                   Microsoft Windows 10 Pro
OS Version:                10.0.18363 N/A Build 18363
OS Manufacturer:           Microsoft Corporation
OS Configuration:          Standalone Workstation
OS Build Type:             Multiprocessor Free
Registered Owner:          Spring
Registered Organization:   N/A
Product ID:                00330-80000-00000-AA870
Original Install Date:     12/19/2019, 9:43:32 AM
System Boot Time:          2/3/2020, 9:43:58 AM
System Manufacturer:       ASUS
System Model:              All Series
System Type:               x64-based PC
Processor(s):              1 Processor(s) Installed.
                           [01]: Intel64 Family 6 Model 60 Stepping 3 GenuineIntel ~3401 Mhz
BIOS Version:              American Megatrends Inc. 1802, 1/28/2014
Windows Directory:         C:\Windows
System Directory:          C:\Windows\system32
Boot Device:               \Device\HarddiskVolume3
System Locale:             zh-cn;Chinese (China)
Input Locale:              en-us;English (United States)
Time Zone:                 (UTC+08:00) Beijing, Chongqing, Hong Kong, Urumqi
Total Physical Memory:     16,255 MB
Available Physical Memory: 7,219 MB
Virtual Memory: Max Size:  22,872 MB
Virtual Memory: Available: 10,486 MB
Virtual Memory: In Use:    12,386 MB
Page File Location(s):     C:\pagefile.sys
Domain:                    WORKGROUP
Logon Server:              \\DESKTOP-NDNVDO9

3. 编译过程

mkdir build && cd build
cmake ../aliyun-oss-cpp-sdk-1.7.0 -G "Unix Makefiles"
make

4. 出错日志截图
   

5. 特殊说明
   测试过vs2017编译和linux下的gcc7.4编译均正常。

一个oss-cpp-sdk.a文件，在测试demo上传图片正常。
但是在实际项目中上传图片 上传图片失败,返回的错误： PutObject fail with msg Timeout wasreached
比较代码，demo是在主线程中上传的，实际项目中是在子线程中上传的
请告知下 后续可以怎么排查

mac下，生成dylib后，链接到程序提示链接不到符号，看了下符号表

没办法，改了

#if !defined(ALIBABACLOUD_DECL_EXPORT)
#   define ALIBABACLOUD_DECL_EXPORT __attribute__((visibility("default")))
#endif

而后，符号可见

if(CMAKE_HOST_UNIX) 确定在mac下这里不会跑偏到“LINUX”？？？
		set(PLATFORM_LINUX 1)
		set(TARGET_OS "LINUX")
	elseif(CMAKE_HOST_WIN32)
		set(PLATFORM_WINDOWS 1)
		set(TARGET_OS "WINDOWS")
	elseif(CMAKE_HOST_APPLE)
		set(PLATFORM_APPLE 1)
		set(TARGET_OS "APPLE")
	else()
		message(FATAL_ERROR "Do not support unknown host OS")
	endif()

我在 ubunt 16.04 系统下按照官方的指导，下载 oss 源码，编译，安装后（均无报错），再使用官方的示例代码，在编译的时候，libalibabacloud-oss-cpp-sdk.a 找不到 curl 相关函数的定义，检测 sdk 目录下的 CMakeLists.txt 文件，发现只有当 BUILD_SHARED_LIBS 开关打开后才会将 curl 相关的库链接进去，而 BUILD_SHARED_LIBS 开关在主目录下的 CMakeLists.txt 中默认是关闭的。

所以，要么在 cmake 的时候打开 BUILD_SHARED_LIBS ，要么在 CMakeLists.txt 中默认将 BUILD_SHARED_LIBS 打开。

OssClient 是一个指向实现 OssClientImpl 的类，其实现通过委托构造函数，最终在一个构造函数内 new OssClientImpl(...)，在析构函数中 delete client_。这并 没有阻止用户对 OssClient 的对象进行拷贝，如果用户这么做是危险的。

比如现在我就遇到了该问题，我想拆分 OssClient 函数集，让用户面向资源的方式去操作，所以让 OssClient 做为配置选项传递资源管理器就撞上了。

class COssClient final
{
private:
   AlibabaCloud::OSS::OssClient proxy_;
};

class COssObject
{
  explicit COssObject(COssClient const& oss_client) : oss_client_(oss_client) {}
private:
  COssClient oss_client_;
};

class COssUpload : public COssObject
{
};

现象

使用分片传输，在多线程情况下，PartList 无法保证分片序号按非降序排列，在进行分片重组校验时(即 CompleteMultipartUpload)，返回 InvalidPartOrder。

问题

class ALIBABACLOUD_OSS_EXPORT CompleteMultipartUploadRequest
    : public OssObjectRequest
{
public:
	CompleteMultipartUploadRequest(const std::string& bucket
		, const std::string& key);
	CompleteMultipartUploadRequest(const std::string& bucket
		, const std::string& key
		, const PartList& partList);
	CompleteMultipartUploadRequest(const std::string& bucket
		, const std::string& key
		, const PartList& partList
		, const std::string& uploadId);
	// ...
};

在 CompleteMultipartUploadRequest 中未对分片序号排列进行检查校正，同时，服务端也没有对此进行处理，直接返回 InvalidPartOrder。

解决

• [推荐] 在服务端检测到序号排列不正确时，直接纠正，避免返回错误让用户搜寻错误原因。
• 在 CompleteMultipartUploadRequest 进行检测，替用户纠正排列顺序。

PutObject fail,code:InvalidArgument,message:The characters encoding must be utf-8

目标安卓打包出来的静态库是目标Mac打出来的5倍大，解压静态库取出相同一个.o对比，elf 格式比 mach-o 大5倍

在Mac 上打包，采用Mac 系统打包方式

cmake -DOPENSSL_ROOT_DIR=/usr/local/Cellar/[email protected]/1.1.1g
-DOPENSSL_LIBRARIES=/usr/local/Cellar/[email protected]/1.1.1g/lib
-DOPENSSL_INCLUDE_DIRS=/usr/local/Cellar/[email protected]/1.1.1g/include/ ..
make

打包出来19MB

给安卓打包

cmake -DCMAKE_TOOLCHAIN_FILE=$ANDROID_NDK/build/cmake/android.toolchain.cmake
-DANDROID_NDK=$ANDROID_NDK
-DANDROID_ABI=arm64-v8a
-DANDROID_TOOLCHAIN=clang
-DANDROID_PLATFORM=android-23
-DANDROID_STL=c++_shared ..
make

打包出来有104MB，用gstrip 去掉debug info之后还有46MB

我使用了oss-cpp 1.1.0版本的代码，然后依赖的openssl是1.1.0版本，依赖的curl是7.55.1版本，在中标麒麟系统上运行时提示：/usr/lib64/libc.so.6: version `GLIBC_2.25' not found

下载过程中，由于网络信号弱，或者不想继续等待下载了，请问可否取消下载，等下次有时间了再下载。

因为要做一个插件，希望把openssl转成静态库，避免手动导入Dll文件。
编译过程是没问题的，分别编译出libeay32.lib（13MB）和ssleay32.lib（2MB），单独测试也是成功的。OpenSSL的版本是1.0.2p。
但是替换了lib为静态库后，我在程序目录删除libeay32.dll和sslyea32.dll，运行时提示未找到LIBEAY.DLL。
请教是否oss的sdk本身不支持这样使用openssl静态库的操作。
谢谢

sdk 1.4.0版本 CurlHttpClient.cc(518行)
ss << proxyScheme_ << "://" << proxyHost_;
proxyScheme_是一个枚举型，std::stringstream默认识别为整型，导致ss的结果是0://10.10.10.10
修正：
ss << OSS::Http::SchemeToString(proxyScheme_) << "://" << proxyHost_;
修改验证结果可行。

请问出现200006是什么情况？

RT 带有中文名字的文件传不上去，显示参数非法

现在我们使用的是aliyun-oss-c-sdk
这个repo是oss sdk的cpp版本，但并没有在阿里云SDK 文档简介中看到相关说明，希望确认两个问题：

1. 功能是否完善
2. 是否可以在线上进行使用

谢谢

aliyun-oss-cpp-sdk/sdk/src/utils/FileSystemUtils.cc:125:30: error: cannot bind non-const lvalue reference of type ‘time_t&’ {aka ‘long int&’} to an rvalue of type ‘time_t’ {aka ‘long int’}
return GetPathInfo(file, size,t);

fix patch
--- a/sdk/src/utils/FileSystemUtils.cc
+++ b/sdk/src/utils/FileSystemUtils.cc
@@ -121,7 +121,7 @@ bool AlibabaCloud::OSS::IsFileExist(const std::string& file)
{
std::streamsize size;
time_t t;

• return GetPathInfo(file, size, t);

• return GetPathInfo(file, t,size);^M
  }

以下是崩溃的堆栈信息

1 #00 pc 0004a988 /system/lib/libc.so (tgkill+12) [armeabi-v7a]
2 #1 pc 0004806b /system/lib/libc.so (pthread_kill+34) [armeabi-v7a]
3 #2 pc 0001dacd /system/lib/libc.so (raise+10) [armeabi-v7a]
4 #3 pc 000194c5 /system/lib/libc.so (__libc_android_abort+34) [armeabi-v7a]
5 #4 pc 00017520 /system/lib/libc.so (abort+4) [armeabi-v7a]
6 #5 pc 012d5e8f /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so (Json::Value::asInt() const+210) [armeabi-v7a]
7 #6 pc 012d5b1b /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so (Json::CharReaderBuilder::newCharReader() const+118) [armeabi-v7a]
8 #7 pc 012d7111 /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so (Json::parseFromStream(Json::CharReader::Factory const&, std::__ndk1::basic_istream<char, std::__ndk1::char_traits >&, Json::Value*, std::__ndk1::basic_string<char, std::__ndk1::char_traits, std::__ndk1::allocator >)+224) [armeabi-v7a]
9 #8 pc 0130b3eb /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so (AlibabaCloud::OSS::ResumableUploader::loadRecord()+214) [armeabi-v7a]
10 #9 pc 012ffa3d /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so (AlibabaCloud::OSS::ResumableBaseWorker::validate(AlibabaCloud::OSS::OssError&)+84) [armeabi-v7a]
11 #10 pc 01309623 /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so (AlibabaCloud::OSS::ResumableUploader::Upload()+42) [armeabi-v7a]
12 #11 pc 012fb809 /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so (AlibabaCloud::OSS::OssClientImpl::ResumableUploadObject(AlibabaCloud::OSS::UploadObjectRequest const&) const+260) [armeabi-v7a]
13 #12 pc 012ec8ad /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so (AlibabaCloud::OSS::OssClient::ResumableUploadObject(AlibabaCloud::OSS::UploadObjectRequest const&) const+8) [armeabi-v7a]
14 #13 pc 00af4f49 /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so (ljUploadCache::uploadFileItem(ljUploadResourceFileItem, char const*, char const*, char const*)+1000) [armeabi-v7a]
15 #14 pc 00af47e9 /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so (ljUploadCache::uploadFile(ljUploadResourceFileItem*)+126) [armeabi-v7a]
16 #15 pc 00af4699 /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so (ljUploadCache::threadFunc(bool)+64) [armeabi-v7a]
17 #16 pc 00af4641 /data/app/com.lj.ljshell-1/lib/arm/libcocos2dcpp.so [armeabi-v7a]
18 #17 pc 00047b3f /system/lib/libc.so (__pthread_start(void*)+22) [armeabi-v7a]
19 #18 pc 00019f21 /system/lib/libc.so (__start_thread+6) [armeabi-v7a]

可以用这个链接提供的文件进行测试

编译32位无错，32位库写文档中的例子也无错
只有编译64位有错，是否不支持64位？

cmake 生成64位解决方案
然后运行：msbuild ALL_BUILD.vcxproj

1. 自带的sample 编译出错
2. 复制文档里的代码新建一个工程编译也出相应的错误

"D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\ALL_BUILD.vcxproj" (default target
) (1) ->
"D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sample.vcxproj" (de
fault target) (4) ->
(Link target) ->
alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: unresolved external symbol __imp_curl_global_init
referenced in function "public: static void __cdecl AlibabaCloud::OSS::CurlHttpClient::initGlobalState(void)" (?initGl
obalState@CurlHttpClient@OSS@AlibabaCloud@@SAXXZ) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk
-master\build64\sample\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: unresolved external symbol __imp_curl_global_clean
up referenced in function "public: static void __cdecl AlibabaCloud::OSS::CurlHttpClient::cleanupGlobalState(void)" (?
cleanupGlobalState@CurlHttpClient@OSS@AlibabaCloud@@SAXXZ) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-os
s-cpp-sdk-master\build64\sample\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: unresolved external symbol __imp_curl_slist_append
referenced in function "public: virtual class std::shared_ptr __cdecl AlibabaC
loud::OSS::CurlHttpClient::makeRequest(class std::shared_ptr const &)" (?makeReq
uest@CurlHttpClient@OSS@AlibabaCloud@@UEAA?AV?$shared_ptr@VHttpResponse@OSS@AlibabaCloud@@@std@@aebv?$shared_ptr@VHttp
Request@OSS@AlibabaCloud@@@5@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\s
ample\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: unresolved external symbol __imp_curl_slist_free_a
ll referenced in function "public: virtual class std::shared_ptr __cdecl Alibab
aCloud::OSS::CurlHttpClient::makeRequest(class std::shared_ptr const &)" (?makeR
equest@CurlHttpClient@OSS@AlibabaCloud@@UEAA?AV?$shared_ptr@VHttpResponse@OSS@AlibabaCloud@@@std@@aebv?$shared_ptr@VHt
tpRequest@OSS@AlibabaCloud@@@5@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64
\sample\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: unresolved external symbol __imp_curl_easy_strerro
r referenced in function "public: virtual class std::shared_ptr __cdecl Alibaba
Cloud::OSS::CurlHttpClient::makeRequest(class std::shared_ptr const &)" (?makeRe
quest@CurlHttpClient@OSS@AlibabaCloud@@UEAA?AV?$shared_ptr@VHttpResponse@OSS@AlibabaCloud@@@std@@aebv?$shared_ptr@VHtt
pRequest@OSS@AlibabaCloud@@@5@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64
sample\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: unresolved external symbol __imp_curl_easy_init re
ferenced in function "private: bool __cdecl AlibabaCloud::OSS::CurlContainer::growPool(void)" (?growPool@CurlContainer
@oss@AlibabaCloud@@AEAA_NXZ) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sampl
e\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: unresolved external symbol __imp_curl_easy_setopt
referenced in function "public: virtual class std::shared_ptr __cdecl AlibabaCl
oud::OSS::CurlHttpClient::makeRequest(class std::shared_ptr const &)" (?makeRequ
est@CurlHttpClient@OSS@AlibabaCloud@@UEAA?AV?$shared_ptr@VHttpResponse@OSS@AlibabaCloud@@@std@@aebv?$shared_ptr@VHttpR
equest@OSS@AlibabaCloud@@@5@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sa
mple\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: unresolved external symbol __imp_curl_easy_perform
referenced in function "public: virtual class std::shared_ptr __cdecl AlibabaC
loud::OSS::CurlHttpClient::makeRequest(class std::shared_ptr const &)" (?makeReq
uest@CurlHttpClient@OSS@AlibabaCloud@@UEAA?AV?$shared_ptr@VHttpResponse@OSS@AlibabaCloud@@@std@@aebv?$shared_ptr@VHttp
Request@OSS@AlibabaCloud@@@5@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\s
ample\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: unresolved external symbol __imp_curl_easy_cleanup
referenced in function "public: __cdecl AlibabaCloud::OSS::CurlContainer::~CurlContainer(void)" (??1CurlContainer@OSS
@AlibabaCloud@@qeaa@XZ) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp
-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: unresolved external symbol __imp_curl_easy_getinfo
referenced in function "public: virtual class std::shared_ptr __cdecl AlibabaC
loud::OSS::CurlHttpClient::makeRequest(class std::shared_ptr const &)" (?makeReq
uest@CurlHttpClient@OSS@AlibabaCloud@@UEAA?AV?$shared_ptr@VHttpResponse@OSS@AlibabaCloud@@@std@@aebv?$shared_ptr@VHttp
Request@OSS@AlibabaCloud@@@5@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\s
ample\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: unresolved external symbol __imp_curl_easy_reset r
eferenced in function "public: virtual class std::shared_ptr __cdecl AlibabaClo
ud::OSS::CurlHttpClient::makeRequest(class std::shared_ptr const &)" (?makeReque
st@CurlHttpClient@OSS@AlibabaCloud@@UEAA?AV?$shared_ptr@VHttpResponse@OSS@AlibabaCloud@@@std@@aebv?$shared_ptr@VHttpRe
quest@OSS@AlibabaCloud@@@5@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sam
ple\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(Utils.obj) : error LNK2019: unresolved external symbol EVP_MD_CTX_init referenced in fu
nction "class std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl AlibabaCloud::
OSS::ComputeContentETag(class std::basic_istream<char,struct std::char_traits > &)" (?ComputeContentETag@OSS@Ali
babaCloud@@ya?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@aeav?$basic_istream@DU?$char_traits@D@std
@@@4@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sample.vcx
proj]
alibabacloud-oss-cpp-sdk.lib(Utils.obj) : error LNK2019: unresolved external symbol EVP_MD_CTX_create referenced in
function "class std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl AlibabaCloud
::OSS::ComputeContentETag(class std::basic_istream<char,struct std::char_traits > &)" (?ComputeContentETag@OSS@A
libabaCloud@@ya?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@aeav?$basic_istream@DU?$char_traits@D@s
td@@@4@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sample.v
cxproj]
alibabacloud-oss-cpp-sdk.lib(Utils.obj) : error LNK2019: unresolved external symbol EVP_MD_CTX_destroy referenced in
function "class std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl AlibabaClou
d::OSS::ComputeContentETag(class std::basic_istream<char,struct std::char_traits > &)" (?ComputeContentETag@OSS@
AlibabaCloud@@ya?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@aeav?$basic_istream@DU?$char_traits@D@
std@@@4@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sample.
vcxproj]
alibabacloud-oss-cpp-sdk.lib(Utils.obj) : error LNK2019: unresolved external symbol EVP_MD_CTX_set_flags referenced
in function "class std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl AlibabaCl
oud::OSS::ComputeContentETag(class std::basic_istream<char,struct std::char_traits > &)" (?ComputeContentETag@OS
S@AlibabaCloud@@ya?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@aeav?$basic_istream@DU?$char_traits@
D@std@@@4@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sampl
e.vcxproj]
alibabacloud-oss-cpp-sdk.lib(Utils.obj) : error LNK2019: unresolved external symbol EVP_DigestInit_ex referenced in
function "class std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl AlibabaCloud
::OSS::ComputeContentETag(class std::basic_istream<char,struct std::char_traits > &)" (?ComputeContentETag@OSS@A
libabaCloud@@ya?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@aeav?$basic_istream@DU?$char_traits@D@s
td@@@4@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sample.v
cxproj]
alibabacloud-oss-cpp-sdk.lib(Utils.obj) : error LNK2019: unresolved external symbol EVP_DigestUpdate referenced in f
unction "class std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl AlibabaCloud:
:OSS::ComputeContentETag(class std::basic_istream<char,struct std::char_traits > &)" (?ComputeContentETag@OSS@Al
ibabaCloud@@ya?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@aeav?$basic_istream@DU?$char_traits@D@st
d@@@4@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sample.vc
xproj]
alibabacloud-oss-cpp-sdk.lib(Utils.obj) : error LNK2019: unresolved external symbol EVP_DigestFinal_ex referenced in
function "class std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl AlibabaClou
d::OSS::ComputeContentETag(class std::basic_istream<char,struct std::char_traits > &)" (?ComputeContentETag@OSS@
AlibabaCloud@@ya?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@aeav?$basic_istream@DU?$char_traits@D@
std@@@4@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sample.
vcxproj]
alibabacloud-oss-cpp-sdk.lib(Utils.obj) : error LNK2019: unresolved external symbol EVP_EncodeBlock referenced in fu
nction "class std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl AlibabaCloud::
OSS::ComputeContentMD5(class std::basic_istream<char,struct std::char_traits > &)" (?ComputeContentMD5@OSS@Aliba
baCloud@@ya?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@aeav?$basic_istream@DU?$char_traits@D@std@@
@4@@z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sample.vcxpr
oj]
alibabacloud-oss-cpp-sdk.lib(HmacSha1Signer.obj) : error LNK2001: unresolved external symbol EVP_EncodeBlock [D:\mai
qi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(Utils.obj) : error LNK2019: unresolved external symbol EVP_md5 referenced in function "
class std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl AlibabaCloud::OSS::Com
puteContentETag(class std::basic_istream<char,struct std::char_traits > &)" (?ComputeContentETag@OSS@AlibabaClou
d@@ya?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@aeav?$basic_istream@DU?$char_traits@D@std@@@4@@z)
[D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(Utils.obj) : error LNK2019: unresolved external symbol MD5 referenced in function "clas
s std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl AlibabaCloud::OSS::Compute
ContentETag(char const *,unsigned __int64)" (?ComputeContentETag@OSS@AlibabaCloud@@ya?AV?$basic_string@DU?$char_traits
@d@std@@v?$allocator@D@2@@std@@PEBD_K@Z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\b
uild64\sample\cpp-sdk-sample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(HmacSha1Signer.obj) : error LNK2019: unresolved external symbol EVP_sha1 referenced in
function "public: virtual class std::basic_string<char,struct std::char_traits,class std::allocator > __cd
ecl AlibabaCloud::OSS::HmacSha1Signer::generate(class std::basic_string<char,struct std::char_traits,class std::
allocator > const &,class std::basic_string<char,struct std::char_traits,class std::allocator > cons
t &)const " (?generate@HmacSha1Signer@OSS@AlibabaCloud@@ueba?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@
@std@@AEBV45@0@Z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-s
ample.vcxproj]
alibabacloud-oss-cpp-sdk.lib(HmacSha1Signer.obj) : error LNK2019: unresolved external symbol HMAC referenced in func
tion "public: virtual class std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl
AlibabaCloud::OSS::HmacSha1Signer::generate(class std::basic_string<char,struct std::char_traits,class std::allo
cator > const &,class std::basic_string<char,struct std::char_traits,class std::allocator > const &)
const " (?generate@HmacSha1Signer@OSS@AlibabaCloud@@ueba?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std
@@AEBV45@0@Z) [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\cpp-sdk-sampl
e.vcxproj]
D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-master\build64\sample\Release\cpp-sdk-sample.exe
: fatal error LNK1120: 23 unresolved externals [D:\maiqi\thirdPart\OSS\aliyun-oss-cpp-sdk-master\aliyun-oss-cpp-sdk-m
aster\build64\sample\cpp-sdk-sample.vcxproj]

12 Warning(s)
25 Error(s)

GetObjectRequest request(BucketName, ObjectName);
auto outcome = client.GetObject(request);
if (outcome.isSuccess()) {
std::cout << "getObjectToBuffer" << " success, Content-Length:" << outcome.result().Metadata().ContentLength() << std::endl;
/打印下载内容/
std::string content;
*(outcome.result().Content()) >> content;
std::cout << "getObjectToBuffer" << "content:" << content << std::endl;
}

this example only suit to files,but how to download a pic into memory?

alibabacloud-oss-cpp-sdk.lib(Utils.obj) : error LNK2019: 无法解析的外部符号 EVP_MD_CTX_init，该符号在函数 "class std::basic_string<char,struct std::char_traits,class std::allocator > __cdecl AlibabaCloud::OSS::ComputeContentMD5(class std::basic_istream<char,struct std::char_traits > &)" (?ComputeContentMD5@OSS@AlibabaCloud@@ya?AV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@aeav?$basic_istream@DU?$char_traits@D@std@@@4@@z) 中被引用

alibabacloud-oss-cpp-sdk.lib(CurlHttpClient.obj) : error LNK2019: 无法解析的外部符号 __imp_curl_global_init，该符号在函数 "public: static void __cdecl AlibabaCloud::OSS::CurlHttpClient::initGlobalState(void)" (?initGlobalState@CurlHttpClient@OSS@AlibabaCloud@@SAXXZ) 中被引用

Windows
Enter build folder, open alibabacloud-oss-cpp-sdk.sln with Visual Studio.

"PutObject fail, code ClientError:200052, message Server returned nothing (no headers, no data), requestId:"

在Mac 10.15 catalina，使用OpenlSSL 1.0.2p打包静态库libalibabacloud-oss-cpp-sdk.a(15.7M)

其中有个方法：
bool OSSdeleteObject(const std::string& accessKeyId, const std::string& accessKeySecret, const std::string& endpoint, const std::string& bucketName, const std::string& objName) {
std::string ObjectName = objName;

InitializeSdk();

ClientConfiguration conf;
OssClient client(endpoint, accessKeyId, accessKeySecret, conf);

DeleteObjectRequest request(bucketName, ObjectName);

auto outcome = client.DeleteObject(request);

if (!outcome.isSuccess()) {
	std::cout << "DeleteObject fail" <<
		",code:" << outcome.error().Code() <<
		",message:" << outcome.error().Message() <<
		",requestId:" << outcome.error().RequestId() << std::endl;
	ShutdownSdk();
	return false;
}

ShutdownSdk();
return true;

}

在编译案例时（已导入libcrypto.a, libcurl.a, libssl.a)，遇到linker错误：
Undefined symbols for architecture x86_64:
"typeinfo for AlibabaCloud::OSS::OssObjectRequest", referenced from:
typeinfo for AlibabaCloud::OSS::DeleteObjectRequest in YEEOss.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

注释掉删除Object方法中的：
DeleteObjectRequest request(bucketName, ObjectName);

编辑正常，upload，download功能都没问题。

请教是在哪个环节可能出现错误？谢谢

官方例子中并没有多线程下使用的最佳实践。请问多线程下是一个线程使用一个Client；还是多个线程可以使用同一个Client实例，不需要加锁？还是有其他更好的实现？

获取存储对象当 设置请求范围 时，返回 Failure when receiving data from the peer，示例如下：

bool COssDownload::DownloadPart(int iPartNumber
    , std::shared_ptr<std::iostream>& rpiosContent
    , std::int64_t& ri64ContentLength
    , COssError& rError)
{
    GetObjectRequest request(GetBucket(), GetKey());

    std::int64_t const ki64Start = (iPartNumber - 1) * GetPartSize();
    std::int64_t const ki64Amt = GetContentLength() - ki64Start;
    std::int64_t const ki64End = ki64Start + (GetPartSize() < ki64Amt ? GetPartSize() : ki64Amt);
    request.setRange(ki64Start, ki64End);  // FAILED
    request.setResponseStreamFactory([&rpiosContent]() { return rpiosContent;  });

    auto res = GetProxy()->GetObject(request);
    if (res.isSuccess())
    {
        return true;
    }
    rError = res.error();
    return false;
}

• 不调用 setRange 可正常返回结果。
• 环境: Windows 7 + VS2015
• 区域: oss-cn-shenzhen

libCurl更新成7.67版本后，重新编译成果物，上传图片直接超时

运行在xp sp3，oss-cpp-sdk静态编译，支持v140_xp方式编译，调用ResumableUploadObject时，报错如下：
error_code:ValidateError, error_msg:Open upload file failed., request_id:, host:
在调用ResumableUploadObject之前检查过文件存在且对文件具备读写权限，win10下正常运行

当最后一个part快下载完成时退出系统调用disableRequest，最后一个part下载完成后返回ClientError:100002", "Disable all requests by upper. 下次进入系统后读取上次的下载记录， 因为所有的part都已经下载完成partsToDownload会是空，不会产生请求， 在执行auto meta = outcomes[0].result().Metadata();会崩溃

报错" error LNK2019: 无法解析的外部符号 "public: class AlibabaCloud::OSS::Outcome<class AlibabaCloud::OSS::OssError,class AlibabaCloud::OSS::GetObjectResult> __cdecl AlibabaCloud::OSS::OssClient::GetObjectW(class AlibabaCloud::OSS::GetObjectRequest const &)const " (?GetObjectW@OssClient@OSS@AlibabaCloud@@qeba?AV?$Outcome@VOssError@OSS@AlibabaCloud@@VGetObjectResult@23@@23@AEBVGetObjectRequest@23@@z)，该符号在函数 "int __cdecl AliYunOssDownLoadFile(class std::basic_string<char,struct std::char_traits,class std::allocator > const &,class std::basic_string<char,struct std::char_traits,class std::allocator > &)" (?AliYunOssDownLoadFile@@YAHAEBV?$basic_string@DU?$char_traits@D@std@@v?$allocator@D@2@@std@@AEAV12@@z) 中被引用"，请问怎么解决

1. 我已经按下面那个链接安装SDK了
   https://help.aliyun.com/document_detail/106216.html?spm=a2c4g.11186623.6.990.331374ceuGQKjr
2. 现在到下一步，快速入门这步，我本地新建了一个MacOS app，怎么把阿里云oss代码引入我本地项目中，现在到这步就不会了，求教 @alibaba-oss @huiguangjun
   

Hi,
I have downloaded the Alibaba C++ SDK and trying to generate code using cmake generate command and getting error "CMake Error at /CMakeLists.txt:8 (compileAsC99):
Unknown CMake command "compileAsC99"." please let me know if this is known error.

在Mac OS上按照SDK的说明进行编译安装，文件能够上传OSS成功，但是等程序退出释放资源时，发生奔溃，异常日志如上，经过测试排除，确认是ClientConfiguration对象在析构是奔溃了，不知道该如何解决。
Windows版本无问题。

提供的有关上传数据的接口参数为 std::shared_ptr<std::iostream>，如果遇上传的数据来源于程序产生，那么使用如下方式解决：

using byte_t = unsigned char;

bool COssUpload::UploadPart(int iPartNumber
                          , byte_t const* pkbyContent
                          , std::uint64_t ui64ContentLength
                          , COssError& rError)
{
    std::string const kstrContent((char*)pkbyContent
                                , static_cast<std::string::size_type>(ui64ContentLength));
    std::shared_ptr<std::iostream> piosContent = std::make_shared<std::stringstream>
                                               ( kstrContent
                                               , std::ios::in|std::ios::binary);
    return UploadPart(iPartNumber, piosContent, ui64ContentLength, rError);
}

示例中，存在损耗性能的方面：

• 构建 std::string const kstrContent
  将裸数据构建 std::string 动态分配内存空间。

• 构建 std::stringstream 对象
  从 std::string 构建 std::stringstream 将导致 std::string_buf 通过 std::allocator 再次动态分配内存。

• 智能指针的引用管理
  对于一个大的文件循环上传分片，由 std::shared_ptr 不断的引用管理，存在一定的计算。

可见，一块内存数据被反复折腾，而不是以较少代价的方式被处理。

In multipart upload api, why no async Initiate, Abort, Complete ?