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multipart_upload_aws.cpp
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multipart_upload_aws.cpp
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#include <aws/core/Aws.h>
#include <aws/core/client/ClientConfiguration.h>
#include <aws/core/http/Scheme.h>
#include <aws/core/utils/threading/Executor.h>
#include <aws/s3/S3Client.h>
#include <aws/transfer/TransferManager.h>
#include <aws/s3/model/CompleteMultipartUploadRequest.h>
#include <aws/transfer/TransferManager.h>
#include <aws/core/utils/memory/stl/AWSStreamFwd.h>
#include <aws/core/utils/memory/AWSMemory.h>
#include <aws/core/utils/Array.h>
#include <aws/core/auth/AWSCredentialsProviderChain.h>
#include <aws/core/utils/HashingUtils.h>
#include <aws/s3/model/CreateMultipartUploadRequest.h>
#include <string>
#include <iostream>
#include <sstream>
#include <fstream>
#include <thread>
/*#include <aws/core/utils/stream/PreallocatedStreamBuf.h>
#include <aws/core/utils/memory/stl/AWSStringStream.h>
#include <aws/core/platform/FileSystem.h>
#include <aws/s3/S3Client.h>
#include <aws/s3/model/HeadObjectRequest.h>
#include <aws/s3/model/GetObjectRequest.h>
#include <aws/s3/model/ListObjectsV2Request.h>
#include <aws/s3/model/CompleteMultipartUploadRequest.h>
#include <aws/s3/model/AbortMultipartUploadRequest.h>
#include <aws/transfer/TransferHandle.h>*/
using namespace std;
using namespace Aws::S3;
using namespace Aws::S3::Model;
using namespace Aws::Client;
using namespace Aws::Http;
using namespace Aws::Utils;
static const char* const ALLOCATION_TAG = "S3_MULTIPART_TEST";
typedef Aws::Utils::Array<unsigned char> ByteBuffer;
std::shared_ptr<S3Client> createClient() {
ClientConfiguration config;
config.region = Aws::Region::US_EAST_1;
config.scheme = Scheme::HTTPS;
config.connectTimeoutMs = 30000;
config.requestTimeoutMs = 30000;
//config.readRateLimiter = Limiter;
//config.writeRateLimiter = Limiter;
config.executor = Aws::MakeShared<Aws::Utils::Threading::PooledThreadExecutor>(ALLOCATION_TAG, 4);
return Aws::MakeShared<S3Client>(ALLOCATION_TAG,
Aws::MakeShared<Aws::Auth::DefaultAWSCredentialsProviderChain>(ALLOCATION_TAG), config,
AWSAuthV4Signer::PayloadSigningPolicy::Never /*signPayloads*/, true /*useVirtualAddressing*/);
}
size_t string_to_size_t(const std::string& str) {
std::stringstream sstream(str);
size_t result;
sstream >> result;
return result;
}
std::shared_ptr<Aws::StringStream> Create5MbStreamForUploadPart(const char* partTag);
UploadPartOutcomeCallable makeUploadPartOutcomeAndGetCallable(unsigned partNumber, const ByteBuffer& md5OfStream, const std::shared_ptr<Aws::IOStream>& partStream,
const Aws::String& bucketName, const std::string& objectName, const Aws::String& uploadId);
int s3FileWrite(void *_buf, int _len, unsigned int part_number, CompletedPart *completedPart, const Aws::String *bucket_name, std::string *filename, const Aws::String *upload_id);
int main(int argc, char **argv) {
if (argc < 3){
std::cerr << "Usage: multipart_upload <file> <multipart_size in MB>" << std::endl;
return 1;
}
std::string filename = argv[1];
size_t multipart_size = string_to_size_t(argv[2]) * 1024 * 1024;
if (multipart_size < 5 * 1024 * 1024) {
std::cerr << "Minimum multipart size is 5 MB" << std::endl;
return 1;
}
// read input file into buffers
std::vector<unsigned char*> char_buffers;
std::vector<size_t> char_buffer_sizes;
ifstream ifs;
ifs.open(filename, ios::in | ios::binary | ios::ate);
size_t file_size = ifs.tellg();
ifs.seekg(0, ios::beg);
while (ifs.tellg() < file_size) {
size_t current_buffer_size = file_size - ifs.tellg() > multipart_size ? multipart_size : file_size - ifs.tellg();
unsigned char *current_buffer = new unsigned char[current_buffer_size];
ifs.read((char*)(current_buffer), current_buffer_size);
char_buffers.push_back(current_buffer);
char_buffer_sizes.push_back(current_buffer_size);
std::cout << "read " << current_buffer_size << std::endl;
}
ifs.close();
Aws::SDKOptions options;
Aws::InitAPI(options);
std::shared_ptr<S3Client> client = createClient();
Aws::String bucketName = "justinkylejames1";
const char* multipartKeyName = filename.c_str();
// THIS PART IS DONE ONCE AT BEGINNING (s3FileOpen)
CreateMultipartUploadRequest createMultipartUploadRequest;
createMultipartUploadRequest.SetBucket(bucketName);
createMultipartUploadRequest.SetKey(multipartKeyName);
createMultipartUploadRequest.SetContentType("text/plain");
CreateMultipartUploadOutcome createMultipartUploadOutcome = client->CreateMultipartUpload(
createMultipartUploadRequest);
if (!createMultipartUploadOutcome.IsSuccess()) {
std::cerr << "createMultipartUploadOutcome failed" << std::endl;
return 1;
}
Aws::String upload_id = createMultipartUploadOutcome.GetResult().GetUploadId();
printf("%s:%d (%s) done initial part. upload_id=%s\n", __FILE__, __LINE__, __FUNCTION__, upload_id.c_str());
// THIS PART IS DONE FOR EACH THREAD (s3FileWrite)
std::thread *writer_threads = new std::thread[char_buffers.size()];
CompletedPart *completedPart = new CompletedPart[char_buffers.size()];
for (unsigned int part_number = 0; part_number < char_buffers.size(); ++part_number) {
//s3FileWrite(char_buffers[part_number], char_buffer_sizes[part_number], part_number + 1, &completedPart[part_number], &bucketName, &filename, &upload_id);
printf("%s:%d (%s) start thread %d\n", __FILE__, __LINE__, __FUNCTION__, part_number);
writer_threads[part_number] = std::thread(s3FileWrite, char_buffers[part_number], char_buffer_sizes[part_number], part_number + 1, &completedPart[part_number], &bucketName, &filename, &upload_id);
//std::thread t(s3FileWrite, char_buffers[part_number], char_buffer_sizes[part_number], part_number + 1, &completedPart[part_number], &bucketName, &filename, &upload_id);
//t.join();
}
for (unsigned int part_number = 0; part_number < char_buffers.size(); ++part_number) {
writer_threads[part_number].join();
printf("%s:%d (%s) joined thread %d\n", __FILE__, __LINE__, __FUNCTION__, part_number);
}
printf("%s:%d (%s) done parallel part\n", __FILE__, __LINE__, __FUNCTION__);
// THIS PART IS DONE ONCE AT END (s3FileClose)
CompleteMultipartUploadRequest completeMultipartUploadRequest;
completeMultipartUploadRequest.SetBucket(bucketName);
completeMultipartUploadRequest.SetKey(multipartKeyName);
completeMultipartUploadRequest.SetUploadId(createMultipartUploadOutcome.GetResult().GetUploadId());
CompletedMultipartUpload completedMultipartUpload;
for (int i = 0; i < char_buffers.size(); ++i) {
completedMultipartUpload.AddParts(completedPart[i]);
}
completeMultipartUploadRequest.WithMultipartUpload(completedMultipartUpload);
CompleteMultipartUploadOutcome completeMultipartUploadOutcome = client->CompleteMultipartUpload(
completeMultipartUploadRequest);
if (!completeMultipartUploadOutcome.IsSuccess()) {
std::cerr << "completeMultipartUploadOutcome failed" << std::endl;
return 1;
}
// delete allocated memory (TODO change to smart ptr)
for (int i = 0; i < char_buffers.size(); ++i) {
delete[] char_buffers[i];
}
Aws::ShutdownAPI(options);
delete[] completedPart;
delete[] writer_threads;
return 0;
}
int s3FileWrite(void *_buf, int _len, unsigned int part_number, CompletedPart *completedPart, const Aws::String *bucket_name, std::string *filename, const Aws::String *upload_id) {
// create null terminated string from _buf (see if there is another option to avoid copy)
unsigned char *null_terminated_buffer = new unsigned char[_len+1];
memcpy(null_terminated_buffer, _buf, _len);
null_terminated_buffer[_len] = 0;
Aws::String scratchString;
scratchString.reserve(_len+1);
// 5MB is a hard minimum for multi part uploads; make sure the final string is at least that long
scratchString.append( (const char*)null_terminated_buffer );
delete[] null_terminated_buffer;
std::shared_ptr<Aws::StringStream> streamPtr = Aws::MakeShared<Aws::StringStream>(ALLOCATION_TAG, scratchString);
streamPtr->seekg(0);
streamPtr->seekp(0, std::ios_base::end);
ByteBuffer partMd5(HashingUtils::CalculateMD5(*streamPtr));
UploadPartOutcomeCallable uploadPartOutcomeCallable = makeUploadPartOutcomeAndGetCallable(part_number, partMd5, streamPtr, *bucket_name,
*filename, *upload_id);
printf("%s:%d (%s) partNumber=%d\n", __FILE__, __LINE__, __FUNCTION__, part_number);
UploadPartOutcome uploadPartOutcome = uploadPartOutcomeCallable.get(); // delay here
printf("%s:%d (%s) partNumber=%d\n", __FILE__, __LINE__, __FUNCTION__, part_number);
if (!uploadPartOutcome.IsSuccess()) {
std::cerr << "UploadPartOutcome failed" << std::endl;
return 0;
}
completedPart->SetETag(uploadPartOutcome.GetResult().GetETag());
completedPart->SetPartNumber(part_number);
return 1;
}
/*std::shared_ptr<Aws::StringStream> Create5MbStreamForUploadPart(const char* partTag)
{
uint32_t fiveMbSize = 5 * 1024 * 1024;
Aws::StringStream patternStream;
patternStream << "Multi-Part upload Test Part " << partTag << ":" << std::endl;
Aws::String pattern = patternStream.str();
Aws::String scratchString;
scratchString.reserve(fiveMbSize);
// 5MB is a hard minimum for multi part uploads; make sure the final string is at least that long
uint32_t patternCopyCount = static_cast< uint32_t >( fiveMbSize / pattern.size() + 1 );
for(uint32_t i = 0; i < patternCopyCount; ++i)
{
scratchString.append( pattern );
}
std::shared_ptr<Aws::StringStream> streamPtr = Aws::MakeShared<Aws::StringStream>(ALLOCATION_TAG, scratchString);
streamPtr->seekg(0);
streamPtr->seekp(0, std::ios_base::end);
return streamPtr;
}*/
UploadPartOutcomeCallable makeUploadPartOutcomeAndGetCallable(unsigned partNumber, const ByteBuffer& md5OfStream,
const std::shared_ptr<Aws::IOStream>& partStream,
const Aws::String& bucketName, const std::string& objectName, const Aws::String& uploadId)
{
printf("%s:%d (%s) partNumber=%d\n", __FILE__, __LINE__, __FUNCTION__, partNumber);
// Create a client
ClientConfiguration config;
config.region = Aws::Region::US_EAST_1;
config.scheme = Scheme::HTTPS;
config.connectTimeoutMs = 30000;
config.requestTimeoutMs = 30000;
//config.readRateLimiter = Limiter;
//config.writeRateLimiter = Limiter;
config.executor = Aws::MakeShared<Aws::Utils::Threading::PooledThreadExecutor>(ALLOCATION_TAG, 4);
printf("%s:%d (%s) partNumber=%d\n", __FILE__, __LINE__, __FUNCTION__, partNumber);
UploadPartRequest uploadPartRequest;
uploadPartRequest.SetBucket(bucketName);
uploadPartRequest.SetKey(objectName.c_str());
uploadPartRequest.SetPartNumber(partNumber);
uploadPartRequest.SetUploadId(uploadId);
uploadPartRequest.SetBody(partStream);
uploadPartRequest.SetContentMD5(Aws::Utils::HashingUtils::Base64Encode(md5OfStream));
printf("%s:%d (%s) partNumber=%d\n", __FILE__, __LINE__, __FUNCTION__, partNumber);
auto startingPoint = partStream->tellg();
partStream->seekg(0LL, partStream->end);
uploadPartRequest.SetContentLength(static_cast<long>(partStream->tellg()));
partStream->seekg(startingPoint);
printf("%s:%d (%s) partNumber=%d\n", __FILE__, __LINE__, __FUNCTION__, partNumber);
static std::shared_ptr<S3Client> client;
client = Aws::MakeShared<S3Client>(ALLOCATION_TAG, // delay here
Aws::MakeShared<Aws::Auth::DefaultAWSCredentialsProviderChain>(ALLOCATION_TAG), config,
AWSAuthV4Signer::PayloadSigningPolicy::Never /*signPayloads*/, true /*useVirtualAddressing*/);
printf("%s:%d (%s) partNumber=%d\n", __FILE__, __LINE__, __FUNCTION__, partNumber);
return client->UploadPartCallable(uploadPartRequest); // submits and returns a future
}