private void nextTask(long offset, int retried, string upHost)
{
//上传中途触发停止
if (this.isCancelled())
{
this.upCompletionHandler(this.key, ResponseInfo.cancelled(), null);
return;
}
//所有分片已上传
if (offset == this.size)
{
this.makeFile(upHost, new CompletionHandler(delegate(ResponseInfo respInfo, string response)
{
//makeFile成功
if (respInfo.isOk())
{
removeRecord();
Console.WriteLine("mkfile ok, upload done!");
this.upCompletionHandler(this.key, respInfo, response);
return;
}
//失败重试，如果614，则不重试
if (respInfo.StatusCode != 614)
{
if (respInfo.needRetry() && retried < Config.RETRY_MAX)
{
Console.WriteLine("mkfile retrying due to {0}...", respInfo.StatusCode);
string upHost2 = Config.ZONE.UploadHost;
nextTask(offset, retried + 1, upHost2);
return;
}
}
Console.WriteLine("mkfile error, upload failed due to {0}", respInfo.StatusCode);
this.upCompletionHandler(key, respInfo, response);
}));
return;
}
//创建块或上传分片
int chunkSize = calcBPutChunkSize(offset);
ProgressHandler progressHandler = new ProgressHandler(delegate(long bytesWritten, long totalBytes)
{
double percent = (double)(offset) / this.size;
Console.WriteLine("resumable upload progress {0}", percent);
if (percent > 0.95)
{
percent = 0.95;
}
this.uploadOptions.ProgressHandler(this.key, percent);
});
CompletionHandler completionHandler = new CompletionHandler(delegate(ResponseInfo respInfo, string response)
{
if (offset % Config.BLOCK_SIZE == 0)
{
Console.WriteLine("mkblk result {0}, offset {1}", respInfo.StatusCode, offset);
}
else
{
Console.WriteLine("bput result {0}, offset {1}", respInfo.StatusCode, offset);
}
if (!respInfo.isOk())
{
//如果是701错误，为mkblk的ctx过期
if (respInfo.StatusCode == 701)
{
nextTask((offset / Config.BLOCK_SIZE) * Config.BLOCK_SIZE, retried, upHost);
return;
}
if (retried >= Config.RETRY_MAX || !respInfo.needRetry())
{
this.upCompletionHandler(key, respInfo, response);
return;
}
String upHost2 = upHost;
if (respInfo.needRetry())
{
upHost2 = Config.ZONE.UploadHost;
}
nextTask(offset, retried + 1, upHost2);
return;
}
//请求成功
string chunkContext = null;
if (response == null || string.IsNullOrEmpty(response))
{
nextTask(offset, retried + 1, upHost);
return;
}
long chunkCrc32 = 0;
Dictionary <string, string> respDict = JsonConvert.DeserializeObject <Dictionary <string, string> >(response);
if (respDict.ContainsKey("ctx"))
{
chunkContext = respDict["ctx"];
}
if (respDict.ContainsKey("crc32"))
{
chunkCrc32 = Convert.ToInt64(respDict["crc32"]);
}
if (chunkContext == null || chunkCrc32 != this.crc32)
{
nextTask(offset, retried + 1, upHost);
return;
}
this.contexts[offset / Config.BLOCK_SIZE] = chunkContext;
record(offset + chunkSize);
nextTask(offset + chunkSize, retried, upHost);
});
//创建块
if (offset % Config.BLOCK_SIZE == 0)
{
int blockSize = calcMakeBlockSize(offset);
this.makeBlock(upHost, offset, blockSize, chunkSize, progressHandler, completionHandler);
return;
}
//上传分片
string context = this.contexts[offset / Config.BLOCK_SIZE];
this.putChunk(upHost, offset, chunkSize, context, progressHandler, completionHandler);
}
private void nextTask(long offset, int retried, string upHost)
{
//上传中途触发停止
if (this.isCancelled())
{
this.upCompletionHandler(this.key, ResponseInfo.cancelled(), null);
return;
}
//所有分片已上传
if (offset == this.size)
{
this.makeFile(upHost, new CompletionHandler(delegate(ResponseInfo respInfo, string response)
{
//makeFile成功
if (respInfo.isOk())
{
removeRecord();
Console.WriteLine("mkfile ok, upload done!");
this.upCompletionHandler(this.key, respInfo, response);
return;
}
//失败重试，如果614，则不重试
if (respInfo.StatusCode != 614)
{
if (respInfo.needRetry() && retried < Config.RETRY_MAX)
{
Console.WriteLine("mkfile retrying due to {0}...", respInfo.StatusCode);
//string upHost2 = Config.ZONE.UploadHost;
fileStream.Seek(offset, SeekOrigin.Begin);
nextTask(offset, retried + 1, upHost);
return;
}
}
Console.WriteLine("mkfile error, upload failed due to {0}", respInfo.StatusCode);
this.upCompletionHandler(key, respInfo, response);
}));
return;
}
//创建块或上传分片
int chunkSize = calcBPutChunkSize(offset);
ProgressHandler progressHandler = new ProgressHandler(delegate(long bytesWritten, long totalBytes)
{
double percent = (double)(offset) / this.size;
Console.WriteLine("resumable upload progress {0}", percent);
// why 0.95
//if (percent > 0.95)
//{
// percent = 0.95;
//}
this.uploadOptions.ProgressHandler(this.key, percent);
});
CompletionHandler completionHandler = new CompletionHandler(delegate(ResponseInfo respInfo, string response)
{
if (offset % Config.BLOCK_SIZE == 0)
{
Console.WriteLine("mkblk result {0}, offset {1}", respInfo.StatusCode, offset);
}
else
{
Console.WriteLine("bput result {0}, offset {1}", respInfo.StatusCode, offset);
}
if (!respInfo.isOk())
{
//如果是701错误，为mkblk的ctx过期
if (respInfo.StatusCode == 701)
{
Console.WriteLine("mkblk ctx is out of date, re-do upload");
offset = (offset / Config.BLOCK_SIZE) * Config.BLOCK_SIZE;
fileStream.Seek(offset, SeekOrigin.Begin);
nextTask(offset, retried, upHost);
return;
}
if (retried >= Config.RETRY_MAX || !respInfo.needRetry())
{
Console.WriteLine("retried " + retried + " times, all failed");
this.upCompletionHandler(key, respInfo, response);
return;
}
// 下一个任务，使用uploadHost
string uploadHost = upHost;
if (respInfo.needRetry())
{
Console.WriteLine(string.Format("upload-retry #{0}", retried + 1));
if (Config.RetryWaitForNext)
{
Console.WriteLine(string.Format("wait for {0} milisecond(s)", Config.RETRY_INTERVAL_MILISEC));
// 如果需要重试，并且设置了多次重试之间的时间间隔
System.Threading.Thread.Sleep(Config.RETRY_INTERVAL_MILISEC);
}
//// 交替使用两个域名重试
//if (retried % 2 != 0)
//{
// uploadHost = Config.UploadFromCDN ? Config.ZONE.UploadHost : Config.ZONE.UpHost;
//}
//else
//{
// uploadHost = Config.UploadFromCDN ? Config.ZONE.UpHost : Config.ZONE.UploadHost;
//}
}
fileStream.Seek(offset, SeekOrigin.Begin);
nextTask(offset, retried + 1, uploadHost);
return;
}
//请求成功
string chunkContext = null;
if (response == null || string.IsNullOrEmpty(response))
{
fileStream.Seek(offset, SeekOrigin.Begin);
nextTask(offset, retried + 1, upHost);
return;
}
long chunkCrc32 = 0;
Dictionary <string, string> respDict = JsonConvert.DeserializeObject <Dictionary <string, string> >(response);
if (respDict.ContainsKey("ctx"))
{
chunkContext = respDict["ctx"];
}
if (respDict.ContainsKey("crc32"))
{
chunkCrc32 = Convert.ToInt64(respDict["crc32"]);
}
//if(respDict.ContainsKey("host"))
//{
// upHost = respDict["host"];
//}
if (chunkContext == null || chunkCrc32 != this.crc32)
{
fileStream.Seek(offset, SeekOrigin.Begin);
nextTask(offset, retried + 1, upHost);
return;
}
this.contexts[offset / Config.BLOCK_SIZE] = chunkContext;
record(offset + chunkSize);
nextTask(offset + chunkSize, retried, upHost);
});
//创建块
if (offset % Config.BLOCK_SIZE == 0)
{
int blockSize = calcMakeBlockSize(offset);
this.makeBlock(upHost, offset, blockSize, chunkSize, progressHandler, completionHandler);
return;
}
//上传分片
string context = this.contexts[offset / Config.BLOCK_SIZE];
this.putChunk(upHost, offset, chunkSize, context, progressHandler, completionHandler);
}
