From ca54cb9d31dfed7166d7aaf43cc65b9217757ed1 Mon Sep 17 00:00:00 2001
From: xiongziliang <771730766@qq.com>
Date: Fri, 5 May 2017 23:54:30 +0800
Subject: [PATCH] =?UTF-8?q?=E8=A7=A3=E5=86=B3=E6=96=AD=E7=82=B9=E7=BB=AD?=
 =?UTF-8?q?=E4=BC=A0=E8=BF=94=E5=9B=9E416=E7=9A=84=E9=97=AE=E9=A2=98?=
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---
 src/Http/HttpDownloader.cpp | 5 +++++
 src/Http/HttpDownloader.h   | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/Http/HttpDownloader.cpp b/src/Http/HttpDownloader.cpp
index 1d352080..d6162ee4 100644
--- a/src/Http/HttpDownloader.cpp
+++ b/src/Http/HttpDownloader.cpp
@@ -34,6 +34,11 @@ void HttpDownloader::startDownload(const string& url, const string& filePath,boo
 	}
 	if(bAppend){
 		auto currentLen = ftell(_saveFile);
+		if(currentLen){
+			//最少续传一个字节，怕遇到http 416的错误
+			currentLen -= 1;
+			fseek(_saveFile,-1,SEEK_CUR);
+		}
 		addHeader("Range", StrPrinter << "bytes=" << currentLen << "-" << endl);
 	}
 	setMethod("GET");
diff --git a/src/Http/HttpDownloader.h b/src/Http/HttpDownloader.h
index 93a04c19..ba890f0e 100644
--- a/src/Http/HttpDownloader.h
+++ b/src/Http/HttpDownloader.h
@@ -16,7 +16,7 @@ namespace Http {
 class HttpDownloader: public HttpClientImp {
 public:
 	typedef std::shared_ptr<HttpDownloader> Ptr;
-	typedef std::function<void(int code,const char *errMsg,const char *filePath)> onDownloadResult;
+	typedef std::function<void(ErrCode code,const char *errMsg,const char *filePath)> onDownloadResult;
 	HttpDownloader();
 	virtual ~HttpDownloader();
 	//开始下载文件,默认断点续传方式下载