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Added ProgressCallback; Added options to specify request range; Remov…
…ed auto created CurlMultiUpdater since it would cause unexpected behaviours when hit stop button in Unity
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Nov 9, 2019
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| using CurlUnity; | ||
| using System; | ||
| using System.IO; | ||
| using UnityEngine; | ||
|
|
||
| public class SampleResumeDownload : MonoBehaviour | ||
| { | ||
| public string m_link; | ||
| public string m_localPath; | ||
|
|
||
| private long m_downloadedBytes; | ||
| private long m_nowBytes; | ||
| private long m_totalBytes; | ||
|
|
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| private CurlMulti m_multi; | ||
|
|
||
| void Start() | ||
| { | ||
| m_multi = new CurlMulti(); | ||
| ResumeDownload(); | ||
| } | ||
|
|
||
| async void ResumeDownload() | ||
| { | ||
| var easy = new CurlEasy(); | ||
| easy.uri = new Uri(m_link); | ||
| easy.method = "HEAD"; | ||
| easy.debug = true; | ||
|
|
||
| if (await easy.PerformAsync() == CURLE.OK) | ||
| { | ||
| if (easy.GetResponseHeader("Accept-Ranges") == "bytes") | ||
| { | ||
| m_downloadedBytes = 0; | ||
| if (File.Exists(m_localPath)) m_downloadedBytes = (new FileInfo(m_localPath)).Length; | ||
| int.TryParse(easy.GetResponseHeader("Content-Length"), out var contentLength); | ||
| if (contentLength != 0 && contentLength <= m_downloadedBytes) | ||
| { | ||
| Debug.LogWarning($"Link {m_link} already downloaded at: {m_localPath}"); | ||
| } | ||
| else | ||
| { | ||
| Debug.Log($"Start to download {m_link} in range {m_downloadedBytes}-{contentLength}"); | ||
| easy.method = "GET"; | ||
| easy.outputPath = m_localPath; | ||
| easy.rangeStart = m_downloadedBytes; | ||
| easy.rangeEnd = contentLength; | ||
| easy.progressCallback = (dltotal, dlnow, ultotal, ulnow, _) => | ||
| { | ||
| m_nowBytes = dlnow; | ||
| m_totalBytes = dltotal; | ||
| return 0; | ||
| }; | ||
| easy.performCallback = (result, _) => | ||
| { | ||
| if (result == CURLE.OK) | ||
| { | ||
| Debug.Log($"Link {m_link} downloaded"); | ||
| } | ||
| else | ||
| { | ||
| Debug.LogWarning($"Failed to download link {m_link}"); | ||
| } | ||
| }; | ||
| // Use multi perform so we could interrupt the download | ||
| easy.MultiPerform(m_multi); | ||
| } | ||
| } | ||
| else | ||
| { | ||
| Debug.LogWarning($"Link {m_link} doesn't support Accept-Ranges"); | ||
| } | ||
| } | ||
| else | ||
| { | ||
| Debug.LogWarning($"Failed to get info of link {m_link}"); | ||
| } | ||
| } | ||
|
|
||
| private void OnGUI() | ||
| { | ||
| GUILayout.Label($"Download progress {m_nowBytes}-{m_totalBytes} ({m_downloadedBytes} already downloaded)"); | ||
| } | ||
| } |
2 changes: 1 addition & 1 deletion
2
Assets/curl-unity/CurlTest.cs.meta → Assets/Samples/SampleResumeDownload.cs.meta
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2 changes: 1 addition & 1 deletion
2
Assets/Scenes/SampleScene.unity.meta → ...s/Samples/SampleResumeDownload.unity.meta
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