private static void _StartPicDownload(Uri uri, string target)
{
do
{
bool downloaded = false;
//System.Threading.Thread.Sleep (5000);
downloaded = Download(uri, target);
if (!downloaded)
{
Console.WriteLine("Error fetching picture for {0} to {1}", uri, target);
}
// Cluster all updates together
bool doInvoke = false;
lock (requestQueue)
{
if (downloaded)
{
queuedUpdates.Add(uri);
// If this is the first queued update, must notify
if (queuedUpdates.Count == 1)
{
doInvoke = true;
}
}
else
{
pendingRequests.Remove(uri);
}
// Try to get more jobs.
if (requestQueue.Count > 0)
{
uri = requestQueue.Pop();
if (uri == null)
{
Console.Error.WriteLine("Dropping request {0} because url is null", uri);
pendingRequests.Remove(uri);
uri = null;
}
}
else
{
//Util.Log ("Leaving because requestQueue.Count = {0} NOTE: {1}", requestQueue.Count, pendingRequests.Count);
uri = null;
}
}
if (doInvoke)
{
nsDispatcher.BeginInvokeOnMainThread(NotifyImageListeners);
}
} while (uri != null);
}
void Launch(string url, bool callbackOnMainThread, Action <Stream> callback)
{
Util.PushNetworkActive();
Uri uri = new Uri(url);
// Wake up 3G if it has been more than 3 minutes
lock (minuteLock){
var nowTicks = DateTime.UtcNow.Ticks;
if (nowTicks - lastLaunchTick > TimeSpan.TicksPerMinute * 3)
{
MonoTouch.ObjCRuntime.Runtime.StartWWAN(uri);
}
lastLaunchTick = nowTicks;
}
var request = (HttpWebRequest)WebRequest.Create(uri);
request.AutomaticDecompression = DecompressionMethods.GZip;
request.Headers [HttpRequestHeader.Authorization] = OAuthAuthorizer.AuthorizeRequest(OAuthConfig, OAuthToken, OAuthTokenSecret, "GET", uri, null);
request.BeginGetResponse(ar => {
try {
lock (queue)
pending--;
Util.PopNetworkActive();
Stream stream = null;
try {
var response = (HttpWebResponse)request.EndGetResponse(ar);
stream = response.GetResponseStream();
// Since the stream will deliver in chunks, make a copy before passing to the main UI
if (callbackOnMainThread)
{
var ms = new MemoryStream();
CopyStream(stream, ms);
ms.Position = 0;
stream.Close();
stream = ms;
}
} catch (WebException we) {
var response = we.Response as HttpWebResponse;
if (response != null)
{
switch (response.StatusCode)
{
case HttpStatusCode.Unauthorized:
// This is the case of sharing two keys
break;
}
stream = null;
}
Console.WriteLine(we);
} catch (Exception e) {
Console.WriteLine(e);
stream = null;
}
if (callbackOnMainThread)
{
invoker.BeginInvokeOnMainThread(delegate { InvokeCallback(callback, stream); });
}
else
{
InvokeCallback(callback, stream);
}
} catch (Exception e) {
Console.WriteLine(e);
}
lock (queue){
if (queue.Count > 0)
{
var nextRequest = queue.Dequeue();
Launch(nextRequest.Url, nextRequest.CallbackOnMainThread, nextRequest.Callback);
}
}
}, null);
}
static void StartImageDownload(long id, Uri url)
{
ThreadCount++;
Util.PushNetworkActive();
do
{
var buffer = new byte [4 * 1024];
using (var file = new FileStream(SmallPicDir + id + ".jpg", FileMode.Create, FileAccess.Write, FileShare.Read)) {
var req = WebRequest.Create(url) as HttpWebRequest;
using (var resp = req.GetResponse()) {
using (var s = resp.GetResponseStream()) {
int n;
while ((n = s.Read(buffer, 0, buffer.Length)) > 0)
{
file.Write(buffer, 0, n);
}
file.Flush();
}
}
}
// Cluster all updates together
bool doInvoke = false;
lock (queuedUpdates){
queuedUpdates.Add(id);
// If this is the first queued update, must notify
if (queuedUpdates.Count > 0)
{
doInvoke = true;
}
}
// Try to get more jobs.
lock (requestQueue){
if (requestQueue.Count > 0)
{
id = requestQueue.Dequeue();
}
else
{
id = -1;
}
}
url = GetImageUrlFromId(id, null);
if (url == null)
{
id = -1;
}
if (doInvoke)
{
nsDispatcher.BeginInvokeOnMainThread(NotifyImageListeners);
}
} while (id != -1);
Util.PopNetworkActive();
ThreadCount--;
}
static void _StartPicDownload(long id, Uri url)
{
do
{
string picdir = id < TempStartId ? PicDir : TmpDir;
bool downloaded = false;
downloaded = Download(url, picdir + id + ".png");
if (!downloaded)
{
Console.WriteLine("Error fetching picture for {0} from {1}", id, url);
}
// Cluster all updates together
bool doInvoke = false;
lock (requestQueue){
if (downloaded)
{
queuedUpdates.Add(id);
// If this is the first queued update, must notify
if (queuedUpdates.Count == 1)
{
doInvoke = true;
}
}
else
{
pendingRequests.Remove(id);
#if DEBUGIMAGE
pendingTimes.Remove(id);
#endif
}
idToUrl.Remove(id);
// Try to get more jobs.
if (requestQueue.Count > 0)
{
id = requestQueue.Pop();
url = GetPicUrlFromId(id, null);
if (url == null)
{
Util.Log("Dropping request {0} because url is null", id);
pendingRequests.Remove(id);
#if DEBUGIMAGE
pendingTimes.Remove(id);
#endif
id = -1;
}
}
else
{
//Util.Log ("Leaving because requestQueue.Count = {0} NOTE: {1}", requestQueue.Count, pendingRequests.Count);
id = -1;
}
}
if (doInvoke)
{
nsDispatcher.BeginInvokeOnMainThread(NotifyImageListeners);
}
} while (id != -1);
}
