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我上傳圖像塊智慧，在後臺線程，每個塊將大小爲512kb，據我所知，我已經照顧使用版本，nsautoreleasepool內存泄漏的照顧。 以下是上傳圖片chunkwise的代碼。NSThread導致內存泄漏iPhone
- (void)FetchDataFromDB : (NSNumber *) isOffline
{
@autoreleasepool {
@try {
NSLog(@"FetchDatafromDB");
isThreadStarted = YES;
VYukaDBFunctions *vdb = [VYukaDBFunctions getInstance];
NSMutableArray *fileNames = [vdb GetFileNames:[isOffline integerValue]];
for(int j=0 ; j<[fileNames count] ; j++)
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSString * filename = fileNames [j] ;
int _outgoingMsgId = [[vdb SelectMsgId:filename] intValue];
int _totalchunk =[[vdb SelectTotalChunk:filename]intValue];
int currentChunk = [vdb GetCurrentChunk:filename];
for(int i=currentChunk ; i <= _totalchunk ; i++)
{
NSAutoreleasePool *innerPool = [[NSAutoreleasePool alloc] init];
NSString *AsyncRequest = [[NSString alloc] init];
AsyncRequest = [vdb SelectAsyncRequest: i : _outgoingMsgId];
if(![AsyncRequest isEqual:@""])
{
BOOL status = [self UploadChunkWise :AsyncRequest : 1 : i : vdb : filename : _outgoingMsgId];
// AsyncRequest = NULL;
// [AsyncRequest release];
if(status){
if(i==_totalchunk)
{
NSLog(@"Deleting from medialist , FileName :%@", filename);
[vdb DeleteFromMediaList : filename];
}
}
else{
[vdb DeleteFromMediaList : filename];
break;
}
}
[innerPool drain];
}
[pool drain];
}
[fileNames removeAllObjects];
// [fileNames release];
//recurssive call to check any pending uploads..
if([[vdb GetFileNames:[isOffline integerValue]] count] > 0)
{
NSLog(@"Calling Recursively..");
[self FetchDataFromDB:[isOffline integerValue]];
}
}
@catch (NSException *exception) {
NSLog(@"Exception caught on Uploading from FetchDataFromDB:%@", exception);
}
@finally {
}
}
NSLog(@"thread quit ");
isThreadStarted = NO;
[NSThread exit];
}
-(BOOL) UploadChunkWise :(NSString *) AsyncRequest : (int) count : (int)currentChunk : (VYukaDBFunctions *) vdb : (NSString *) currentFileName : (int) outgoingMsgId
{
NSHTTPURLResponse *response ;
NSError *error;
//Yes, http
NSMutableURLRequest *httpRequest = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:@"Url goes here"]];
NSData* data = [AsyncRequest dataUsingEncoding:NSUTF8StringEncoding];
[httpRequest setHTTPMethod:@"POST"];
[httpRequest setHTTPBody:data];
[httpRequest setValue:@"application/xml" forHTTPHeaderField:@"Content-Type"];
NSData *returnedData = [NSURLConnection sendSynchronousRequest: httpRequest returningResponse:&response error:&error] ;
NSString *result= [[NSString alloc] initWithData:returnedData encoding:NSASCIIStringEncoding];
[httpRequest release];
returnedData= NULL;
[returnedData release];
data = NULL;
[data release];
if ([result rangeOfString:@"success"].location != NSNotFound)
{
NSLog(@" success");
[vdb DeleteCurrentChunkFromOutgoingTable:currentChunk : outgoingMsgId];
[result release];
return YES ;
}
else if ([result rangeOfString:@"fail"].location != NSNotFound)
{
[result release];
if (count < 3) {
return [self UploadChunkWise :AsyncRequest : count+1 : currentChunk: vdb : currentFileName : outgoingMsgId ];
}
else
{
NSLog(@" failed");
[vdb DeleteAllCurrentFileChunksFromOutgoingTable:currentFileName];
return NO ;
}
}
return NO;
}
我開始線程如下
[NSThread detachNewThreadSelector:@selector(FetchDataFromDB:) toTarget:self withObject:[NSNumber numberWithInt:0]];
問題是上傳9〜12塊後，我收到內存錯誤。我得到4至5倍的內存警告，然後在應用程序崩潰。在控制檯我收到內存警告第一次在應用程序委託類，其次是擴展UIViewController 4個類。爲什麼我得到應用程序委託和其他類的UIViewController類的警告。爲什麼我必須釋放其他類的對象，如果單獨的線程給我內存錯誤？我在這裏做錯了什麼？我不能使用ARC，因爲我已經將它與舊的代碼整合在一起，這不是使用ARC，我嘗試啓用ARC類明智的，但它的工作。任何人都可以幫助我找出這個代碼中是否有任何內存泄漏。建議是歡迎和appreciated.Thanks提前..