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Safe delete of HttpThreads in destructor of HttpRequest (remove from list).

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vng 2012-11-06 19:47:49 +03:00 • committed by Alex Zolotarev
parent 051df2870e
commit b9bc599a21
1 changed files with 32 additions and 12 deletions
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44
platform/http_request.cpp
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@ -111,7 +111,8 @@ public:
class FileHttpRequest : public HttpRequest, public IHttpThreadCallback
{
ChunksDownloadStrategy m_strategy;
typedef list<pair<HttpThread *, int64_t> > ThreadsContainerT;
typedef pair<HttpThread *, int64_t> ThreadHandleT;
typedef list<ThreadHandleT> ThreadsContainerT;
ThreadsContainerT m_threads;
string m_filePath;
@ -134,16 +135,29 @@ class FileHttpRequest : public HttpRequest, public IHttpThreadCallback
return result;
}
class ThreadByPos
{
int64_t m_pos;
public:
ThreadByPos(int64_t pos) : m_pos(pos) {}
inline bool operator() (ThreadHandleT const & p) const
{
return (p.second == m_pos);
}
};
void RemoveHttpThreadByKey(int64_t begRange)
{
for (ThreadsContainerT::iterator it = m_threads.begin(); it != m_threads.end(); ++it)
if (it->second == begRange)
{
DeleteNativeHttpThread(it->first);
m_threads.erase(it);
return;
}
ASSERT ( false, ("Tried to remove invalid thread?") );
ThreadsContainerT::iterator it = find_if(m_threads.begin(), m_threads.end(),
ThreadByPos(begRange));
if (it != m_threads.end())
{
HttpThread * p = it->first;
m_threads.erase(it);
DeleteNativeHttpThread(p);
}
else
LOG(LERROR, ("Tried to remove invalid thread for position", begRange));
}
virtual bool OnWrite(int64_t offset, void const * buffer, size_t size)
@ -297,13 +311,19 @@ public:
DisableBackupForFile(filePath + DOWNLOADING_FILE_EXTENSION);
#endif
StartThreads();
(void)StartThreads();
}
virtual ~FileHttpRequest()
{
for (ThreadsContainerT::iterator it = m_threads.begin(); it != m_threads.end(); ++it)
DeleteNativeHttpThread(it->first);
// Do safe delete with removing from list in case if DeleteNativeHttpThread
// can produce final notifications to this->OnFinish().
while (!m_threads.empty())
{
HttpThread * p = m_threads.back().first;
m_threads.pop_back();
DeleteNativeHttpThread(p);
}
if (m_status == EInProgress)
{