gecko-dev/dom/media/EncodedBufferCache.cpp
Nathan Froyd 01583602a9 Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat
The bulk of this commit was generated with a script, executed at the top
level of a typical source code checkout.  The only non-machine-generated
part was modifying MFBT's moz.build to reflect the new naming.

CLOSED TREE makes big refactorings like this a piece of cake.

 # The main substitution.
find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \
    xargs perl -p -i -e '
 s/nsRefPtr\.h/RefPtr\.h/g; # handle includes
 s/nsRefPtr ?</RefPtr</g;   # handle declarations and variables
'

 # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h.
perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h

 # Handle nsRefPtr.h itself, a couple places that define constructors
 # from nsRefPtr, and code generators specially.  We do this here, rather
 # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename
 # things like nsRefPtrHashtable.
perl -p -i -e 's/nsRefPtr/RefPtr/g' \
     mfbt/nsRefPtr.h \
     xpcom/glue/nsCOMPtr.h \
     xpcom/base/OwningNonNull.h \
     ipc/ipdl/ipdl/lower.py \
     ipc/ipdl/ipdl/builtin.py \
     dom/bindings/Codegen.py \
     python/lldbutils/lldbutils/utils.py

 # In our indiscriminate substitution above, we renamed
 # nsRefPtrGetterAddRefs, the class behind getter_AddRefs.  Fix that up.
find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \
    xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g'

if [ -d .git ]; then
    git mv mfbt/nsRefPtr.h mfbt/RefPtr.h
else
    hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h
fi

--HG--
rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
2015-10-18 01:24:48 -04:00

92 lines
2.9 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "EncodedBufferCache.h"
#include "mozilla/dom/File.h"
#include "nsAnonymousTemporaryFile.h"
#include "prio.h"
namespace mozilla {
void
EncodedBufferCache::AppendBuffer(nsTArray<uint8_t> & aBuf)
{
MutexAutoLock lock(mMutex);
mDataSize += aBuf.Length();
mEncodedBuffers.AppendElement()->SwapElements(aBuf);
if (!mTempFileEnabled && mDataSize > mMaxMemoryStorage) {
nsresult rv;
PRFileDesc* tempFD = nullptr;
{
// Release the mMutex because there is a sync dispatch to mainthread in
// NS_OpenAnonymousTemporaryFile.
MutexAutoUnlock unlock(mMutex);
rv = NS_OpenAnonymousTemporaryFile(&tempFD);
}
if (!NS_FAILED(rv)) {
// Check the mDataSize again since we release the mMutex before.
if (mDataSize > mMaxMemoryStorage) {
mFD = tempFD;
mTempFileEnabled = true;
} else {
// Close the tempFD because the data had been taken during the
// MutexAutoUnlock.
PR_Close(tempFD);
}
}
}
if (mTempFileEnabled) {
// has created temporary file, write buffer in it
for (uint32_t i = 0; i < mEncodedBuffers.Length(); i++) {
int32_t amount = PR_Write(mFD, mEncodedBuffers.ElementAt(i).Elements(), mEncodedBuffers.ElementAt(i).Length());
if (amount < 0 || size_t(amount) < mEncodedBuffers.ElementAt(i).Length()) {
NS_WARNING("Failed to write media cache block!");
}
}
mEncodedBuffers.Clear();
}
}
already_AddRefed<dom::Blob>
EncodedBufferCache::ExtractBlob(nsISupports* aParent,
const nsAString &aContentType)
{
MutexAutoLock lock(mMutex);
RefPtr<dom::Blob> blob;
if (mTempFileEnabled) {
// generate new temporary file to write
blob = dom::Blob::CreateTemporaryBlob(aParent, mFD, 0, mDataSize,
aContentType);
// fallback to memory blob
mTempFileEnabled = false;
mDataSize = 0;
mFD = nullptr;
} else {
void* blobData = malloc(mDataSize);
NS_ASSERTION(blobData, "out of memory!!");
if (blobData) {
for (uint32_t i = 0, offset = 0; i < mEncodedBuffers.Length(); i++) {
memcpy((uint8_t*)blobData + offset, mEncodedBuffers.ElementAt(i).Elements(),
mEncodedBuffers.ElementAt(i).Length());
offset += mEncodedBuffers.ElementAt(i).Length();
}
blob = dom::Blob::CreateMemoryBlob(aParent, blobData, mDataSize,
aContentType);
mEncodedBuffers.Clear();
} else
return nullptr;
}
mDataSize = 0;
return blob.forget();
}
} // namespace mozilla