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a51fed2b98
nsBase64Encoder::Finish currently works by calling PL_Base64Encode to allocate a base64-encoded string, then Assign()'ing that to the result string, another allocation. mozilla::Base64Encode enables us to base64 encode directly into the result string with a single allocation, saving an allocation. (Base64Encode is also slightly more efficient, because we don't have to do a strlen() on the string being Assign()'d.) Let's use Base64Encode instead.
66 lines
1.3 KiB
C++
66 lines
1.3 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsBase64Encoder.h"
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#include "mozilla/Base64.h"
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NS_IMPL_ISUPPORTS(nsBase64Encoder, nsIOutputStream)
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NS_IMETHODIMP
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nsBase64Encoder::Close()
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{
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return NS_OK;
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}
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NS_IMETHODIMP
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nsBase64Encoder::Flush()
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{
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return NS_OK;
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}
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NS_IMETHODIMP
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nsBase64Encoder::Write(const char* aBuf, uint32_t aCount, uint32_t* _retval)
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{
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mData.Append(aBuf, aCount);
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*_retval = aCount;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsBase64Encoder::WriteFrom(nsIInputStream* aStream, uint32_t aCount,
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uint32_t* _retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsBase64Encoder::WriteSegments(nsReadSegmentFun aReader,
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void* aClosure,
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uint32_t aCount,
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uint32_t* _retval)
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHODIMP
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nsBase64Encoder::IsNonBlocking(bool* aNonBlocking)
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{
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*aNonBlocking = false;
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return NS_OK;
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}
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nsresult
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nsBase64Encoder::Finish(nsACString& result)
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{
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nsresult rv = mozilla::Base64Encode(mData, result);
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if (NS_FAILED(rv)) {
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return rv;
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}
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// Free unneeded memory and allow reusing the object
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mData.Truncate();
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return NS_OK;
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}
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