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8be72e6c27
16M is somewhat excessive: configure olm to use a bit less. Requires changes to the olm library to do anything useful, but will be harmless without them. Partial fix to vector-im/riot-web#2726.
41 lines
1.5 KiB
JavaScript
41 lines
1.5 KiB
JavaScript
/*
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Copyright 2016 OpenMarket Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/* a very thin shim for loading olm.js: just sets the global OLM_OPTIONS and
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* requires the actual olm.js library.
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*
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* olm.js reads global.OLM_OPTIONS and defines global.Olm. The latter is fine for us,
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* but we need to prepare the former.
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*
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* We can't use webpack's definePlugin to do this, because we tell webpack not
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* to parse olm.js. We also can't put this code in index.js, because olm and
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* index.js are loaded in parallel, and we need to make sure OLM_OPTIONS is set
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* before olm.js is loaded.
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*/
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/* total_memory must be a power of two, and at least twice the stack.
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*
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* We don't need a lot of stack, but we do need about 128K of heap to encrypt a
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* 64K event (enough to store the ciphertext and the plaintext, bearing in mind
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* that the plaintext can only be 48K because base64). We also have about 36K
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* of statics. So let's have 256K of memory.
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*/
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global.OLM_OPTIONS = {
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TOTAL_STACK: 64*1024,
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TOTAL_MEMORY: 256*1024,
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};
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require('olm/olm.js');
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