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tile data cache - reduce size on mobile (due to limited RAM), and increase on desktop

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This commit is contained in:
Jon Atkins 2013-09-02 21:20:44 +01:00
parent 98f88b07e9
commit 30ecb93b19
1 changed files with 10 additions and 2 deletions
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10
code/map_data_cache.js
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@ -4,8 +4,16 @@
window.DataCache = function() {
this.REQUEST_CACHE_FRESH_AGE = 90; // if younger than this, use data in the cache rather than fetching from the server
this.REQUEST_CACHE_MAX_AGE = 60*60; // maximum cache age. entries are deleted from the cache after this time
if (L.Browser.mobile) {
// on mobile devices, smaller cache size
this.REQUEST_CACHE_MIN_SIZE = 200; // if fewer than this many entries, don't expire any
this.REQUEST_CACHE_MAX_SIZE = 2000; // if more than this many entries, expire early
this.REQUEST_CACHE_MAX_SIZE = 1000; // if more than this many entries, expire early
} else {
// but on desktop, allow more
this.REQUEST_CACHE_MIN_SIZE = 500; // if fewer than this many entries, don't expire any
this.REQUEST_CACHE_MAX_SIZE = 4000; // if more than this many entries, expire early
}
this._cache = {};