[ios] initial implementation for setMaximumCacheSize

2 files changed, 29 insertions, 0 deletions

diff --git a/platform/darwin/src/MGLOfflineStorage.h b/platform/darwin/src/MGLOfflineStorage.h
index b48f2ebf2c..2f869f6bde 100644
--- a/platform/darwin/src/MGLOfflineStorage.h
+++ b/platform/darwin/src/MGLOfflineStorage.h
@@ -341,6 +341,27 @@ MGL_EXPORT
  */
 @property (nonatomic, readonly) unsigned long long countOfBytesCompleted;
 
+
+#pragma mark - Managing Ambient Cache
+
+
+// JK FINISH DOC
+/*
+ Sets the maximum ambient cache size in megabytes. The default maximum cache size is _ MB. To disable ambient caching, set the maximum ambient cache size to 0.
+ 
+ This method should be called before using the database.
+ */
+
+- (void)setMaximumAmbientCacheSize:(uint64_t)cacheSize;
+
+/*
+ Forces cache tiles to be invalidated and updated from the tile server. This ensures that the
+ */
+
+- (void)invalidateAmbientCache {
+    
+}
+
 /*
  Inserts the provided resource into the ambient cache.
  
diff --git a/platform/darwin/src/MGLOfflineStorage.mm b/platform/darwin/src/MGLOfflineStorage.mm
index 6effd8c3ce..b7f5531bb1 100644
--- a/platform/darwin/src/MGLOfflineStorage.mm
+++ b/platform/darwin/src/MGLOfflineStorage.mm
@@ -486,6 +486,14 @@ const MGLExceptionName MGLUnsupportedRegionTypeException = @"MGLUnsupportedRegio
     _mbglFileSource->setOfflineMapboxTileCountLimit(maximumCount);
 }
 
+#pragma mark - Ambient Cache management
+
+- (void)setMaximumAmbientCacheSize:(uint64_t)cacheSize {
+    
+    if ( ! cacheSize > 0 ) { /* give a warning*/ } ;
+    _mbglFileSource->setMaximumAmbientCacheSize(cacheSize, nil); // I should do something with the std::exception_ptr here but i don't know what
+}
+
 #pragma mark -
 
 - (unsigned long long)countOfBytesCompleted {