Fixing main thread runtime warning issue

Author: Crebs

libs/SalesforceAnalytics/SalesforceAnalytics/Classes/Store/SFSDKEventStoreManager.m

@@ -69,10 +69,12 @@ - (instancetype) initWithStoreDirectory:(NSString *) storeDirectory dataEncrypto
 
         // Gets current number of events stored.
         self.eventCountMutex = [[NSObject alloc] init];
-        self.numStoredEvents = 0;
-        NSArray *files = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:self.storeDirectory error:nil];
-        if (files) {
-            self.numStoredEvents = files.count;
+        @synchronized (self.eventCountMutex) {
+            self.numStoredEvents = 0;
+            NSArray *files = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:self.storeDirectory error:nil];
+            if (files) {
+                self.numStoredEvents = files.count;
+            }
         }
     }
     return self;
@@ -198,7 +200,11 @@ - (void) deleteAllEvents {
 }
 
 - (BOOL) shouldStoreEvent {
-    return (self.isLoggingEnabled && (self.numStoredEvents < self.maxEvents));
+    BOOL result;
+    @synchronized (self.eventCountMutex) {
+        result = (self.isLoggingEnabled && (self.numStoredEvents < self.maxEvents));
+    }
+    return result;
 }
 
 - (BOOL) isLoggingEnabled {

libs/SalesforceSDKCore/SalesforceSDKCore/Classes/UserAccount/SFUserAccountManager.m

@@ -397,7 +397,15 @@ - (void)kickOffIDPInitiatedLoginFlowForSP:(SFSDKSPConfig *)config statusUpdate:(
 }
 
 - (BOOL)loginWithCompletion:(SFUserAccountManagerSuccessCallbackBlock)completionBlock failure:(SFUserAccountManagerFailureCallbackBlock)failureBlock {
-    BOOL result = NO;
+    __block BOOL result = NO;
+    if (![NSThread isMainThread]) {
+        dispatch_async(dispatch_get_main_queue(), ^{
+            result = [self loginWithCompletion:completionBlock failure:failureBlock];
+        });
+        
+        return  result;
+    }
+    
     for (UIScene *scene in [SFApplicationHelper sharedApplication].connectedScenes) {
         result |= [self loginWithCompletion:completionBlock failure:failureBlock scene:scene];
     }
@@ -1219,7 +1227,11 @@ - (BOOL)handleAdvancedAuthURL:(NSURL *)advancedAuthURL options:(NSDictionary *)o
 
 #pragma mark Account management
 - (NSArray *)allUserAccounts {
-    return [self.userAccountMap allValues];
+    NSArray *accounts = nil;
+    [_accountsLock lock];
+    accounts = [self.userAccountMap allValues];
+    [_accountsLock unlock];
+    return accounts;
 }
 
 - (NSArray *)allUserIdentities {