refac: synchronize sending (un)pausing in each handler

Author: uerceg

Adjust/Internal/ADJAttributionHandler.m

@@ -99,11 +99,19 @@ - (void)getAttribution {
 }
 
 - (void)pauseSending {
-    self.paused = YES;
+    [ADJUtil launchInQueue:self.internalQueue
+                selfInject:self
+                     block:^(ADJAttributionHandler* selfI) {
+        selfI.paused = YES;
+    }];
 }
 
 - (void)resumeSending {
-    self.paused = NO;
+    [ADJUtil launchInQueue:self.internalQueue
+                selfInject:self
+                     block:^(ADJAttributionHandler* selfI) {
+        selfI.paused = NO;
+    }];
 }
 
 #pragma mark - internal

Adjust/Internal/ADJPackageHandler.m

@@ -173,11 +173,19 @@ - (NSTimeInterval)retryPackageUsingBackoffWithResponse:(ADJResponseData *)respon
 }
 
 - (void)pauseSending {
-    self.paused = YES;
+    [ADJUtil launchInQueue:self.internalQueue
+                selfInject:self
+                     block:^(ADJPackageHandler* selfI) {
+        selfI.paused = YES;
+    }];
 }
 
 - (void)resumeSending {
-    self.paused = NO;
+    [ADJUtil launchInQueue:self.internalQueue
+                selfInject:self
+                     block:^(ADJPackageHandler* selfI) {
+        selfI.paused = NO;
+    }];
 }
 
 - (void)updatePackagesWithAttStatus:(int)attStatus {

Adjust/Internal/ADJPurchaseVerificationHandler.m

@@ -63,12 +63,20 @@ - (id)initWithActivityHandler:(id<ADJActivityHandler>)activityHandler
 }
 
 - (void)pauseSending {
-    self.paused = YES;
+    [ADJUtil launchInQueue:self.internalQueue
+                selfInject:self
+                     block:^(ADJPurchaseVerificationHandler *selfI) {
+        selfI.paused = YES;
+    }];
 }
 
 - (void)resumeSending {
-    self.paused = NO;
-    [self sendNextPurchaseVerificationPackage];
+    [ADJUtil launchInQueue:self.internalQueue
+                selfInject:self
+                     block:^(ADJPurchaseVerificationHandler *selfI) {
+        selfI.paused = NO;
+        [selfI sendNextPurchaseVerificationPackage];
+    }];
 }
 
 - (void)sendPurchaseVerificationPackage:(ADJActivityPackage *)purchaseVerificationPackage {

Adjust/Internal/ADJSdkClickHandler.m

@@ -66,12 +66,20 @@ - (id)initWithActivityHandler:(id<ADJActivityHandler>)activityHandler
 }
 
 - (void)pauseSending {
-    self.paused = YES;
+    [ADJUtil launchInQueue:self.internalQueue
+                selfInject:self
+                     block:^(ADJSdkClickHandler *selfI) {
+        selfI.paused = YES;
+    }];
 }
 
 - (void)resumeSending {
-    self.paused = NO;
-    [self sendNextSdkClick];
+    [ADJUtil launchInQueue:self.internalQueue
+                selfInject:self
+                     block:^(ADJSdkClickHandler *selfI) {
+        selfI.paused = NO;
+        [selfI sendNextSdkClick];
+    }];
 }
 
 - (void)sendSdkClick:(ADJActivityPackage *)sdkClickPackage {