warning: could not execute support code to read Objective-C class data in the process.

iOS In the process of development and stress testing :

warning: could not execute support code to read Objective-C class data in the process. This may reduce the quality of type information available.

When this problem occurs, I use the method introduced a while ago to change asynchronous threads to synchronous calls

CFRunLoopStop(CFRunLoopGetMain());

CFRunLoopRun();

At first I thought it was for internal use GCD Too many methods lead to , I specially put what I wrote before Demo Copy it out and write an endless loop to test . The result circulates 15 Minutes without breaking down . It's strange .

Later, I changed this method into Block Code block method plus judgment condition dead loop is good . I guess this method detected that I was doing a dead cycle internally, so I took the initiative to collapse .