John Deere 317 Skid Steer Repair Manual Repair 101. Service manual for the John Deere 317 Skid Steer with all the necessary parts & tools to complete service repairs and learn how to.
Jan 17, 2019
Description: 5-digit (case number) service and repair manual for the John Deere 317 Skid Steer. This service manual contains complete information.Q:
In iOS: Are there any advantages of replacing the main method with blocks and GCD queues?
So I've got an iOS 4.3 project that has a main.m that looks like this (stripped to the bare minimum):
int main(int argc, char *argv[])
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
@autoreleasepool {
....
[self doStuffInThread];
}
[pool drain];
return 0;
}
This works fine on iOS 4.2. But on iOS 4.3 it has all these warnings:
Block cannot be used to signal a location in the main thread.
Blocks cannot be captured by implicit __block variables.
Declaring a block as __block will break existing code.
But if I replace the main with something like this:
void (*routine)(void);
@autoreleasepool {
....
routine = [self doStuffInThread];
}
int main(int argc, char *argv[])
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
@autoreleasepool {
[pool drain];
if (routine!= NULL) {
routine();
}
}
return 0;
}
and call the routine later in the code:
[self performSelectorInBackground:@selector(doStuffInThread) withObject:nil];
the program seems to run fine. ac619d1d87
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