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michaeleisel/gist:fbf83bcea35c5f974fa579022e2a9b62

Created November 22, 2018 04:15
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gistfile1.txt
static dispatch_source_t msp;
static void func() {
msp = dispatch_source_create(DISPATCH_SOURCE_TYPE_MEMORYPRESSURE, NULL, DISPATCH_MEMORYPRESSURE_CRITICAL, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0));
dispatch_source_set_event_handler(msp, ^{
unsigned long l = dispatch_source_get_data(msp);
NSLog@"%@", @(l));
});
}
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