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Merged
TheMoonThatRises merged 2 commits into from
Jan 31, 2026
+65 −0
Merged

Insomnia hack #211

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2de4a41
test: insomnia hack
ohaiibuzzle Jan 29, 2026
9cd0480
fix: allow sleep spamming block to be togglable from PlayCover
ohaiibuzzle Jan 30, 2026
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62 changes: 62 additions & 0 deletions PlayTools/PlayLoader.m
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
// PlayTools
//

#include <Foundation/Foundation.h>
#include <errno.h>
#include <sys/sysctl.h>

Expand Down Expand Up @@ -230,11 +231,62 @@ static int pt_unlink(char const* path) {
return unlink(ue_fix_filename(path));
}

static NSMutableDictionary *thread_sleep_counters = nil;
static NSMutableDictionary *last_sleep_attempts = nil;
static dispatch_once_t thread_sleep_once;
static NSLock *thread_sleep_lock = nil;

static int pt_usleep(useconds_t time) {
dispatch_once(&thread_sleep_once, ^{
thread_sleep_counters = [NSMutableDictionary dictionary];
last_sleep_attempts = [NSMutableDictionary dictionary];
thread_sleep_lock = [[NSLock alloc] init];
[thread_sleep_lock lock];
});

if ([[PlaySettings shared] blockSleepSpamming]) {
int thread_id = pthread_mach_thread_np(pthread_self());
NSNumber *threadKey = @(thread_id);

int thread_sleep_counter = [thread_sleep_counters[threadKey] intValue];
int last_sleep_attempt = [last_sleep_attempts[threadKey] intValue];

if (time == 100000) {
int timestamp = (int)[[NSDate date] timeIntervalSince1970];
// If it sleeps too fast, increase counter
if (timestamp - last_sleep_attempt < 2) {
thread_sleep_counter++;
} else {
thread_sleep_counter = 1;
}
last_sleep_attempt = timestamp;
thread_sleep_counters[threadKey] = @(thread_sleep_counter);
last_sleep_attempts[threadKey] = @(last_sleep_attempt);

}

if (thread_sleep_counter > 100) {
// Stop this thread from spamming usleep calls
NSLog(@"[PC] Thread %i exceeded usleep limit. Seem sus, stopping this "
@"thread FOREVER",
thread_id);

[thread_sleep_lock lock];
[thread_sleep_lock unlock];

return 0;
}
}

return usleep(time);
}

DYLD_INTERPOSE(pt_open, open)
DYLD_INTERPOSE(pt_stat, stat)
DYLD_INTERPOSE(pt_access, access)
DYLD_INTERPOSE(pt_rename, rename)
DYLD_INTERPOSE(pt_unlink, unlink)
DYLD_INTERPOSE(pt_usleep, usleep)

@implementation PlayLoader

Expand All @@ -250,6 +302,16 @@ static void __attribute__((constructor)) initialize(void) {
if (ue_status == 2) {
[PlayKeychain debugLogger: [NSString stringWithFormat:@"UnrealEngine Hooked"]];
}

if ([[PlaySettings shared] blockSleepSpamming]) {
// Add an observer so we can unlock threads on app termination
[[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationWillTerminateNotification
object:nil
queue:[NSOperationQueue mainQueue]
usingBlock:^(NSNotification * _Nonnull note) {
[thread_sleep_lock unlock];
}];
}
}

@end
3 changes: 3 additions & 0 deletions PlayTools/PlaySettings.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -93,6 +93,8 @@ let settings = PlaySettings.shared
@objc lazy var limitMotionUpdateFrequency = settingsData.limitMotionUpdateFrequency

@objc lazy var disableBuiltinMouse = settingsData.disableBuiltinMouse

@objc lazy var blockSleepSpamming = settingsData.blockSleepSpamming
}

struct AppSettingsData: Codable {
Expand Down Expand Up @@ -125,4 +127,5 @@ struct AppSettingsData: Codable {
var resizableAspectRatioType = 0
var resizableAspectRatioWidth = 0
var resizableAspectRatioHeight = 0
var blockSleepSpamming = false
}