Wake iOS application via SpringBoardServices

WakeHelper.m

// Inspired [copied] from: http://pastie.org/pastes/4855500#7-8,11-13

#import "WakeHelper.h"
#import <mach/mach.h>
#import <dlfcn.h>

#define SB_SERVICES_PATH "/System/Library/PrivateFrameworks/SpringBoardServices.framework/SpringBoardServices"

typedef mach_port_t sig_SBSSpringBoardServerPort();
typedef mach_error_t sig_SBSetApplicationNextWakeDate(mach_port_t sbsPort, double wakeTime, int flags);
static sig_SBSetApplicationNextWakeDate *fn_SBSetApplicationNextWakeDate;
static sig_SBSSpringBoardServerPort *fn_SBSSpringBoardServerPort;
static void *fx_SpringBoardServices;

static void loadSpringBoardServices() {
    if (!fx_SpringBoardServices) {
        fx_SpringBoardServices = dlopen(SB_SERVICES_PATH, RTLD_LAZY);
        fn_SBSetApplicationNextWakeDate = (sig_SBSetApplicationNextWakeDate *)dlsym(fx_SpringBoardServices, "SBSetApplicationNextWakeDate");
        fn_SBSSpringBoardServerPort = (sig_SBSSpringBoardServerPort *)dlsym(fx_SpringBoardServices, "SBSSpringBoardServerPort");
    }
}

@implementation WakeHelper

+ (void)setApplicationNextWakeDate:(NSDate *)date {
    loadSpringBoardServices();
    double wakeDate = [date timeIntervalSinceReferenceDate];
    mach_error_t err = fn_SBSetApplicationNextWakeDate(fn_SBSSpringBoardServerPort(), wakeDate, 0); // Thread 1: EXC_BAD_ACCESS (code=1, address=0x0)
    if (err != 0) {
        NSLog(@"Could not set wake date: %s", mach_error_string(err));
    }
}

@end