69 lines
1.6 KiB
Objective-C
69 lines
1.6 KiB
Objective-C
//
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// Copyright 2020 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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//
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#import "DarwinNotificationCenter.h"
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#import <SignalServiceKit/SignalServiceKit-Swift.h>
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#import <notify.h>
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const int DarwinNotificationInvalidObserver = NOTIFY_TOKEN_INVALID;
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@implementation DarwinNotificationCenter
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+ (BOOL)isValidObserver:(int)observerToken
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{
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return notify_is_valid_token(observerToken);
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}
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+ (void)postNotificationName:(DarwinNotificationName *)name
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{
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OWSAssertDebug(name.isValid);
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notify_post((const char *)name.cString);
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}
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+ (int)addObserverForName:(DarwinNotificationName *)name
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queue:(dispatch_queue_t)queue
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usingBlock:(notify_handler_t)block
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{
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OWSAssertDebug(name.isValid);
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int observerToken;
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notify_register_dispatch((const char *)name.cString, &observerToken, queue, block);
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return observerToken;
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}
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+ (void)removeObserver:(int)observerToken
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{
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if (![self isValidObserver:observerToken]) {
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OWSFailDebug(@"Invalid observer token.");
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return;
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}
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notify_cancel(observerToken);
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}
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+ (void)setState:(uint64_t)state forObserver:(int)observerToken
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{
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if (![self isValidObserver:observerToken]) {
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OWSFailDebug(@"Invalid observer token.");
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return;
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}
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notify_set_state(observerToken, state);
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}
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+ (uint64_t)getStateForObserver:(int)observerToken
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{
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if (![self isValidObserver:observerToken]) {
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OWSFailDebug(@"Invalid observer token.");
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return 0;
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}
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uint64_t state;
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notify_get_state(observerToken, &state);
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return state;
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}
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@end
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