Limit Low Power Mode to Apple Silicon

newmarcel · Mar 2, 2022 · 82ce12e · 82ce12e
1 parent c5d1ec5
commit 82ce12e
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Showing 5 changed files with 49 additions and 12 deletions.
diff --git a/Packages/KYADeviceInfo/Sources/KYADeviceInfo/KYADevice/KYADevice.m b/Packages/KYADeviceInfo/Sources/KYADeviceInfo/KYADevice/KYADevice.m
@@ -7,6 +7,7 @@
 //
 
 #import <KYADeviceInfo/KYADevice.h>
+#import <sys/utsname.h>
 #import "../KYADefines.h"
 #import "../KYABatteryMonitor/KYABatteryMonitor+Private.h"
 #import "../KYALowPowerModeMonitor/KYALowPowerModeMonitor+Private.h"
@@ -42,6 +43,7 @@ - (instancetype)init
     {
         self.batteryMonitor = [KYABatteryMonitor new];
         self.lowPowerModeMonitor = [KYALowPowerModeMonitor new];
+        self.lowPowerModeMonitor.device = self;
     }
     return self;
 }
@@ -96,7 +98,7 @@ - (void)setLowPowerModeMonitoringEnabled:(BOOL)lowPowerModeMonitoringEnabled
     if(lowPowerModeMonitoringEnabled)
     {
         // Do not start monitoring if the device does not support this feature
-        if([KYALowPowerModeMonitor supportsLowPowerMode] == NO) { return; }
+        if([lowPowerModeMonitor supportsLowPowerMode] == NO) { return; }
 
         AutoWeak weakSelf = self;
         lowPowerModeMonitor.lowPowerModeChangeHandler = ^(BOOL enabled) {
@@ -118,6 +120,29 @@ - (void)setLowPowerModeMonitoringEnabled:(BOOL)lowPowerModeMonitoringEnabled
     KYALog(@"Low Power Mode Monitoring: %@", lowPowerModeMonitoringEnabled ? @"YES" : @"NO");
 }
 
+#pragma mark - Architecture
+
+- (KYADeviceArchitecture)architecture
+{
+    struct utsname sysInfo;
+    if(uname(&sysInfo) == -1)
+    {
+        return KYADeviceArchitectureUnknown;
+    }
+
+    char *machine = sysInfo.machine;
+    if(strcmp(machine, "x86_64") == 0)
+    {
+        return KYADeviceArchitectureIntel;
+    }
+    else if(strcmp(machine, "arm64") == 0)
+    {
+        return KYADeviceArchitectureAppleSilicon;
+    }
+
+    return KYADeviceArchitectureUnknown;
+}
+
 #pragma mark - Notifications
 
 - (void)deviceParameterDidChange:(KYADeviceParameter)deviceParameter

diff --git a/...ADeviceInfo/Sources/KYADeviceInfo/KYALowPowerModeMonitor/KYALowPowerModeMonitor+Private.h b/...ADeviceInfo/Sources/KYADeviceInfo/KYALowPowerModeMonitor/KYALowPowerModeMonitor+Private.h
@@ -8,13 +8,15 @@
 
 #import <Foundation/Foundation.h>
 #import <KYADeviceInfo/KYALowPowerModeMonitor.h>
+#import <KYADeviceInfo/KYADevice.h>
 
 NS_ASSUME_NONNULL_BEGIN
 
 typedef void(^KYALowPowerModeChangeBlock)(BOOL enabled);
 
 @interface KYALowPowerModeMonitor ()
 @property (nonatomic, getter=isRegistered) BOOL registered;
+@property (weak, nonatomic, nullable) KYADevice *device;
 
 /// An optional block that will be called when the Low Power Mode status
 /// changes and -registerForLowPowerModeChanges was called.

diff --git a/Packages/KYADeviceInfo/Sources/KYADeviceInfo/KYALowPowerModeMonitor/KYALowPowerModeMonitor.m b/Packages/KYADeviceInfo/Sources/KYADeviceInfo/KYALowPowerModeMonitor/KYALowPowerModeMonitor.m
@@ -11,11 +11,16 @@
 
 @implementation KYALowPowerModeMonitor
 
-+ (BOOL)supportsLowPowerMode
+- (BOOL)supportsLowPowerMode
 {
     if(@available(macOS 12.0, *))
     {
-        return YES;
+        Auto device = self.device ?: KYADevice.currentDevice;
+        if(device.architecture == KYADeviceArchitectureAppleSilicon)
+        {
+            return YES;
+        }
+        return NO;
     }
     else
     {
@@ -28,11 +33,6 @@ - (void)dealloc
     [self unregisterFromLowPowerModeChanges];
 }
 
-- (BOOL)supportsLowPowerMode
-{
-    return [[self class] supportsLowPowerMode];
-}
-
 - (BOOL)isLowPowerModeEnabled
 {
     if(@available(macOS 12.0, *))

diff --git a/Packages/KYADeviceInfo/Sources/KYADeviceInfo/include/KYADeviceInfo/KYADevice.h b/Packages/KYADeviceInfo/Sources/KYADeviceInfo/include/KYADeviceInfo/KYADevice.h
@@ -19,12 +19,26 @@ typedef NSString *KYADeviceParameter;
 FOUNDATION_EXPORT const KYADeviceParameter KYADeviceParameterBattery;
 FOUNDATION_EXPORT const KYADeviceParameter KYADeviceParameterLowPowerMode;
 
+/// The hardware architecture of a device
+typedef NS_ENUM(NSUInteger, KYADeviceArchitecture)
+{
+    /// An unknown architecture
+    KYADeviceArchitectureUnknown = 0,
+    /// The Intel x86_64 architecture
+    KYADeviceArchitectureIntel,
+    /// The arm64 architecture
+    KYADeviceArchitectureAppleSilicon
+};
+
 /// Provides access to physical device parameters, like battery status and Low Power Mode.
 @interface KYADevice : NSObject
 
 /// Represents the current device
 @property (class, nonatomic, readonly) KYADevice *currentDevice;
 
+/// The hardware architecture of the device
+@property (nonatomic, readonly) KYADeviceArchitecture architecture;
+
 #pragma mark - Battery Monitor
 
 /// The battery status monitor for devices that support this feature.

diff --git a/Packages/KYADeviceInfo/Sources/KYADeviceInfo/include/KYADeviceInfo/KYALowPowerModeMonitor.h b/Packages/KYADeviceInfo/Sources/KYADeviceInfo/include/KYADeviceInfo/KYALowPowerModeMonitor.h
@@ -14,10 +14,6 @@ NS_ASSUME_NONNULL_BEGIN
 @interface KYALowPowerModeMonitor : NSObject
 
 /// Returns `YES` if the current device supports the Low Power Mode.
-@property (class, nonatomic, readonly) BOOL supportsLowPowerMode;
-
-/// Convenience property to determine if the current device supports the Low Power Mode.
-/// @note Please prefer using the `+supportsLowPowerMode` class property.
 @property (nonatomic, readonly) BOOL supportsLowPowerMode;
 
 /// Returns `YES` if Low Power Mode is currently enabled.