内存监控 初版

@@ -89,5 +89,5 @@ Pod::Spec.new do |s|
     ss.dependency             "YHEventReport/Core"
     s.framework    = "UIKit"
     ss.source_files = 'YHEventReport/YHEventReport/YHEventReport/YH_DeviceInfo/*.{h,m}'
-
+  end
 end

@@ -40,16 +40,11 @@ static YH_DeviceInfoMonitor *yh_globalDeviceInfoMonitor = nil;
 - (instancetype)init {
     self = [super init];
     if (self) {
-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(willEnterForeground) name:UIApplicationWillEnterForegroundNotification object:nil];
         [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didEnterBackground) name:UIApplicationDidEnterBackgroundNotification object:nil];
     }
     return self;
 }
 
-- (void)willEnterForeground {
-    [self reportMemoryStatusIfNeeded];
-}
-
 - (void)didEnterBackground {
     [self reportMemoryStatusIfNeeded];
 }
@@ -65,6 +60,9 @@ static YH_DeviceInfoMonitor *yh_globalDeviceInfoMonitor = nil;
                             @"iDeviceUsedMemory" : @(allUsedMemory),
                             @"iDeviceAvailableMemory" : @(availableMemory),
                          };
+#ifdef DEBUG
+    NSLog(@"memory status:%@", dict);
+#endif
     [[YHEventReport sharedInstance] reportWithPointType:YHPT_PERFORMANCE pointName:YHPH_MEMORY parameters:dict];
 }
 
@@ -89,29 +87,22 @@ static YH_DeviceInfoMonitor *yh_globalDeviceInfoMonitor = nil;
 }
 
 - (NSUInteger)allUsedMemory {
-    size_t length = 0;
-    int mib[6] = {0};
-    int pagesize = 0;
-    mib[0] = CTL_HW;
-    mib[1] = HW_PAGESIZE;
-    length = sizeof(pagesize);
-    if (sysctl(mib, 2, &pagesize, &length, NULL, 0) < 0) {
+    mach_port_t host_port = mach_host_self();
+    mach_msg_type_number_t host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
+    vm_size_t page_size;
+    vm_statistics_data_t vm_stat;
+    kern_return_t kern;
+    kern = host_page_size(host_port, &page_size);
+    if (kern != KERN_SUCCESS) {
         NSParameterAssert(NO);
         return 0;
     }
-    
-    mach_msg_type_number_t count = HOST_VM_INFO_COUNT;
-    
-    vm_statistics_data_t vmstat;
-    
-    if (host_statistics(mach_host_self(), HOST_VM_INFO, (host_info_t)&vmstat, &count) != KERN_SUCCESS) {
+    kern = host_statistics(host_port, HOST_VM_INFO, (host_info_t)&vm_stat, &host_size);
+    if (kern != KERN_SUCCESS) {
         NSParameterAssert(NO);
         return 0;
     }
-    
-    int wireMem = vmstat.wire_count * pagesize;
-    int activeMem = vmstat.active_count * pagesize;
-    return wireMem + activeMem;
+    return page_size * (vm_stat.active_count + vm_stat.inactive_count + vm_stat.wire_count);
 }
 
 - (NSUInteger)availableMemory {