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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "SettingsController.h"
#import "UIAlertView+Extensions.h"
#import "WALTAppDelegate.h"
#import "WALTClient.h"
@implementation SettingsController {
WALTClient *_client;
NSString *_status;
}
- (void)viewDidLoad {
[super viewDidLoad];
_client = ((WALTAppDelegate *)[UIApplication sharedApplication].delegate).client;
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
_status = [NSString string];
[self.tableView reloadData];
}
- (IBAction)ping:(id)sender {
NSTimeInterval start = _client.currentTime;
NSError *error = nil;
if (![_client sendCommand:WALTPingCommand error:&error]) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"WALT Connection Error" error:error];
[alert show];
} else {
NSData *response = [_client readResponseWithTimeout:kWALTReadTimeout];
if (!response) {
_status = @"Timed out waiting for ping response.";
} else {
NSTimeInterval delta = _client.currentTime - start;
_status = [NSString stringWithFormat:@"Ping response in %.2f ms.", delta * 1000];
}
}
[self.tableView reloadData];
}
- (IBAction)checkDrift:(id)sender {
NSError *error = nil;
if (![_client updateSyncBoundsWithError:&error]) {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"WALT Connection Error" error:error];
[alert show];
} else {
_status = [NSString stringWithFormat:@"Remote clock delayed between %lld and %lld µs.",
_client.minError, _client.maxError];
}
[self.tableView reloadData];
}
- (NSIndexPath *)tableView:(UITableView *)tableView
willSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath.section == 0 && indexPath.row == 0) {
// "Ping"
[self ping:tableView];
return nil;
} else if (indexPath.section == 0 && indexPath.row == 1) {
// "Check Drift"
[self checkDrift:tableView];
return nil;
}
return indexPath;
}
- (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section {
return (section == 0 ? _status : nil);
}
@end
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