104 lines
3.2 KiB
Mathematica
104 lines
3.2 KiB
Mathematica
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/*
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* libjingle
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* Copyright 2013 Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#if !defined(__has_feature) || !__has_feature(objc_arc)
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#error "This file requires ARC support."
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#endif
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#import "RTCSessionDescriptionSyncObserver.h"
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#import "RTCSessionDescription.h"
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@interface RTCSessionDescriptionSyncObserver ()
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// CondVar used to wait for, and signal arrival of, an SDP-related callback.
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@property(nonatomic, strong) NSCondition* condition;
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// Whether an SDP-related callback has fired; cleared before wait returns.
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@property(atomic, assign) BOOL signaled;
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@end
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@implementation RTCSessionDescriptionSyncObserver
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@synthesize error = _error;
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@synthesize sessionDescription = _sessionDescription;
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@synthesize success = _success;
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@synthesize condition = _condition;
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@synthesize signaled = _signaled;
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- (id)init {
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if ((self = [super init])) {
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if (!(_condition = [[NSCondition alloc] init]))
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self = nil;
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}
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return self;
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}
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- (void)signal {
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self.signaled = YES;
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[self.condition signal];
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}
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- (void)wait {
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[self.condition lock];
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if (!self.signaled)
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[self.condition wait];
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self.signaled = NO;
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[self.condition unlock];
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}
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#pragma mark - RTCSessionDescriptionDelegate methods
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- (void)peerConnection:(RTCPeerConnection*)peerConnection
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didCreateSessionDescription:(RTCSessionDescription*)sdp
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error:(NSError*)error {
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[self.condition lock];
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if (error) {
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self.success = NO;
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self.error = error.description;
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} else {
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self.success = YES;
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self.sessionDescription = sdp;
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}
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[self signal];
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[self.condition unlock];
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}
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- (void)peerConnection:(RTCPeerConnection*)peerConnection
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didSetSessionDescriptionWithError:(NSError*)error {
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[self.condition lock];
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if (error) {
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self.success = NO;
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self.error = error.description;
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} else {
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self.success = YES;
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}
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[self signal];
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[self.condition unlock];
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}
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@end
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