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comparison: xpcom/base/nsInterfaceRequestorAgg.h
xpcom/base/nsInterfaceRequestorAgg.h
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #ifndef nsInterfaceRequestorAgg_h__ | |
| 6 #define nsInterfaceRequestorAgg_h__ | |
| 7 | |
| 8 #include "nsError.h" | |
| 9 | |
| 10 class nsIEventTarget; | |
| 11 class nsIInterfaceRequestor; | |
| 12 | |
| 13 /** | |
| 14 * This function returns an instance of nsIInterfaceRequestor that aggregates | |
| 15 * two nsIInterfaceRequestor instances. Its GetInterface method queries | |
| 16 * aFirst for the requested interface and will query aSecond only if aFirst | |
| 17 * failed to supply the requested interface. Both aFirst and aSecond may | |
| 18 * be null, and will be released on the main thread when the aggregator is | |
| 19 * destroyed. | |
| 20 */ | |
| 21 extern nsresult | |
| 22 NS_NewInterfaceRequestorAggregation(nsIInterfaceRequestor *aFirst, | |
| 23 nsIInterfaceRequestor *aSecond, | |
| 24 nsIInterfaceRequestor **aResult); | |
| 25 | |
| 26 /** | |
| 27 * Like the previous method, but aFirst and aSecond will be released on the | |
| 28 * provided target thread. | |
| 29 */ | |
| 30 extern nsresult | |
| 31 NS_NewInterfaceRequestorAggregation(nsIInterfaceRequestor *aFirst, | |
| 32 nsIInterfaceRequestor *aSecond, | |
| 33 nsIEventTarget *aTarget, | |
| 34 nsIInterfaceRequestor **aResult); | |
| 35 | |
| 36 #endif // !defined( nsInterfaceRequestorAgg_h__ ) |
