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This patch reduces the number of exception types by facilitating globally defined exceptions for common usage patterns shared by most services. In particular, RPC functions that demand a session-resource upgrade not longer reflect this condition via a session-specific exception but via the 'Out_of_ram' or 'Out_of_caps' types. Furthermore, the 'Parent::Service_denied', 'Parent::Unavailable', 'Root::Invalid_args', 'Root::Unavailable', 'Service::Invalid_args', 'Service::Unavailable', and 'Local_service::Factory::Denied' types have been replaced by the single 'Service_denied' exception type defined in 'session/session.h'. This consolidation eases the error handling (there are fewer exceptions to handle), alleviates the need to convert exceptions along the session-creation call chain, and avoids possible aliasing problems (catching the wrong type with the same name but living in a different scope). |
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| include/audio | ||
| lib | ||
| patches | ||
| ports | ||
| run | ||
| src | ||
| audio.list | ||
| README | ||
This repository contains device drivers ported from OpenBSD. Audio ##### The audio driver is ported from OpenBSD 5.7 and includes support for Intel HD Audio as well as for Ensoniq AudioPCI (ES1370) compatible soundcards. The HDA driver works on real hardware and Virtualbox whereas the ES1370 driver is only used in Qemu. Usage ===== You have to prepare the contrib sources for this repository by executing _./tool/ports/prepare_port dde_bsd_. Also you need to make sure to add the 'dde_bsd' repository to the REPOSITORIES variable in your 'etc/build.conf'. Example ======= The driver can be tested by executing the run script 'run/audio_out.run'. This example plays a sample file in a loop. The file format is header less two channel float 32 at 44100 Hz. You may use the 'sox' utility to create these audio files: ! sox -c 2 -r 44100 foo.wav foo.f32