Re-review possible API Version 2.1 updates

[PortAudio-admin]

Issue created by @RossBencina

A number of changes have been identified which should go into the V19 release which require us to break binary compatibility with existing clients. These include:

• removal of struct version numbers
• global version number API
• add hostApiType field to stream info structure
• make the host api type a bitfield rather than a sequence

These will be made together soon and the API version number will be bumped to 2.1

[PortAudio-admin]

Comment by @RossBencina

This is really a meta-ticket. Each of the items listed here should be broken out into a separate ticket for review. I also need to go back and link into list discussions on these points. I will do this.

I note that adding hostApiType to the stream info structure is happening as part of the PortMixer patch merge.

[PortAudio-admin]

Comment by @RossBencina

related to:

#10 Pa_SetHostApiInitializationMask to determine which host APIs will be initialized at startup

[PortAudio-admin]

Comment by @RossBencina

Regarding structVersion fields: currently half our structs have them and half don't, so something needs to change. Need to track down mailing list discussion that recommended removing them.

[PortAudio-admin]

Comment by @RossBencina

Ticket closed. All issues it referred to are now split out into separate tickets:

• removal of struct version numbers: Remove structVersion field from PaHostApiInfo, PaDeviceInfo and PaStreamInfo #172
• global version number API Improved API library version API #173
• add hostApiType field to stream info structure Portaudio should expose host API specific stream information #169
• make the host api type a bitfield rather than a sequence (in doubt, but covered by Pa_SelectHostApis to specify which host APIs will be initialized at startup #10)

[PortAudio-admin]

Comment by @RossBencina

TRAC migration: propagating ticket status from TRAC

[PortAudio-admin]

Issue closed by @RossBencina