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protocol-native: add message sending capability

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This patch adds the PA_COMMAND_SEND_OBJECT_MESSAGE command to protocol-native
so that clients can use the messaging feature introduced in the previous patch.

Sending messages can in effect replace the extension system for modules. The
approach is more flexible than the extension interface because a generic string
format is used to exchange information. Furthermore the messaging system can be
used for any object, not only for modules, and is easier to implement than
extensions.

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/51>
This commit is contained in:
Georg Chini 2020-01-14 10:15:36 +01:00 • committed by Tanu Kaskinen
parent cb3d12377c
commit 4cdc0053c0
9 changed files with 158 additions and 2 deletions
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3
src/pulsecore/native-common.h
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@ -187,6 +187,9 @@ enum {
* BOTH DIRECTIONS */
PA_COMMAND_REGISTER_MEMFD_SHMID,
/* Supported since protocol v34 (14.0) */
PA_COMMAND_SEND_OBJECT_MESSAGE,
PA_COMMAND_MAX
};