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pactl: Implement list message-handlers

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For better readability, "pactl list message-handlers" is introduced which
prints a formatted output of "pactl send-message /core list-handlers".

The patch also adds the functions pa_message_params_read_raw() and
pa_message_params_read_string() for easy parsing of the message response
string. Because the functions need to modify the parameter string,
the message handler and the pa_context_string_callback function now
receive a char* instead of a const char* as parameter argument.

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/51>
This commit is contained in:
Georg Chini 2020-01-14 11:31:39 +01:00 • committed by Tanu Kaskinen
parent 5c0ab52145
commit 4a28b164d1
15 changed files with 253 additions and 12 deletions
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2
src/pulse/introspect.h
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@ -498,7 +498,7 @@ pa_operation* pa_context_unload_module(pa_context *c, uint32_t idx, pa_context_s
/** @{ \name Messages */
/** Callback prototype for pa_context_send_message_to_object() \since 15.0 */
typedef void (*pa_context_string_cb_t)(pa_context *c, int success, const char *response, void *userdata);
typedef void (*pa_context_string_cb_t)(pa_context *c, int success, char *response, void *userdata);
/** Send a message to an object that registered a message handler. For more information
* see https://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/doc/messaging_api.txt. \since 15.0 */