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device-manager: Expose the priority lists in the protocol extension.

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Also leave space for 'icon' and 'available' details too, althought currently this info is dummy.
This commit is contained in:
Colin Guthrie 2009-09-26 14:36:36 +01:00
parent 4dedba73a6
commit 8b2cc4def3
3 changed files with 86 additions and 38 deletions
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31
src/pulse/ext-device-manager.c
View file

@ -26,6 +26,7 @@
#include <pulse/context.h>
#include <pulse/gccmacro.h>
#include <pulse/xmalloc.h>
#include <pulsecore/macro.h>
#include <pulsecore/pstream-util.h>
@ -128,20 +129,48 @@ static void ext_device_manager_read_cb(pa_pdispatch *pd, uint32_t command, uint3
while (!pa_tagstruct_eof(t)) {
pa_ext_device_manager_info i;
pa_bool_t available;
memset(&i, 0, sizeof(i));
available = FALSE;
if (pa_tagstruct_gets(t, &i.name) < 0 ||
pa_tagstruct_gets(t, &i.description) < 0) {
pa_tagstruct_gets(t, &i.description) < 0 ||
pa_tagstruct_gets(t, &i.icon) < 0 ||
pa_tagstruct_get_boolean(t, &available) < 0 ||
pa_tagstruct_getu32(t, &i.n_role_priorities) < 0) {
pa_context_fail(o->context, PA_ERR_PROTOCOL);
goto finish;
}
i.available = (uint8_t)available;
if (i.n_role_priorities > 0) {
uint32_t j;
i.role_priorities = pa_xnew0(pa_ext_device_manager_role_priority_info, i.n_role_priorities+1);
for (j = 0; j < i.n_role_priorities; j++) {
if (pa_tagstruct_gets(t, &i.role_priorities[j].role) < 0 ||
pa_tagstruct_getu32(t, &i.role_priorities[j].priority) < 0) {
pa_context_fail(o->context, PA_ERR_PROTOCOL);
pa_xfree(i.role_priorities);
goto finish;
}
}
/* Terminate with an extra NULL entry, just to make sure */
i.role_priorities[j].role = NULL;
i.role_priorities[j].priority = 0;
}
if (o->callback) {
pa_ext_device_manager_read_cb_t cb = (pa_ext_device_manager_read_cb_t) o->callback;
cb(o->context, &i, 0, o->userdata);
}
pa_xfree(i.role_priorities);
}
}

9
src/pulse/ext-device-manager.h
View file

@ -33,11 +33,20 @@
PA_C_DECL_BEGIN
typedef struct pa_ext_device_manager_role_priority_info {
const char *role;
uint32_t priority;
} pa_ext_device_manager_role_priority_info;
/** Stores information about one device in the device database that is
* maintained by module-device-manager. \since 0.9.19 */
typedef struct pa_ext_device_manager_info {
const char *name; /**< Identifier string of the device. A string like "sink:" or similar followed by the name of the device. */
const char *description; /**< The description of the device when it was last seen, if applicable and saved */
const char *icon; /**< The icon given to the device */
uint8_t available; /**< Is the device currently available? */
uint32_t n_role_priorities; /**< How many role priorities do we have? */
pa_ext_device_manager_role_priority_info *role_priorities; /**< An array of role priority structures or NULL */
} pa_ext_device_manager_info;
/** Callback prototype for pa_ext_device_manager_test(). \since 0.9.19 */