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Added snd_ctl_elem_info_is_owner and snd_ctl_elem_info_get_owner functions.

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Jaroslav Kysela 2001-04-23 09:15:09 +00:00
parent 301a62f90a
commit 5e5a429815
2 changed files with 27 additions and 1 deletions
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4
include/control.h
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@ -503,8 +503,12 @@ int snd_ctl_elem_info_is_inactive(const snd_ctl_elem_info_t *obj);
int snd_ctl_elem_info_is_locked(const snd_ctl_elem_info_t *obj); int snd_ctl_elem_info_is_locked(const snd_ctl_elem_info_t *obj);
int snd_ctl_elem_info_is_owner(const snd_ctl_elem_info_t *obj);
int snd_ctl_elem_info_is_indirect(const snd_ctl_elem_info_t *obj); int snd_ctl_elem_info_is_indirect(const snd_ctl_elem_info_t *obj);
pid_t snd_ctl_elem_info_get_owner(const snd_ctl_elem_info_t *obj);
unsigned int snd_ctl_elem_info_get_count(const snd_ctl_elem_info_t *obj); unsigned int snd_ctl_elem_info_get_count(const snd_ctl_elem_info_t *obj);
long snd_ctl_elem_info_get_min(const snd_ctl_elem_info_t *obj); long snd_ctl_elem_info_get_min(const snd_ctl_elem_info_t *obj);

24
src/control/control.c
View file

@ -1324,7 +1324,7 @@ int snd_ctl_elem_info_is_inactive(const snd_ctl_elem_info_t *obj)
} }
/** /**
* \brief Get info about status from a CTL element id/info * \brief Get info whether an element is locked
* \param obj CTL element id/info * \param obj CTL element id/info
* \return 0 if element value is currently changeable, 1 if it's locked by another application * \return 0 if element value is currently changeable, 1 if it's locked by another application
*/ */
@ -1334,6 +1334,17 @@ int snd_ctl_elem_info_is_locked(const snd_ctl_elem_info_t *obj)
return !!(obj->access & SNDRV_CTL_ELEM_ACCESS_LOCK); return !!(obj->access & SNDRV_CTL_ELEM_ACCESS_LOCK);
} }
/**
* \brief Get info if I own an element
* \param obj CTL element id/info
* \return 0 if element value is currently changeable, 1 if it's locked by another application
*/
int snd_ctl_elem_info_is_owner(const snd_ctl_elem_info_t *obj)
{
assert(obj);
return !!(obj->access & SNDRV_CTL_ELEM_ACCESS_OWNER);
}
/** /**
* \brief Get info about values passing policy from a CTL element id/info * \brief Get info about values passing policy from a CTL element id/info
* \param obj CTL element id/info * \param obj CTL element id/info
@ -1345,6 +1356,17 @@ int snd_ctl_elem_info_is_indirect(const snd_ctl_elem_info_t *obj)
return !!(obj->access & SNDRV_CTL_ELEM_ACCESS_INDIRECT); return !!(obj->access & SNDRV_CTL_ELEM_ACCESS_INDIRECT);
} }
/**
* \brief Get owner of a locked element
* \param obj CTL element id/info
* \return value entries count
*/
pid_t snd_ctl_elem_info_get_owner(const snd_ctl_elem_info_t *obj)
{
assert(obj);
return obj->owner;
}
/** /**
* \brief Get number of value entries from a CTL element id/info * \brief Get number of value entries from a CTL element id/info
* \param obj CTL element id/info * \param obj CTL element id/info