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#ifndef __systemtest_h__
#define __systemtest_h__
/**
* GPL, yabbadabba
*
* Set of functions to gather system information for the jack setup wizard.
*
* @author Florian Faber, faber@faberman.de
*
* @version 0.1 (2009-01-15) [FF]
* - initial version
*
**/
/**
* This function checks for the existence of known frequency scaling mechanisms
* in this system.
*
* @returns 0 if the system has no frequency scaling capabilities non-0 otherwise.
**/
int system_has_frequencyscaling();
/**
* This function determines wether the CPU has a variable clock speed if frequency
* scaling is available.
*
* @returns 0 if system doesn't use frequency scaling at the moment, non-0 otherwise
**/
int system_uses_frequencyscaling();
/**
* Tests wether the owner of this process is in the group 'name'.
*
* @returns 0 if the owner of this process is not in the group, non-0 otherwise
**/
int system_user_in_group(const char *name);
/***
* Checks for a definition in /etc/security/limits.conf that looks
* as if it allows RT scheduling priority.
*
* @returns 1 if there appears to be such a line
**/
int system_has_rtprio_limits_conf ();
/**
* Checks for the existence of the 'audio' group on this system
*
* @returns 0 is there is no 'audio' group, non-0 otherwise
**/
int system_has_audiogroup();
/**
* Checks for the existence of a group named 'name' on this system
*
* @returns 0 if not found, non-0 otherwise
**/
int system_has_group(const char * name);
/**
* Tests wether the owner of this process is in the 'audio' group.
*
* @returns 0 if the owner of this process is not in the audio group, non-0 otherwise
**/
int system_user_in_audiogroup();
/**
* Determines wether the owner of this process can enable rt priority.
*
* @returns 0 if this process can not be switched to rt prio, non-0 otherwise
**/
int system_user_can_rtprio();
long long unsigned int system_memlock_amount();
/**
* Checks wether the memlock limit is unlimited
*
* @returns 0 if the memlock limit is limited, non-0 otherwise
**/
int system_memlock_is_unlimited();
long long unsigned int system_available_physical_mem();
/**
* Gets the version of the currently running kernel
*
* @returns String with the full version of the kernel
**/
char* system_kernel_version();
/**
* Returns the username. The caller is in charge of disposal of
* the returned name.
*
* @returns Pointer to a username or NULL
**/
char* system_get_username();
#endif /* __jack_systemtest_h__ */
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