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93 lines
2.5 KiB
C
93 lines
2.5 KiB
C
#ifndef MEMORYSTATUS_ASSERTION_HELPERS_H
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#define MEMORYSTATUS_ASSERTION_HELPERS_H
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#include <stdlib.h>
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#include <stdint.h>
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#define ASSERTION_STATE_IS_SET true
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#define ASSERTION_STATE_IS_RELINQUISHED false
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/* Helper functions for setting and checking memorystatus assertions
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* on processes.
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*/
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/*
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* Set the jetsam priority and user data for a process.
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*
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* If this request is assertion driven, the kernel will
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* set the process's assertion priority.
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*
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* If this request is not assertion driven, the kernel
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* will set the process's requested priority.
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*
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* The kernel will then apply policy and move the process
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* to the appropriate jetsam priority.
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*
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* Returns: 0 on success
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* non-0 on failure
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*/
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int
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set_priority(pid_t pid, int32_t priority, uint64_t user_data, boolean_t is_assertion_driven);
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/*
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* Return: true on success
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* false on failure --> this asserts a failure and quits test
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*/
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boolean_t
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check_properties(pid_t pid, int32_t expected_priority, int32_t expected_limit_mb, uint64_t expected_user_data, boolean_t expected_assertion_state, const char *test);
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/*
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* Set the active and inactive memlimits for a process.
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* Set the fatalness for each limit.
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*
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* Returns: 0 on success
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* non-zero on failure
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*/
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int
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set_memlimits(
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pid_t pid,
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int32_t active_limit_mb, int32_t inactive_limit_mb,
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boolean_t active_is_fatal, boolean_t inactive_is_fatal);
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/*
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* Returns: 0 on success
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* non-0 on failure
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*/
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int
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set_assertion_priority(pid_t pid, int32_t priority, uint64_t user_data);
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/*
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* Returns: 0 on success
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* non-0 on failure
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*/
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int
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relinquish_assertion_priority(pid_t pid, uint64_t user_data);
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/*
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* Get the priority properties for a single process.
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*
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* This returns the process's effective jetsam priority, jetsam limit,
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* user_data (not kernel related), and proc's kernel state.
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* If this call fails, there is no reason to continue the test.
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*
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* Return: true on success
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* false on failure --> this asserts fail and test quits
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*/
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boolean_t
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get_priority_props(pid_t pid, boolean_t verbose, int32_t *priority, int32_t *limit_mb, uint64_t *user_data, uint32_t *state);
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/*
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* Input:
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* state: kernel state bits from the get_priority_props() call
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* expected_assertion_state:
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* true if process should be holding an assertion state.
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* false if no assertion state is held (eg: relinquished).
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*
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* Return true: verification passed
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* false: verification failed
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*/
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boolean_t
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verify_assertion_state(uint32_t state, boolean_t expected_assertion_state);
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#endif /* MEMORYSTATUS_ASSERTION_HELPERS_H */
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