#include <sys/proc.h>
#include <sys/param.h>
+#define MEMORYSTATUS_ENTITLEMENT "com.apple.private.memorystatus"
+
#define JETSAM_PRIORITY_REVISION 2
#define JETSAM_PRIORITY_IDLE_HEAD -2
/* The value -1 is an alias to JETSAM_PRIORITY_DEFAULT */
#define JETSAM_PRIORITY_IDLE 0
-#define JETSAM_PRIORITY_IDLE_DEFERRED 1
+#define JETSAM_PRIORITY_IDLE_DEFERRED 1 /* Keeping this around till all xnu_quick_tests can be moved away from it.*/
+#define JETSAM_PRIORITY_AGING_BAND1 JETSAM_PRIORITY_IDLE_DEFERRED
#define JETSAM_PRIORITY_BACKGROUND_OPPORTUNISTIC 2
+#define JETSAM_PRIORITY_AGING_BAND2 JETSAM_PRIORITY_BACKGROUND_OPPORTUNISTIC
#define JETSAM_PRIORITY_BACKGROUND 3
+#define JETSAM_PRIORITY_ELEVATED_INACTIVE JETSAM_PRIORITY_BACKGROUND
#define JETSAM_PRIORITY_MAIL 4
#define JETSAM_PRIORITY_PHONE 5
#define JETSAM_PRIORITY_UI_SUPPORT 8
pid_t pid;
int32_t priority;
uint64_t user_data;
- int32_t limit;
+ int32_t limit; /* MB */
uint32_t state;
} memorystatus_priority_entry_t;
typedef struct jetsam_snapshot_entry {
pid_t pid;
- char name[MAXCOMLEN+1];
+ char name[(2*MAXCOMLEN)+1];
int32_t priority;
- uint32_t pages;
- uint32_t max_pages;
uint32_t state;
- uint32_t killed;
- uint64_t user_data;
- uint8_t uuid[16];
uint32_t fds;
- uint32_t max_pages_lifetime;
- uint32_t purgeable_pages;
+ uint8_t uuid[16];
+ uint64_t user_data;
+ uint64_t killed;
+ uint64_t pages;
+ uint64_t max_pages;
+ uint64_t max_pages_lifetime;
+ uint64_t purgeable_pages;
+ uint64_t jse_internal_pages;
+ uint64_t jse_internal_compressed_pages;
+ uint64_t jse_purgeable_nonvolatile_pages;
+ uint64_t jse_purgeable_nonvolatile_compressed_pages;
+ uint64_t jse_alternate_accounting_pages;
+ uint64_t jse_alternate_accounting_compressed_pages;
+ uint64_t jse_iokit_mapped_pages;
+ uint64_t jse_page_table_pages;
+ uint64_t jse_memory_region_count;
+ uint64_t jse_gencount; /* memorystatus_thread generation counter */
+ uint64_t jse_starttime; /* absolute time when process starts */
+ uint64_t jse_killtime; /* absolute time when jetsam chooses to kill a process */
+ uint64_t jse_idle_delta; /* time spent in idle band */
+ uint64_t jse_coalition_jetsam_id; /* we only expose coalition id for COALITION_TYPE_JETSAM */
struct timeval cpu_time;
} memorystatus_jetsam_snapshot_entry_t;
typedef struct jetsam_snapshot {
- uint64_t snapshot_time;
- uint64_t notification_time;
- memorystatus_kernel_stats_t stats;
+ uint64_t snapshot_time; /* absolute time snapshot was initialized */
+ uint64_t notification_time; /* absolute time snapshot was consumed */
+ uint64_t js_gencount; /* memorystatus_thread generation counter */
+ memorystatus_kernel_stats_t stats; /* system stat when snapshot is initialized */
size_t entry_count;
memorystatus_jetsam_snapshot_entry_t entries[];
} memorystatus_jetsam_snapshot_t;
kMemorystatusKilledIdleExit
};
+/* Jetsam exit reason definitions */
+#define JETSAM_REASON_INVALID 0
+#define JETSAM_REASON_GENERIC 1
+#define JETSAM_REASON_MEMORY_HIGHWATER 2
+#define JETSAM_REASON_VNODE 3
+#define JETSAM_REASON_MEMORY_VMPAGESHORTAGE 4
+#define JETSAM_REASON_MEMORY_VMTHRASHING 5
+#define JETSAM_REASON_MEMORY_FCTHRASHING 6
+#define JETSAM_REASON_MEMORY_PERPROCESSLIMIT 7
+#define JETSAM_REASON_MEMORY_DIAGNOSTIC 8
+#define JETSAM_REASON_MEMORY_IDLE_EXIT 9
+#define JETSAM_REASON_CPULIMIT 10
+
/* Temporary, to prevent the need for a linked submission of ReportCrash */
/* Remove when <rdar://problem/13210532> has been integrated */
enum {
#define MEMORYSTATUS_CMD_GET_MEMLIMIT_PROPERTIES 8 /* Get memory limits plus attributes */
#define MEMORYSTATUS_CMD_PRIVILEGED_LISTENER_ENABLE 9 /* Set the task's status as a privileged listener w.r.t memory notifications */
#define MEMORYSTATUS_CMD_PRIVILEGED_LISTENER_DISABLE 10 /* Reset the task's status as a privileged listener w.r.t memory notifications */
+#define MEMORYSTATUS_CMD_AGGRESSIVE_JETSAM_LENIENT_MODE_ENABLE 11 /* Enable the 'lenient' mode for aggressive jetsam. See comments in kern_memorystatus.c near the top. */
+#define MEMORYSTATUS_CMD_AGGRESSIVE_JETSAM_LENIENT_MODE_DISABLE 12 /* Disable the 'lenient' mode for aggressive jetsam. */
+#define MEMORYSTATUS_CMD_GET_MEMLIMIT_EXCESS 13 /* Compute how much a process's phys_footprint exceeds inactive memory limit */
+#define MEMORYSTATUS_CMD_ELEVATED_INACTIVEJETSAMPRIORITY_ENABLE 14
+#define MEMORYSTATUS_CMD_ELEVATED_INACTIVEJETSAMPRIORITY_DISABLE 15
+
/* Commands that act on a group of processes */
#define MEMORYSTATUS_CMD_GRP_SET_PROPERTIES 100
#define MEMORYSTATUS_MEMLIMIT_ATTR_FATAL 0x1 /* if set, exceeding the memlimit is fatal */
-
#ifdef XNU_KERNEL_PRIVATE
/*
#define P_MEMSTAT_MEMLIMIT_ACTIVE_EXC_TRIGGERED 0x00008000 /* if set, supresses high-water-mark EXC_RESOURCE, allows one hit per active limit */
#define P_MEMSTAT_MEMLIMIT_INACTIVE_FATAL 0x00010000 /* if set, exceeding limit is fatal when the process is inactive */
#define P_MEMSTAT_MEMLIMIT_INACTIVE_EXC_TRIGGERED 0x00020000 /* if set, supresses high-water-mark EXC_RESOURCE, allows one hit per inactive limit */
+#define P_MEMSTAT_USE_ELEVATED_INACTIVE_BAND 0x00040000 /* if set, the process will go into this band & stay there when in the background instead
+ of the aging bands and/or the IDLE band. */
extern void memorystatus_init(void) __attribute__((section("__TEXT, initcode")));
extern int memorystatus_remove(proc_t p, boolean_t locked);
+int memorystatus_update_inactive_jetsam_priority_band(pid_t pid, uint32_t opflags, boolean_t effective_now);
+
+
extern int memorystatus_dirty_track(proc_t p, uint32_t pcontrol);
extern int memorystatus_dirty_set(proc_t p, boolean_t self, uint32_t pcontrol);
extern int memorystatus_dirty_get(proc_t p);
int memorystatus_knote_register(struct knote *kn);
void memorystatus_knote_unregister(struct knote *kn);
+#if CONFIG_MEMORYSTATUS
+boolean_t memorystatus_turnoff_exception_and_get_fatalness(boolean_t warning, const int max_footprint_mb);
+void memorystatus_on_ledger_footprint_exceeded(int warning, boolean_t is_fatal);
+void proc_memstat_terminated(proc_t p, boolean_t set);
+boolean_t memorystatus_proc_is_dirty_unsafe(void *v);
+#endif /* CONFIG_MEMORYSTATUS */
+
#if CONFIG_JETSAM
int memorystatus_get_pressure_status_kdp(void);
boolean_t memorystatus_kill_on_FC_thrashing(boolean_t async);
boolean_t memorystatus_kill_on_vnode_limit(void);
-void memorystatus_on_ledger_footprint_exceeded(int warning, const int max_footprint_mb);
-void proc_memstat_terminated(proc_t p, boolean_t set);
void jetsam_on_ledger_cpulimit_exceeded(void);
void memorystatus_pages_update(unsigned int pages_avail);
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