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EPOCH(9): Add epoch_drain_callbacks()

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This commit is contained in:
Sebastian Huber
2019-07-09 13:17:18 +02:00
parent 9ed693d723
commit 312f705d4f
3 changed files with 138 additions and 2 deletions
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8
rtemsbsd/include/sys/epoch.h
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@@ -34,6 +34,8 @@
#include <sys/cdefs.h>
#ifdef _KERNEL
#include <sys/lock.h>
#include <sys/_mutex.h>
#include <sys/_sx.h>
#include <sys/pcpu.h>
#include <rtems/score/percpudata.h>
#endif
@@ -66,6 +68,8 @@ struct epoch_record {
ck_epoch_record_t er_record;
struct epoch_tdlist er_tdlist;
uint32_t er_cpuid;
struct epoch_context er_drain_ctx;
struct epoch *er_parent;
} __aligned(EPOCH_ALIGN);
typedef struct epoch {
@@ -73,6 +77,9 @@ typedef struct epoch {
uintptr_t e_pcpu_record_offset;
int e_flags;
SLIST_ENTRY(epoch) e_link; /* List of all epochs */
struct sx e_drain_sx;
struct mtx e_drain_mtx;
volatile int e_drain_count;
} *epoch_t;
extern struct epoch _bsd_global_epoch;
@@ -110,6 +117,7 @@ void epoch_wait_preempt(epoch_t epoch);
void epoch_call(epoch_t epoch, epoch_context_t ctx,
void (*callback) (epoch_context_t));
void epoch_drain_callbacks(epoch_t epoch);
int _bsd_in_epoch(epoch_t epoch);
#define in_epoch(epoch) _bsd_in_epoch(epoch)