include/rseq/percpu-alloc.h

   1 /* SPDX-License-Identifier: MIT */
   2 /* SPDX-FileCopyrightText: 2024 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> */
   3
   4 #ifndef _RSEQ_PERCPU_ALLOC_H
   5 #define _RSEQ_PERCPU_ALLOC_H
   6
   7 #include <stddef.h>
   8 #include <sys/types.h>
   9
  10 /*
  11  * rseq/percpu-alloc.h
  12  */
  13
  14 struct rseq_percpu_pool;
  15
  16 struct rseq_percpu_pool *rseq_percpu_pool_create(size_t item_len,
  17                 size_t percpu_len, int max_nr_cpus,
  18                 int prot, int flags, int fd, off_t offset);
  19 int rseq_percpu_pool_destroy(struct rseq_percpu_pool *pool);
  20
  21 void *rseq_percpu_malloc(struct rseq_percpu_pool *pool);
  22 void *rseq_percpu_zmalloc(struct rseq_percpu_pool *pool);
  23 void rseq_percpu_free(void *ptr);
  24
  25 void *__rseq_percpu_ptr(void *ptr, int cpu);
  26
  27 #define rseq_percpu_ptr(ptr, cpu)       ((__typeof__(ptr)) __rseq_percpu_ptr(ptr, cpu))
  28
  29 struct rseq_percpu_pool_set *rseq_percpu_pool_set_create(void);
  30 int rseq_percpu_pool_set_destroy(struct rseq_percpu_pool_set *pool_set);
  31 int rseq_percpu_pool_set_add_pool(struct rseq_percpu_pool_set *pool_set,
  32                 struct rseq_percpu_pool *pool);
  33
  34 void *rseq_percpu_pool_set_malloc(struct rseq_percpu_pool_set *pool_set, size_t len);
  35 void *rseq_percpu_pool_set_zmalloc(struct rseq_percpu_pool_set *pool_set, size_t len);
  36
  37 #endif /* _RSEQ_PERCPU_ALLOC_H */