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-rw-r--r--libglusterfs/src/iobuf.h209
1 files changed, 110 insertions, 99 deletions
diff --git a/libglusterfs/src/iobuf.h b/libglusterfs/src/iobuf.h
index 21184da1d2e..41ac5dd191c 100644
--- a/libglusterfs/src/iobuf.h
+++ b/libglusterfs/src/iobuf.h
@@ -32,8 +32,8 @@
#define MAP_ANONYMOUS MAP_ANON
#endif
-#define GF_ALIGN_BUF(ptr,bound) ((void *)((unsigned long)(ptr + bound - 1) & \
- (unsigned long)(~(bound - 1))))
+#define GF_ALIGN_BUF(ptr, bound) \
+ ((void *)((unsigned long)(ptr + bound - 1) & (unsigned long)(~(bound - 1))))
#define GF_IOBUF_ALIGN_SIZE 512
@@ -50,133 +50,144 @@ struct iobuf_arena;
struct iobuf_pool;
struct iobuf_init_config {
- size_t pagesize;
- int32_t num_pages;
+ size_t pagesize;
+ int32_t num_pages;
};
struct iobuf {
- union {
- struct list_head list;
- struct {
- struct iobuf *next;
- struct iobuf *prev;
- };
+ union {
+ struct list_head list;
+ struct {
+ struct iobuf *next;
+ struct iobuf *prev;
};
- struct iobuf_arena *iobuf_arena;
+ };
+ struct iobuf_arena *iobuf_arena;
- gf_lock_t lock; /* for ->ptr and ->ref */
- gf_atomic_t ref; /* 0 == passive, >0 == active */
+ gf_lock_t lock; /* for ->ptr and ->ref */
+ gf_atomic_t ref; /* 0 == passive, >0 == active */
- void *ptr; /* usable memory region by the consumer */
+ void *ptr; /* usable memory region by the consumer */
- void *free_ptr; /* in case of stdalloc, this is the
- one to be freed */
+ void *free_ptr; /* in case of stdalloc, this is the
+ one to be freed */
};
-
struct iobuf_arena {
- union {
- struct list_head list;
- struct {
- struct iobuf_arena *next;
- struct iobuf_arena *prev;
- };
+ union {
+ struct list_head list;
+ struct {
+ struct iobuf_arena *next;
+ struct iobuf_arena *prev;
};
-
- struct list_head all_list;
- size_t page_size; /* size of all iobufs in this arena */
- size_t arena_size;
- /* this is equal to rounded_size * num_iobufs.
- (rounded_size comes with gf_iobuf_get_pagesize().) */
- size_t page_count;
-
- struct iobuf_pool *iobuf_pool;
-
- void *mem_base;
- struct iobuf *iobufs; /* allocated iobufs list */
-
- int active_cnt;
- struct iobuf active; /* head node iobuf
- (unused by itself) */
- int passive_cnt;
- struct iobuf passive; /* head node iobuf
- (unused by itself) */
- uint64_t alloc_cnt; /* total allocs in this pool */
- int max_active; /* max active buffers at a given time */
+ };
+
+ struct list_head all_list;
+ size_t page_size; /* size of all iobufs in this arena */
+ size_t arena_size;
+ /* this is equal to rounded_size * num_iobufs.
+ (rounded_size comes with gf_iobuf_get_pagesize().) */
+ size_t page_count;
+
+ struct iobuf_pool *iobuf_pool;
+
+ void *mem_base;
+ struct iobuf *iobufs; /* allocated iobufs list */
+
+ int active_cnt;
+ struct iobuf active; /* head node iobuf
+ (unused by itself) */
+ int passive_cnt;
+ struct iobuf passive; /* head node iobuf
+ (unused by itself) */
+ uint64_t alloc_cnt; /* total allocs in this pool */
+ int max_active; /* max active buffers at a given time */
};
-
struct iobuf_pool {
- pthread_mutex_t mutex;
- size_t arena_size; /* size of memory region in
- arena */
- size_t default_page_size; /* default size of iobuf */
-
- int arena_cnt;
- struct list_head all_arenas;
- struct list_head arenas[GF_VARIABLE_IOBUF_COUNT];
- /* array of arenas. Each element of the array is a list of arenas
- holding iobufs of particular page_size */
-
- struct list_head filled[GF_VARIABLE_IOBUF_COUNT];
- /* array of arenas without free iobufs */
-
- struct list_head purge[GF_VARIABLE_IOBUF_COUNT];
- /* array of of arenas which can be purged */
-
- uint64_t request_misses; /* mostly the requests for higher
- value of iobufs */
- int rdma_device_count;
- struct list_head *mr_list[GF_RDMA_DEVICE_COUNT];
- void *device[GF_RDMA_DEVICE_COUNT];
- int (*rdma_registration)(void **, void*);
- int (*rdma_deregistration)(struct list_head**, struct iobuf_arena *);
-
+ pthread_mutex_t mutex;
+ size_t arena_size; /* size of memory region in
+ arena */
+ size_t default_page_size; /* default size of iobuf */
+
+ int arena_cnt;
+ struct list_head all_arenas;
+ struct list_head arenas[GF_VARIABLE_IOBUF_COUNT];
+ /* array of arenas. Each element of the array is a list of arenas
+ holding iobufs of particular page_size */
+
+ struct list_head filled[GF_VARIABLE_IOBUF_COUNT];
+ /* array of arenas without free iobufs */
+
+ struct list_head purge[GF_VARIABLE_IOBUF_COUNT];
+ /* array of of arenas which can be purged */
+
+ uint64_t request_misses; /* mostly the requests for higher
+ value of iobufs */
+ int rdma_device_count;
+ struct list_head *mr_list[GF_RDMA_DEVICE_COUNT];
+ void *device[GF_RDMA_DEVICE_COUNT];
+ int (*rdma_registration)(void **, void *);
+ int (*rdma_deregistration)(struct list_head **, struct iobuf_arena *);
};
-
-struct iobuf_pool *iobuf_pool_new (void);
-void iobuf_pool_destroy (struct iobuf_pool *iobuf_pool);
-struct iobuf *iobuf_get (struct iobuf_pool *iobuf_pool);
-void iobuf_unref (struct iobuf *iobuf);
-struct iobuf *iobuf_ref (struct iobuf *iobuf);
-void iobuf_pool_destroy (struct iobuf_pool *iobuf_pool);
-void iobuf_to_iovec(struct iobuf *iob, struct iovec *iov);
+struct iobuf_pool *
+iobuf_pool_new(void);
+void
+iobuf_pool_destroy(struct iobuf_pool *iobuf_pool);
+struct iobuf *
+iobuf_get(struct iobuf_pool *iobuf_pool);
+void
+iobuf_unref(struct iobuf *iobuf);
+struct iobuf *
+iobuf_ref(struct iobuf *iobuf);
+void
+iobuf_pool_destroy(struct iobuf_pool *iobuf_pool);
+void
+iobuf_to_iovec(struct iobuf *iob, struct iovec *iov);
#define iobuf_ptr(iob) ((iob)->ptr)
#define iobpool_default_pagesize(iobpool) ((iobpool)->default_page_size)
#define iobuf_pagesize(iob) (iob->iobuf_arena->page_size)
-
struct iobref {
- gf_lock_t lock;
- gf_atomic_t ref;
- struct iobuf **iobrefs;
- int allocated;
- int used;
+ gf_lock_t lock;
+ gf_atomic_t ref;
+ struct iobuf **iobrefs;
+ int allocated;
+ int used;
};
-struct iobref *iobref_new (void);
-struct iobref *iobref_ref (struct iobref *iobref);
-void iobref_unref (struct iobref *iobref);
-int iobref_add (struct iobref *iobref, struct iobuf *iobuf);
-int iobref_merge (struct iobref *to, struct iobref *from);
-void iobref_clear (struct iobref *iobref);
+struct iobref *
+iobref_new(void);
+struct iobref *
+iobref_ref(struct iobref *iobref);
+void
+iobref_unref(struct iobref *iobref);
+int
+iobref_add(struct iobref *iobref, struct iobuf *iobuf);
+int
+iobref_merge(struct iobref *to, struct iobref *from);
+void
+iobref_clear(struct iobref *iobref);
-size_t iobuf_size (struct iobuf *iobuf);
-size_t iobref_size (struct iobref *iobref);
-void iobuf_stats_dump (struct iobuf_pool *iobuf_pool);
+size_t
+iobuf_size(struct iobuf *iobuf);
+size_t
+iobref_size(struct iobref *iobref);
+void
+iobuf_stats_dump(struct iobuf_pool *iobuf_pool);
struct iobuf *
-iobuf_get2 (struct iobuf_pool *iobuf_pool, size_t page_size);
+iobuf_get2(struct iobuf_pool *iobuf_pool, size_t page_size);
struct iobuf *
-iobuf_get_page_aligned (struct iobuf_pool *iobuf_pool, size_t page_size,
- size_t align_size);
+iobuf_get_page_aligned(struct iobuf_pool *iobuf_pool, size_t page_size,
+ size_t align_size);
int
-iobuf_copy (struct iobuf_pool *iobuf_pool, const struct iovec *iovec_src,
- int iovcnt, struct iobref **iobref, struct iobuf **iobuf,
- struct iovec *iov_dst);
+iobuf_copy(struct iobuf_pool *iobuf_pool, const struct iovec *iovec_src,
+ int iovcnt, struct iobref **iobref, struct iobuf **iobuf,
+ struct iovec *iov_dst);
#endif /* !_IOBUF_H_ */
generated by cgit (git 2.34.1) at 2024-11-14 07:28:03 +0000