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Diffstat (limited to 'libglusterfs/src/mem-pool.h')
| -rw-r--r-- | libglusterfs/src/mem-pool.h | 282 |
1 files changed, 0 insertions, 282 deletions
diff --git a/libglusterfs/src/mem-pool.h b/libglusterfs/src/mem-pool.h deleted file mode 100644 index 8bf38ca3aff..00000000000 --- a/libglusterfs/src/mem-pool.h +++ /dev/null @@ -1,282 +0,0 @@ -/* - Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> - This file is part of GlusterFS. - - This file is licensed to you under your choice of the GNU Lesser - General Public License, version 3 or any later version (LGPLv3 or - later), or the GNU General Public License, version 2 (GPLv2), in all - cases as published by the Free Software Foundation. -*/ - -#ifndef _MEM_POOL_H_ -#define _MEM_POOL_H_ - -#include "list.h" -#include "locking.h" -#include "atomic.h" -#include "logging.h" -#include "mem-types.h" -#include <stdlib.h> -#include <inttypes.h> -#include <string.h> -#include <stdarg.h> - -/* - * Need this for unit tests since inline functions - * access memory allocation and need to use the - * unit test versions - */ -#ifdef UNIT_TESTING -#include <stddef.h> -#include <setjmp.h> -#include <cmocka.h> -#endif - -#define GF_MEM_TRAILER_SIZE 8 -#define GF_MEM_HEADER_MAGIC 0xCAFEBABE -#define GF_MEM_TRAILER_MAGIC 0xBAADF00D -#define GF_MEM_INVALID_MAGIC 0xDEADC0DE - -struct mem_acct_rec { - const char *typestr; - size_t size; - size_t max_size; - uint32_t num_allocs; - uint32_t total_allocs; - uint32_t max_num_allocs; - gf_lock_t lock; -#ifdef DEBUG - struct list_head obj_list; -#endif -}; - -struct mem_acct { - uint32_t num_types; - gf_atomic_t refcnt; - struct mem_acct_rec rec[0]; -}; - -struct mem_header { - uint32_t type; - size_t size; - struct mem_acct *mem_acct; - uint32_t magic; -#ifdef DEBUG - struct list_head acct_list; -#endif - int padding[8]; -}; - -#define GF_MEM_HEADER_SIZE (sizeof (struct mem_header)) - -#ifdef DEBUG -struct mem_invalid { - uint32_t magic; - void *mem_acct; - uint32_t type; - size_t size; - void *baseaddr; -}; -#endif - -void * -__gf_calloc (size_t cnt, size_t size, uint32_t type, const char *typestr); - -void * -__gf_malloc (size_t size, uint32_t type, const char *typestr); - -void * -__gf_realloc (void *ptr, size_t size); - -int -gf_vasprintf (char **string_ptr, const char *format, va_list arg); - -int -gf_asprintf (char **string_ptr, const char *format, ...); - -void -__gf_free (void *ptr); - -int -gf_get_mem_type (void *ptr); - -static inline -void* __gf_default_malloc (size_t size) -{ - void *ptr = NULL; - - ptr = malloc (size); - if (!ptr) - gf_msg_nomem ("", GF_LOG_ALERT, size); - - return ptr; -} - -static inline -void* __gf_default_calloc (int cnt, size_t size) -{ - void *ptr = NULL; - - ptr = calloc (cnt, size); - if (!ptr) - gf_msg_nomem ("", GF_LOG_ALERT, (cnt * size)); - - return ptr; -} - -static inline -void* __gf_default_realloc (void *oldptr, size_t size) -{ - void *ptr = NULL; - - ptr = realloc (oldptr, size); - if (!ptr) - gf_msg_nomem ("", GF_LOG_ALERT, size); - - return ptr; -} - -#define MALLOC(size) __gf_default_malloc(size) -#define CALLOC(cnt,size) __gf_default_calloc(cnt,size) -#define REALLOC(ptr,size) __gf_default_realloc(ptr,size) - -#define FREE(ptr) \ - do { \ - if (ptr != NULL) { \ - free ((void *)ptr); \ - ptr = (void *)0xeeeeeeee; \ - } \ - } while (0) - -#define GF_CALLOC(nmemb, size, type) __gf_calloc (nmemb, size, type, #type) - -#define GF_MALLOC(size, type) __gf_malloc (size, type, #type) - -#define GF_REALLOC(ptr, size) __gf_realloc (ptr, size) - -#define GF_FREE(free_ptr) __gf_free (free_ptr) - -static inline -char *gf_strndup (const char *src, size_t len) -{ - char *dup_str = NULL; - - if (!src) { - goto out; - } - - dup_str = GF_CALLOC (1, len + 1, gf_common_mt_strdup); - if (!dup_str) { - goto out; - } - - memcpy (dup_str, src, len); -out: - return dup_str; -} - -static inline -char * gf_strdup (const char *src) -{ - - char *dup_str = NULL; - size_t len = 0; - - len = strlen (src) + 1; - - dup_str = GF_CALLOC(1, len, gf_common_mt_strdup); - - if (!dup_str) - return NULL; - - memcpy (dup_str, src, len); - - return dup_str; -} - -static inline void * -gf_memdup (const void *src, size_t size) -{ - void *dup_mem = NULL; - - dup_mem = GF_CALLOC(1, size, gf_common_mt_strdup); - if (!dup_mem) - goto out; - - memcpy (dup_mem, src, size); - -out: - return dup_mem; -} - -typedef struct pooled_obj_hdr { - unsigned long magic; - struct pooled_obj_hdr *next; - struct per_thread_pool_list *pool_list; - unsigned int power_of_two; -} pooled_obj_hdr_t; - -#define AVAILABLE_SIZE(p2) ((1 << (p2)) - sizeof(pooled_obj_hdr_t)) - -typedef struct per_thread_pool { - /* This never changes, so doesn't need a lock. */ - struct mem_pool *parent; - /* Everything else is protected by our own lock. */ - pooled_obj_hdr_t *hot_list; - pooled_obj_hdr_t *cold_list; -} per_thread_pool_t; - -typedef struct per_thread_pool_list { - /* - * These first two members are protected by the global pool lock. When - * a thread first tries to use any pool, we create one of these. We - * link it into the global list using thr_list so the pool-sweeper - * thread can find it, and use pthread_setspecific so this thread can - * find it. When the per-thread destructor runs, we "poison" the pool - * list to prevent further allocations. This also signals to the - * pool-sweeper thread that the list should be detached and freed after - * the next time it's swept. - */ - struct list_head thr_list; - unsigned int poison; - /* - * There's really more than one pool, but the actual number is hidden - * in the implementation code so we just make it a single-element array - * here. - */ - pthread_spinlock_t lock; - per_thread_pool_t pools[1]; -} per_thread_pool_list_t; - -struct mem_pool { - unsigned int power_of_two; - /* - * Updates to these are *not* protected by a global lock, so races - * could occur and the numbers might be slightly off. Don't expect - * them to line up exactly. It's the general trends that matter, and - * it's not worth the locked-bus-cycle overhead to make these precise. - */ - gf_atomic_t allocs_hot; - gf_atomic_t allocs_cold; - gf_atomic_t allocs_stdc; - gf_atomic_t frees_to_list; -}; - -void mem_pools_init_early (void); /* basic initialization of memory pools */ -void mem_pools_init_late (void); /* start the pool_sweeper thread */ -void mem_pools_fini (void); /* cleanup memory pools */ - -struct mem_pool * -mem_pool_new_fn (unsigned long sizeof_type, unsigned long count, char *name); - -#define mem_pool_new(type,count) mem_pool_new_fn (sizeof(type), count, #type) - -void mem_put (void *ptr); -void *mem_get (struct mem_pool *pool); -void *mem_get0 (struct mem_pool *pool); - -void mem_pool_destroy (struct mem_pool *pool); - -void gf_mem_acct_enable_set (void *ctx); - -#endif /* _MEM_POOL_H */ |