release/src/router/nginx/src/os/unix/ngx_alloc.h

   1
   2 /*
   3  * Copyright (C) Igor Sysoev
   4  * Copyright (C) Nginx, Inc.
   5  */
   6
   7
   8 #ifndef _NGX_ALLOC_H_INCLUDED_
   9 #define _NGX_ALLOC_H_INCLUDED_
  10
  11
  12 #include <ngx_config.h>
  13 #include <ngx_core.h>
  14
  15
  16 void *ngx_alloc(size_t size, ngx_log_t *log);
  17 void *ngx_calloc(size_t size, ngx_log_t *log);
  18
  19 #define ngx_free          free
  20
  21
  22 /*
  23  * Linux has memalign() or posix_memalign()
  24  * Solaris has memalign()
  25  * FreeBSD 7.0 has posix_memalign(), besides, early version's malloc()
  26  * aligns allocations bigger than page size at the page boundary
  27  */
  28
  29 #if (NGX_HAVE_POSIX_MEMALIGN || NGX_HAVE_MEMALIGN)
  30
  31 void *ngx_memalign(size_t alignment, size_t size, ngx_log_t *log);
  32
  33 #else
  34
  35 #define ngx_memalign(alignment, size, log)  ngx_alloc(size, log)
  36
  37 #endif
  38
  39
  40 extern ngx_uint_t  ngx_pagesize;
  41 extern ngx_uint_t  ngx_pagesize_shift;
  42 extern ngx_uint_t  ngx_cacheline_size;
  43
  44
  45 #endif /* _NGX_ALLOC_H_INCLUDED_ */