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Linux Cross Reference
Nginx/os/unix/ngx_alloc.h

Version: ~ [ nginx-0.8.20 ] ~ [ nginx-0.7.62 ] ~ [ nginx-0.6.39 ] ~ 
  1 
  2 /*
  3  * Copyright (C) Igor Sysoev
  4  */
  5 
  6 
  7 #ifndef _NGX_ALLOC_H_INCLUDED_
  8 #define _NGX_ALLOC_H_INCLUDED_
  9 
 10 
 11 #include <ngx_config.h>
 12 #include <ngx_core.h>
 13 
 14 
 15 void *ngx_alloc(size_t size, ngx_log_t *log);
 16 void *ngx_calloc(size_t size, ngx_log_t *log);
 17 
 18 #define ngx_free          free
 19 
 20 
 21 /*
 22  * Linux has memalign() or posix_memalign()
 23  * Solaris has memalign()
 24  * FreeBSD 7.0 has posix_memalign(), besides, early version's malloc()
 25  * aligns allocations bigger than page size at the page boundary
 26  */
 27 
 28 #if (NGX_HAVE_POSIX_MEMALIGN || NGX_HAVE_MEMALIGN)
 29 
 30 void *ngx_memalign(size_t alignment, size_t size, ngx_log_t *log);
 31 
 32 #else
 33 
 34 #define ngx_memalign(alignment, size, log)  ngx_alloc(size, log)
 35 
 36 #endif
 37 
 38 
 39 extern ngx_uint_t  ngx_pagesize;
 40 extern ngx_uint_t  ngx_pagesize_shift;
 41 extern ngx_uint_t  ngx_cacheline_size;
 42 
 43 
 44 #endif /* _NGX_ALLOC_H_INCLUDED_ */
 45
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