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

   1
   2 /*
   3  * Copyright (C) Igor Sysoev
   4  * Copyright (C) Nginx, Inc.
   5  */
   6
   7
   8 #include <ngx_config.h>
   9 #include <ngx_core.h>
  10
  11
  12 ngx_uint_t  ngx_pagesize;
  13 ngx_uint_t  ngx_pagesize_shift;
  14 ngx_uint_t  ngx_cacheline_size;
  15
  16
  17 void *
  18 ngx_alloc(size_t size, ngx_log_t *log)
  19 {
  20     void  *p;
  21
  22     p = malloc(size);
  23     if (p == NULL) {
  24         ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
  25                       "malloc(%uz) failed", size);
  26     }
  27
  28     ngx_log_debug2(NGX_LOG_DEBUG_ALLOC, log, 0, "malloc: %p:%uz", p, size);
  29
  30     return p;
  31 }
  32
  33
  34 void *
  35 ngx_calloc(size_t size, ngx_log_t *log)
  36 {
  37     void  *p;
  38
  39     p = ngx_alloc(size, log);
  40
  41     if (p) {
  42         ngx_memzero(p, size);
  43     }
  44
  45     return p;
  46 }
  47
  48
  49 #if (NGX_HAVE_POSIX_MEMALIGN)
  50
  51 void *
  52 ngx_memalign(size_t alignment, size_t size, ngx_log_t *log)
  53 {
  54     void  *p;
  55     int    err;
  56
  57     err = posix_memalign(&p, alignment, size);
  58
  59     if (err) {
  60         ngx_log_error(NGX_LOG_EMERG, log, err,
  61                       "posix_memalign(%uz, %uz) failed", alignment, size);
  62         p = NULL;
  63     }
  64
  65     ngx_log_debug3(NGX_LOG_DEBUG_ALLOC, log, 0,
  66                    "posix_memalign: %p:%uz @%uz", p, size, alignment);
  67
  68     return p;
  69 }
  70
  71 #elif (NGX_HAVE_MEMALIGN)
  72
  73 void *
  74 ngx_memalign(size_t alignment, size_t size, ngx_log_t *log)
  75 {
  76     void  *p;
  77
  78     p = memalign(alignment, size);
  79     if (p == NULL) {
  80         ngx_log_error(NGX_LOG_EMERG, log, ngx_errno,
  81                       "memalign(%uz, %uz) failed", alignment, size);
  82     }
  83
  84     ngx_log_debug3(NGX_LOG_DEBUG_ALLOC, log, 0,
  85                    "memalign: %p:%uz @%uz", p, size, alignment);
  86
  87     return p;
  88 }
  89
  90 #endif