src/os/unix/ngx_alloc.c

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