src/src/store.h

   1 /*************************************************
   2 *     Exim - an Internet mail transport agent    *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge 1995 - 2009 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* Header for Exim's memory allocation functions */
   9
  10 #ifndef STORE_H
  11 #define STORE_H
  12
  13 /* Define symbols for identifying the store pools. */
  14
  15 enum { POOL_MAIN,       POOL_PERM,       POOL_SEARCH,
  16        POOL_TAINT_BASE,
  17        POOL_TAINT_MAIN = POOL_TAINT_BASE, POOL_TAINT_PERM, POOL_TAINT_SEARCH };
  18
  19 /* This variable (the one for the current pool) is set by store_get() to its
  20 yield, and by store_reset() to NULL. This allows string_cat() to optimize its
  21 store handling. */
  22
  23 extern void *store_last_get[6];
  24
  25 /* This variable contains the current store pool number. */
  26
  27 extern int store_pool;
  28
  29 /* Macros for calling the memory allocation routines with
  30 tracing information for debugging. */
  31
  32 #define store_extend(addr, tainted, old, new) \
  33   store_extend_3(addr, tainted, old, new, __FUNCTION__, __LINE__)
  34
  35 #define store_free(addr) \
  36         store_free_3(addr, __FUNCTION__, __LINE__)
  37 #define store_get(size, tainted) \
  38         store_get_3(size, tainted, __FUNCTION__, __LINE__)
  39 #define store_get_perm(size, tainted) \
  40         store_get_perm_3(size, tainted, __FUNCTION__, __LINE__)
  41 #define store_malloc(size) \
  42         store_malloc_3(size, __FUNCTION__, __LINE__)
  43 #define store_mark(void) \
  44         store_mark_3(__FUNCTION__, __LINE__)
  45 #define store_newblock(addr, tainted, newsize, datalen) \
  46         store_newblock_3(addr, tainted, newsize, datalen, __FUNCTION__, __LINE__)
  47 #define store_release_above(addr) \
  48         store_release_above_3(addr, __FUNCTION__, __LINE__)
  49 #define store_reset(mark) \
  50         store_reset_3(mark, store_pool, __FUNCTION__, __LINE__)
  51
  52
  53 /* The real functions */
  54 typedef void ** rmark;
  55
  56 extern BOOL    store_extend_3(void *, BOOL, int, int, const char *, int);
  57 extern void    store_free_3(void *, const char *, int);
  58 extern void   *store_get_3(int, BOOL, const char *, int)        ALLOC ALLOC_SIZE(1) WARN_UNUSED_RESULT;
  59 extern void   *store_get_perm_3(int, BOOL, const char *, int)   ALLOC ALLOC_SIZE(1) WARN_UNUSED_RESULT;
  60 extern void   *store_malloc_3(int, const char *, int)           ALLOC ALLOC_SIZE(1) WARN_UNUSED_RESULT;
  61 extern rmark   store_mark_3(const char *, int);
  62 extern void   *store_newblock_3(void *, BOOL, int, int, const char *, int);
  63 extern void    store_release_above_3(void *, const char *, int);
  64 extern rmark   store_reset_3(rmark, int, const char *, int);
  65
  66 #endif  /* STORE_H */
  67
  68 /* End of store.h */