commit-slab.h

   1 #ifndef COMMIT_SLAB_H
   2 #define COMMIT_SLAB_H
   3
   4 #include "commit-slab-decl.h"
   5 #include "commit-slab-impl.h"
   6
   7 /*
   8  * define_commit_slab(slabname, elemtype) creates boilerplate code to define
   9  * a new struct (struct slabname) that is used to associate a piece of data
  10  * of elemtype to commits, and a few functions to use that struct.
  11  *
  12  * After including this header file, using:
  13  *
  14  * define_commit_slab(indegree, int);
  15  *
  16  * will let you call the following functions:
  17  *
  18  * - int *indegree_at(struct indegree *, struct commit *);
  19  *
  20  *   This function locates the data associated with the given commit in
  21  *   the indegree slab, and returns the pointer to it.  The location to
  22  *   store the data is allocated as necessary.
  23  *
  24  * - int *indegree_peek(struct indegree *, struct commit *);
  25  *
  26  *   This function is similar to indegree_at(), but it will return NULL
  27  *   until a call to indegree_at() was made for the commit.
  28  *
  29  * - void init_indegree(struct indegree *);
  30  *   void init_indegree_with_stride(struct indegree *, int);
  31  *
  32  *   Initializes the indegree slab that associates an array of integers
  33  *   to each commit. 'stride' specifies how big each array is.  The slab
  34  *   that is initialized by the variant without "_with_stride" associates
  35  *   each commit with an array of one integer.
  36  *
  37  * - void clear_indegree(struct indegree *);
  38  *
  39  *   Empties the slab.  The slab can be reused with the same stride
  40  *   without calling init_indegree() again or can be reconfigured to a
  41  *   different stride by calling init_indegree_with_stride().
  42  *
  43  *   Call this function before the slab falls out of scope to avoid
  44  *   leaking memory.
  45  */
  46
  47 #define define_commit_slab(slabname, elemtype) \
  48         declare_commit_slab(slabname, elemtype); \
  49         implement_static_commit_slab(slabname, elemtype)
  50
  51 #endif /* COMMIT_SLAB_H */