| 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 */ |