/src/git/commit-slab-impl.h

Source
#ifndef COMMIT_SLAB_IMPL_H
#define COMMIT_SLAB_IMPL_H

#define implement_static_commit_slab(slabname, elemtype) \
  implement_commit_slab(slabname, elemtype, MAYBE_UNUSED static)

#define implement_shared_commit_slab(slabname, elemtype) \
  implement_commit_slab(slabname, elemtype, )

#define implement_commit_slab(slabname, elemtype, scope)    \
                  \
scope void init_ ##slabname## _with_stride(struct slabname *s,    \
               unsigned stride) \
{                 \
  unsigned int elem_size;           \
  if (!stride)             \
    stride = 1;           \
  s->stride = stride;           \
  elem_size = sizeof(elemtype) * stride;        \
  s->slab_size = COMMIT_SLAB_SIZE / elem_size;     \
  s->slab_count = 0;            \
  s->slab = NULL;             \
}                  \
                  \
scope void init_ ##slabname(struct slabname *s)       \
{                 \
  init_ ##slabname## _with_stride(s, 1);       \
}                  \
                  \
scope void clear_ ##slabname(struct slabname *s)      \
{                 \
  unsigned int i;             \
  for (i = 0; i < s->slab_count; i++)       \
    free(s->slab[i]);         \
  s->slab_count = 0;            \
  FREE_AND_NULL(s->slab);            \
}                  \
                  \
scope void deep_clear_ ##slabname(struct slabname *s, void (*free_fn)(elemtype *)) \
{                 \
  unsigned int i;             \
  for (i = 0; i < s->slab_count; i++) {       \
    unsigned int j;           \
    if (!s->slab[i])         \
      continue;         \
    for (j = 0; j < s->slab_size; j++)     \
      free_fn(&s->slab[i][j * s->stride]);   \
  }               \
  clear_ ##slabname(s);            \
}                  \
                  \
scope elemtype *slabname## _at_peek(struct slabname *s,     \
              const struct commit *c, \
              int add_if_missing)   \
{                 \
  unsigned int nth_slab, nth_slot;        \
                  \
  nth_slab = c->index / s->slab_size;       \
  nth_slot = c->index % s->slab_size;       \
                  \
  if (s->slab_count <= nth_slab) {       \
    unsigned int i;           \
    if (!add_if_missing)         \
      return NULL;         \
    REALLOC_ARRAY(s->slab, nth_slab + 1);      \
    for (i = s->slab_count; i <= nth_slab; i++)   \
      s->slab[i] = NULL;       \
    s->slab_count = nth_slab + 1;       \
  }               \
  if (!s->slab[nth_slab]) {         \
    if (!add_if_missing)         \
      return NULL;         \
    s->slab[nth_slab] = xcalloc(s->slab_size,   \
              sizeof(**s->slab) * s->stride);   \
  }                \
  return &s->slab[nth_slab][nth_slot * s->stride];   \
}                  \
                  \
scope elemtype *slabname## _at(struct slabname *s,      \
               const struct commit *c)  \
{                 \
  return slabname##_at_peek(s, c, 1);        \
}                  \
                  \
scope elemtype *slabname## _peek(struct slabname *s,      \
               const struct commit *c)  \
{                 \
  return slabname##_at_peek(s, c, 0);        \
}                  \
                  \
struct slabname

/*
 * Note that this redundant forward declaration is required
 * to allow a terminating semicolon, which makes instantiations look
 * like function declarations.  I.e., the expansion of
 *
 *    implement_commit_slab(indegree, int, static);
 *
 * ends in 'struct indegree;'.  This would otherwise
 * be a syntax error according (at least) to ISO C.  It's hard to
 * catch because GCC silently parses it by default.
 */

#endif  /* COMMIT_SLAB_IMPL_H */

Line	Count	Source
1		#ifndef COMMIT_SLAB_IMPL_H
2		#define COMMIT_SLAB_IMPL_H
3
4		#define implement_static_commit_slab(slabname, elemtype) \
5		implement_commit_slab(slabname, elemtype, MAYBE_UNUSED static)
6
7		#define implement_shared_commit_slab(slabname, elemtype) \
8		implement_commit_slab(slabname, elemtype, )
9
10		#define implement_commit_slab(slabname, elemtype, scope) \
11		\
12		scope void init_ ##slabname## _with_stride(struct slabname *s, \
13	0	unsigned stride) \
14	0	{ \
15	0	unsigned int elem_size; \
16	0	if (!stride) \
17	0	stride = 1; \
18	0	s->stride = stride; \
19	0	elem_size = sizeof(elemtype) * stride; \
20	0	s->slab_size = COMMIT_SLAB_SIZE / elem_size; \
21	0	s->slab_count = 0; \
22	0	s->slab = NULL; \
23	0	} \ Unexecuted instantiation: object-name.c:init_contains_cache_with_stride Unexecuted instantiation: remote.c:init_contains_cache_with_stride Unexecuted instantiation: revision.c:init_contains_cache_with_stride Unexecuted instantiation: shallow.c:init_contains_cache_with_stride Unexecuted instantiation: submodule.c:init_contains_cache_with_stride Unexecuted instantiation: bisect.c:init_contains_cache_with_stride Unexecuted instantiation: commit-graph.c:init_commit_pos_with_stride Unexecuted instantiation: commit-graph.c:init_commit_graph_data_slab_with_stride Unexecuted instantiation: commit-reach.c:init_contains_cache_with_stride Unexecuted instantiation: commit.c:init_contains_cache_with_stride Unexecuted instantiation: commit.c:init_merge_desc_slab_with_stride Unexecuted instantiation: diff-lib.c:init_contains_cache_with_stride Unexecuted instantiation: fetch-pack.c:init_contains_cache_with_stride Unexecuted instantiation: log-tree.c:init_contains_cache_with_stride Unexecuted instantiation: merge-ort.c:init_contains_cache_with_stride Unexecuted instantiation: sequencer.c:init_contains_cache_with_stride
24		\
25	0	scope void init_ ##slabname(struct slabname *s) \
26	0	{ \
27	0	init_ ##slabname## _with_stride(s, 1); \
28	0	} \ Unexecuted instantiation: object-name.c:init_contains_cache Unexecuted instantiation: remote.c:init_contains_cache Unexecuted instantiation: init_revision_sources Unexecuted instantiation: revision.c:init_indegree_slab Unexecuted instantiation: revision.c:init_author_date_slab Unexecuted instantiation: revision.c:init_saved_parents Unexecuted instantiation: revision.c:init_contains_cache Unexecuted instantiation: shallow.c:init_commit_depth Unexecuted instantiation: shallow.c:init_ref_bitmap Unexecuted instantiation: shallow.c:init_contains_cache Unexecuted instantiation: submodule.c:init_contains_cache Unexecuted instantiation: bisect.c:init_commit_weight Unexecuted instantiation: bisect.c:init_contains_cache Unexecuted instantiation: bloom.c:init_bloom_filter_slab Unexecuted instantiation: commit-graph.c:init_topo_level_slab Unexecuted instantiation: commit-graph.c:init_commit_pos Unexecuted instantiation: commit-graph.c:init_commit_graph_data_slab Unexecuted instantiation: commit-reach.c:init_bit_arrays Unexecuted instantiation: commit-reach.c:init_best_branch_base Unexecuted instantiation: commit-reach.c:init_contains_cache Unexecuted instantiation: commit.c:init_buffer_slab Unexecuted instantiation: commit.c:init_indegree_slab Unexecuted instantiation: commit.c:init_author_date_slab Unexecuted instantiation: commit.c:init_contains_cache Unexecuted instantiation: commit.c:init_merge_desc_slab Unexecuted instantiation: diff-lib.c:init_contains_cache Unexecuted instantiation: fetch-pack.c:init_contains_cache Unexecuted instantiation: log-tree.c:init_contains_cache Unexecuted instantiation: merge-ort.c:init_contains_cache Unexecuted instantiation: sequencer.c:init_commit_todo_item Unexecuted instantiation: sequencer.c:init_contains_cache Unexecuted instantiation: rebase-interactive.c:init_commit_seen
29		\
30	0	scope void clear_ ##slabname(struct slabname *s) \
31	0	{ \
32	0	unsigned int i; \
33	0	for (i = 0; i < s->slab_count; i++) \
34	0	free(s->slab[i]); \
35	0	s->slab_count = 0; \
36	0	FREE_AND_NULL(s->slab); \
37	0	} \ Unexecuted instantiation: object-name.c:clear_contains_cache Unexecuted instantiation: remote.c:clear_contains_cache Unexecuted instantiation: revision.c:clear_contains_cache Unexecuted instantiation: shallow.c:clear_contains_cache Unexecuted instantiation: submodule.c:clear_contains_cache Unexecuted instantiation: bisect.c:clear_contains_cache Unexecuted instantiation: commit-graph.c:clear_commit_pos Unexecuted instantiation: commit-reach.c:clear_contains_cache Unexecuted instantiation: commit.c:clear_contains_cache Unexecuted instantiation: commit.c:clear_merge_desc_slab Unexecuted instantiation: diff-lib.c:clear_contains_cache Unexecuted instantiation: fetch-pack.c:clear_contains_cache Unexecuted instantiation: log-tree.c:clear_contains_cache Unexecuted instantiation: merge-ort.c:clear_contains_cache Unexecuted instantiation: sequencer.c:clear_contains_cache
38		\
39	0	scope void deep_clear_ ##slabname(struct slabname s, void (free_fn)(elemtype *)) \
40	0	{ \
41	0	unsigned int i; \
42	0	for (i = 0; i < s->slab_count; i++) { \
43	0	unsigned int j; \
44	0	if (!s->slab[i]) \
45	0	continue; \
46	0	for (j = 0; j < s->slab_size; j++) \
47	0	free_fn(&s->slab[i][j * s->stride]); \
48	0	} \
49	0	clear_ ##slabname(s); \
50	0	} \ Unexecuted instantiation: object-name.c:deep_clear_contains_cache Unexecuted instantiation: remote.c:deep_clear_contains_cache Unexecuted instantiation: deep_clear_revision_sources Unexecuted instantiation: revision.c:deep_clear_saved_parents Unexecuted instantiation: revision.c:deep_clear_contains_cache Unexecuted instantiation: revision.c:deep_clear_indegree_slab Unexecuted instantiation: revision.c:deep_clear_author_date_slab Unexecuted instantiation: shallow.c:deep_clear_commit_depth Unexecuted instantiation: shallow.c:deep_clear_contains_cache Unexecuted instantiation: shallow.c:deep_clear_ref_bitmap Unexecuted instantiation: submodule.c:deep_clear_contains_cache Unexecuted instantiation: bisect.c:deep_clear_contains_cache Unexecuted instantiation: bisect.c:deep_clear_commit_weight Unexecuted instantiation: bloom.c:deep_clear_bloom_filter_slab Unexecuted instantiation: commit-graph.c:deep_clear_topo_level_slab Unexecuted instantiation: commit-graph.c:deep_clear_commit_pos Unexecuted instantiation: commit-graph.c:deep_clear_commit_graph_data_slab Unexecuted instantiation: commit-reach.c:deep_clear_contains_cache Unexecuted instantiation: commit-reach.c:deep_clear_bit_arrays Unexecuted instantiation: commit-reach.c:deep_clear_best_branch_base Unexecuted instantiation: commit.c:deep_clear_contains_cache Unexecuted instantiation: commit.c:deep_clear_buffer_slab Unexecuted instantiation: commit.c:deep_clear_indegree_slab Unexecuted instantiation: commit.c:deep_clear_author_date_slab Unexecuted instantiation: commit.c:deep_clear_merge_desc_slab Unexecuted instantiation: diff-lib.c:deep_clear_contains_cache Unexecuted instantiation: fetch-pack.c:deep_clear_contains_cache Unexecuted instantiation: log-tree.c:deep_clear_contains_cache Unexecuted instantiation: merge-ort.c:deep_clear_contains_cache Unexecuted instantiation: sequencer.c:deep_clear_contains_cache Unexecuted instantiation: sequencer.c:deep_clear_commit_todo_item Unexecuted instantiation: rebase-interactive.c:deep_clear_commit_seen
51		\
52		scope elemtype slabname## _at_peek(struct slabname s, \
53		const struct commit *c, \
54	0	int add_if_missing) \
55	0	{ \
56	0	unsigned int nth_slab, nth_slot; \
57	0	\
58	0	nth_slab = c->index / s->slab_size; \
59	0	nth_slot = c->index % s->slab_size; \
60	0	\
61	0	if (s->slab_count <= nth_slab) { \
62	0	unsigned int i; \
63	0	if (!add_if_missing) \
64	0	return NULL; \
65	0	REALLOC_ARRAY(s->slab, nth_slab + 1); \
66	0	for (i = s->slab_count; i <= nth_slab; i++) \
67	0	s->slab[i] = NULL; \
68	0	s->slab_count = nth_slab + 1; \
69	0	} \
70	0	if (!s->slab[nth_slab]) { \
71	0	if (!add_if_missing) \
72	0	return NULL; \
73	0	s->slab[nth_slab] = xcalloc(s->slab_size, \
74	0	sizeof(*s->slab) s->stride); \
75	0	} \
76	0	return &s->slab[nth_slab][nth_slot * s->stride]; \
77	0	} \ Unexecuted instantiation: object-name.c:contains_cache_at_peek Unexecuted instantiation: remote.c:contains_cache_at_peek Unexecuted instantiation: revision.c:contains_cache_at_peek Unexecuted instantiation: revision.c:author_date_slab_at_peek Unexecuted instantiation: shallow.c:contains_cache_at_peek Unexecuted instantiation: submodule.c:contains_cache_at_peek Unexecuted instantiation: bisect.c:contains_cache_at_peek Unexecuted instantiation: commit.c:contains_cache_at_peek Unexecuted instantiation: diff-lib.c:contains_cache_at_peek Unexecuted instantiation: fetch-pack.c:contains_cache_at_peek Unexecuted instantiation: log-tree.c:contains_cache_at_peek Unexecuted instantiation: merge-ort.c:contains_cache_at_peek Unexecuted instantiation: sequencer.c:contains_cache_at_peek
78		\
79		scope elemtype slabname## _at(struct slabname s, \
80	0	const struct commit *c) \
81	0	{ \
82	0	return slabname##_at_peek(s, c, 1); \
83	0	} \ Unexecuted instantiation: object-name.c:contains_cache_at Unexecuted instantiation: remote.c:contains_cache_at Unexecuted instantiation: revision_sources_at Unexecuted instantiation: revision.c:indegree_slab_at Unexecuted instantiation: revision.c:saved_parents_at Unexecuted instantiation: revision.c:contains_cache_at Unexecuted instantiation: revision.c:author_date_slab_at Unexecuted instantiation: shallow.c:commit_depth_at Unexecuted instantiation: shallow.c:ref_bitmap_at Unexecuted instantiation: shallow.c:contains_cache_at Unexecuted instantiation: submodule.c:contains_cache_at Unexecuted instantiation: bisect.c:commit_weight_at Unexecuted instantiation: bisect.c:contains_cache_at Unexecuted instantiation: bloom.c:bloom_filter_slab_at Unexecuted instantiation: commit-graph.c:commit_graph_data_slab_at Unexecuted instantiation: commit-graph.c:topo_level_slab_at Unexecuted instantiation: commit-graph.c:commit_pos_at Unexecuted instantiation: commit-reach.c:contains_cache_at Unexecuted instantiation: commit-reach.c:bit_arrays_at Unexecuted instantiation: commit-reach.c:best_branch_base_at Unexecuted instantiation: commit.c:buffer_slab_at Unexecuted instantiation: commit.c:author_date_slab_at Unexecuted instantiation: commit.c:indegree_slab_at Unexecuted instantiation: commit.c:merge_desc_slab_at Unexecuted instantiation: commit.c:contains_cache_at Unexecuted instantiation: diff-lib.c:contains_cache_at Unexecuted instantiation: fetch-pack.c:contains_cache_at Unexecuted instantiation: log-tree.c:contains_cache_at Unexecuted instantiation: merge-ort.c:contains_cache_at Unexecuted instantiation: sequencer.c:commit_todo_item_at Unexecuted instantiation: sequencer.c:contains_cache_at Unexecuted instantiation: rebase-interactive.c:commit_seen_at
84		\
85		scope elemtype slabname## _peek(struct slabname s, \
86	0	const struct commit *c) \
87	0	{ \
88	0	return slabname##_at_peek(s, c, 0); \
89	0	} \ Unexecuted instantiation: object-name.c:contains_cache_peek Unexecuted instantiation: remote.c:contains_cache_peek Unexecuted instantiation: revision_sources_peek Unexecuted instantiation: revision.c:contains_cache_peek Unexecuted instantiation: revision.c:indegree_slab_peek Unexecuted instantiation: revision.c:author_date_slab_peek Unexecuted instantiation: revision.c:saved_parents_peek Unexecuted instantiation: shallow.c:contains_cache_peek Unexecuted instantiation: shallow.c:commit_depth_peek Unexecuted instantiation: shallow.c:ref_bitmap_peek Unexecuted instantiation: submodule.c:contains_cache_peek Unexecuted instantiation: bisect.c:contains_cache_peek Unexecuted instantiation: bisect.c:commit_weight_peek Unexecuted instantiation: bloom.c:bloom_filter_slab_peek Unexecuted instantiation: commit-graph.c:commit_graph_data_slab_peek Unexecuted instantiation: commit-graph.c:topo_level_slab_peek Unexecuted instantiation: commit-graph.c:commit_pos_peek Unexecuted instantiation: commit-reach.c:contains_cache_peek Unexecuted instantiation: commit-reach.c:bit_arrays_peek Unexecuted instantiation: commit-reach.c:best_branch_base_peek Unexecuted instantiation: commit.c:buffer_slab_peek Unexecuted instantiation: commit.c:contains_cache_peek Unexecuted instantiation: commit.c:indegree_slab_peek Unexecuted instantiation: commit.c:author_date_slab_peek Unexecuted instantiation: commit.c:merge_desc_slab_peek Unexecuted instantiation: diff-lib.c:contains_cache_peek Unexecuted instantiation: fetch-pack.c:contains_cache_peek Unexecuted instantiation: log-tree.c:contains_cache_peek Unexecuted instantiation: merge-ort.c:contains_cache_peek Unexecuted instantiation: sequencer.c:contains_cache_peek Unexecuted instantiation: sequencer.c:commit_todo_item_peek Unexecuted instantiation: rebase-interactive.c:commit_seen_peek
90		\
91		struct slabname
92
93		/*
94		* Note that this redundant forward declaration is required
95		* to allow a terminating semicolon, which makes instantiations look
96		* like function declarations. I.e., the expansion of
97		*
98		* implement_commit_slab(indegree, int, static);
99		*
100		* ends in 'struct indegree;'. This would otherwise
101		* be a syntax error according (at least) to ISO C. It's hard to
102		* catch because GCC silently parses it by default.
103		*/
104
105		#endif /* COMMIT_SLAB_IMPL_H */

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Created: 2026-01-09 07:10