зеркало из https://github.com/microsoft/git.git
31 строка
731 B
C
31 строка
731 B
C
|
#ifndef COMMIT_SLAB_HDR_H
|
||
|
|
#define COMMIT_SLAB_HDR_H
|
||
|
|
|
||
|
|
/* allocate ~512kB at once, allowing for malloc overhead */
|
||
|
|
#ifndef COMMIT_SLAB_SIZE
|
||
|
|
#define COMMIT_SLAB_SIZE (512*1024-32)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define declare_commit_slab(slabname, elemtype) \
|
||
|
|
\
|
||
|
|
struct slabname { \
|
||
|
|
unsigned slab_size; \
|
||
|
|
unsigned stride; \
|
||
|
|
unsigned slab_count; \
|
||
|
|
elemtype **slab; \
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Statically initialize a commit slab named "var". Note that this
|
||
|
|
* evaluates "stride" multiple times! Example:
|
||
|
|
*
|
||
|
|
* struct indegree indegrees = COMMIT_SLAB_INIT(1, indegrees);
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
#define COMMIT_SLAB_INIT(stride, var) { \
|
||
|
|
COMMIT_SLAB_SIZE / sizeof(**((var).slab)) / (stride), \
|
||
|
|
(stride), 0, NULL \
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* COMMIT_SLAB_HDR_H */
|