X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fjournal%2Fmmap-cache.h;h=a85c2b6063b4f0887501389eb026d1eaef30dfbe;hp=0a88fc584fd3d6f733f6b6175ce2130efd787e32;hb=f8eeeaf9b783ebbab30672629abf3920db286811;hpb=16e9f408fa9a9626059bdd6c89dc175e06b9e976 diff --git a/src/journal/mmap-cache.h b/src/journal/mmap-cache.h index 0a88fc584..a85c2b606 100644 --- a/src/journal/mmap-cache.h +++ b/src/journal/mmap-cache.h @@ -22,13 +22,31 @@ ***/ #include +#include +#include + +/* One context per object type, plus one of the header, plus one "additional" one */ +#define MMAP_CACHE_MAX_CONTEXTS 9 typedef struct MMapCache MMapCache; -MMapCache* mmap_cache_new(unsigned contexts_max, unsigned fds_max); +MMapCache* mmap_cache_new(void); MMapCache* mmap_cache_ref(MMapCache *m); MMapCache* mmap_cache_unref(MMapCache *m); -int mmap_cache_get(MMapCache *m, int fd, int prot, unsigned context, uint64_t offset, uint64_t size, void **ret); +int mmap_cache_get( + MMapCache *m, + int fd, + int prot, + unsigned context, + bool keep_always, + uint64_t offset, + size_t size, + struct stat *st, + void **ret); void mmap_cache_close_fd(MMapCache *m, int fd); -void mmap_cache_close_context(MMapCache *m, unsigned context); + +unsigned mmap_cache_get_hit(MMapCache *m); +unsigned mmap_cache_get_missed(MMapCache *m); + +bool mmap_cache_got_sigbus(MMapCache *m, int fd);