diff --git a/legacy/eina/src/lib/eina_file.c b/legacy/eina/src/lib/eina_file.c index fe04c1cd6d..1cb0516b09 100644 --- a/legacy/eina/src/lib/eina_file.c +++ b/legacy/eina/src/lib/eina_file.c @@ -92,6 +92,9 @@ void *alloca (size_t); #endif #define DBG(...) EINA_LOG_DOM_DBG(_eina_file_log_dom, __VA_ARGS__) +#define EINA_SMALL_PAGE 4096 +# define EINA_HUGE_PAGE 16 * 1024 * 1024 + typedef struct _Eina_File_Iterator Eina_File_Iterator; typedef struct _Eina_File_Map Eina_File_Map; @@ -113,7 +116,7 @@ struct _Eina_File Eina_Hash *rmap; void *global_map; - unsigned long length; + unsigned long long length; time_t mtime; int refcount; @@ -416,22 +419,51 @@ _eina_file_map_key_hash(const unsigned long int *key, int key_length __UNUSED__) ^ eina_hash_int64(&key[1], sizeof (unsigned long int)); } -static void +#ifndef MAP_POPULATE +static int +_eina_file_map_populate(char *map, unsigned int size) +{ + int r = 0xDEADBEEF; + int i; + int s; + +#ifdef MAP_HUGETLB + s = size > EINA_HUGE_PAGE ? EINA_HUGE_PAGE : EINA_SMALL_PAGE; +#else + s = EINA_SMALL_PAGE; +#endif + + for (i = 0; i < size; i += s) + r ^= map[i]; + + r ^= map[size]; + + return r; +} +#endif + +static int _eina_file_map_rule_apply(Eina_File_Populate rule, void *addr, unsigned long int size) { - int flag; + int tmp = 42; + int flag = MADV_RANDOM; switch (rule) { case EINA_FILE_RANDOM: flag = MADV_RANDOM; break; case EINA_FILE_SEQUENTIAL: flag = MADV_SEQUENTIAL; break; - case EINA_FILE_WILLNEED: - case EINA_FILE_POPULATE: - flag = MADV_WILLNEED; - break; + case EINA_FILE_POPULATE: flag = MADV_WILLNEED; break; + case EINA_FILE_WILLNEED: flag = MADV_WILLNEED; break; } madvise(addr, size, flag); + +#ifndef MAP_POPULATE + if (rule == EINA_FILE_POPULATE) + tmp ^= _eina_file_map_populate(addr, size); +#endif + + return tmp; } Eina_Bool @@ -738,7 +770,7 @@ eina_file_open(const char *filename, Eina_Bool shared) file = eina_hash_find(_eina_file_cache, filename); if (file && (file->mtime != file_stat.st_mtime - || file->length != file_stat.st_size)) + || file->length != (unsigned long long) file_stat.st_size)) { create = EINA_TRUE; @@ -839,10 +871,13 @@ eina_file_map_all(Eina_File *file, Eina_File_Populate rule) int flags = MAP_SHARED; // bsd people will lack this feature -#ifdef MAP_POPULATE +#ifdef MAP_POPULATE if (rule == EINA_FILE_POPULATE) flags |= MAP_POPULATE; #endif - +#ifdef MAP_HUGETLB + if (file->length > EINA_HUGE_PAGE) flags |= MAP_HUGETLB; +#endif + if (file->global_map == MAP_FAILED) file->global_map = mmap(NULL, file->length, PROT_READ, flags, file->fd, 0); @@ -879,9 +914,13 @@ eina_file_map_new(Eina_File *file, Eina_File_Populate rule, int flags = MAP_SHARED; // bsd people will lack this feature -#ifdef MAP_POPULATE +#ifdef MAP_POPULATE if (rule == EINA_FILE_POPULATE) flags |= MAP_POPULATE; #endif +#ifdef MAP_HUGETLB + if (length > EINA_HUGE_PAGE) flags |= MAP_HUGETLB; +#endif + map = malloc(sizeof (Eina_File_Map)); if (!map) return NULL;