mono/utils/mono-mmap.h

   1 #ifndef __MONO_UTILS_MMAP_H__
   2 #define __MONO_UTILS_MMAP_H__
   3
   4 #include <glib.h>
   5 #include <mono/utils/mono-publib.h>
   6
   7 enum {
   8         /* protection */
   9         MONO_MMAP_NONE = 0,
  10         MONO_MMAP_READ    = 1 << 0,
  11         MONO_MMAP_WRITE   = 1 << 1,
  12         MONO_MMAP_EXEC    = 1 << 2,
  13         /* make the OS discard the dirty data and fill with 0 */
  14         MONO_MMAP_DISCARD = 1 << 3,
  15         /* other flags (add commit, sync) */
  16         MONO_MMAP_PRIVATE = 1 << 4,
  17         MONO_MMAP_SHARED  = 1 << 5,
  18         MONO_MMAP_ANON    = 1 << 6,
  19         MONO_MMAP_FIXED   = 1 << 7,
  20         MONO_MMAP_32BIT   = 1 << 8
  21 };
  22
  23 /*
  24  * A simple interface to fopen/fstat/fileno
  25  */
  26 typedef struct _MonoFileMap MonoFileMap;
  27
  28 MONO_API MonoFileMap *mono_file_map_open  (const char* name);
  29 MONO_API guint64      mono_file_map_size  (MonoFileMap *fmap);
  30 MONO_API int          mono_file_map_fd    (MonoFileMap *fmap);
  31 MONO_API int          mono_file_map_close (MonoFileMap *fmap);
  32
  33 MONO_API int   mono_pagesize   (void);
  34 MONO_API void* mono_valloc     (void *addr, size_t length, int flags);
  35 MONO_API void* mono_valloc_aligned (size_t length, size_t alignment, int flags);
  36 MONO_API int   mono_vfree      (void *addr, size_t length);
  37 MONO_API void* mono_file_map   (size_t length, int flags, int fd, guint64 offset, void **ret_handle);
  38 MONO_API int   mono_file_unmap (void *addr, void *handle);
  39 #ifndef HOST_WIN32
  40 MONO_API void* mono_file_map_fileio   (size_t length, int flags, int fd, guint64 offset, void **ret_handle);
  41 MONO_API int   mono_file_unmap_fileio (void *addr, void *handle);
  42 #endif
  43 MONO_API int   mono_mprotect   (void *addr, size_t length, int flags);
  44
  45 MONO_API void* mono_shared_area         (void);
  46 MONO_API void  mono_shared_area_remove  (void);
  47 MONO_API void* mono_shared_area_for_pid (void *pid);
  48 MONO_API void  mono_shared_area_unload  (void *area);
  49 MONO_API int   mono_shared_area_instances (void **array, int count);
  50
  51 /*
  52  * On systems where we have to load code into memory instead of mmaping
  53  * we allow for the allocator to be set.   This function is only
  54  * defined on those platforms.
  55  */
  56 typedef void *(*mono_file_map_alloc_fn)   (size_t length);
  57 typedef void  (*mono_file_map_release_fn) (void *addr);
  58
  59 MONO_API void mono_file_map_set_allocator (mono_file_map_alloc_fn alloc, mono_file_map_release_fn release);
  60
  61 #endif /* __MONO_UTILS_MMAP_H__ */
  62