Crate gear_lazy_pages

Lazy-pages support. In runtime data for program Wasm memory pages can be loaded in lazy manner. All pages, which is supposed to be lazy, must be mprotected before program execution. During execution data from storage is loaded for all pages, which has been accessed and which has data in storage. See also process::process_lazy_pages, signal, host_func for more information.

Note: currently we restrict twice write signal from same page during one execution. It’s not necessary behavior, but more simple and safe.

Structs

• ExceptionInfo

Enums

• Error
• InitError
• LazyPagesError
• LazyPagesVersion
  Lazy-pages version.

Traits

• LazyPagesStorage
• UserSignalHandler

Functions

• change_wasm_mem_addr_and_size
  Set current wasm memory begin addr in global context
• init
• init_with_handler
  Initialize lazy-pages for current thread.
• initialize_for_program
• pre_process_memory_accesses
• set_lazy_pages_protection
  Protect lazy pages, after they had been unprotected.
• status
• unset_lazy_pages_protection
  Unset lazy pages read/write protections.
• write_accessed_pages
  Returns vec of lazy-pages which has been accessed