What is the reference count for memory
- Posted by ArthurCrump Aug 23, 2009
- 916 views
In the memory allocation routines there is an optional parameter 'cleanup'.
If this is set the memory is released when a reference count reaches zero.
How is the reference count increased and decreased?
Would the reference count reach zero when the allocated memory is used as a parameter to a function or procedure and the call is completed?
The following code is a Windows XP example.
include std/dll.e include std/machine.e atom lib, get_attr, Result sequence cmd cmd = command_line() -- Get a file for it to work on lib = open_dll("kernel32.dll") get_attr = define_c_func(lib, "GetFileAttributesA",{C_POINTER}, C_INT) -- The next line is the important bit. Result = c_func(get_attr,{allocate_string(cmd[2],1)}) -- Does Euphoria release this memory automatically when the call completes? -- The rest just confirms it got something include get.e printf(1,"%08x",Result) puts(1,"\nPress a key") if wait_key() then end if
