Hello,
This is not actually that big a deal. But, let's say I compile a file:
(compile-file "/tmp/test-gambit-compiler/test-a.scm")
#t
Then load the resulting object file:
(load "/tmp/test-gambit-compiler/test-a")
"/tmp/test-gambit-compiler/test-a.o1"
OK, I wanna recompile it, but not have a bunch of old versions laying around. So delete the o1 file:
(delete-file "/tmp/test-gambit-compiler/test-a.o1")
And recompile:
(compile-file "/tmp/test-gambit-compiler/test-a.scm")
#t
An error occurs if you try to load the new object file:
(load "/tmp/test-gambit-compiler/test-a")
*** ERROR IN (console)@5.1 -- Can't load a given object file more than once (load "/tmp/test-gambit-compiler/test-a") 1>
Sure, I understand that Gambit is preventing a reload of the exact same object file. But it must be doing a very simple accounting based on the name of the object file. Perhaps you can employ that newfangled high-performance file digest code that was recently shared. ;-)
Anywho, no big deal. But it's a surprise.
Ed
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Sure, I understand that Gambit is preventing a reload of the exact same object file. But it must be doing a very simple accounting based on the name of the object file. Perhaps you can employ that newfangled high-performance file digest code that was recently shared. ;-)
Anywho, no big deal. But it's a surprise.
It's not Gambit, but the operating system that imposes this limitation. As far as I understand it, this is one reason to why Gambit compiles files into .o1 then .o2 and so on; you can load a .o1 file, recompile and then load the .o2 file.
/Per
Per Eckerdal wrote:
Sure, I understand that Gambit is preventing a reload of the exact same object file. But it must be doing a very simple accounting based on the name of the object file. Perhaps you can employ that newfangled high-performance file digest code that was recently shared. ;-)
Anywho, no big deal. But it's a surprise.
It's not Gambit, but the operating system that imposes this limitation.
Hmm... OK. It was just surprising because I had an expectation based on what chicken does. I.e. it allows relading of the same *.so file. E.g.
#;1> (system "csc -dynamic /tmp/test-gambit-compiler/test-a.scm") 0 #;2> (load "/tmp/test-gambit-compiler/test-a.so") ; loading /tmp/test-gambit-compiler/test-a.so ... #;3> (load "/tmp/test-gambit-compiler/test-a.so") ; loading /tmp/test-gambit-compiler/test-a.so ...
Ed
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Eduardo Cavazos -
Per Eckerdal