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Have set_try_to_free_routine return the previous routine

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This effectively requires from the callers of set_try_to_free_routine to
treat the try-to-free-routines as a stack.

We will need this for the next patch where the only current caller cannot
depend on that the previously set routine was the default routine.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Sixt
2010-05-08 17:13:49 +02:00
committed by Junio C Hamano
parent 9374919442
commit 851c34b04e
3 changed files with 10 additions and 5 deletions
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6
wrapper.c
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@ -10,9 +10,11 @@ static void try_to_free_builtin(size_t size)
static void (*try_to_free_routine)(size_t size) = try_to_free_builtin;
void set_try_to_free_routine(void (*routine)(size_t))
try_to_free_t set_try_to_free_routine(try_to_free_t routine)
{
try_to_free_routine = (routine) ? routine : try_to_free_builtin;
try_to_free_t old = try_to_free_routine;
try_to_free_routine = routine;
return old;
}
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