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introduce macros for malloc, realloc, free to hide them from mksh

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no code may henceforth use memory (de-)allocation functions directly
use these macros, porters can change them for abstraction
This commit is contained in:
tg
2011-03-05 21:43:18 +00:00
parent ad2fd952e4
commit 0b6afea352
5 changed files with 39 additions and 16 deletions
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10
lalloc.c
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@ -20,13 +20,13 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/lalloc.c,v 1.14 2011/01/09 21:57:27 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/lalloc.c,v 1.15 2011/03/05 21:43:16 tg Exp $");
/* build with CPPFLAGS+= -DUSE_REALLOC_MALLOC=0 on ancient systems */
#if defined(USE_REALLOC_MALLOC) && (USE_REALLOC_MALLOC == 0)
#define remalloc(p,n) ((p) == NULL ? malloc(n) : realloc((p), (n)))
#define remalloc(p,n) ((p) == NULL ? malloc_os(n) : realloc_os((p), (n)))
#else
#define remalloc(p,n) realloc((p), (n))
#define remalloc(p,n) realloc_os((p), (n))
#endif
#define ALLOC_ISUNALIGNED(p) (((ptrdiff_t)(p)) % ALLOC_SIZE)
@ -113,7 +113,7 @@ afree(void *ptr, Area *ap)
/* unhook */
pp->next = lp->next;
/* now free ALLOC_ITEM */
free(lp);
free_osmalloc(lp);
}
}
@ -127,6 +127,6 @@ afreeall(Area *ap)
/* make next ALLOC_ITEM head of list */
ap->next = lp->next;
/* free old head */
free(lp);
free_osmalloc(lp);
}
}