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#include "alternate.h"
#include "custommem.h"
#include "khash.h"
// Alternate address handling
KHASH_MAP_INIT_INT64(alternate, void*)
static kh_alternate_t *my_alternates = NULL;
int hasAlternate(void* addr) {
if(!my_alternates)
return 0;
khint_t k = kh_get(alternate, my_alternates, (uintptr_t)addr);
if(k==kh_end(my_alternates))
return 0;
return 1;
}
void* getAlternate(void* addr) {
if(!my_alternates)
return addr;
khint_t k = kh_get(alternate, my_alternates, (uintptr_t)addr);
if(k!=kh_end(my_alternates))
return kh_value(my_alternates, k);
return addr;
}
void addAlternate(void* addr, void* alt) {
if(!my_alternates) {
my_alternates = kh_init(alternate);
}
int ret;
khint_t k = kh_put(alternate, my_alternates, (uintptr_t)addr, &ret);
if(!ret) // already there
return;
kh_value(my_alternates, k) = alt;
}
void addCheckAlternate(void* addr, void* alt) {
if(!hasAlternate(addr))
addAlternate(addr, alt);
}
void cleanAlternate() {
if(my_alternates) {
kh_destroy(alternate, my_alternates);
my_alternates = NULL;
}
}
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