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#include "scoped.hh"
#include <cstdlib>
#if !defined(_WIN32) && !defined(_WIN64)
#include <sys/mman.h>
#endif
namespace util {
// TODO: if we're really under memory pressure, don't allocate memory to
// display the error.
MallocException::MallocException(std::size_t requested) throw() {
*this << "for " << requested << " bytes ";
}
MallocException::~MallocException() throw() {}
namespace {
void *InspectAddr(void *addr, std::size_t requested, const char *func_name) {
UTIL_THROW_IF_ARG(!addr && requested, MallocException, (requested), "in " << func_name);
return addr;
}
} // namespace
void *MallocOrThrow(std::size_t requested) {
return InspectAddr(std::malloc(requested), requested, "malloc");
}
void *CallocOrThrow(std::size_t requested) {
return InspectAddr(std::calloc(requested, 1), requested, "calloc");
}
void scoped_malloc::call_realloc(std::size_t requested) {
p_ = InspectAddr(std::realloc(p_, requested), requested, "realloc");
}
void AdviseHugePages(const void *addr, std::size_t size) {
#if MADV_HUGEPAGE
madvise((void*)addr, size, MADV_HUGEPAGE);
#endif
}
} // namespace util
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