inline void* MemoryManager::smartMalloc(size_t nbytes) {
auto const nbytes_padded = nbytes + sizeof(SmallNode);
if (LIKELY(nbytes_padded) <= kMaxSmartSize) {
auto const ptr = static_cast<SmallNode*>(smartMallocSize(nbytes_padded));
ptr->padbytes = nbytes_padded;
ptr->kind = HeaderKind::SmallMalloc;
return ptr + 1;
}
return smartMallocBig(nbytes);
}
inline void* MemoryManager::smartMalloc(size_t nbytes) {
nbytes += sizeof(SmallNode);
if (UNLIKELY(nbytes > kMaxSmartSize)) {
return smartMallocBig(nbytes);
}
auto const ptr = static_cast<SmallNode*>(smartMallocSize(nbytes));
ptr->padbytes = nbytes;
return ptr + 1;
}
inline void* MemoryManager::smartMalloc(size_t nbytes) {
nbytes += sizeof(SmallNode);
if (UNLIKELY(nbytes > kMaxSmartSize)) {
return smartMallocBig(nbytes);
}
nbytes = smartSizeClass(nbytes);
m_stats.usage += nbytes;
auto const idx = (nbytes - 1) >> kLgSizeQuantum;
assert(idx < kNumSizes && idx >= 0);
void* vp = m_sizeTrackedFree[idx].maybePop();
if (UNLIKELY(vp == nullptr)) {
return smartMallocSlab(nbytes);
}
FTRACE(1, "smartMalloc: {} -> {}\n", nbytes, vp);
return vp;
}
