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use crate::utilization::*;
#[derive(Debug)]
pub(super) struct MemoryHeap {
size: u64,
used: u64,
effective: u64,
}
impl MemoryHeap {
pub(super) fn new(size: u64) -> Self {
MemoryHeap {
size,
used: 0,
effective: 0,
}
}
pub(super) fn available(&self) -> u64 {
if self.used > self.size {
log::warn!("Heap size exceeded");
0
} else {
self.size - self.used
}
}
pub(super) fn allocated(&mut self, used: u64, effective: u64) {
self.used += used;
self.effective += effective;
debug_assert!(self.used >= self.effective);
}
pub(super) fn freed(&mut self, used: u64, effective: u64) {
self.used -= used;
self.effective -= effective;
debug_assert!(self.used >= self.effective);
}
pub(super) fn utilization(&self) -> MemoryHeapUtilization {
MemoryHeapUtilization {
utilization: MemoryUtilization {
used: self.used,
effective: self.effective,
},
size: self.size,
}
}
}
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