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[Zion/Glacier] Add a HashMap to store process capabilities.

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This commit is contained in:
Drew Galbraith 2023-11-16 22:12:00 -08:00
parent 6756d25e5c
commit 6e227e1cf6
5 changed files with 271 additions and 31 deletions
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33
zion/capability/capability_table.cpp
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@ -8,37 +8,26 @@ uint64_t CapabilityTable::AddExistingCapability(
const glcr::RefPtr<Capability>& cap) {
MutexHolder h(lock_);
uint64_t id = next_cap_id_++;
capabilities_.PushBack({.id = id, .cap = cap});
if (capabilities_.Insert(id, cap) != glcr::OK) {
panic("Reusing capability id.");
}
return id;
}
glcr::RefPtr<Capability> CapabilityTable::GetCapability(uint64_t id) {
MutexHolder h(lock_);
auto iter = capabilities_.begin();
while (iter != capabilities_.end()) {
if (iter->cap && iter->id == id) {
return iter->cap;
}
++iter;
if (!capabilities_.Contains(id)) {
panic("Bad cap access {}", id);
}
dbgln("Bad cap access {}", id);
dbgln("Num caps: {}", capabilities_.size());
return {};
return capabilities_.at(id);
}
glcr::RefPtr<Capability> CapabilityTable::ReleaseCapability(uint64_t id) {
MutexHolder h(lock_);
auto iter = capabilities_.begin();
while (iter != capabilities_.end()) {
if (iter->cap && iter->id == id) {
// FIXME: Do an actual release here.
auto cap = iter->cap;
iter->cap = {nullptr};
return cap;
}
++iter;
if (!capabilities_.Contains(id)) {
panic("Bad cap release {}", id);
}
dbgln("Bad cap release: {}", id);
dbgln("Num caps: {}", capabilities_.size());
return {};
auto cap = capabilities_.at(id);
(void)capabilities_.Delete(id);
return cap;
}