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[kernel] Make koid generation per-type

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Previously koids were a single global counter tagged with the type in
the top bits. Now there are per-type counters that each increment
separately.
This commit is contained in:
Justin C. Miller
2020-10-18 20:48:09 -07:00
parent 8bb9e22218
commit 82b7082fc5
1 changed files with 4 additions and 2 deletions
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6
src/kernel/objects/kobject.cpp
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@@ -5,7 +5,7 @@
#include "objects/thread.h" #include "objects/thread.h"
// TODO: per-cpu this? // TODO: per-cpu this?
static j6_koid_t next_koid; static j6_koid_t next_koids [static_cast<size_t>(kobject::type::max)] = { 0 };
kobject::kobject(type t, j6_signal_t signals) : kobject::kobject(type t, j6_signal_t signals) :
m_koid(koid_generate(t)), m_koid(koid_generate(t)),
@@ -22,7 +22,9 @@ kobject::~kobject()
j6_koid_t j6_koid_t
kobject::koid_generate(type t) kobject::koid_generate(type t)
{ {
return (static_cast<uint64_t>(t) << 48) | next_koid++; kassert(t < type::max, "Object type out of bounds");
uint64_t type_int = static_cast<uint64_t>(t);
return (type_int << 48) | next_koids[type_int]++;
} }
kobject::type kobject::type