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authorAmeer J <52414509+ameerj@users.noreply.github.com>2021-08-24 06:01:13 +0200
committerGitHub <noreply@github.com>2021-08-24 06:01:13 +0200
commitbed0c3c92a6db45b29e787016fd21542606a031a (patch)
treed39b1dddcb578000b74c03a9e24564c9279f4411
parentMerge pull request #6912 from lioncash/plural (diff)
parentkernel: Optimize GetHostThreadID (diff)
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-rw-r--r--src/core/hle/kernel/kernel.cpp23
1 files changed, 13 insertions, 10 deletions
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index 8673384ee..8fdab44e4 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -261,20 +261,23 @@ struct KernelCore::Impl {
current_process = process;
}
- /// Creates a new host thread ID, should only be called by GetHostThreadId
- u32 AllocateHostThreadId(std::optional<std::size_t> core_id) {
- if (core_id) {
- // The first for slots are reserved for CPU core threads
- ASSERT(*core_id < Core::Hardware::NUM_CPU_CORES);
- return static_cast<u32>(*core_id);
- } else {
- return next_host_thread_id++;
+ static inline thread_local u32 host_thread_id = UINT32_MAX;
+
+ /// Gets the host thread ID for the caller, allocating a new one if this is the first time
+ u32 GetHostThreadId(std::size_t core_id) {
+ if (host_thread_id == UINT32_MAX) {
+ // The first four slots are reserved for CPU core threads
+ ASSERT(core_id < Core::Hardware::NUM_CPU_CORES);
+ host_thread_id = static_cast<u32>(core_id);
}
+ return host_thread_id;
}
/// Gets the host thread ID for the caller, allocating a new one if this is the first time
- u32 GetHostThreadId(std::optional<std::size_t> core_id = std::nullopt) {
- const thread_local auto host_thread_id{AllocateHostThreadId(core_id)};
+ u32 GetHostThreadId() {
+ if (host_thread_id == UINT32_MAX) {
+ host_thread_id = next_host_thread_id++;
+ }
return host_thread_id;
}