1 files changed, 81 insertions, 0 deletions
diff --git a/js/src/vm/MutexIDs.h b/js/src/vm/MutexIDs.h
new file mode 100644
index 0000000000..0e84a48369
--- /dev/null
+++ b/js/src/vm/MutexIDs.h
@@ -0,0 +1,81 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef vm_MutexIDs_h
+#define vm_MutexIDs_h
+
+#include "threading/Mutex.h"
+
+// Central definition point for mutex ordering.
+//
+// Mutexes can only be acquired in increasing order. This prevents the
+// possibility of deadlock. Mutexes with the same order cannot be held
+// at the same time.
+
+#define FOR_EACH_MUTEX(_)             \
+  _(TestMutex, 100)                   \
+  _(ShellContextWatchdog, 100)        \
+  _(ShellWorkerThreads, 100)          \
+  _(ShellObjectMailbox, 100)          \
+  _(WellKnownParserAtomsInit, 100)    \
+                                      \
+  _(WasmInitBuiltinThunks, 250)       \
+  _(WasmLazyStubsTier1, 250)          \
+  _(WasmLazyStubsTier2, 251)          \
+                                      \
+  _(StoreBuffer, 275)                 \
+                                      \
+  _(GCLock, 300)                      \
+                                      \
+  _(GlobalHelperThreadState, 400)     \
+                                      \
+  _(StringsCache, 500)                \
+  _(FutexThread, 500)                 \
+  _(GeckoProfilerStrings, 500)        \
+  _(ProtectedRegionTree, 500)         \
+  _(ShellOffThreadState, 500)         \
+  _(ShellStreamCacheEntryState, 500)  \
+  _(SimulatorCacheLock, 500)          \
+  _(Arm64SimulatorLock, 500)          \
+  _(IonSpewer, 500)                   \
+  _(PerfSpewer, 500)                  \
+  _(CacheIRSpewer, 500)               \
+  _(DateTimeInfoMutex, 500)           \
+  _(ProcessExecutableRegion, 500)     \
+  _(BufferStreamState, 500)           \
+  _(SharedArrayGrow, 500)             \
+  _(SharedImmutableScriptData, 500)   \
+  _(WasmTypeIdSet, 500)               \
+  _(WasmCodeProfilingLabels, 500)     \
+  _(WasmCodeBytesEnd, 500)            \
+  _(WasmStreamEnd, 500)               \
+  _(WasmStreamStatus, 500)            \
+  _(WasmRuntimeInstances, 500)        \
+  _(WasmSignalInstallState, 500)      \
+  _(WasmHugeMemoryEnabled, 500)       \
+  _(MemoryTracker, 500)               \
+  _(StencilCache, 500)                \
+  _(SourceCompression, 500)           \
+  _(GCDelayedMarkingLock, 500)        \
+                                      \
+  _(SharedImmutableStringsCache, 600) \
+  _(IrregexpLazyStatic, 600)          \
+  _(ThreadId, 600)                    \
+  _(WasmCodeSegmentMap, 600)          \
+  _(VTuneLock, 600)                   \
+  _(ShellTelemetry, 600)
+
+namespace js {
+namespace mutexid {
+
+#define DEFINE_MUTEX_ID(name, order) static const MutexId name{#name, order};
+FOR_EACH_MUTEX(DEFINE_MUTEX_ID)
+#undef DEFINE_MUTEX_ID
+
+}  // namespace mutexid
+}  // namespace js
+
+#endif  // vm_MutexIDs_h