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Diffstat (limited to 'absl/synchronization/mutex.cc')
-rw-r--r--absl/synchronization/mutex.cc19
1 files changed, 8 insertions, 11 deletions
diff --git a/absl/synchronization/mutex.cc b/absl/synchronization/mutex.cc
index bd54a4dc..e6525046 100644
--- a/absl/synchronization/mutex.cc
+++ b/absl/synchronization/mutex.cc
@@ -43,6 +43,7 @@
#include "absl/base/dynamic_annotations.h"
#include "absl/base/internal/atomic_hook.h"
#include "absl/base/internal/cycleclock.h"
+#include "absl/base/internal/hide_ptr.h"
#include "absl/base/internal/low_level_alloc.h"
#include "absl/base/internal/raw_logging.h"
#include "absl/base/internal/spinlock.h"
@@ -272,13 +273,6 @@ static absl::base_internal::SpinLock synch_event_mu(
// Can't be too small, as it's used for deadlock detection information.
static const uint32_t kNSynchEvent = 1031;
-// We need to hide Mutexes (or other deadlock detection's pointers)
-// from the leak detector.
-static const uintptr_t kHideMask = static_cast<uintptr_t>(0xF03A5F7BF03A5F7BLL);
-static uintptr_t MaskMu(const void *mu) {
- return reinterpret_cast<uintptr_t>(mu) ^ kHideMask;
-}
-
static struct SynchEvent { // this is a trivial hash table for the events
// struct is freed when refcount reaches 0
int refcount GUARDED_BY(synch_event_mu);
@@ -314,7 +308,8 @@ static SynchEvent *EnsureSynchEvent(std::atomic<intptr_t> *addr,
SynchEvent *e;
// first look for existing SynchEvent struct..
synch_event_mu.Lock();
- for (e = synch_event[h]; e != nullptr && e->masked_addr != MaskMu(addr);
+ for (e = synch_event[h];
+ e != nullptr && e->masked_addr != base_internal::HidePtr(addr);
e = e->next) {
}
if (e == nullptr) { // no SynchEvent struct found; make one.
@@ -325,7 +320,7 @@ static SynchEvent *EnsureSynchEvent(std::atomic<intptr_t> *addr,
e = reinterpret_cast<SynchEvent *>(
base_internal::LowLevelAlloc::Alloc(sizeof(*e) + l));
e->refcount = 2; // one for return value, one for linked list
- e->masked_addr = MaskMu(addr);
+ e->masked_addr = base_internal::HidePtr(addr);
e->invariant = nullptr;
e->arg = nullptr;
e->log = false;
@@ -367,7 +362,8 @@ static void ForgetSynchEvent(std::atomic<intptr_t> *addr, intptr_t bits,
SynchEvent *e;
synch_event_mu.Lock();
for (pe = &synch_event[h];
- (e = *pe) != nullptr && e->masked_addr != MaskMu(addr); pe = &e->next) {
+ (e = *pe) != nullptr && e->masked_addr != base_internal::HidePtr(addr);
+ pe = &e->next) {
}
bool del = false;
if (e != nullptr) {
@@ -388,7 +384,8 @@ static SynchEvent *GetSynchEvent(const void *addr) {
uint32_t h = reinterpret_cast<intptr_t>(addr) % kNSynchEvent;
SynchEvent *e;
synch_event_mu.Lock();
- for (e = synch_event[h]; e != nullptr && e->masked_addr != MaskMu(addr);
+ for (e = synch_event[h];
+ e != nullptr && e->masked_addr != base_internal::HidePtr(addr);
e = e->next) {
}
if (e != nullptr) {