diff options
Diffstat (limited to 'third_party/tcmalloc/chromium/src/page_heap.h')
| -rw-r--r-- | third_party/tcmalloc/chromium/src/page_heap.h | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/third_party/tcmalloc/chromium/src/page_heap.h b/third_party/tcmalloc/chromium/src/page_heap.h index 52acedb..ab7a541 100644 --- a/third_party/tcmalloc/chromium/src/page_heap.h +++ b/third_party/tcmalloc/chromium/src/page_heap.h @@ -34,7 +34,12 @@ #define TCMALLOC_PAGE_HEAP_H_ #include <config.h> +#include <stddef.h> // for size_t +#ifdef HAVE_STDINT_H +#include <stdint.h> // for uint64_t, int64_t, uint16_t +#endif #include <google/malloc_extension.h> +#include "base/basictypes.h" #include "common.h" #include "packed-cache-inl.h" #include "pagemap.h" @@ -50,6 +55,8 @@ // This #ifdef should almost never be set. Set NO_TCMALLOC_SAMPLES if // you're porting to a system where you really can't get a stacktrace. +// Because we control the definition of GetStackTrace, all clients of +// GetStackTrace should #include us rather than stacktrace.h. #ifdef NO_TCMALLOC_SAMPLES // We use #define so code compiles even if you #include stacktrace.h somehow. # define GetStackTrace(stack, depth, skip) (0) @@ -57,6 +64,11 @@ # include <google/stacktrace.h> #endif +class TCMalloc_Printer; +namespace base { +struct MallocRange; +} + namespace tcmalloc { // ------------------------------------------------------------------------- @@ -150,6 +162,10 @@ class PERFTOOLS_DLL_DECL PageHeap { }; inline Stats stats() const { return stats_; } + void GetClassSizes(int64 class_sizes_normal[kMaxPages], + int64 class_sizes_returned[kMaxPages], + int64* normal_pages_in_spans, + int64* returned_pages_in_spans); bool Check(); // Like Check() but does some more comprehensive checking. @@ -186,11 +202,8 @@ class PERFTOOLS_DLL_DECL PageHeap { // should keep this value big because various incarnations of Linux // have small limits on the number of mmap() regions per // address-space. - static const int kMinSystemAlloc = 1 << (20 - kPageShift); - - // For all span-lengths < kMaxPages we keep an exact-size list. - // REQUIRED: kMaxPages >= kMinSystemAlloc; - static const size_t kMaxPages = kMinSystemAlloc; + // REQUIRED: kMinSystemAlloc <= kMaxPages; + static const int kMinSystemAlloc = kMaxPages; // Never delay scavenging for more than the following number of // deallocated pages. With 4K pages, this comes to 4GB of @@ -204,8 +217,8 @@ class PERFTOOLS_DLL_DECL PageHeap { static const int kDefaultReleaseDelay = 1 << 12; // Pick the appropriate map and cache types based on pointer size - typedef MapSelector<8*sizeof(uintptr_t)>::Type PageMap; - typedef MapSelector<8*sizeof(uintptr_t)>::CacheType PageMapCache; + typedef MapSelector<kAddressBits>::Type PageMap; + typedef MapSelector<kAddressBits>::CacheType PageMapCache; PageMap pagemap_; mutable PageMapCache pagemap_cache_; @@ -225,6 +238,8 @@ class PERFTOOLS_DLL_DECL PageHeap { // Statistics on system, free, and unmapped bytes Stats stats_; + Span* SearchFreeAndLargeLists(Length n); + bool GrowHeap(Length n); // REQUIRES: span->length >= n |