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Side by Side Diff: third_party/protobuf/src/google/protobuf/arena.cc

Issue 2756543002: Statically link libprotobuf_lite on Linux component builds (Closed)
Patch Set: Extract all global data to globals.cc Created 3 years, 9 months ago
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1 // Protocol Buffers - Google's data interchange format 1 // Protocol Buffers - Google's data interchange format
2 // Copyright 2008 Google Inc. All rights reserved. 2 // Copyright 2008 Google Inc. All rights reserved.
3 // https://developers.google.com/protocol-buffers/ 3 // https://developers.google.com/protocol-buffers/
4 // 4 //
5 // Redistribution and use in source and binary forms, with or without 5 // Redistribution and use in source and binary forms, with or without
6 // modification, are permitted provided that the following conditions are 6 // modification, are permitted provided that the following conditions are
7 // met: 7 // met:
8 // 8 //
9 // * Redistributions of source code must retain the above copyright 9 // * Redistributions of source code must retain the above copyright
10 // notice, this list of conditions and the following disclaimer. 10 // notice, this list of conditions and the following disclaimer.
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32 32
33 33
34 #ifdef ADDRESS_SANITIZER 34 #ifdef ADDRESS_SANITIZER
35 #include <sanitizer/asan_interface.h> 35 #include <sanitizer/asan_interface.h>
36 #endif 36 #endif
37 37
38 namespace google { 38 namespace google {
39 namespace protobuf { 39 namespace protobuf {
40 40
41 41
42 google::protobuf::internal::SequenceNumber Arena::lifecycle_id_generator_;
43 #if defined(GOOGLE_PROTOBUF_NO_THREADLOCAL) 42 #if defined(GOOGLE_PROTOBUF_NO_THREADLOCAL)
44 Arena::ThreadCache& Arena::thread_cache() { 43 Arena::ThreadCache& Arena::thread_cache() {
45 static internal::ThreadLocalStorage<ThreadCache>* thread_cache_ = 44 static internal::ThreadLocalStorage<ThreadCache>* thread_cache_ =
46 new internal::ThreadLocalStorage<ThreadCache>(); 45 new internal::ThreadLocalStorage<ThreadCache>();
47 return *thread_cache_->Get(); 46 return *thread_cache_->Get();
48 } 47 }
49 #elif defined(PROTOBUF_USE_DLLS) 48 #elif defined(PROTOBUF_USE_DLLS)
50 Arena::ThreadCache& Arena::thread_cache() { 49 Arena::ThreadCache& Arena::thread_cache() {
51 static GOOGLE_THREAD_LOCAL ThreadCache thread_cache_ = { -1, NULL }; 50 static GOOGLE_THREAD_LOCAL ThreadCache thread_cache_ = { -1, NULL };
52 return thread_cache_; 51 return thread_cache_;
53 } 52 }
54 #else 53 #else
55 GOOGLE_THREAD_LOCAL Arena::ThreadCache Arena::thread_cache_ = { -1, NULL }; 54 GOOGLE_THREAD_LOCAL Arena::ThreadCache Arena::thread_cache_ = { -1, NULL };
56 #endif 55 #endif
57 56
58 void Arena::Init() { 57 void Arena::Init() {
59 lifecycle_id_ = lifecycle_id_generator_.GetNext(); 58 lifecycle_id_ = internal::cr_lifecycle_id_generator_.GetNext();
60 blocks_ = 0; 59 blocks_ = 0;
61 hint_ = 0; 60 hint_ = 0;
62 owns_first_block_ = true; 61 owns_first_block_ = true;
63 cleanup_list_ = 0; 62 cleanup_list_ = 0;
64 63
65 if (options_.initial_block != NULL && options_.initial_block_size > 0) { 64 if (options_.initial_block != NULL && options_.initial_block_size > 0) {
66 GOOGLE_CHECK_GE(options_.initial_block_size, sizeof(Block)) 65 GOOGLE_CHECK_GE(options_.initial_block_size, sizeof(Block))
67 << ": Initial block size too small for header."; 66 << ": Initial block size too small for header.";
68 67
69 // Add first unowned block to list. 68 // Add first unowned block to list.
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92 uint64 space_allocated = ResetInternal(); 91 uint64 space_allocated = ResetInternal();
93 92
94 // Call the destruction hook 93 // Call the destruction hook
95 if (options_.on_arena_destruction != NULL) { 94 if (options_.on_arena_destruction != NULL) {
96 options_.on_arena_destruction(this, hooks_cookie_, space_allocated); 95 options_.on_arena_destruction(this, hooks_cookie_, space_allocated);
97 } 96 }
98 } 97 }
99 98
100 uint64 Arena::Reset() { 99 uint64 Arena::Reset() {
101 // Invalidate any ThreadCaches pointing to any blocks we just destroyed. 100 // Invalidate any ThreadCaches pointing to any blocks we just destroyed.
102 lifecycle_id_ = lifecycle_id_generator_.GetNext(); 101 lifecycle_id_ = internal::cr_lifecycle_id_generator_.GetNext();
103 return ResetInternal(); 102 return ResetInternal();
104 } 103 }
105 104
106 uint64 Arena::ResetInternal() { 105 uint64 Arena::ResetInternal() {
107 CleanupList(); 106 CleanupList();
108 uint64 space_allocated = FreeBlocks(); 107 uint64 space_allocated = FreeBlocks();
109 108
110 // Call the reset hook 109 // Call the reset hook
111 if (options_.on_arena_reset != NULL) { 110 if (options_.on_arena_reset != NULL) {
112 options_.on_arena_reset(this, hooks_cookie_, space_allocated); 111 options_.on_arena_reset(this, hooks_cookie_, space_allocated);
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312 // entry per thread. 311 // entry per thread.
313 Block* b = reinterpret_cast<Block*>(google::protobuf::internal::Acquire_Load(& blocks_)); 312 Block* b = reinterpret_cast<Block*>(google::protobuf::internal::Acquire_Load(& blocks_));
314 while (b != NULL && b->owner != me) { 313 while (b != NULL && b->owner != me) {
315 b = b->next; 314 b = b->next;
316 } 315 }
317 return b; 316 return b;
318 } 317 }
319 318
320 } // namespace protobuf 319 } // namespace protobuf
321 } // namespace google 320 } // namespace google
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