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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include <config.h> | 5 #include <config.h> |
6 | 6 |
7 // When defined, different heap allocators can be used via an environment | 7 // When defined, different heap allocators can be used via an environment |
8 // variable set before running the program. This may reduce the amount | 8 // variable set before running the program. This may reduce the amount |
9 // of inlining that we get with malloc/free/etc. Disabling makes it | 9 // of inlining that we get with malloc/free/etc. Disabling makes it |
10 // so that only tcmalloc can be used. | 10 // so that only tcmalloc can be used. |
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81 throw std::bad_alloc(); | 81 throw std::bad_alloc(); |
82 } | 82 } |
83 // Otherwise, try the new_handler. If it returns, retry the | 83 // Otherwise, try the new_handler. If it returns, retry the |
84 // allocation. If it throws std::bad_alloc, fail the allocation. | 84 // allocation. If it throws std::bad_alloc, fail the allocation. |
85 // if it throws something else, don't interfere. | 85 // if it throws something else, don't interfere. |
86 try { | 86 try { |
87 (*nh)(); | 87 (*nh)(); |
88 } catch (const std::bad_alloc&) { | 88 } catch (const std::bad_alloc&) { |
89 if (!nothrow) | 89 if (!nothrow) |
90 throw; | 90 throw; |
91 return p; | 91 return true; |
92 } | 92 } |
93 #endif // (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPT
IONS) && !_HAS_EXCEPTIONS) | 93 #endif // (defined(__GNUC__) && !defined(__EXCEPTIONS)) || (defined(_HAS_EXCEPT
IONS) && !_HAS_EXCEPTIONS) |
94 } | 94 } |
95 | 95 |
96 void* malloc(size_t size) __THROW { | 96 void* malloc(size_t size) __THROW { |
97 void* ptr; | 97 void* ptr; |
98 for (;;) { | 98 for (;;) { |
99 #ifdef ENABLE_DYNAMIC_ALLOCATOR_SWITCHING | 99 #ifdef ENABLE_DYNAMIC_ALLOCATOR_SWITCHING |
100 switch (allocator) { | 100 switch (allocator) { |
101 case JEMALLOC: | 101 case JEMALLOC: |
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257 // to test whether the CRT has been initialized. Once we've ripped out | 257 // to test whether the CRT has been initialized. Once we've ripped out |
258 // the allocators from libcmt, we need to provide this definition so that | 258 // the allocators from libcmt, we need to provide this definition so that |
259 // the rest of the CRT is still usable. | 259 // the rest of the CRT is still usable. |
260 extern "C" void* _crtheap = reinterpret_cast<void*>(1); | 260 extern "C" void* _crtheap = reinterpret_cast<void*>(1); |
261 | 261 |
262 #endif // WIN32 | 262 #endif // WIN32 |
263 | 263 |
264 #include "generic_allocators.cc" | 264 #include "generic_allocators.cc" |
265 | 265 |
266 } // extern C | 266 } // extern C |
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