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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /memory/build/mozjemalloc.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'memory/build/mozjemalloc.h')
-rw-r--r-- | memory/build/mozjemalloc.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/memory/build/mozjemalloc.h b/memory/build/mozjemalloc.h new file mode 100644 index 0000000000..a74c3b2ec6 --- /dev/null +++ b/memory/build/mozjemalloc.h @@ -0,0 +1,79 @@ +/* -*- 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 mozjemalloc_h +#define mozjemalloc_h + +#include "mozjemalloc_types.h" +#include "mozilla/MacroArgs.h" + +// Macro helpers + +#define MACRO_CALL(a, b) a b +// Can't use macros recursively, so we need another one doing the same as above. +#define MACRO_CALL2(a, b) a b + +#define ARGS_HELPER(name, ...) \ + MACRO_CALL2(MOZ_PASTE_PREFIX_AND_ARG_COUNT(name, ##__VA_ARGS__), \ + (__VA_ARGS__)) +#define TYPED_ARGS0() +#define TYPED_ARGS1(t1) t1 arg1 +#define TYPED_ARGS2(t1, t2) TYPED_ARGS1(t1), t2 arg2 +#define TYPED_ARGS3(t1, t2, t3) TYPED_ARGS2(t1, t2), t3 arg3 + +#define ARGS0() +#define ARGS1(t1) arg1 +#define ARGS2(t1, t2) ARGS1(t1), arg2 +#define ARGS3(t1, t2, t3) ARGS2(t1, t2), arg3 + +#ifdef MOZ_MEMORY + +// Generic interface exposing the whole public allocator API +// This facilitates the implementation of things like replace-malloc. +// Note: compilers are expected to be able to optimize out `this`. +template <typename T> +struct Allocator : public T { +# define MALLOC_DECL(name, return_type, ...) \ + static return_type name(__VA_ARGS__); +# include "malloc_decls.h" +}; + +// The MozJemalloc allocator +struct MozJemallocBase {}; +typedef Allocator<MozJemallocBase> MozJemalloc; + +# ifdef MOZ_REPLACE_MALLOC +// The replace-malloc allocator +struct ReplaceMallocBase {}; +typedef Allocator<ReplaceMallocBase> ReplaceMalloc; + +typedef ReplaceMalloc DefaultMalloc; +# else +typedef MozJemalloc DefaultMalloc; +# endif + +#endif // MOZ_MEMORY + +// Dummy implementation of the moz_arena_* API, falling back to a given +// implementation of the base allocator. +template <typename T> +struct DummyArenaAllocator { + static arena_id_t moz_create_arena_with_params(arena_params_t*) { return 0; } + + static void moz_dispose_arena(arena_id_t) {} + + static void moz_set_max_dirty_page_modifier(int32_t) {} + +#define MALLOC_DECL(name, return_type, ...) \ + static return_type moz_arena_##name( \ + arena_id_t, ARGS_HELPER(TYPED_ARGS, ##__VA_ARGS__)) { \ + return T::name(ARGS_HELPER(ARGS, ##__VA_ARGS__)); \ + } +#define MALLOC_FUNCS MALLOC_FUNCS_MALLOC_BASE +#include "malloc_decls.h" +}; + +#endif |