mirror of
https://github.com/gperftools/gperftools
synced 2025-02-27 09:30:25 +00:00
6691226953
Logic was removed from thread_cache.{h,cc} into
thread_cache_ptr.{h,cc}.
Separation will help possible future evolution, and we already changed
the logic quite a bit:
* early access (when TLS isn't initialized yet) now uses global
ThreadCache instance. We therefore have ThreadCachePtr instances
managing required locking. This eliminates unnecessary complication of
PTHREADS_CRASHES_IF_RUN_TOO_EARLY logic, and any other danger of
touching TLS too early. BTW previous implementation actually leaked
initial early-initialized ThreadCache instance(!)
* old configure-time HAVE_TLS logic is amputated. Config-time part of
it made little sense as C++ 17 guarantees availability of
thread_local, but we have manually curated deny-list of "bad" OSes,
that we tested (via compile checks!) at configure time. Now this
is all compile time. There is now compile-time kHaveGoodTLS variable
and we're using it mostly via if constexpr.
* kHaveGoodTLS case of creating thread cache is simplified and made
more straightforward (no need to have in_setspecific logic).
* !kHaveGoodTLS case if fixed and improved too. We avoid
std:🧵:get_id, as it deadlocks on mingw. We use errno address as
a portable and (usually) async-signal safe 'my thread' identifier. We
also eliminate linear searching of thread's cache and replace it with
straightforward hash table lookup.
205 lines
6.1 KiB
C
205 lines
6.1 KiB
C
/* -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */
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/* A pregenerated copy of config.h for VSProj-based builds
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*
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* Use of this source code is governed by a BSD-style license that can
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* be found in the LICENSE file.
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*/
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#if !defined(_MSC_VER) || defined __MINGW32__
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#error "This config.h should only be consumed by the VSProj build!"
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#endif
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#ifndef GPERFTOOLS_CONFIG_H_
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#define GPERFTOOLS_CONFIG_H_
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/* Enable aggressive decommit by default */
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/* #undef ENABLE_AGGRESSIVE_DECOMMIT_BY_DEFAULT */
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/* Build runtime detection for sized delete */
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/* #undef ENABLE_DYNAMIC_SIZED_DELETE */
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/* Report large allocation */
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/* #undef ENABLE_LARGE_ALLOC_REPORT */
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/* Build sized deletion operators */
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/* #undef ENABLE_SIZED_DELETE */
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/* Define to 1 if you have the <asm/ptrace.h> header file. */
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/* #undef HAVE_ASM_PTRACE_H */
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/* Define to 1 if you have the <cygwin/signal.h> header file. */
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/* #undef HAVE_CYGWIN_SIGNAL_H */
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/* Define to 1 if you have the declaration of `backtrace', and to 0 if you
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don't. */
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/* #undef HAVE_DECL_BACKTRACE */
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/* Define to 1 if you have the declaration of `cfree', and to 0 if you don't.
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*/
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#define HAVE_DECL_CFREE 0
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/* Define to 1 if you have the declaration of `memalign', and to 0 if you
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don't. */
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#define HAVE_DECL_MEMALIGN 0
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/* Define to 1 if you have the declaration of `nanosleep', and to 0 if you
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don't. */
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#define HAVE_DECL_NANOSLEEP 0
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/* Define to 1 if you have the declaration of `posix_memalign', and to 0 if
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you don't. */
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#define HAVE_DECL_POSIX_MEMALIGN 0
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/* Define to 1 if you have the declaration of `pvalloc', and to 0 if you
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don't. */
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#define HAVE_DECL_PVALLOC 0
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/* Define to 1 if you have the declaration of `sleep', and to 0 if you don't.
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*/
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#define HAVE_DECL_SLEEP 0
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/* Define to 1 if you have the declaration of `valloc', and to 0 if you don't.
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*/
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#define HAVE_DECL_VALLOC 0
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/* Define to 1 if you have the <dlfcn.h> header file. */
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/* #undef HAVE_DLFCN_H */
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/* Define to 1 if the system has the type `Elf32_Versym'. */
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/* #undef HAVE_ELF32_VERSYM */
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/* Define to 1 if you have the <execinfo.h> header file. */
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/* #undef HAVE_EXECINFO_H */
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/* Define to 1 if you have the <fcntl.h> header file. */
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#define HAVE_FCNTL_H 1
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/* Define to 1 if you have the <features.h> header file. */
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/* #undef HAVE_FEATURES_H */
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/* Define to 1 if you have the `geteuid' function. */
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/* #undef HAVE_GETEUID */
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/* Define to 1 if you have the <glob.h> header file. */
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/* #undef HAVE_GLOB_H */
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/* Define to 1 if you have the <grp.h> header file. */
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/* #undef HAVE_GRP_H */
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/* Define to 1 if you have the <libunwind.h> header file. */
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/* #undef HAVE_LIBUNWIND_H */
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/* Define if this is Linux that has SIGEV_THREAD_ID */
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/* #undef HAVE_LINUX_SIGEV_THREAD_ID */
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/* Define to 1 if you have the <malloc.h> header file. */
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#define HAVE_MALLOC_H 1
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/* Define to 1 if you have the <memory.h> header file. */
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#define HAVE_MEMORY_H 1
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/* Define to 1 if you have a working `mmap' system call. */
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/* #undef HAVE_MMAP */
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/* Define to 1 if you have the <poll.h> header file. */
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/* #undef HAVE_POLL_H */
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/* define if libc has program_invocation_name */
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/* #undef HAVE_PROGRAM_INVOCATION_NAME */
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/* Define to 1 if you have the <pwd.h> header file. */
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/* #undef HAVE_PWD_H */
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/* Define to 1 if you have the `sbrk' function. */
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/* #undef HAVE_SBRK */
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/* Define to 1 if you have the <sched.h> header file. */
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/* #undef HAVE_SCHED_H */
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/* Define to 1 if the system has the type `struct mallinfo'. */
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/* #undef HAVE_STRUCT_MALLINFO */
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/* Define to 1 if the system has the type `struct mallinfo2'. */
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/* #undef HAVE_STRUCT_MALLINFO2 */
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/* Define to 1 if you have the <sys/cdefs.h> header file. */
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/* #undef HAVE_SYS_CDEFS_H */
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/* Define to 1 if you have the <sys/resource.h> header file. */
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/* #undef HAVE_SYS_RESOURCE_H */
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/* Define to 1 if you have the <sys/socket.h> header file. */
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/* #undef HAVE_SYS_SOCKET_H */
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/* Define to 1 if you have the <sys/stat.h> header file. */
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#define HAVE_SYS_STAT_H 1
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/* Define to 1 if you have the <sys/syscall.h> header file. */
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/* #undef HAVE_SYS_SYSCALL_H */
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/* Define to 1 if you have the <sys/types.h> header file. */
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#define HAVE_SYS_TYPES_H 1
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/* Define to 1 if you have the <sys/ucontext.h> header file. */
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/* #undef HAVE_SYS_UCONTEXT_H */
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/* Define to 1 if you have the <sys/wait.h> header file. */
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/* #undef HAVE_SYS_WAIT_H */
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/* Define to 1 if you have the <ucontext.h> header file. */
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/* #undef HAVE_UCONTEXT_H */
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/* Define to 1 if you have the <unistd.h> header file. */
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/* #undef HAVE_UNISTD_H */
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/* Whether <unwind.h> contains _Unwind_Backtrace */
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/* #undef HAVE_UNWIND_BACKTRACE */
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/* Define to 1 if you have the <unwind.h> header file. */
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/* #undef HAVE_UNWIND_H */
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/* define if your compiler has __attribute__ */
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/* #undef HAVE___ATTRIBUTE__ */
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/* define if your compiler supports alignment of functions */
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/* #undef HAVE___ATTRIBUTE__ALIGNED_FN */
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/* Define to 1 if compiler supports __environ */
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/* #undef HAVE___ENVIRON */
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/* Define to 1 if you have the `__sbrk' function. */
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/* #undef HAVE___SBRK */
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/* prefix where we look for installed files */
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/* #undef INSTALL_PREFIX */
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/* Define to the sub-directory where libtool stores uninstalled libraries. */
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/* #undef LT_OBJDIR */
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/* Always the empty-string on non-windows systems. On windows, should be
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"__declspec(dllexport)". This way, when we compile the dll, we export our
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functions/classes. It's safe to define this here because config.h is only
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used internally, to compile the DLL, and every DLL source file #includes
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"config.h" before anything else. */
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#ifndef PERFTOOLS_DLL_DECL
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# define PERFTOOLS_IS_A_DLL 1 /* not set if you're statically linking */
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# define PERFTOOLS_DLL_DECL __declspec(dllexport)
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# define PERFTOOLS_DLL_DECL_FOR_UNITTESTS __declspec(dllimport)
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#endif
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/* Define 8 bytes of allocation alignment for tcmalloc */
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/* #undef TCMALLOC_ALIGN_8BYTES */
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/* Define internal page size for tcmalloc as number of left bitshift */
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/* #undef TCMALLOC_PAGE_SIZE_SHIFT */
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/* C99 says: define this to get the PRI... macros from stdint.h */
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#ifndef __STDC_FORMAT_MACROS
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# define __STDC_FORMAT_MACROS 1
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#endif
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// TODO(csilvers): include windows/port.h in every relevant source file instead?
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#include "windows/port.h"
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#endif /* GPERFTOOLS_CONFIG_H_ */
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