server-skynet-source-3rd-je.../include/jemalloc/internal/hooks.h

#ifndef JEMALLOC_INTERNAL_HOOKS_H
#define JEMALLOC_INTERNAL_HOOKS_H

extern JEMALLOC_EXPORT void (*hooks_arena_new_hook)();
extern JEMALLOC_EXPORT void (*hooks_libc_hook)();

#define JEMALLOC_HOOK(fn, hook) ((void)(hook != NULL && (hook(), 0)), fn)

#define open JEMALLOC_HOOK(open, hooks_libc_hook)
#define read JEMALLOC_HOOK(read, hooks_libc_hook)
#define write JEMALLOC_HOOK(write, hooks_libc_hook)
#define readlink JEMALLOC_HOOK(readlink, hooks_libc_hook)
#define close JEMALLOC_HOOK(close, hooks_libc_hook)
#define creat JEMALLOC_HOOK(creat, hooks_libc_hook)
#define secure_getenv JEMALLOC_HOOK(secure_getenv, hooks_libc_hook)
/* Note that this is undef'd and re-define'd in src/prof.c. */
#define _Unwind_Backtrace JEMALLOC_HOOK(_Unwind_Backtrace, hooks_libc_hook)

#endif /* JEMALLOC_INTERNAL_HOOKS_H */
Add hooking functionality This allows us to hook chosen functions and do interesting things there (in particular: reentrancy checking). 2017-03-29 08:30:54 +08:00			`#ifndef JEMALLOC_INTERNAL_HOOKS_H`
			`#define JEMALLOC_INTERNAL_HOOKS_H`

Add basic reentrancy-checking support, and allow arena_new to reenter. This checks whether or not we're reentrant using thread-local data, and, if we are, moves certain internal allocations to use arena 0 (which should be properly initialized after bootstrapping). The immediate thing this allows is spinning up threads in arena_new, which will enable spinning up background threads there. 2017-04-01 10:59:45 +08:00			`extern JEMALLOC_EXPORT void (*hooks_arena_new_hook)();`
			`extern JEMALLOC_EXPORT void (*hooks_libc_hook)();`
Add hooking functionality This allows us to hook chosen functions and do interesting things there (in particular: reentrancy checking). 2017-03-29 08:30:54 +08:00
			`#define JEMALLOC_HOOK(fn, hook) ((void)(hook != NULL && (hook(), 0)), fn)`

			`#define open JEMALLOC_HOOK(open, hooks_libc_hook)`
			`#define read JEMALLOC_HOOK(read, hooks_libc_hook)`
			`#define write JEMALLOC_HOOK(write, hooks_libc_hook)`
			`#define readlink JEMALLOC_HOOK(readlink, hooks_libc_hook)`
			`#define close JEMALLOC_HOOK(close, hooks_libc_hook)`
			`#define creat JEMALLOC_HOOK(creat, hooks_libc_hook)`
			`#define secure_getenv JEMALLOC_HOOK(secure_getenv, hooks_libc_hook)`
			`/* Note that this is undef'd and re-define'd in src/prof.c. */`
			`#define _Unwind_Backtrace JEMALLOC_HOOK(_Unwind_Backtrace, hooks_libc_hook)`

			`#endif /* JEMALLOC_INTERNAL_HOOKS_H */`