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author | vvvv <vvvv@yandex-team.com> | 2024-11-07 12:29:36 +0300 |
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committer | vvvv <vvvv@yandex-team.com> | 2024-11-07 13:49:47 +0300 |
commit | d4c258e9431675bab6745c8638df6e3dfd4dca6b (patch) | |
tree | b5efcfa11351152a4c872fccaea35749141c0b11 /yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/memdebug.h | |
parent | 13a4f274caef5cfdaf0263b24e4d6bdd5521472b (diff) | |
download | ydb-d4c258e9431675bab6745c8638df6e3dfd4dca6b.tar.gz |
Moved other yql/essentials libs YQL-19206
init
commit_hash:7d4c435602078407bbf20dd3c32f9c90d2bbcbc0
Diffstat (limited to 'yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/memdebug.h')
-rw-r--r-- | yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/memdebug.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/memdebug.h b/yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/memdebug.h new file mode 100644 index 00000000000..804ed1fbc07 --- /dev/null +++ b/yql/essentials/parser/pg_wrapper/postgresql/src/include/utils/memdebug.h @@ -0,0 +1,82 @@ +/*------------------------------------------------------------------------- + * + * memdebug.h + * Memory debugging support. + * + * Currently, this file either wraps <valgrind/memcheck.h> or substitutes + * empty definitions for Valgrind client request macros we use. + * + * + * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group + * Portions Copyright (c) 1994, Regents of the University of California + * + * src/include/utils/memdebug.h + * + *------------------------------------------------------------------------- + */ +#ifndef MEMDEBUG_H +#define MEMDEBUG_H + +#ifdef USE_VALGRIND +#include <valgrind/memcheck.h> +#else +#define VALGRIND_CHECK_MEM_IS_DEFINED(addr, size) do {} while (0) +#define VALGRIND_CREATE_MEMPOOL(context, redzones, zeroed) do {} while (0) +#define VALGRIND_DESTROY_MEMPOOL(context) do {} while (0) +#define VALGRIND_MAKE_MEM_DEFINED(addr, size) do {} while (0) +#define VALGRIND_MAKE_MEM_NOACCESS(addr, size) do {} while (0) +#define VALGRIND_MAKE_MEM_UNDEFINED(addr, size) do {} while (0) +#define VALGRIND_MEMPOOL_ALLOC(context, addr, size) do {} while (0) +#define VALGRIND_MEMPOOL_FREE(context, addr) do {} while (0) +#define VALGRIND_MEMPOOL_CHANGE(context, optr, nptr, size) do {} while (0) +#endif + + +#ifdef CLOBBER_FREED_MEMORY + +/* Wipe freed memory for debugging purposes */ +static inline void +wipe_mem(void *ptr, size_t size) +{ + VALGRIND_MAKE_MEM_UNDEFINED(ptr, size); + memset(ptr, 0x7F, size); + VALGRIND_MAKE_MEM_NOACCESS(ptr, size); +} + +#endif /* CLOBBER_FREED_MEMORY */ + +#ifdef MEMORY_CONTEXT_CHECKING + +static inline void +set_sentinel(void *base, Size offset) +{ + char *ptr = (char *) base + offset; + + VALGRIND_MAKE_MEM_UNDEFINED(ptr, 1); + *ptr = 0x7E; + VALGRIND_MAKE_MEM_NOACCESS(ptr, 1); +} + +static inline bool +sentinel_ok(const void *base, Size offset) +{ + const char *ptr = (const char *) base + offset; + bool ret; + + VALGRIND_MAKE_MEM_DEFINED(ptr, 1); + ret = *ptr == 0x7E; + VALGRIND_MAKE_MEM_NOACCESS(ptr, 1); + + return ret; +} + +#endif /* MEMORY_CONTEXT_CHECKING */ + +#ifdef RANDOMIZE_ALLOCATED_MEMORY + +void randomize_mem(char *ptr, size_t size); + +#endif /* RANDOMIZE_ALLOCATED_MEMORY */ + + +#endif /* MEMDEBUG_H */ |