mirror of
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5e5c3c7cb6
* remove duplicate test file * move all uuidv7 tests into plugin/type_uuid/mysql-test/type_uuid/ * remove mysys/ changes * auto my_random_bytes() fallback - removes duplicate code from uuid, and fixes all other users of my_random_bytes() that don't check the return value (because, perhaps, they don't need crypto-strong random bytes) * End of 11.6 -> 11.7 in tests * clarify the warning text * UUID_VERSION_MASK()/UUID_VARIANT_MASK() must not depend on the version * allow 4x more monotonic uuidv7 per millisecond - instead of stretching 1000 microseconds over 12 bits, let's use extra 2 bits as a counter * rename for compatibility with Percona Server (uuid_v4, uuid_v7)
248 lines
9.5 KiB
C
248 lines
9.5 KiB
C
/* Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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#ifndef MYSYS_PRIV_INCLUDED
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#define MYSYS_PRIV_INCLUDED
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#include <my_global.h>
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#include <my_sys.h>
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#include <my_crypt.h>
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C_MODE_START
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#ifdef USE_SYSTEM_WRAPPERS
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#include "system_wrappers.h"
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#endif
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#ifdef HAVE_GETRUSAGE
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#include <sys/resource.h>
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#endif
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#include <my_pthread.h>
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#ifdef HAVE_PSI_INTERFACE
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#if !defined(HAVE_PREAD) && !defined(_WIN32)
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extern PSI_mutex_key key_my_file_info_mutex;
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#endif /* !defined(HAVE_PREAD) && !defined(_WIN32) */
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#if !defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R)
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extern PSI_mutex_key key_LOCK_localtime_r;
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#endif /* !defined(HAVE_LOCALTIME_R) || !defined(HAVE_GMTIME_R) */
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extern PSI_mutex_key key_BITMAP_mutex, key_IO_CACHE_append_buffer_lock,
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key_IO_CACHE_SHARE_mutex, key_KEY_CACHE_cache_lock,
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key_my_thread_var_mutex, key_THR_LOCK_charset, key_THR_LOCK_heap,
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key_THR_LOCK_lock, key_THR_LOCK_malloc,
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key_THR_LOCK_mutex, key_THR_LOCK_myisam, key_THR_LOCK_net,
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key_THR_LOCK_open, key_THR_LOCK_threads, key_LOCK_uuid_generator,
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key_TMPDIR_mutex, key_THR_LOCK_myisam_mmap, key_LOCK_timer;
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extern PSI_cond_key key_COND_timer, key_IO_CACHE_SHARE_cond,
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key_IO_CACHE_SHARE_cond_writer, key_my_thread_var_suspend,
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key_THR_COND_threads;
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extern PSI_thread_key key_thread_timer;
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extern PSI_rwlock_key key_SAFEHASH_mutex;
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#endif /* HAVE_PSI_INTERFACE */
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extern PSI_stage_info stage_waiting_for_table_level_lock;
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/* These keys are always defined. */
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extern PSI_memory_key key_memory_DYNAMIC_STRING;
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extern PSI_memory_key key_memory_IO_CACHE;
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extern PSI_memory_key key_memory_KEY_CACHE;
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extern PSI_memory_key key_memory_LIST;
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extern PSI_memory_key key_memory_MY_BITMAP_bitmap;
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extern PSI_memory_key key_memory_MY_DIR;
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extern PSI_memory_key key_memory_MY_STAT;
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extern PSI_memory_key key_memory_MY_TMPDIR_full_list;
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extern PSI_memory_key key_memory_QUEUE;
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extern PSI_memory_key key_memory_SAFE_HASH_ENTRY;
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extern PSI_memory_key key_memory_TREE;
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extern PSI_memory_key key_memory_charset_file;
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extern PSI_memory_key key_memory_charset_loader;
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extern PSI_memory_key key_memory_defaults;
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extern PSI_memory_key key_memory_lf_dynarray;
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extern PSI_memory_key key_memory_lf_node;
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extern PSI_memory_key key_memory_lf_slist;
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extern PSI_memory_key key_memory_my_compress_alloc;
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extern PSI_memory_key key_memory_my_err_head;
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extern PSI_memory_key key_memory_my_file_info;
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extern PSI_memory_key key_memory_pack_frm;
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extern PSI_memory_key key_memory_charsets;
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extern PSI_memory_key key_memory_new;
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#ifdef _WIN32
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extern PSI_memory_key key_memory_win_SECURITY_ATTRIBUTES;
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extern PSI_memory_key key_memory_win_PACL;
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extern PSI_memory_key key_memory_win_IP_ADAPTER_ADDRESSES;
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#endif
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extern mysql_mutex_t THR_LOCK_malloc, THR_LOCK_open, THR_LOCK_keycache;
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extern mysql_mutex_t THR_LOCK_lock, THR_LOCK_net;
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extern mysql_mutex_t THR_LOCK_charset;
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#include <mysql/psi/mysql_file.h>
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#ifdef HAVE_PSI_INTERFACE
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extern PSI_file_key key_file_charset, key_file_cnf;
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#endif /* HAVE_PSI_INTERFACE */
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typedef struct {
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ulonglong counter;
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uint block_length, last_block_length;
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uchar key[MY_AES_BLOCK_SIZE];
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ulonglong inbuf_counter;
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} IO_CACHE_CRYPT;
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extern int (*_my_b_encr_read)(IO_CACHE *info,uchar *Buffer,size_t Count);
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extern int (*_my_b_encr_write)(IO_CACHE *info,const uchar *Buffer,size_t Count);
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#ifdef SAFEMALLOC
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void *sf_malloc(size_t size, myf my_flags);
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void *sf_realloc(void *ptr, size_t size, myf my_flags);
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void sf_free(void *ptr);
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size_t sf_malloc_usable_size(void *ptr, my_bool *is_thread_specific);
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#else
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#define sf_malloc(X,Y) malloc(X)
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#define sf_realloc(X,Y,Z) realloc(X,Y)
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#define sf_free(X) free(X)
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#endif
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/*
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EDQUOT is used only in 3 C files only in mysys/. If it does not exist on
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system, we set it to some value which can never happen.
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*/
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#ifndef EDQUOT
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#define EDQUOT (-1)
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#endif
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void my_error_unregister_all(void);
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#ifndef O_PATH /* not Linux */
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#if defined(O_SEARCH) /* Illumos */
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#define O_PATH O_SEARCH
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#elif defined(O_EXEC) /* FreeBSD */
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#define O_PATH O_EXEC
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#endif
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#endif
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#ifdef O_PATH
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#define HAVE_OPEN_PARENT_DIR_NOSYMLINKS
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const char *my_open_parent_dir_nosymlinks(const char *pathname, int *pdfd);
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#define NOSYMLINK_FUNCTION_BODY(AT,NOAT) \
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int dfd, res; \
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const char *filename= my_open_parent_dir_nosymlinks(pathname, &dfd); \
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if (filename == NULL) return -1; \
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res= AT; \
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if (dfd >= 0) close(dfd); \
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return res;
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#elif defined(HAVE_REALPATH) && defined(PATH_MAX)
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#define NOSYMLINK_FUNCTION_BODY(AT,NOAT) \
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char buf[PATH_MAX+1]; \
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if (realpath(pathname, buf) == NULL) return -1; \
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if (strcmp(pathname, buf)) { errno= ENOTDIR; return -1; } \
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return NOAT;
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#elif defined(HAVE_REALPATH)
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#define NOSYMLINK_FUNCTION_BODY(AT,NOAT) \
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char *buf= realpath(pathname, NULL); \
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int res; \
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if (buf == NULL) return -1; \
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if (strcmp(pathname, buf)) { errno= ENOTDIR; res= -1; } \
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else res= NOAT; \
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free(buf); \
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return res;
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#else
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#define NOSYMLINK_FUNCTION_BODY(AT,NOAT) \
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return NOAT;
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#endif
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#ifndef _WIN32
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#define CREATE_NOSYMLINK_FUNCTION(PROTO,AT,NOAT) \
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static int PROTO { NOSYMLINK_FUNCTION_BODY(AT,NOAT) }
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#else
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#define CREATE_NOSYMLINK_FUNCTION(PROTO,AT,NOAT)
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#endif
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#ifdef _WIN32
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#include <sys/stat.h>
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/* my_winfile.c exports, should not be used outside mysys */
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extern File my_win_open(const char *path, int oflag);
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extern int my_win_close(File fd);
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extern size_t my_win_read(File fd, uchar *buffer, size_t count);
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extern size_t my_win_write(File fd, const uchar *buffer, size_t count);
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extern size_t my_win_pread(File fd, uchar *buffer, size_t count,
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my_off_t offset);
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extern size_t my_win_pwrite(File fd, const uchar *buffer, size_t count,
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my_off_t offset);
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extern my_off_t my_win_lseek(File fd, my_off_t pos, int whence);
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extern int my_win_chsize(File fd, my_off_t newlength);
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extern FILE* my_win_fopen(const char *filename, const char *type);
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extern File my_win_fclose(FILE *file);
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extern File my_win_fileno(FILE *file);
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extern FILE* my_win_fdopen(File Filedes, const char *type);
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extern int my_win_stat(const char *path, struct _stati64 *buf);
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extern int my_win_fstat(File fd, struct _stati64 *buf);
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extern int my_win_fsync(File fd);
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extern File my_win_dup(File fd);
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extern File my_win_sopen(const char *path, int oflag, int shflag, int perm);
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extern File my_open_osfhandle(HANDLE handle, int oflag);
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/*
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The following constants are related to retries when file operation fails with
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ERROR_FILE_SHARING_VIOLATION
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*/
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#define FILE_SHARING_VIOLATION_RETRIES 50
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#define FILE_SHARING_VIOLATION_DELAY_MS 10
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/* DBUG injecting of ERROR_FILE_SHARING_VIOLATION */
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#ifndef DBUG_OFF
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/* Open file, without sharing. if specific DBUG keyword is set */
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#define DBUG_INJECT_FILE_SHARING_VIOLATION(filename) \
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FILE *fp= NULL; \
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do \
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{ \
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DBUG_EXECUTE_IF("file_sharing_violation", \
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fp= _fsopen(filename, "r", _SH_DENYRW);); \
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} while (0)
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/* Close the file that causes ERROR_FILE_SHARING_VIOLATION.*/
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#define DBUG_CLEAR_FILE_SHARING_VIOLATION() \
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do \
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{ \
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if (fp) \
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{ \
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DWORD tmp_err= GetLastError(); \
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fclose(fp); \
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SetLastError(tmp_err); \
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fp= NULL; \
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} \
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} while (0)
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#else
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#define DBUG_INJECT_FILE_SHARING_VIOLATION(filename) do {} while (0)
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#define DBUG_CLEAR_FILE_SHARING_VIOLATION() do {} while (0)
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#endif
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#endif
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C_MODE_END
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#endif
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