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dbcd3384e0
This patch ensures that all identical character sets shares the same cs->csname. This allows us to replace strcmp() in my_charset_same() with comparisons of pointers. This fixes a long standing performance issue that could cause as strcmp() for every item sent trough the protocol class to the end user. One consequence of this patch is that we don't allow one to add a character definition in the Index.xml file that changes the csname of an existing character set. This is by design as changing character set names of existing ones is extremely dangerous, especially as some storage engines just records character set numbers. As we now have a hash over character set's csname, we can in the future use that for faster access to a specific character set. This could be done by changing the hash to non unique and use the hash to find the next character set with same csname.
132 lines
6.4 KiB
C
132 lines
6.4 KiB
C
/* Copyright (c) 2000, 2016, Oracle and/or its affiliates.
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Copyright (c) 2009, 2016, MariaDB
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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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#include "mysys_priv.h"
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#include "mysys_err.h"
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#ifndef SHARED_LIBRARY
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const char *globerrs[GLOBERRS]=
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{
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"Can't create/write to file '%s' (Errcode: %M)",
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"Error reading file '%s' (Errcode: %M)",
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"Error writing file '%s' (Errcode: %M)",
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"Error on close of '%s' (Errcode: %M)",
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"Out of memory (Needed %u bytes)",
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"Error on delete of '%s' (Errcode: %M)",
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"Error on rename of '%s' to '%s' (Errcode: %M)",
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"",
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"Unexpected end-of-file found when reading file '%s' (Errcode: %M)",
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"Can't lock file (Errcode: %M)",
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"Can't unlock file (Errcode: %M)",
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"Can't read dir of '%s' (Errcode: %M)",
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"Can't get stat of '%s' (Errcode: %M)",
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"Can't change size of file (Errcode: %M)",
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"Can't open stream from handle (Errcode: %M)",
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"Can't get working directory (Errcode: %M)",
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"Can't change dir to '%s' (Errcode: %M)",
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"Warning: '%s' had %d links",
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"Warning: %d files and %d streams is left open\n",
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"Disk is full writing '%s' (Errcode: %M). Waiting for someone to free space... (Expect up to %d secs delay for server to continue after freeing disk space)",
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"Can't create directory '%s' (Errcode: %M)",
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"Character set '%s' is not a compiled character set and is not specified in the '%s' file",
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"Out of resources when opening file '%s' (Errcode: %M)",
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"Can't read value for symlink '%s' (Errcode: %M)",
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"Can't create symlink '%s' pointing at '%s' (Errcode: %M)",
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"Error on realpath() on '%s' (Errcode: %M)",
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"Can't sync file '%s' to disk (Errcode: %M)",
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"Collation '%s' is not a compiled collation and is not specified in the '%s' file",
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"File '%s' not found (Errcode: %M)",
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"File '%s' (fileno: %d) was not closed",
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"Can't change ownership of the file '%s' (Errcode: %M)",
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"Can't change permissions of the file '%s' (Errcode: %M)",
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"Can't seek in file '%s' (Errcode: %M)",
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"Can't change mode for file '%s' to 0x%lx (Errcode: %M)",
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"Warning: Can't copy ownership for file '%s' (Errcode: %M)",
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"Failed to release memory pointer %p, %zu bytes (Errcode: %M)",
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"Lock Pages in memory access rights required",
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"Memcntl %s cmd %s error",
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"Warning: Charset id '%d' csname '%s' trying to replace existing csname '%s'",
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};
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void init_glob_errs(void)
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{
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/* This is now done statically. */
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}
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#else
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void init_glob_errs()
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{
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EE(EE_CANTCREATEFILE) = "Can't create/write to file '%s' (Errcode: %M)";
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EE(EE_READ) = "Error reading file '%s' (Errcode: %M)";
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EE(EE_WRITE) = "Error writing file '%s' (Errcode: %M)";
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EE(EE_BADCLOSE) = "Error on close of '%'s (Errcode: %M)";
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EE(EE_OUTOFMEMORY) = "Out of memory (Needed %u bytes)";
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EE(EE_DELETE) = "Error on delete of '%s' (Errcode: %M)";
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EE(EE_LINK) = "Error on rename of '%s' to '%s' (Errcode: %M)";
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EE(EE_EOFERR) = "Unexpected eof found when reading file '%s' (Errcode: %M)";
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EE(EE_CANTLOCK) = "Can't lock file (Errcode: %M)";
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EE(EE_CANTUNLOCK) = "Can't unlock file (Errcode: %M)";
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EE(EE_DIR) = "Can't read dir of '%s' (Errcode: %M)";
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EE(EE_STAT) = "Can't get stat of '%s' (Errcode: %M)";
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EE(EE_CANT_CHSIZE) = "Can't change size of file (Errcode: %M)";
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EE(EE_CANT_OPEN_STREAM)= "Can't open stream from handle (Errcode: %M)";
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EE(EE_GETWD) = "Can't get working directory (Errcode: %M)";
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EE(EE_SETWD) = "Can't change dir to '%s' (Errcode: %M)";
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EE(EE_LINK_WARNING) = "Warning: '%s' had %d links";
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EE(EE_OPEN_WARNING) = "Warning: %d files and %d streams is left open\n";
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EE(EE_DISK_FULL) = "Disk is full writing '%s' (Errcode: %M). Waiting for someone to free space... (Expect up to %d secs delay for server to continue after freeing disk space)",
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EE(EE_CANT_MKDIR) ="Can't create directory '%s' (Errcode: %M)";
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EE(EE_UNKNOWN_CHARSET)= "Character set '%s' is not a compiled character set and is not specified in the %s file";
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EE(EE_OUT_OF_FILERESOURCES)="Out of resources when opening file '%s' (Errcode: %M)";
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EE(EE_CANT_READLINK)= "Can't read value for symlink '%s' (Errcode: %M)";
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EE(EE_CANT_SYMLINK)= "Can't create symlink '%s' pointing at '%s' (Errcode: %M)";
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EE(EE_REALPATH)= "Error on realpath() on '%s' (Errcode: %M)";
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EE(EE_SYNC)= "Can't sync file '%s' to disk (Errcode: %M)";
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EE(EE_UNKNOWN_COLLATION)= "Collation '%s' is not a compiled collation and is not specified in the %s file";
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EE(EE_FILENOTFOUND) = "File '%s' not found (Errcode: %M)";
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EE(EE_FILE_NOT_CLOSED) = "File '%s' (fileno: %d) was not closed";
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EE(EE_CHANGE_OWNERSHIP) = "Can't change ownership of the file '%s' (Errcode: %M)";
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EE(EE_CHANGE_PERMISSIONS) = "Can't change permissions of the file '%s' (Errcode: %M)";
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EE(EE_CANT_SEEK) = "Can't seek in file '%s' (Errcode: %M)";
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EE(EE_CANT_CHMOD) = "Can't change mode for file '%s' to 0x%lx (Errcode: %M)";
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EE(EE_CANT_COPY_OWNERSHIP)= "Warning: Can't copy ownership for file '%s' (Errcode: %M)";
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EE(EE_BADMEMORYRELEASE)= "Failed to release memory pointer %p, %zu bytes (Errcode: %M)";
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EE(EE_PERM_LOCK_MEMORY)= "Lock Pages in memory access rights required";
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EE(EE_MEMCNTL) = "Memcntl %s cmd %s error";
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EE(EE_DUPLICATE_CHARSET)= "Warning: Charset id %d trying to replace csname %s with %s";
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}
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#endif
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void wait_for_free_space(const char *filename, int errors)
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{
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if (errors == 0)
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my_error(EE_DISK_FULL,MYF(ME_BELL | ME_ERROR_LOG | ME_WARNING),
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filename,my_errno,MY_WAIT_FOR_USER_TO_FIX_PANIC);
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if (!(errors % MY_WAIT_GIVE_USER_A_MESSAGE))
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my_printf_error(EE_DISK_FULL,
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"Retry in %d secs. Message reprinted in %d secs",
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MYF(ME_BELL | ME_ERROR_LOG | ME_WARNING),
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MY_WAIT_FOR_USER_TO_FIX_PANIC,
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MY_WAIT_GIVE_USER_A_MESSAGE * MY_WAIT_FOR_USER_TO_FIX_PANIC );
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(void) sleep(MY_WAIT_FOR_USER_TO_FIX_PANIC);
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}
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const char **get_global_errmsgs(int nr __attribute__((unused)))
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{
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return globerrs;
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}
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