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Fixes for embedded MySQL

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Some limit optimization


BitKeeper/deleted/.del-ib_config.h.in~9e57db8504e55b7:
  Delete: innobase/ib_config.h.in
BitKeeper/deleted/.del-ib_config.h~7539e26ffc614439:
  Delete: innobase/ib_config.h
client/errmsg.c:
  Moved error messages from libmysqld/
client/mysql.cc:
  Removed warnings
include/errmsg.h:
  New info for embedded versions
include/mysql_com.h:
  Fixes for embedded MySQL
libmysql/errmsg.c:
  Fixes for embedded MySQL
libmysqld/Makefile.am:
  Added HANDLER code
libmysqld/lib_sql.cc:
  Fixes for embedded MySQL
libmysqld/lib_vio.c:
  Fixes for embedded MySQL
BitKeeper/etc/ignore:
  Added libmysqld/sql_handler.cc to the ignore list
libmysqld/libmysqld.c:
  Fixes for embedded MySQL
mysql-test/r/null_key.result:
  Fixed result for 4.0
sql/net_serv.cc:
  Fixes for embedded MySQL
sql/sql_parse.cc:
  Fixes for embedded MySQL where the query could be a const char*
sql/sql_select.cc:
  Added limit optimization
sql/sql_select.h:
  Added limit optimization
This commit is contained in:
unknown
2001-04-25 01:11:29 +03:00
parent 7337a193b1
commit dbd56fcdc5
17 changed files with 95 additions and 229 deletions
Download Patch File Download Diff File Expand all files Collapse all files

133
libmysqld/libmysqld.c
View File

@ -14,12 +14,13 @@
License along with this library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA */
#define DONT_USE_RAID
#include <global.h>
#if defined(__WIN__) || defined(_WIN32) || defined(_WIN64)
#include <winsock.h>
#include <odbcinst.h>
#endif
#include <global.h>
#include <my_sys.h>
#include <mysys_err.h>
#include <m_string.h>
@ -95,20 +96,9 @@ static sig_handler pipe_sig_handler(int sig);
static ulong mysql_sub_escape_string(CHARSET_INFO *charset_info, char *to,
const char *from, ulong length);
/*
Let the user specify that we don't want SIGPIPE; This doesn't however work
with threaded applications as we can have multiple read in progress.
*/
#if !defined(__WIN__) && defined(SIGPIPE) && !defined(THREAD)
#define init_sigpipe_variables sig_return old_signal_handler=(sig_return) 0;
#define set_sigpipe(mysql) if ((mysql)->client_flag & CLIENT_IGNORE_SIGPIPE) old_signal_handler=signal(SIGPIPE,pipe_sig_handler)
#define reset_sigpipe(mysql) if ((mysql)->client_flag & CLIENT_IGNORE_SIGPIPE) signal(SIGPIPE,old_signal_handler);
#else
#define init_sigpipe_variables
#define set_sigpipe(mysql)
#define reset_sigpipe(mysql)
#endif
#if 0
/****************************************************************************
@ -212,78 +202,6 @@ static int connect2(my_socket s, const struct sockaddr *name, uint namelen,
}
#endif /* 0 */
/*
** Create a named pipe connection
*/
#ifdef __WIN__
HANDLE create_named_pipe(NET *net, uint connect_timeout, char **arg_host,
char **arg_unix_socket)
{
HANDLE hPipe=INVALID_HANDLE_VALUE;
char szPipeName [ 257 ];
DWORD dwMode;
int i;
my_bool testing_named_pipes=0;
char *host= *arg_host, *unix_socket= *arg_unix_socket;
if ( ! unix_socket || (unix_socket)[0] == 0x00)
unix_socket = mysql_unix_port;
if (!host || !strcmp(host,LOCAL_HOST))
host=LOCAL_HOST_NAMEDPIPE;
sprintf( szPipeName, "\\\\%s\\pipe\\%s", host, unix_socket);
DBUG_PRINT("info",("Server name: '%s'. Named Pipe: %s",
host, unix_socket));
for (i=0 ; i < 100 ; i++) /* Don't retry forever */
{
if ((hPipe = CreateFile(szPipeName,
GENERIC_READ | GENERIC_WRITE,
0,
NULL,
OPEN_EXISTING,
0,
NULL )) != INVALID_HANDLE_VALUE)
break;
if (GetLastError() != ERROR_PIPE_BUSY)
{
net->last_errno=CR_NAMEDPIPEOPEN_ERROR;
sprintf(net->last_error,ER(net->last_errno),host, unix_socket,
(ulong) GetLastError());
return INVALID_HANDLE_VALUE;
}
/* wait for for an other instance */
if (! WaitNamedPipe(szPipeName, connect_timeout*1000) )
{
net->last_errno=CR_NAMEDPIPEWAIT_ERROR;
sprintf(net->last_error,ER(net->last_errno),host, unix_socket,
(ulong) GetLastError());
return INVALID_HANDLE_VALUE;
}
}
if (hPipe == INVALID_HANDLE_VALUE)
{
net->last_errno=CR_NAMEDPIPEOPEN_ERROR;
sprintf(net->last_error,ER(net->last_errno),host, unix_socket,
(ulong) GetLastError());
return INVALID_HANDLE_VALUE;
}
dwMode = PIPE_READMODE_BYTE | PIPE_WAIT;
if ( !SetNamedPipeHandleState(hPipe, &dwMode, NULL, NULL) )
{
CloseHandle( hPipe );
net->last_errno=CR_NAMEDPIPESETSTATE_ERROR;
sprintf(net->last_error,ER(net->last_errno),host, unix_socket,
(ulong) GetLastError());
return INVALID_HANDLE_VALUE;
}
*arg_host=host ; *arg_unix_socket=unix_socket; /* connect arg */
return (hPipe);
}
#endif
/*****************************************************************************
** read a packet from server. Give error message if socket was down
@ -1010,6 +928,7 @@ static void mysql_once_init()
embedded_srv_init();
init_client_errs();
mysql_port = MYSQL_PORT;
DEBUGGER_ON;
mysql_debug(NullS);
}
#ifdef THREAD
@ -1052,7 +971,6 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
uint port, const char *unix_socket,uint client_flag)
{
char buff[100],charset_name_buff[16],*end,*host_info, *charset_name;
my_socket sock;
uint pkt_length;
NET *net= &mysql->net;
DBUG_ENTER("mysql_real_connect");
@ -1082,40 +1000,14 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
if (!passwd)
{
passwd=mysql->options.password;
#ifndef DONT_USE_MYSQL_PWD
if (!passwd)
passwd=getenv("MYSQL_PWD"); /* get it from environment (haneke) */
#endif
}
if (!db || !db[0])
db=mysql->options.db;
if (!port)
port=mysql->options.port;
if (!unix_socket)
unix_socket=mysql->options.unix_socket;
port=0;
unix_socket=0;
mysql->reconnect=1; /* Reconnect as default */
mysql->server_status=SERVER_STATUS_AUTOCOMMIT;
/*
** Grab a socket and connect it to the server
*/
unix_socket=0; /* This is not used */
if (!port)
port=mysql_port;
if (!host)
host=LOCAL_HOST;
sprintf(host_info=buff,ER(CR_TCP_CONNECTION),host);
DBUG_PRINT("info",("Server name: '%s'. TCP sock: %d", host,port));
/* _WIN64 ; Assume that the (int) range is enough for socket() */
if ((sock = (my_socket) socket(AF_INET,SOCK_STREAM,0)) == SOCKET_ERROR)
{
net->last_errno=CR_IPSOCK_ERROR;
sprintf(net->last_error,ER(net->last_errno),ERRNO);
goto error;
}
host_info=(char*) ER(CR_EMBEDDED_CONNECTION);
if (my_net_init(net, net->vio))
{
vio_delete(net->vio);
@ -1199,6 +1091,7 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
/* Save connection information */
if (!user) user="";
if (!passwd) passwd="";
host=LOCAL_HOST;
if (!my_multi_malloc(MYF(0),
&mysql->host_info, (uint) strlen(host_info)+1,
&mysql->host, (uint) strlen(host)+1,
@ -1228,14 +1121,9 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
/* Send client information for access check */
client_flag|=CLIENT_CAPABILITIES;
client_flag&= ~CLIENT_COMPRESS;
if (db)
client_flag|=CLIENT_CONNECT_WITH_DB;
client_flag&= ~CLIENT_COMPRESS;
int2store(buff,client_flag);
mysql->client_flag=client_flag;
@ -1251,7 +1139,8 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
DBUG_PRINT("info",("user: %s",buff+5));
end=scramble(strend(buff+5)+1, mysql->scramble_buff, passwd,
(my_bool) (mysql->protocol_version == 9));
if (db && (mysql->server_capabilities & CLIENT_CONNECT_WITH_DB))
if (db)
{
end=strmov(end+1,db);
mysql->db=my_strdup(db,MYF(MY_WME));
@ -1264,8 +1153,6 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
if( net_safe_read(mysql) == packet_error)
goto error;
if (client_flag & CLIENT_COMPRESS) /* We will use compression */
net->compress=1;
if (db && mysql_select_db(mysql,db))
goto error;
if (mysql->options.init_command)