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Removing net emulation out of embedded library

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This commit is contained in:
hf@bison.(none)
2002-06-17 16:24:51 +05:00
parent 4375d827db
commit ede6ba5621
16 changed files with 623 additions and 304 deletions
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385
libmysqld/libmysqld.c
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@ -68,7 +68,8 @@ static MYSQL_DATA *read_rows (MYSQL *mysql,MYSQL_FIELD *fields,
static int read_one_row(MYSQL *mysql,uint fields,MYSQL_ROW row,
ulong *lengths);
static void end_server(MYSQL *mysql);
static void read_user_name(char *name);
/*static void read_user_name(char *name);
*/
static void append_wild(char *to,char *end,const char *wild);
static int send_file_to_server(MYSQL *mysql,const char *filename);
static ulong mysql_sub_escape_string(CHARSET_INFO *charset_info, char *to,
@ -238,8 +239,7 @@ simple_command(MYSQL *mysql,enum enum_server_command command, const char *arg,
result = lib_dispatch_command(command, net, arg,length);
if (!skipp_check)
result= ((mysql->packet_length=net_safe_read(mysql)) == packet_error ?
-1 : 0);
result= mysql->net.last_errno ? -1 : 0;
end:
return result;
}
@ -261,6 +261,8 @@ struct passwd *getpwuid(uid_t);
char* getlogin(void);
#endif
#ifdef _DUMMY
#if !defined(MSDOS) && ! defined(VMS) && !defined(__WIN__)
static void read_user_name(char *name)
{
@ -307,6 +309,7 @@ static void read_user_name(char *name)
}
#endif
#endif /*_DUMMY */
#ifdef __WIN__
static my_bool is_NT(void)
@ -391,7 +394,7 @@ end_server(MYSQL *mysql)
end_embedded_connection(&mysql->net);
mysql->net.vio= 0; /* Marker */
}
net_end(&mysql->net);
mysql->net.buff = NULL;
free_old_query(mysql);
DBUG_VOID_RETURN;
}
@ -782,98 +785,15 @@ mysql_connect(MYSQL *mysql,const char *host,
}
/*
** Note that the mysql argument must be initialized with mysql_init()
** before calling mysql_real_connect !
*/
int create_vio(NET *net, int separate_thread);
void set_thd(Vio *vio, void *thd);
MYSQL * STDCALL
mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
const char *passwd, const char *db,
uint port, const char *unix_socket,uint client_flag)
/************/
static inline int mysql_init_charset(MYSQL *mysql)
{
char buff[100],charset_name_buff[16],*end,*host_info, *charset_name;
uint pkt_length;
NET *net= &mysql->net;
DBUG_ENTER("mysql_real_connect");
DBUG_PRINT("enter",("host: %s db: %s user: %s",
host ? host : "(Null)",
db ? db : "(Null)",
user ? user : "(Null)"));
char charset_name_buff[16], *charset_name;
net->vio = 0; /* If something goes wrong */
/* use default options */
if (mysql->options.my_cnf_file || mysql->options.my_cnf_group)
{
mysql_read_default_options(&mysql->options,
(mysql->options.my_cnf_file ?
mysql->options.my_cnf_file : "my"),
mysql->options.my_cnf_group);
my_free(mysql->options.my_cnf_file,MYF(MY_ALLOW_ZERO_PTR));
my_free(mysql->options.my_cnf_group,MYF(MY_ALLOW_ZERO_PTR));
mysql->options.my_cnf_file=mysql->options.my_cnf_group=0;
}
/* Some empty-string-tests are done because of ODBC */
if (!host || !host[0])
host=mysql->options.host;
if (!user || !user[0])
user=mysql->options.user;
if (!passwd)
{
passwd=mysql->options.password;
}
if (!db || !db[0])
db=mysql->options.db;
port=0;
unix_socket=0;
mysql->reconnect=1; /* Reconnect as default */
mysql->server_status=SERVER_STATUS_AUTOCOMMIT;
host_info=(char*) ER(CR_EMBEDDED_CONNECTION);
if (my_net_init(net, net->vio))
{
vio_delete(net->vio);
net->last_errno=CR_OUT_OF_MEMORY;
strmov(net->last_error,ER(net->last_errno));
goto error;
}
/* Get version info */
mysql->protocol_version= PROTOCOL_VERSION; /* Assume this */
start_embedded_connection(net);
if ((pkt_length=net_safe_read(mysql)) == packet_error)
goto error;
/* Check if version of protocoll matches current one */
mysql->protocol_version= net->read_pos[0];
DBUG_DUMP("packet",(char*) net->read_pos,10);
DBUG_PRINT("info",("mysql protocol version %d, server=%d",
PROTOCOL_VERSION, mysql->protocol_version));
if (mysql->protocol_version != PROTOCOL_VERSION &&
mysql->protocol_version != PROTOCOL_VERSION-1)
{
net->last_errno= CR_VERSION_ERROR;
sprintf(net->last_error, ER(CR_VERSION_ERROR), mysql->protocol_version,
PROTOCOL_VERSION);
goto error;
}
end=strend((char*) net->read_pos+1);
mysql->thread_id=uint4korr(end+1);
end+=5;
strmake(mysql->scramble_buff,end,8);
end+=9;
if (pkt_length >= (uint) (end+1 - (char*) net->read_pos))
mysql->server_capabilities=uint2korr(end);
if (pkt_length >= (uint) (end+18 - (char*) net->read_pos))
{
/* New protocol with 16 bytes to describe server characteristics */
mysql->server_language=end[2];
mysql->server_status=uint2korr(end+3);
}
/* Set character set */
if ((charset_name=mysql->options.charset_name))
{
const char *save=charsets_dir;
@ -894,89 +814,92 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
if (!mysql->charset)
{
net->last_errno=CR_CANT_READ_CHARSET;
mysql->net.last_errno=CR_CANT_READ_CHARSET;
if (mysql->options.charset_dir)
sprintf(net->last_error,ER(net->last_errno),
sprintf(mysql->net.last_error,ER(mysql->net.last_errno),
charset_name ? charset_name : "unknown",
mysql->options.charset_dir);
else
{
char cs_dir_name[FN_REFLEN];
get_charsets_dir(cs_dir_name);
sprintf(net->last_error,ER(net->last_errno),
sprintf(mysql->net.last_error,ER(mysql->net.last_errno),
charset_name ? charset_name : "unknown",
cs_dir_name);
}
return mysql->net.last_errno;
}
return 0;
}
/*
** Note that the mysql argument must be initialized with mysql_init()
** before calling mysql_real_connect !
*/
MYSQL * STDCALL
mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
const char *passwd __attribute__((unused)), const char *db,
uint port, const char *unix_socket,uint client_flag)
{
NET *net= &mysql->net;
char *db_name;
DBUG_ENTER("mysql_real_connect");
DBUG_PRINT("enter",("host: %s db: %s user: %s",
host ? host : "(Null)",
db ? db : "(Null)",
user ? user : "(Null)"));
/* use default options */
if (mysql->options.my_cnf_file || mysql->options.my_cnf_group)
{
mysql_read_default_options(&mysql->options,
(mysql->options.my_cnf_file ?
mysql->options.my_cnf_file : "my"),
mysql->options.my_cnf_group);
my_free(mysql->options.my_cnf_file,MYF(MY_ALLOW_ZERO_PTR));
my_free(mysql->options.my_cnf_group,MYF(MY_ALLOW_ZERO_PTR));
mysql->options.my_cnf_file=mysql->options.my_cnf_group=0;
}
if (!db || !db[0])
db=mysql->options.db;
port=0;
unix_socket=0;
db_name = db ? my_strdup(db,MYF(MY_WME)) : NULL;
create_vio(net, mysql->options.separate_thread);
if (my_net_init(net, net->vio))
{
vio_delete(net->vio);
net->last_errno=CR_OUT_OF_MEMORY;
strmov(net->last_error,ER(net->last_errno));
goto error;
}
/* 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,
&mysql->unix_socket,unix_socket ?
(uint) strlen(unix_socket)+1 : (uint) 1,
&mysql->server_version,
(uint) (end - (char*) net->read_pos),
NullS) ||
!(mysql->user=my_strdup(user,MYF(0))) ||
!(mysql->passwd=my_strdup(passwd,MYF(0))))
{
strmov(net->last_error, ER(net->last_errno=CR_OUT_OF_MEMORY));
set_thd(net->vio, create_embedded_thd(net->vio, net->buff, client_flag, db_name));
init_embedded_mysql(mysql, client_flag, db_name);
if (mysql_init_charset(mysql))
goto error;
}
strmov(mysql->host_info,host_info);
strmov(mysql->host,host);
if (unix_socket)
strmov(mysql->unix_socket,unix_socket);
else
mysql->unix_socket=0;
strmov(mysql->server_version,(char*) net->read_pos+1);
mysql->port=port;
mysql->client_flag=client_flag | mysql->options.client_flag;
DBUG_PRINT("info",("Server version = '%s' capabilites: %ld status: %d",
mysql->server_version,mysql->server_capabilities,
mysql->server_status));
/* Send client information for access check */
client_flag|=CLIENT_CAPABILITIES;
client_flag&= ~CLIENT_COMPRESS;
if (db)
client_flag|=CLIENT_CONNECT_WITH_DB;
int2store(buff,client_flag);
mysql->client_flag=client_flag;
int3store(buff+2,max_allowed_packet);
if (user && user[0])
strmake(buff+5,user,32);
else
read_user_name((char*) buff+5);
#ifdef _CUSTOMCONFIG_
#include "_cust_libmysql.h";
#endif
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)
{
end=strmov(end+1,db);
mysql->db=my_strdup(db,MYF(MY_WME));
db=0;
}
if (my_net_write(net,buff,(ulong) (end-buff)) || net_flush(net))
goto error;
lib_connection_phase(net,2);
if( net_safe_read(mysql) == packet_error)
goto error;
if (db && mysql_select_db(mysql,db))
goto error;
/****
net->timeout=net_read_timeout;
*/
if (mysql->options.init_command)
{
my_bool reconnect=mysql->reconnect;
@ -1119,6 +1042,15 @@ mysql_query(MYSQL *mysql, const char *query)
int STDCALL
mysql_send_query(MYSQL* mysql, const char* query, ulong length)
{
if (mysql->options.separate_thread)
{
return -1;
}
mysql->result= NULL;
free_old_query(mysql); /* Free old result */
return simple_command(mysql, COM_QUERY, query, length, 1);
}
@ -1126,50 +1058,19 @@ mysql_send_query(MYSQL* mysql, const char* query, ulong length)
int STDCALL
mysql_read_query_result(MYSQL *mysql)
{
uchar *pos;
ulong field_count;
MYSQL_DATA *fields;
uint length;
DBUG_ENTER("mysql_read_query_result");
NET *net= get_mysql_net(mysql);
if ((length=net_safe_read(mysql)) == packet_error)
DBUG_RETURN(-1);
free_old_query(mysql); /* Free old result */
get_info:
pos=(uchar*) mysql->net.read_pos;
if ((field_count= net_field_length(&pos)) == 0)
{
mysql->affected_rows= net_field_length_ll(&pos);
mysql->insert_id= net_field_length_ll(&pos);
if (mysql->server_capabilities & CLIENT_TRANSACTIONS)
{
mysql->server_status=uint2korr(pos); pos+=2;
}
if (pos < mysql->net.read_pos+length && net_field_length(&pos))
mysql->info=(char*) pos;
DBUG_RETURN(0);
}
if (field_count == NULL_LENGTH) /* LOAD DATA LOCAL INFILE */
{
int error=send_file_to_server(mysql,(char*) pos);
if ((length=net_safe_read(mysql)) == packet_error || error)
DBUG_RETURN(-1);
goto get_info; /* Get info packet */
}
if (!(mysql->server_status & SERVER_STATUS_AUTOCOMMIT))
mysql->server_status|= SERVER_STATUS_IN_TRANS;
if (net->last_errno)
return -1;
mysql->extra_info= net_field_length_ll(&pos); /* Maybe number of rec */
if (!(fields=read_rows(mysql,(MYSQL_FIELD*) 0,5)))
DBUG_RETURN(-1);
if (!(mysql->fields=unpack_fields(fields,&mysql->field_alloc,
(uint) field_count,0,
(my_bool) test(mysql->server_capabilities &
CLIENT_LONG_FLAG))))
DBUG_RETURN(-1);
mysql->status=MYSQL_STATUS_GET_RESULT;
mysql->field_count=field_count;
DBUG_RETURN(0);
if (mysql->field_count)
{
mysql->status=MYSQL_STATUS_GET_RESULT;
mysql->affected_rows= mysql->result->row_count= mysql->result->data->rows;
mysql->result->data_cursor= mysql->result->data->data;
}
return 0;
}
/****************************************************************************
@ -1279,8 +1180,18 @@ mysql_real_query(MYSQL *mysql, const char *query, ulong length)
DBUG_ENTER("mysql_real_query");
DBUG_PRINT("enter",("handle: %lx",mysql));
DBUG_PRINT("query",("Query = \"%s\"",query));
/* if (mysql->options.separate_thread)
{
DBUG_RETURN(0);
}
mysql->result= NULL;
free_old_query(mysql);
*/
if (mysql_send_query(mysql, query, length))
DBUG_RETURN(-1);
DBUG_RETURN(mysql_read_query_result(mysql));
}
@ -1345,48 +1256,29 @@ send_file_to_server(MYSQL *mysql, const char *filename)
** Alloc result struct for buffered results. All rows are read to buffer.
** mysql_data_seek may be used.
**************************************************************************/
MYSQL_RES * STDCALL
mysql_store_result(MYSQL *mysql)
{
MYSQL_RES *result;
DBUG_ENTER("mysql_store_result");
MYSQL_RES *result= mysql->result;
if (!result)
return 0;
if (!mysql->fields)
DBUG_RETURN(0);
if (mysql->status != MYSQL_STATUS_GET_RESULT)
{
strmov(mysql->net.last_error,
ER(mysql->net.last_errno=CR_COMMANDS_OUT_OF_SYNC));
DBUG_RETURN(0);
}
mysql->status=MYSQL_STATUS_READY; /* server is ready */
if (!(result=(MYSQL_RES*) my_malloc(sizeof(MYSQL_RES)+
sizeof(ulong)*mysql->field_count,
MYF(MY_WME | MY_ZEROFILL))))
{
mysql->net.last_errno=CR_OUT_OF_MEMORY;
strmov(mysql->net.last_error, ER(mysql->net.last_errno));
DBUG_RETURN(0);
}
result->eof=1; /* Marker for buffered */
result->lengths=(ulong*) (result+1);
if (!(result->data=read_rows(mysql,mysql->fields,mysql->field_count)))
{
my_free((gptr) result,MYF(0));
DBUG_RETURN(0);
}
mysql->result= NULL;
*result->data->prev_ptr= 0;
result->eof= 1;
result->lengths= (ulong*)(result + 1);
mysql->affected_rows= result->row_count= result->data->rows;
result->data_cursor= result->data->data;
result->fields= mysql->fields;
result->field_alloc= mysql->field_alloc;
result->field_count= mysql->field_count;
result->current_field=0;
result->current_row=0; /* Must do a fetch first */
mysql->fields=0; /* fields is now in result */
DBUG_RETURN(result); /* Data fetched */
result->data_cursor= result->data->data;
mysql->status=MYSQL_STATUS_READY; /* server is ready */
return result;
}
void _0dummy()
{
send_file_to_server(NULL, NULL);
net_field_length_ll(NULL);
}
/**************************************************************************
** Alloc struct for use with unbuffered reads. Data is fetched by domand
@ -1401,41 +1293,13 @@ mysql_store_result(MYSQL *mysql)
MYSQL_RES * STDCALL
mysql_use_result(MYSQL *mysql)
{
MYSQL_RES *result;
DBUG_ENTER("mysql_use_result");
if (mysql->options.separate_thread)
DBUG_RETURN(0);
if (!mysql->fields)
DBUG_RETURN(0);
if (mysql->status != MYSQL_STATUS_GET_RESULT)
{
strmov(mysql->net.last_error,
ER(mysql->net.last_errno=CR_COMMANDS_OUT_OF_SYNC));
DBUG_RETURN(0);
}
if (!(result=(MYSQL_RES*) my_malloc(sizeof(*result)+
sizeof(ulong)*mysql->field_count,
MYF(MY_WME | MY_ZEROFILL))))
DBUG_RETURN(0);
result->lengths=(ulong*) (result+1);
if (!(result->row=(MYSQL_ROW)
my_malloc(sizeof(result->row[0])*(mysql->field_count+1), MYF(MY_WME))))
{ /* Ptrs: to one row */
my_free((gptr) result,MYF(0));
DBUG_RETURN(0);
}
result->fields= mysql->fields;
result->field_alloc= mysql->field_alloc;
result->field_count= mysql->field_count;
result->current_field=0;
result->handle= mysql;
result->current_row= 0;
mysql->fields=0; /* fields is now in result */
mysql->status=MYSQL_STATUS_USE_RESULT;
DBUG_RETURN(result); /* Data is read to be fetched */
DBUG_RETURN(mysql_store_result(mysql));
}
/**************************************************************************
** Return next field of the query results
**************************************************************************/
@ -1783,6 +1647,9 @@ mysql_options(MYSQL *mysql,enum mysql_option option, const char *arg)
case MYSQL_OPT_COMPRESS:
mysql->options.compress=1; /* Remember for connect */
break;
case MYSQL_OPT_USE_RESULT:
mysql->options.separate_thread=1; /* Use separate thread for query execution*/
break;
case MYSQL_OPT_NAMED_PIPE:
mysql->options.named_pipe=1; /* Force named pipe */
break;
@ -1872,12 +1739,12 @@ my_ulonglong STDCALL mysql_insert_id(MYSQL *mysql)
uint STDCALL mysql_errno(MYSQL *mysql)
{
return (mysql)->net.last_errno;
return get_mysql_net(mysql)->last_errno;
}
const char * STDCALL mysql_error(MYSQL *mysql)
{
return (mysql)->net.last_error;
return get_mysql_net(mysql)->last_error;
}
const char *STDCALL mysql_info(MYSQL *mysql)