client/mysqltest.c

    added send/reap/dirty_close
include/mysql.h
    mysql_send_query()/mysql_reap_query()
libmysql/libmysql.c
    mysql_send_query()/mysql_reap_query()
mysys/my_vsnprintf.c
    fixed critical bug that codedumped when connection aborted
sql/sql_parse.cc
    0
mysql-test/r/dirty-close.result
    New BitKeeper file ``mysql-test/r/dirty-close.result''
mysql-test/t/dirty-close.test
    New BitKeeper file ``mysql-test/t/dirty-close.test''

client/mysqltest.c

@@ -61,6 +61,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <errno.h>
+#include <violite.h>
 
 #define MAX_QUERY  65536
 #define PAD_SIZE	128
@@ -71,6 +72,8 @@
 #define MIN_VAR_ALLOC	  32
 #define BLOCK_STACK_DEPTH  32
 #define MAX_EXPECTED_ERRORS 10
+#define QUERY_SEND  1
+#define QUERY_REAP  2
 
 static int record = 0, verbose = 0, silent = 0, opt_sleep=0;
 static char *db = 0, *pass=0;
@@ -147,14 +150,14 @@ struct st_query
 	 Q_SLEEP, Q_INC, Q_DEC,Q_SOURCE,
 	 Q_DISCONNECT,Q_LET, Q_ECHO, Q_WHILE, Q_END_BLOCK,
 	 Q_SYSTEM, Q_RESULT, Q_REQUIRE, Q_SAVE_MASTER_POS,
-	 Q_SYNC_WITH_MASTER, Q_ERROR,
+	 Q_SYNC_WITH_MASTER, Q_ERROR, Q_SEND, Q_REAP, Q_DIRTY_CLOSE,
 	 Q_UNKNOWN, Q_COMMENT, Q_COMMENT_WITH_COMMAND} type;
 };
 
 const char *command_names[] = {
 "connection", "query","connect","sleep","inc","dec","source","disconnect",
 "let","echo","while","end","system","result", "require", "save_master_pos",
- "sync_with_master", "error", 0
+ "sync_with_master", "error", "send", "reap", "dirty_close", 0
 };
 
 TYPELIB command_typelib= {array_elements(command_names),"",
@@ -661,6 +664,15 @@ int close_connection(struct st_query* q)
   {
     if (!strcmp(con->name, name))
     {
+      if(q->type == Q_DIRTY_CLOSE)
+	{
+	  if(con->mysql.net.vio)
+	    {
+	      vio_delete(con->mysql.net.vio);
+	      con->mysql.net.vio = 0;
+	    }
+	}
+		
       mysql_close(&con->mysql);
       DBUG_RETURN(0);
     }
@@ -1211,7 +1223,7 @@ void reject_dump(const char* record_file, char* buf, int size)
 }
 
 
-int run_query(MYSQL* mysql, struct st_query* q)
+int run_query(MYSQL* mysql, struct st_query* q, int flags)
 {
   MYSQL_RES* res = 0;
   MYSQL_FIELD* fields;
@@ -1220,6 +1232,7 @@ int run_query(MYSQL* mysql, struct st_query* q)
   unsigned long* lengths;
   char* val;
   int len;
+  int q_error = 0 ;
   DYNAMIC_STRING *ds;
   DYNAMIC_STRING ds_tmp;
   DBUG_ENTER("run_query");
@@ -1231,8 +1244,14 @@ int run_query(MYSQL* mysql, struct st_query* q)
   }
   else
     ds= &ds_res;
-
-  if (mysql_query(mysql, q->query))
+  
+  if((flags & QUERY_SEND) &&
+    (q_error = mysql_send_query(mysql, q->query)))
+    die("At line %u: unable to send query '%s'", start_lineno, q->query);
+  if(!(flags & QUERY_REAP))
+    return 0;
+  
+  if (mysql_reap_query(mysql))
   {
     if (q->require_file)
       abort_not_supported_test();
@@ -1416,7 +1435,9 @@ int main(int argc, char** argv)
       switch (q->type) {
       case Q_CONNECT: do_connect(q); break;
       case Q_CONNECTION: select_connection(q); break;
-      case Q_DISCONNECT: close_connection(q); break;
+      case Q_DISCONNECT:
+      case Q_DIRTY_CLOSE:	
+	close_connection(q); break;
       case Q_SOURCE: do_source(q); break;
       case Q_SLEEP: do_sleep(q); break;
       case Q_INC: do_inc(q); break;
@@ -1425,15 +1446,25 @@ int main(int argc, char** argv)
       case Q_SYSTEM: do_system(q); break;
       case Q_LET: do_let(q); break;
       case Q_QUERY:
+      case Q_REAP:	
       {
+	int flags = QUERY_REAP;
+	if(q->type == Q_QUERY)
+	  flags |= QUERY_SEND;
+	
 	if (save_file[0])
 	{
 	  strmov(q->record_file,save_file);
 	  q->require_file=require_file;
 	  save_file[0]=0;
 	}
-	error |= run_query(&cur_con->mysql, q); break;
+	error |= run_query(&cur_con->mysql, q, QUERY_SEND|QUERY_REAP);
+	break;
       }
+      case Q_SEND:
+	q->query += q->first_word_len;
+	error |= run_query(&cur_con->mysql, q, QUERY_SEND);
+	break;
       case Q_RESULT:
 	get_file_name(save_file,q);
 	require_file=0;

include/mysql.h

@@ -229,8 +229,12 @@ MYSQL *		STDCALL mysql_real_connect(MYSQL *mysql, const char *host,
 void		STDCALL mysql_close(MYSQL *sock);
 int		STDCALL mysql_select_db(MYSQL *mysql, const char *db);
 int		STDCALL mysql_query(MYSQL *mysql, const char *q);
+int		STDCALL mysql_send_query(MYSQL *mysql, const char *q);
+int		STDCALL mysql_reap_query(MYSQL *mysql);
 int		STDCALL mysql_real_query(MYSQL *mysql, const char *q,
 					unsigned int length);
+int		STDCALL mysql_real_send_query(MYSQL *mysql, const char *q,
+					unsigned int len);
 int		STDCALL mysql_create_db(MYSQL *mysql, const char *DB);
 int		STDCALL mysql_drop_db(MYSQL *mysql, const char *DB);
 int		STDCALL mysql_shutdown(MYSQL *mysql);

libmysql/libmysql.c

@@ -1708,6 +1708,71 @@ mysql_query(MYSQL *mysql, const char *query)
   return mysql_real_query(mysql,query, (uint) strlen(query));
 }
 
+int STDCALL
+mysql_send_query(MYSQL* mysql, const char* query)
+{
+  return mysql_real_send_query(mysql, query, strlen(query));
+}
+
+/* send the query and return so we can do something else */
+/* needs to be followed by mysql_reap_query() when we want to
+   finish processing it
+*/  
+int STDCALL
+mysql_real_send_query(MYSQL* mysql, const char* query, uint len)
+{
+  return simple_command(mysql, COM_QUERY, query, len, 1);
+}
+
+int STDCALL
+mysql_reap_query(MYSQL* mysql)
+{
+  uchar *pos;
+  ulong field_count;
+  MYSQL_DATA *fields;
+  uint len;
+  DBUG_ENTER("mysql_reap_query");
+  DBUG_PRINT("enter",("handle: %lx",mysql));
+  if((len = 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+len && 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 ((len=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;
+
+  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);
+
+}
 
 int STDCALL
 mysql_real_query(MYSQL *mysql, const char *query, uint length)

mysql-test/r/dirty-close.result

+n
+1
+2
+3

mysql-test/t/dirty-close.test

+connect (con1,localhost,root,,test,0,mysql-master.sock);
+connect (con2,localhost,root,,test,0,mysql-master.sock);
+connection con1;
+dirty_close con1;
+connection con2;
+drop table if exists t1;
+create table t1 (n int);
+insert into t1 values (1),(2),(3);
+select * from t1;
+drop table t1;

mysys/my_vsnprintf.c

@@ -24,7 +24,6 @@
 int my_vsnprintf(char *to, size_t n, const char* fmt, va_list ap)
 {
   char *start=to, *end=to+n-1;
-
   for (; *fmt ; fmt++)
   {
     if (fmt[0] != '%')
@@ -38,10 +37,14 @@ int my_vsnprintf(char *to, size_t n, const char* fmt, va_list ap)
     fmt++;
     while (isdigit(*fmt) || *fmt == '.' || *fmt == '-')
       fmt++;
+    if(*fmt == 'l')
+      fmt++;
     if (*fmt == 's')				/* String parameter */
     {
       reg2 char	*par = va_arg(ap, char *);
-      uint plen = (uint) strlen(par);
+      uint plen;
+      if(!par) par = (char*)"(null)";
+      plen = (uint) strlen(par);
       if ((uint) (end-to) > plen)	/* Replace if possible */
       {
 	to=strmov(to,par);
@@ -68,3 +71,35 @@ int my_vsnprintf(char *to, size_t n, const char* fmt, va_list ap)
   *to='\0';				/* End of errmessage */
   return (uint) (to - start);
 }
+
+#ifdef MAIN
+static void my_printf(const char * fmt, ...)
+{
+  char buf[32];
+  int n;
+  va_list ar;
+  va_start(ar, fmt);
+  n = my_vsnprintf(buf, sizeof(buf),fmt, ar);
+  printf(buf);
+  printf("n=%d, strlen=%d\n", n, strlen(buf));
+  va_end(ar);
+}
+
+int main()
+{
+  
+  my_printf("Hello\n");
+  my_printf("Hello int, %d\n", 1);
+  my_printf("Hello string '%s'\n", "I am a string");
+  my_printf("Hello hack hack hack hack hack hack hack %d\n", 1);
+  my_printf("Hello %d hack  %d\n", 1, 4);
+  my_printf("Hello %d hack hack hack hack hack %d\n", 1, 4);
+  my_printf("Hello '%s' hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh\n", "hack");
+  my_printf("Hello hhhhhhhhhhhhhh %d sssssssssssssss\n", 1);
+  my_printf("Hello  %u\n", 1);
+  my_printf("conn %ld to: '%-.64s' user: '%-.32s' host:\
+ `%-.64s' (%-.64s)", 1, 0,0,0,0);
+  return 0;
+}
+#endif
+

sql/sql_parse.cc

@@ -408,7 +408,7 @@ pthread_handler_decl(handle_one_connection,arg)
     {
       sql_print_error(ER(ER_NEW_ABORTING_CONNECTION),
 		      thd->thread_id,(thd->db ? thd->db : "unconnected"),
-		      thd->user,
+		      thd->user ? thd->user : "unauthenticated",
 		      (thd->host ? thd->host : thd->ip ? thd->ip : "unknown"),
 		      (net->last_errno ? ER(net->last_errno) :
 		       ER(ER_UNKNOWN_ERROR)));