Import changeset

sql/thr_malloc.cc

@@ -0,0 +1,88 @@
+/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+   
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+
+/* Mallocs for used in threads */
+
+#include "mysql_priv.h"
+
+extern "C" {
+  void sql_alloc_error_handler(void)
+  {
+    current_thd->fatal_error=1; /* purecov: inspected */
+  }
+}
+
+void init_sql_alloc(MEM_ROOT *mem_root,uint block_size)
+{
+  init_alloc_root(mem_root,block_size);
+  mem_root->error_handler=sql_alloc_error_handler;
+}
+
+
+gptr sql_alloc(uint Size)
+{
+  MEM_ROOT *root=my_pthread_getspecific_ptr(MEM_ROOT*,THR_MALLOC);
+  char *ptr= (char*) alloc_root(root,Size);
+  if (!ptr)
+  {
+    sql_print_error(ER(ER_OUT_OF_RESOURCES));
+  }
+  return ptr;
+}
+
+
+gptr sql_calloc(uint size)
+{
+  gptr ptr;
+  if ((ptr=sql_alloc(size)))
+    bzero((char*) ptr,size);
+  return ptr;
+}
+
+
+char *sql_strdup(const char *str)
+{
+  uint len=strlen(str)+1;
+  char *pos;
+  if ((pos= (char*) sql_alloc(len)))
+    memcpy(pos,str,len);
+  return pos;
+}
+
+
+char *sql_strmake(const char *str,uint len)
+{
+  char *pos;
+  if ((pos= (char*) sql_alloc(len+1)))
+  {
+    memcpy(pos,str,len);
+    pos[len]=0;
+  }
+  return pos;
+}
+
+
+gptr sql_memdup(const void *ptr,uint len)
+{
+  char *pos;
+  if ((pos= (char*) sql_alloc(len)))
+    memcpy(pos,ptr,len);
+  return pos;
+}
+
+void sql_element_free(void *ptr __attribute__((unused)))
+{} /* purecov: deadcode */