Fixes for Netware

Call pthread_mutex_destroy() on not used mutex.
Changed comments in .h and .c files from // -> /* */
Added detection of mutex on which one didn't call pthread_mutex_destroy()
Fixed bug in create_tmp_field() which causes a memory overrun in queries that uses "ORDER BY constant_expression"
Added optimisation for ORDER BY NULL

1 files changed, 38 insertions, 0 deletions

diff --git a/mysys/my_sleep.c b/mysys/my_sleep.c
new file mode 100644
index 00000000000..3de2d2abd13
--- /dev/null
+++ b/mysys/my_sleep.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2000 MySQL 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 */
+
+/* Wait a given number of microseconds */
+
+#include "mysys_priv.h"
+#include <m_string.h>
+
+void my_sleep(ulong m_seconds)
+{
+#ifdef __NETWARE__
+  delay(m_seconds/1000+1);
+#elif defined(OS2)
+  DosSleep(m_seconds/1000+1);
+#elif defined(HAVE_SELECT)
+  struct timeval t;
+  t.tv_sec=  m_seconds / 1000000L;
+  t.tv_usec= m_seconds % 1000000L;
+  select(0,0,0,0,&t); /* sleep */
+#else
+  uint sec=    (uint) (m_seconds / 1000000L);
+  ulong start= (ulong) time((time_t*) 0);
+  while ((ulong) time((time_t*) 0) < start+sec);
+#endif
+}