merge with 3.23.52

BitKeeper/etc/logging_ok:
  auto-union
configure.in:
  Auto merged
Docs/manual.texi:
  Auto merged
include/my_pthread.h:
  Auto merged
include/mysql_com.h:
  Auto merged
include/mysql_version.h.in:
  Auto merged
innobase/btr/btr0cur.c:
  Auto merged
innobase/btr/btr0sea.c:
  Auto merged
innobase/buf/buf0buf.c:
  Auto merged
innobase/buf/buf0lru.c:
  Auto merged
innobase/configure.in:
  Auto merged
innobase/dict/dict0dict.c:
  Auto merged
innobase/fil/fil0fil.c:
  Auto merged
innobase/fsp/fsp0fsp.c:
  Auto merged
innobase/include/buf0buf.ic:
  Auto merged
innobase/include/dyn0dyn.ic:
  Auto merged
innobase/include/ha0ha.ic:
  Auto merged
innobase/include/sync0rw.ic:
  Auto merged
innobase/include/univ.i:
  Auto merged
innobase/lock/lock0lock.c:
  Auto merged
innobase/log/log0log.c:
  Auto merged
innobase/mem/mem0dbg.c:
  Auto merged
innobase/os/os0file.c:
  Auto merged
innobase/os/os0thread.c:
  Auto merged
innobase/page/page0cur.c:
  Auto merged
innobase/srv/srv0srv.c:
  Auto merged
innobase/sync/sync0arr.c:
  Auto merged
innobase/sync/sync0rw.c:
  Auto merged
innobase/sync/sync0sync.c:
  Auto merged
innobase/trx/trx0trx.c:
  Auto merged
myisam/mi_create.c:
  Auto merged
sql/ha_innodb.h:
  Auto merged
sql/lex.h:
  Auto merged
sql/log.cc:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/sql_acl.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
strings/Makefile.am:
  Auto merged
support-files/mysql.server.sh:
  Auto merged
include/my_base.h:
  merge with 3.23.52 (use local file)
include/sslopt-usage.h:
  merge with 3.23.52 (use local file)
myisam/mi_search.c:
  merge with 3.23.52 (use local file)
myisam/mi_write.c:
  merge with 3.23.52 (use local file)
mysql-test/r/group_by.result:
  merge with 3.23.52
  (Need to be fixed before push)
mysys/my_pthread.c:
  merge with 3.23.52 (use local file)
sql/gen_lex_hash.cc:
  merge with 3.23.52 (use local file)
sql/ha_innodb.cc:
  Total hand-merge with 3.23.52
sql/sql_yacc.yy:
  merge with 3.23.52 (use local file)
support-files/mysql.spec.sh:
  merge with 3.23.52 (use local file)

2 files changed, 67 insertions, 28 deletions

diff --git a/innobase/os/os0file.c b/innobase/os/os0file.c
index ae3c8a45f62..3ca0fbd68a4 100644
--- a/innobase/os/os0file.c
+++ b/innobase/os/os0file.c
@@ -22,7 +22,7 @@ Created 10/21/1995 Heikki Tuuri
 
 #endif
 
-/* This specifies the file permissions InnoDB uses when it craetes files in
+/* This specifies the file permissions InnoDB uses when it creates files in
 Unix; the value of os_innodb_umask is initialized in ha_innodb.cc to
 my_umask */
 
@@ -2483,7 +2483,7 @@ loop:
 	buf += sprintf(buf, "\n");
 	
 	current_time = time(NULL);
-	time_elapsed = difftime(current_time, os_last_printout);
+	time_elapsed = 0.001 + difftime(current_time, os_last_printout);
 
 	buf += sprintf(buf,
 		"Pending flushes (fsync) log: %lu; buffer pool: %lu\n",
@@ -2518,6 +2518,21 @@ loop:
 }
 
 /**************************************************************************
+Refreshes the statistics used to print per-second averages. */
+
+void
+os_aio_refresh_stats(void)
+/*======================*/
+{
+	os_n_file_reads_old = os_n_file_reads;
+	os_n_file_writes_old = os_n_file_writes;
+	os_n_fsyncs_old = os_n_fsyncs;
+	os_bytes_read_since_printout = 0;
+	
+	os_last_printout = time(NULL);
+}
+
+/**************************************************************************
 Checks that all slots in the system have been freed, that is, there are
 no pending io operations. */
 
diff --git a/innobase/os/os0thread.c b/innobase/os/os0thread.c
index 49d4c8518fb..a8b417f4f3a 100644
--- a/innobase/os/os0thread.c
+++ b/innobase/os/os0thread.c
@@ -18,26 +18,63 @@ Created 9/8/1995 Heikki Tuuri
 
 #include "srv0srv.h"
 
+/*******************************************************************
+Compares two threads or thread ids for equality */
+
+ibool
+os_thread_eq(
+/*=========*/
+				/* out: TRUE if equal */
+	os_thread_t	a,	/* in: OS thread or thread id */
+	os_thread_t	b)	/* in: OS thread or thread id */
+{
+#ifdef __WIN__
+	if (a == b) {
+		return(TRUE);
+	}
+
+	return(FALSE);
+#else
+	if (pthread_equal(a, b)) {
+		return(TRUE);
+	}
+
+	return(FALSE);
+#endif
+}
+
+/********************************************************************
+Converts an OS thread or thread id to a ulint. It is NOT guaranteed that
+the ulint is unique for the thread though! */
+
+ulint
+os_thread_pf(
+/*=========*/
+	os_thread_t	a)
+{
+#ifdef UNIV_HPUX
+        /* In HP-UX a pthread_t is a struct of 3 fields: field1, field2,
+        field3. We do not know if field1 determines the thread uniquely. */
+
+	return((ulint)(a.field1));
+#else
+	return((ulint)a);
+#endif
+}
+
 /*********************************************************************
-Returns the thread identifier of current thread. */
+Returns the thread identifier of current thread. Currently the thread
+identifier is the thread handle itself. Note that in HP-UX pthread_t is
+a struct of 3 fields. */
 
 os_thread_id_t
 os_thread_get_curr_id(void)
 /*=======================*/
 {
 #ifdef __WIN__
-	return(GetCurrentThreadId());
+	return(GetCurrentThread());
 #else
-	pthread_t    pthr;
-
-	pthr = pthread_self();
-
-	/* TODO: in the future we have to change os_thread_id
-	   to pthread_t; the following cast may work in a wrong way on some
-	   systems if pthread_t is a struct; this is just a quick fix
-	   for HP-UX to eliminate a compiler warning */
-
-	return(*(os_thread_id_t*)((void*) (&pthr)));
+	return(pthread_self());
 #endif
 }
 
@@ -71,7 +108,6 @@ os_thread_create(
 				arg,
 				0,	/* thread runs immediately */
 				thread_id);
-	ut_a(thread);
 
 	if (srv_set_thread_priorities) {
 
@@ -108,7 +144,7 @@ Returns handle to the current thread. */
 
 os_thread_t
 os_thread_get_curr(void)
-/*=======================*/
+/*====================*/
 {
 #ifdef __WIN__
 	return(GetCurrentThread());
@@ -116,18 +152,6 @@ os_thread_get_curr(void)
 	return(pthread_self());
 #endif
 }
-
-/*********************************************************************
-Converts a thread id to a ulint. */
-
-ulint
-os_thread_conv_id_to_ulint(
-/*=======================*/
-				/* out: converted to ulint */
-	os_thread_id_t	id)	/* in: thread id */
-{
-	return((ulint)id);
-}
 	
 /*********************************************************************
 Advises the os to give up remainder of the thread's time slice. */