Nabble - freebsd-threads

[stdtime.patch]
Index: gen/Makefile.inc

===================================================================

--- gen/Makefile.inc	(revision 199529)

+++ gen/Makefile.inc	(working copy)

@@ -5,7 +5,7 @@

 .PATH: ${.CURDIR}/${MACHINE_ARCH}/gen ${.CURDIR}/gen

 

 SRCS+=  __getosreldate.c __xuname.c \

-	_pthread_stubs.c _rand48.c _spinlock_stub.c _thread_init.c \

+	_once_stub.c _pthread_stubs.c _rand48.c _spinlock_stub.c _thread_init.c \

 	alarm.c arc4random.c assert.c basename.c check_utility_compat.c \

 	clock.c closedir.c confstr.c \

 	crypt.c ctermid.c daemon.c devname.c dirname.c disklabel.c \

Index: gen/_once_stub.c

===================================================================

--- gen/_once_stub.c	(revision 0)

+++ gen/_once_stub.c	(revision 0)

@@ -0,0 +1,44 @@

+/*-

+ * XXX: Copyright

+ */

+

+#include <sys/cdefs.h>

+__FBSDID("$FreeBSD$");

+

+#include "namespace.h"

+#include <pthread.h>

+#include "un-namespace.h"

+#include "libc_private.h"

+

+/*

+ * This implements pthread_once() for the single-threaded case.  It is

+ * non-static so that it can be used by _pthread_stubs.c.

+ */

+int

+_libc_once(pthread_once_t *once_control, void (*init_routine)(void))

+{

+

+	if (once_control->state == PTHREAD_NEEDS_INIT)

+		return (0);

+	init_routine();

+	once_control->state = PTHREAD_DONE_INIT;

+	return (0);

+}

+

+/*

+ * This is the internal interface provided to libc.  It will use

+ * pthread_once() from the threading library in a multi-threaded

+ * process and _libc_once() for a single-threaded library.  Because

+ * _libc_once() uses the same ABI for the values in the pthread_once_t

+ * structure as the threading library, it is safe for a process to

+ * switch from _libc_once() to pthread_once() when threading is

+ * enabled.

+ */

+int

+_once(pthread_once_t *once_control, void (*init_routine)(void))

+{

+

+	if (__isthreaded)

+		return (_pthread_once(once_control, init_routine));

+	return (_libc_once(once_control, init_routine));

+}


Property changes on: gen/_once_stub.c

___________________________________________________________________

Added: svn:mime-type

   + text/plain

Added: svn:keywords

   + FreeBSD=%H

Added: svn:eol-style

   + native


Index: gen/_pthread_stubs.c

===================================================================

--- gen/_pthread_stubs.c	(revision 199529)

+++ gen/_pthread_stubs.c	(working copy)

@@ -105,7 +105,7 @@

 	{PJT_DUAL_ENTRY(stub_zero)},    /* PJT_MUTEX_LOCK */

 	{PJT_DUAL_ENTRY(stub_zero)},    /* PJT_MUTEX_TRYLOCK */

 	{PJT_DUAL_ENTRY(stub_zero)},    /* PJT_MUTEX_UNLOCK */

-	{PJT_DUAL_ENTRY(stub_zero)},    /* PJT_ONCE */

+	{PJT_DUAL_ENTRY(_libc_once)},   /* PJT_ONCE */

 	{PJT_DUAL_ENTRY(stub_zero)},    /* PJT_RWLOCK_DESTROY */

 	{PJT_DUAL_ENTRY(stub_zero)},    /* PJT_RWLOCK_INIT */

 	{PJT_DUAL_ENTRY(stub_zero)},    /* PJT_RWLOCK_RDLOCK */

Index: stdtime/localtime.c

===================================================================

--- stdtime/localtime.c	(revision 199529)

+++ stdtime/localtime.c	(working copy)

@@ -235,9 +235,8 @@

 

 static char		lcl_TZname[TZ_STRLEN_MAX + 1];

 static int		lcl_is_set;

-static int		gmt_is_set;

+static pthread_once_t	gmt_once = PTHREAD_ONCE_INIT;

 static pthread_rwlock_t	lcl_rwlock = PTHREAD_RWLOCK_INITIALIZER;

-static pthread_mutex_t	gmt_mutex = PTHREAD_MUTEX_INITIALIZER;

 

 char *			tzname[2] = {

 	wildabbr,

@@ -1464,6 +1463,17 @@

 	return tmp;

 }

 

+static void

+gmt_init(void)

+{

+

+#ifdef ALL_STATE

+	gmtptr = (struct state *) malloc(sizeof *gmtptr);

+	if (gmtptr != NULL)

+#endif /* defined ALL_STATE */

+		gmtload(gmtptr);

+}

+

 /*

 ** gmtsub is to gmtime as localsub is to localtime.

 */

@@ -1476,16 +1486,7 @@

 {

 	register struct tm *	result;

 

-	_MUTEX_LOCK(&gmt_mutex);

-	if (!gmt_is_set) {

-#ifdef ALL_STATE

-		gmtptr = (struct state *) malloc(sizeof *gmtptr);

-		if (gmtptr != NULL)

-#endif /* defined ALL_STATE */

-			gmtload(gmtptr);

-		gmt_is_set = TRUE;

-	}

-	_MUTEX_UNLOCK(&gmt_mutex);

+	_once(&gmt_once, gmt_init);

 	result = timesub(timep, offset, gmtptr, tmp);

 #ifdef TM_ZONE

 	/*

Index: include/libc_private.h

===================================================================

--- include/libc_private.h	(revision 199529)

+++ include/libc_private.h	(working copy)

@@ -34,6 +34,7 @@

 

 #ifndef _LIBC_PRIVATE_H_

 #define _LIBC_PRIVATE_H_

+#include <sys/_pthreadtypes.h>

 

 /*

  * This global flag is non-zero when a process has created one

@@ -147,6 +148,13 @@

 void _init_tls(void);

 

 /*

+ * Provides pthread_once()-like functionality for both single-threaded and

+ * multithreaded applications.

+ */

+int _once(pthread_once_t *, void (*)(void));

+int _libc_once(pthread_once_t *, void (*)(void));

+

+/*

  * Set the TLS thread pointer

  */

 void _set_tp(void *tp);



Nabble - freebsd-threads

Re: junk/141071: drvrouph

Re: junk/141062: wijlbewt

threads/141071: drvrouph

threads/141062: wijlbewt

Current problem reports assigned to freebsd-threads@FreeBSD.org

Re: [PATCH] Add missing pthread_condattr_{init, destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init,destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init, destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init,destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init, destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init,destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init, destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init,destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init,destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init, destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init, destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init,destroy} stubs to libc

Re: [PATCH] Add missing pthread_condattr_{init, destroy} stubs to libc

Re: threads/135673: databases/mysql50-server - MySQL query lock-ups on 7.2-RELEASE amd64

[PATCH] Add missing pthread_condattr_{init,destroy} stubs to libc

Re: threads/135673: databases/mysql50-server - MySQL query lock-ups on 7.2-RELEASE amd64

Re: threads/135673: databases/mysql50-server - MySQL query lock-ups on 7.2-RELEASE amd64

Current problem reports assigned to freebsd-threads@FreeBSD.org

Re: Using pthread_once() in libc

Re: Using pthread_once() in libc

Re: Using pthread_once() in libc

Re: Using pthread_once() in libc

Re: Using pthread_once() in libc

Re: Using pthread_once() in libc

Re: Using pthread_once() in libc

Re: Using pthread_once() in libc

Re: Using pthread_once() in libc

Using pthread_once() in libc

Current problem reports assigned to freebsd-threads@FreeBSD.org

how to build libthr except other components of 'world'