[Xenomai-git] Philippe Gerum : cobalt: introduce internal extension interface
Module: xenomai-forge
Branch: next
Commit: 4e09e1bf51803b042a0505cb8d5e3e2c73d4b451
URL:
http://git.xenomai.org/?p=xenomai-forge.git;a=commit;h=4e09e1bf51803b042a0505cb8d5e3e2c73d4b451
Author: Philippe Gerum r...@xenomai.org
Date: Tue Jul 16 15:42:58 2013 +0200
cobalt: introduce internal extension interface
Drivers from the RTDM_COBALT class are specifically designed for
extending the Cobalt/POSIX services. We need a way to expose
extension-specific handlers in the latter, so that the former may
change the default behavior at well-defined locations.
This extension mechanism should not cause any overhead when disabled,
which is the most common situation. For this reason, the extension
mechanism is compiled out when CONFIG_XENO_OPT_COBALT_EXTENSION is
disabled.
This patch introduces the cobalt_extension abstraction, aimed at
exposing a series of extension handlers as described previously, on
a per-thread basis. Extension drivers should invoke the
cobalt_thread_extend() and cobalt_thread_restrict() services to
respectively enable and disable the handlers.
At this chance, the private data field moved from the core thread
object (xnthread) to the cobalt_thread structure, since this facility
is intended for use by Cobalt extension code.
Cobalt extension drivers should include rtdm/cobalt.h, which will
read in the appropriate kernel headers, useful for implementing the
add-on features, and interposing on the existing Cobalt services via
the internal interface. Since these headers a not part of the public
kernel API, drivers should mention -Ikernel in the ccflags-y
variable from their Kbuild Makefile frag.
---
include/cobalt/kernel/thread.h |3 --
include/rtdm/Makefile.am | 13 ---
include/rtdm/Makefile.in | 11 +++---
include/rtdm/cobalt.h| 31 +
kernel/cobalt/Kconfig|3 ++
kernel/cobalt/posix/clock.h | 67 +
kernel/cobalt/posix/cond.c |4 ++-
kernel/cobalt/posix/cond.h | 11 --
kernel/cobalt/posix/cond_attr.c |3 +-
kernel/cobalt/posix/event.c |4 +-
kernel/cobalt/posix/init.c |4 +--
kernel/cobalt/posix/internal.h | 68 --
kernel/cobalt/posix/monitor.c|4 +-
kernel/cobalt/posix/mqueue.c | 12 +++---
kernel/cobalt/posix/mutex.c |4 ++-
kernel/cobalt/posix/mutex_attr.c |3 +-
kernel/cobalt/posix/registry.c |6 ++--
kernel/cobalt/posix/sem.c| 44 ++--
kernel/cobalt/posix/sem.h| 13 ++-
kernel/cobalt/posix/signal.c |2 +
kernel/cobalt/posix/syscall.c|7 +++-
kernel/cobalt/posix/thread.c | 28 +++
kernel/cobalt/posix/thread.h | 25 ++---
kernel/cobalt/posix/timer.c |3 ++
kernel/cobalt/posix/timer.h |1 +
kernel/cobalt/thread.c |1 -
26 files changed, 226 insertions(+), 149 deletions(-)
diff --git a/include/cobalt/kernel/thread.h b/include/cobalt/kernel/thread.h
index 4f5f5f5..a9c8d8d 100644
--- a/include/cobalt/kernel/thread.h
+++ b/include/cobalt/kernel/thread.h
@@ -165,8 +165,6 @@ typedef struct xnthread {
struct pt_regs *regs; /* Current register frame */
struct xnthread_user_window *u_window; /* Data visible from userland.
*/
- void *privdata; /* Private data for extension */
-
struct xnpersonality *personality; /* Originating interface/personality
*/
#ifdef CONFIG_XENO_OPT_DEBUG
@@ -232,7 +230,6 @@ static inline void xnthread_clear_info(struct xnthread
*thread, int bits)
#define xnthread_inc_rescnt(thread)({ (thread)-hrescnt++; })
#define xnthread_dec_rescnt(thread)({ --(thread)-hrescnt; })
#define xnthread_get_rescnt(thread)((thread)-hrescnt)
-#define xnthread_private(thread) ((thread)-privdata)
#define xnthread_personality(thread) ((thread)-personality)
#define xnthread_for_each_claimed(__pos, __thread) \
diff --git a/include/rtdm/Makefile.am b/include/rtdm/Makefile.am
index 4e48be8..b271df9 100644
--- a/include/rtdm/Makefile.am
+++ b/include/rtdm/Makefile.am
@@ -1,9 +1,10 @@
includesubdir = $(includedir)/rtdm
-includesub_HEADERS = \
- rtdm.h \
- rtdm_driver.h \
- rtserial.h \
- rttesting.h \
- rtcan.h \
+includesub_HEADERS = \
+ cobalt.h\
+ rtdm.h \
+ rtdm_driver.h \
+ rtserial.h \
+ rttesting.h \
+ rtcan.h \
rtipc.h
diff --git a/include/rtdm/Makefile.in b/include/rtdm/Makefile.in
index e4c3742..3e2eca4 100644
--- a/include/rtdm/Makefile.in
+++ b/include/rtdm/Makefile.in
@@ -275,11 +275,12 @@ top_builddir = @top_builddir@
top_srcdir = @top_srcdir@
includesubdir = $(includedir)/rtdm
includesub_HEADERS = \
- rtdm.h \
- rtdm_driver.h \
- rtserial.h \
- rttesting.h \
-
[Xenomai-git] Philippe Gerum : cobalt: introduce internal extension interface
Module: xenomai-forge
Branch: next
Commit: 34859da66580315c35de5eeff55681625db4954a
URL:
http://git.xenomai.org/?p=xenomai-forge.git;a=commit;h=34859da66580315c35de5eeff55681625db4954a
Author: Philippe Gerum r...@xenomai.org
Date: Tue Jul 16 15:42:58 2013 +0200
cobalt: introduce internal extension interface
Drivers from the RTDM_COBALT class are specifically designed for
extending the Cobalt/POSIX services. We need a way to expose
extension-specific handlers in the latter, so that the former may
change the default behavior at well-defined locations.
This extension mechanism should not cause any overhead when disabled,
which is the most common situation. For this reason, the extension
mechanism is compiled out when CONFIG_XENO_OPT_COBALT_EXTENSION is
disabled.
This patch introduces the cobalt_extension abstraction, aimed at
exposing a series of extension handlers as described previously, on
a per-thread basis. Extension drivers should invoke the
cobalt_thread_extend() and cobalt_thread_restrict() services to
respectively enable and disable the handlers.
At this chance, the private data field moved from the core thread
object (xnthread) to the cobalt_thread structure, since this facility
is intended for use by Cobalt extension code.
---
include/cobalt/kernel/thread.h |3 ---
include/rtdm/Makefile.am | 13 +++--
include/rtdm/Makefile.in | 11 ++-
include/rtdm/cobalt.h | 40
kernel/cobalt/Kconfig |3 +++
kernel/cobalt/posix/internal.h |3 ---
kernel/cobalt/posix/thread.c | 26 ++
kernel/cobalt/posix/thread.h |6 +-
kernel/cobalt/posix/timer.c|1 +
kernel/cobalt/thread.c |1 -
10 files changed, 88 insertions(+), 19 deletions(-)
diff --git a/include/cobalt/kernel/thread.h b/include/cobalt/kernel/thread.h
index 4f5f5f5..a9c8d8d 100644
--- a/include/cobalt/kernel/thread.h
+++ b/include/cobalt/kernel/thread.h
@@ -165,8 +165,6 @@ typedef struct xnthread {
struct pt_regs *regs; /* Current register frame */
struct xnthread_user_window *u_window; /* Data visible from userland.
*/
- void *privdata; /* Private data for extension */
-
struct xnpersonality *personality; /* Originating interface/personality
*/
#ifdef CONFIG_XENO_OPT_DEBUG
@@ -232,7 +230,6 @@ static inline void xnthread_clear_info(struct xnthread
*thread, int bits)
#define xnthread_inc_rescnt(thread)({ (thread)-hrescnt++; })
#define xnthread_dec_rescnt(thread)({ --(thread)-hrescnt; })
#define xnthread_get_rescnt(thread)((thread)-hrescnt)
-#define xnthread_private(thread) ((thread)-privdata)
#define xnthread_personality(thread) ((thread)-personality)
#define xnthread_for_each_claimed(__pos, __thread) \
diff --git a/include/rtdm/Makefile.am b/include/rtdm/Makefile.am
index 4e48be8..b271df9 100644
--- a/include/rtdm/Makefile.am
+++ b/include/rtdm/Makefile.am
@@ -1,9 +1,10 @@
includesubdir = $(includedir)/rtdm
-includesub_HEADERS = \
- rtdm.h \
- rtdm_driver.h \
- rtserial.h \
- rttesting.h \
- rtcan.h \
+includesub_HEADERS = \
+ cobalt.h\
+ rtdm.h \
+ rtdm_driver.h \
+ rtserial.h \
+ rttesting.h \
+ rtcan.h \
rtipc.h
diff --git a/include/rtdm/Makefile.in b/include/rtdm/Makefile.in
index e4c3742..3e2eca4 100644
--- a/include/rtdm/Makefile.in
+++ b/include/rtdm/Makefile.in
@@ -275,11 +275,12 @@ top_builddir = @top_builddir@
top_srcdir = @top_srcdir@
includesubdir = $(includedir)/rtdm
includesub_HEADERS = \
- rtdm.h \
- rtdm_driver.h \
- rtserial.h \
- rttesting.h \
- rtcan.h \
+ cobalt.h\
+ rtdm.h \
+ rtdm_driver.h \
+ rtserial.h \
+ rttesting.h \
+ rtcan.h \
rtipc.h
all: all-am
diff --git a/include/rtdm/cobalt.h b/include/rtdm/cobalt.h
new file mode 100644
index 000..489b7cd
--- /dev/null
+++ b/include/rtdm/cobalt.h
@@ -0,0 +1,40 @@
+/**
+ * @file
+ * This file is part of the Xenomai project.
+ *
+ * @note Copyright (C) 2013 Philippe Gerum r...@xenomai.org
+ *
+ * Xenomai 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
