[incubator-nuttx] branch master updated: libc/pthread: Implement pthread_atfork

[gu...@apache.org]

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gustavonihei pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git


The following commit(s) were added to refs/heads/master by this push:
     new 91f616e  libc/pthread: Implement pthread_atfork
91f616e is described below

commit 91f616e824a6c9153140be08289206bf6d9d0654
Author: Xiang Xiao <xi...@xiaomi.com>
AuthorDate: Mon Nov 22 14:00:24 2021 +0800

    libc/pthread: Implement pthread_atfork
    
    fork isn't supported yet, so the dummy implementation is enough.
    
    Signed-off-by: Xiang Xiao <xi...@xiaomi.com>
---
 include/pthread.h                  |  4 ++++
 libs/libc/pthread/Make.defs        |  2 +-
 libs/libc/pthread/pthread_atfork.c | 38 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/include/pthread.h b/include/pthread.h
index 4fd3bfd..602f6af 100644
--- a/include/pthread.h
+++ b/include/pthread.h
@@ -697,6 +697,10 @@ int pthread_spin_trylock(FAR pthread_spinlock_t *lock);
 int pthread_spin_unlock(FAR pthread_spinlock_t *lock);
 #endif
 
+int pthread_atfork(CODE void (*prepare)(void),
+                   CODE void (*parent)(void),
+                   CODE void (*child)(void));
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/libs/libc/pthread/Make.defs b/libs/libc/pthread/Make.defs
index b4ba995..33a5e8b 100644
--- a/libs/libc/pthread/Make.defs
+++ b/libs/libc/pthread/Make.defs
@@ -48,7 +48,7 @@ CSRCS += pthread_mutexattr_setprotocol.c pthread_mutexattr_getprotocol.c
 CSRCS += pthread_mutexattr_settype.c pthread_mutexattr_gettype.c
 CSRCS += pthread_mutexattr_setrobust.c pthread_mutexattr_getrobust.c
 CSRCS += pthread_mutex_lock.c
-CSRCS += pthread_once.c pthread_yield.c
+CSRCS += pthread_once.c pthread_yield.c pthread_atfork.c
 CSRCS += pthread_rwlock.c pthread_rwlock_rdlock.c pthread_rwlock_wrlock.c
 CSRCS += pthread_setcancelstate.c pthread_setcanceltype.c
 CSRCS += pthread_testcancel.c
diff --git a/libs/libc/pthread/pthread_atfork.c b/libs/libc/pthread/pthread_atfork.c
new file mode 100644
index 0000000..a3dd269
--- /dev/null
+++ b/libs/libc/pthread/pthread_atfork.c
@@ -0,0 +1,38 @@
+/****************************************************************************
+ * libs/libc/pthread/pthread_atfork.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <pthread.h>
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+int pthread_atfork(CODE void (*prepare)(void),
+                   CODE void (*parent)(void),
+                   CODE void (*child)(void))
+{
+  /* fork isn't supported yet, so the dummy implementation is enough. */
+
+  return 0;
+}