507c8145a9
The spawn proxy thread is a special existence in NuttX, usually some developers spend a lot of time on stack overflow of spawn proxy thread: https://github.com/apache/nuttx/issues/9046 https://github.com/apache/nuttx/pull/9081 In order to avoid similar issues, this PR will remove spawn proxy thread to simplify the process of task/posix_spawn(). 1. Postpone the related processing of spawn file actions until after task_init() 2. Delete the temporary thread of spawn proxy and related global variables Signed-off-by: chao an <anchao@xiaomi.com>
110 lines
4.1 KiB
C
110 lines
4.1 KiB
C
/****************************************************************************
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* include/nuttx/spawn.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_SPAWN_H
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#define __INCLUDE_NUTTX_SPAWN_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <spawn.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Type Definitions
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****************************************************************************/
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/* This enumerator identifies a file action */
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enum spawn_file_actions_e
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{
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SPAWN_FILE_ACTION_NONE = 0,
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SPAWN_FILE_ACTION_CLOSE,
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SPAWN_FILE_ACTION_DUP2,
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SPAWN_FILE_ACTION_OPEN
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};
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/* posix_spawn_file_actions_addclose(), posix_spawn_file_actions_adddup2(),
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* and posix_spawn_file_actions_addopen() will allocate memory and append
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* a new file action to an instance of posix_spawn_file_actions_t. The
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* internal representation of these structures are defined below:
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*/
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struct spawn_general_file_action_s
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{
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FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */
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enum spawn_file_actions_e action; /* A member of enum spawn_file_actions_e */
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};
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struct spawn_close_file_action_s
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{
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FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */
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enum spawn_file_actions_e action; /* SPAWN_FILE_ACTION_CLOSE */
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int fd; /* The file descriptor to close */
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};
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struct spawn_dup2_file_action_s
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{
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FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */
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enum spawn_file_actions_e action; /* SPAWN_FILE_ACTION_DUP2 */
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int fd1; /* The first file descriptor for dup2() */
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int fd2; /* The second file descriptor for dup2() */
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};
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struct spawn_open_file_action_s
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{
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FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */
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enum spawn_file_actions_e action; /* SPAWN_FILE_ACTION_OPEN */
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int fd; /* The file descriptor after opening */
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int oflags; /* Open flags */
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mode_t mode; /* File creation mode */
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char path[1]; /* Start of the path to be
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* opened */
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};
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#define SIZEOF_OPEN_FILE_ACTION_S(n) \
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(sizeof(struct spawn_open_file_action_s) + (n))
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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void add_file_action(FAR posix_spawn_file_actions_t *file_action,
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FAR struct spawn_general_file_action_s *entry);
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int spawn_file_actions(FAR struct tcb_s *tcb,
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FAR const posix_spawn_file_actions_t *actions);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCLUDE_NUTTX_SPAWN_H */
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