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Diffstat (limited to 'nuttx/libc/spawn/spawn.h')
-rw-r--r-- | nuttx/libc/spawn/spawn.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/nuttx/libc/spawn/spawn.h b/nuttx/libc/spawn/spawn.h new file mode 100644 index 000000000..3f4e195cc --- /dev/null +++ b/nuttx/libc/spawn/spawn.h @@ -0,0 +1,121 @@ +/**************************************************************************** + * libc/spawn/spawn.h + * + * Copyright (C) 2013 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __LIBC_SPAWN_SPAWN_H +#define __LIBC_SPAWN_SPAWN_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <spawn.h> + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Type Definitions + ****************************************************************************/ +/* This enumerator identifies a file action */ + +enum spawn_file_actions_e +{ + SPAWN_FILE_ACTION_NONE = 0, + SPAWN_FILE_ACTION_CLOSE, + SPAWN_FILE_ACTION_DUP2, + SPAWN_FILE_ACTION_OPEN +}; + +/* posix_spawn_file_actions_addclose(), posix_spawn_file_actions_adddup2(), + * and posix_spawn_file_actions_addopen() will allocate memory and append + * a new file action to an instance of posix_spawn_file_actions_t. The + * internal representation of these structures are defined below: + */ + +struct spawn_general_file_action_s +{ + FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */ + enum spawn_file_actions_e action; /* A member of enum spawn_file_actions_e */ +}; + +struct spawn_close_file_action_s +{ + FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */ + enum spawn_file_actions_e action; /* SPAWN_FILE_ACTION_CLOSE */ + int fd; /* The file descriptor to close */ +}; + +struct spawn_dup2_file_action_s +{ + FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */ + enum spawn_file_actions_e action; /* SPAWN_FILE_ACTION_DUP2 */ + int fd1; /* The first file descriptor for dup2() */ + int fd2; /* The second file descriptor for dup2() */ +}; + +struct spawn_open_file_action_s +{ + FAR struct spawn_general_file_action_s *flink; /* Supports a singly linked list */ + enum spawn_file_actions_e action; /* SPAWN_FILE_ACTION_OPEN */ + int fd; /* The file descriptor after opening */ + int oflags; /* Open flags */ + mode_t mode; /* File creation mode */ + char path[1]; /* Start of the path to be + * opened */ +}; + +#define SIZEOF_OPEN_FILE_ACTION_S(n) \ + (sizeof(struct spawn_open_file_action_s) + (n)) + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#ifdef __cplusplus +extern "C" +{ +#endif + +void add_file_action(FAR posix_spawn_file_actions_t *file_action, + FAR struct spawn_general_file_action_s *entry); + +#ifdef __cplusplus +} +#endif + +#endif /* __LIBC_SPAWN_SPAWN_H */ |