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++ /****************************************************************************
++ **
++ ** Copyright (C) 2019 Intel Corporation.
++ **
++ ** Permission is hereby granted, free of charge, to any person obtaining a copy
++ ** of this software and associated documentation files (the "Software"), to deal
++ ** in the Software without restriction, including without limitation the rights
++ ** to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
++ ** copies of the Software, and to permit persons to whom the Software is
++ ** furnished to do so, subject to the following conditions:
++ **
++ ** The above copyright notice and this permission notice shall be included in
++ ** all copies or substantial portions of the Software.
++ **
++ ** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
++ ** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
++ ** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
++ ** AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
++ ** LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
++ ** OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
++ ** THE SOFTWARE.
++ **
++ ****************************************************************************/
++
++ #ifndef FORKFD_H
++ #define FORKFD_H
++
++ #include <fcntl.h>
++ #include <stdint.h>
++ #include <sys/wait.h>
++ #include <unistd.h> // to get the POSIX flags
++
++ #if _POSIX_SPAWN > 0
++ # include <spawn.h>
++ #endif
++
++ #ifdef __cplusplus
++ extern "C" {
++ #endif
++
++ #define FFD_CLOEXEC 1
++ #define FFD_NONBLOCK 2
++ #define FFD_USE_FORK 4
++
++ #define FFD_CHILD_PROCESS (-2)
++
++ #define FFDW_NOHANG 1 /* WNOHANG */
++ #define FFDW_NOWAIT 2 /* WNOWAIT */
++
++ struct forkfd_info {
++ int32_t code;
++ int32_t status;
++ };
++
++ int forkfd(int flags, pid_t *ppid);
++ int vforkfd(int flags, pid_t *ppid, int (*childFn)(void *), void *token);
++ int forkfd_wait4(int ffd, struct forkfd_info *info, int options, struct rusage *rusage);
++ static inline int forkfd_wait(int ffd, struct forkfd_info *info, struct rusage *rusage)
++ {
++ return forkfd_wait4(ffd, info, 0, rusage);
++ }
++ int forkfd_close(int ffd);
++
++ #if _POSIX_SPAWN > 0
++ /* only for spawnfd: */
++ # define FFD_SPAWN_SEARCH_PATH O_RDWR
++
++ int spawnfd(int flags, pid_t *ppid, const char *path, const posix_spawn_file_actions_t *file_actions,
++ posix_spawnattr_t *attrp, char *const argv[], char *const envp[]);
++ #endif
++
++ #ifdef __cplusplus
++ }
++ #endif
++
++ #endif // FORKFD_H