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# http://pubs.opengroup.org/onlinepubs/009695399/basedefs/sys/wait.h.html
from posix.types cimport pid_t, id_t
from posix.signal cimport siginfo_t
from posix.resource cimport rusage
cdef extern from "<sys/wait.h>" nogil:
enum: WNOHANG
enum: WUNTRACED
enum: WCONTINUED
enum: WEXITED
enum: WSTOPPED
enum: WNOWAIT
int WEXITSTATUS(int status)
int WIFCONTINUED(int status)
int WIFEXITED(int status)
int WIFSIGNALED(int status)
int WIFSTOPPED(int status)
int WSTOPSIG(int status)
int WTERMSIG(int status)
ctypedef int idtype_t
enum: P_ALL # idtype_t values
enum: P_PID
enum: P_PGID
pid_t wait(int *stat_loc)
pid_t waitpid(pid_t pid, int *status, int options)
int waitid(idtype_t idtype, id_t id, siginfo_t *infop, int options)
# wait3 was in POSIX until 2008 while wait4 was never standardized.
# Even so, these calls are in almost every Unix, always in sys/wait.h.
# Hence, posix.wait is the least surprising place to declare them for Cython.
# libc may require _XXX_SOURCE to be defined at C-compile time to provide them.
pid_t wait3(int *status, int options, rusage *rusage)
pid_t wait4(pid_t pid, int *status, int options, rusage *rusage)
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