pidfd.h

#if __has_include(<sys/pidfd.h>)
// Linux
#       include <sys/pidfd.h>
#else
 
// Linux
#       include <fcntl.h>
 
// cosmos
#       include <cosmos/dso_export.h>
#       include <cosmos/proc/types.hxx>
 
#       ifndef PIDFD_NONBLOCK
#               define PIDFD_NONBLOCK O_NONBLOCK
#       endif
 
// This is actually an enum, extending that transparently isn't possible, so
// cast to idtype_t. This breaks if the enum value is actually declared after
// all ... to avoid that we'd need a configure time check.
#       define P_PIDFD (idtype_t)3
 
COSMOS_API int pidfd_getfd(int pidfd, int targetfd, unsigned int flags) noexcept(true);
 
COSMOS_API int pidfd_open(pid_t pid, unsigned int flags) noexcept(true);
 
COSMOS_API int pidfd_send_signal(int pidfd, int sig, siginfo_t *info, unsigned int flags) noexcept(true);
 
#endif