func sysUnRlimit() *C.struct_rlimit {
// this constant is set to -1. in C, you can coerce this to an
// unsigned integer, but in go, you cannot
// we have to delay the signed->unsigned cast until runtime to
// avoid compile errors
inf := C.RLIM_INFINITY
return &C.struct_rlimit{
C.rlim_t(inf),
C.rlim_t(inf),
}
}
func sysMaxFDs() (*C.struct_rlimit, error) {
nrOpen, err := ioutil.ReadFile("/proc/sys/fs/nr_open")
if err != nil {
return nil, util.Errorf("Could not read \"/proc/sys/fs/nr_open\": %s", err)
}
maxFDs, err := strconv.Atoi(strings.TrimSpace(string(nrOpen)))
if err != nil {
return nil, util.Errorf("Could not convert %q (from \"/proc/sys/fs/nr_open\") into int: %s", nrOpen, err)
}
return &C.struct_rlimit{
C.rlim_t(maxFDs),
C.rlim_t(maxFDs),
}, nil
}
func sysUnRlimit() *C.struct_rlimit {
return &C.struct_rlimit{
C.rlim_t(C.RLIM_INFINITY),
C.rlim_t(C.RLIM_INFINITY),
}
}
func sysMaxFDs() (*C.struct_rlimit, error) {
return &C.struct_rlimit{
C.rlim_t(C.OPEN_MAX),
C.rlim_t(C.OPEN_MAX),
}, nil
}