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all: change optional to result of io (#16075)

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This commit is contained in:
yuyi
2022-10-16 14:28:57 +08:00
committed by GitHub
parent 6e46933c55
commit f6844e9766
187 changed files with 1885 additions and 1874 deletions
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18
vlib/os/notify/backend_linux.c.v
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@ -43,7 +43,7 @@ pub:
// new creates a new EpollNotifier
// The FdNotifier interface is returned to allow OS specific
// implementations without exposing the concrete type
pub fn new() ?FdNotifier {
pub fn new() !FdNotifier {
fd := C.epoll_create1(0) // 0 indicates default behavior
if fd == -1 {
return error(os.posix_get_error_msg(C.errno))
@ -69,7 +69,7 @@ const (
)
// ctl is a helper method for add, modify, and remove
fn (mut en EpollNotifier) ctl(fd int, op int, mask u32) ? {
fn (mut en EpollNotifier) ctl(fd int, op int, mask u32) ! {
event := C.epoll_event{
events: mask
data: C.epoll_data_t{
@ -82,20 +82,20 @@ fn (mut en EpollNotifier) ctl(fd int, op int, mask u32) ? {
}
// add adds a file descriptor to the watch list
fn (mut en EpollNotifier) add(fd int, events FdEventType, conf ...FdConfigFlags) ? {
fn (mut en EpollNotifier) add(fd int, events FdEventType, conf ...FdConfigFlags) ! {
mask := flags_to_mask(events, ...conf)
en.ctl(fd, C.EPOLL_CTL_ADD, mask)?
en.ctl(fd, C.EPOLL_CTL_ADD, mask)!
}
// modify sets an existing entry in the watch list to the provided events and configuration
fn (mut en EpollNotifier) modify(fd int, events FdEventType, conf ...FdConfigFlags) ? {
fn (mut en EpollNotifier) modify(fd int, events FdEventType, conf ...FdConfigFlags) ! {
mask := flags_to_mask(events, ...conf)
en.ctl(fd, C.EPOLL_CTL_MOD, mask)?
en.ctl(fd, C.EPOLL_CTL_MOD, mask)!
}
// remove removes a file descriptor from the watch list
fn (mut en EpollNotifier) remove(fd int) ? {
en.ctl(fd, C.EPOLL_CTL_DEL, 0)?
fn (mut en EpollNotifier) remove(fd int) ! {
en.ctl(fd, C.EPOLL_CTL_DEL, 0)!
}
// wait waits to be notified of events on the watch list,
@ -133,7 +133,7 @@ fn (mut en EpollNotifier) wait(timeout time.Duration) []FdEvent {
// close closes the EpollNotifier,
// any successive calls to add, modify, remove, and wait should fail
fn (mut en EpollNotifier) close() ? {
fn (mut en EpollNotifier) close() ! {
if C.close(en.epoll_fd) == -1 {
return error(os.posix_get_error_msg(C.errno))
}