本文整理汇总了C++中TError::GetErrno方法的典型用法代码示例。如果您正苦于以下问题：C++ TError::GetErrno方法的具体用法？C++ TError::GetErrno怎么用？C++ TError::GetErrno使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TError的用法示例。
在下文中一共展示了TError::GetErrno方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: Remove
TError TCgroup::Remove() const {
struct stat st;
TError error;
if (Secondary())
return TError(EError::Unknown, "Cannot create secondary cgroup " + Type());
L_ACT() << "Remove cgroup " << *this << std::endl;
error = Path().Rmdir();
/* workaround for bad synchronization */
if (error && error.GetErrno() == EBUSY &&
!Path().StatStrict(st) && st.st_nlink == 2) {
for (int i = 0; i < 100; i++) {
usleep(config().daemon().cgroup_remove_timeout_s() * 10000);
error = Path().Rmdir();
if (!error || error.GetErrno() != EBUSY)
break;
}
}
if (error && (error.GetErrno() != ENOENT || Exists()))
L_ERR() << "Cannot remove cgroup " << *this << " : " << error << std::endl;
return error;
}示例2: IdentifyClient
TError TClient::IdentifyClient(TContainerHolder &holder, bool initial) {
std::shared_ptr<TContainer> ct;
struct ucred cr;
socklen_t len = sizeof(cr);
TError error;
if (getsockopt(Fd, SOL_SOCKET, SO_PEERCRED, &cr, &len))
return TError(EError::Unknown, errno, "Cannot identify client: getsockopt() failed");
/* check that request from the same pid and container is still here */
if (!initial && Pid == cr.pid && TaskCred.Uid == cr.uid &&
TaskCred.Gid == cr.gid && !ClientContainer.expired())
return TError::Success();
TaskCred.Uid = cr.uid;
TaskCred.Gid = cr.gid;
Pid = cr.pid;
error = holder.FindTaskContainer(Pid, ct);
if (error && error.GetErrno() != ENOENT)
L_WRN() << "Cannot identify container of pid " << Pid
<< " : " << error << std::endl;
if (error)
return error;
if (!ct->IsPortoEnabled())
return TError(EError::Permission,
"Porto disabled in container " + ct->GetName());
ClientContainer = ct;
error = TPath("/proc/" + std::to_string(Pid) + "/comm").ReadAll(Comm, 64);
if (error)
Comm = "<unknown process>";
else
Comm.resize(Comm.length() - 1); /* cut \n at the end */
if (ct->IsRoot()) {
Cred.Uid = cr.uid;
Cred.Gid = cr.gid;
error = LoadGroups();
if (error && error.GetErrno() != ENOENT)
L_WRN() << "Cannot load supplementary group list" << Pid
<< " : " << error << std::endl;
} else {
/* requests from containers are executed in behalf of their owners */
Cred = ct->OwnerCred;
}
ReadOnlyAccess = !Cred.IsPortoUser();
return TError::Success();
}示例3: AcceptConnection
TError TClient::AcceptConnection(TContext &context, int listenFd) {
struct sockaddr_un peer_addr;
socklen_t peer_addr_size;
TError error;
peer_addr_size = sizeof(struct sockaddr_un);
Fd = accept4(listenFd, (struct sockaddr *) &peer_addr,
&peer_addr_size, SOCK_NONBLOCK | SOCK_CLOEXEC);
if (Fd < 0) {
error = TError(EError::Unknown, errno, "accept4()");
if (error.GetErrno() != EAGAIN)
L_WRN() << "Cannot accept client: " << error << std::endl;
return error;
}
error = IdentifyClient(*context.Cholder, true);
if (error) {
close(Fd);
Fd = -1;
return error;
}
if (Verbose)
L() << "Client connected: " << *this << std::endl;
return TError::Success();
}示例4: IdentifyClient
TError TClient::IdentifyClient(TContainerHolder &holder, bool initial) {
struct ucred cr;
socklen_t len = sizeof(cr);
TError error;
if (getsockopt(Fd, SOL_SOCKET, SO_PEERCRED, &cr, &len))
return TError(EError::Unknown, errno, "Cannot identify client: getsockopt() failed");
if (!initial && Pid == cr.pid && Cred.Uid == cr.uid && Cred.Gid == cr.gid &&
!ClientContainer.expired())
return TError::Success();
Cred.Uid = cr.uid;
Cred.Gid = cr.gid;
Pid = cr.pid;
error = TPath("/proc/" + std::to_string(Pid) + "/comm").ReadAll(Comm, 64);
if (error)
Comm = "<unknown process>";
else
Comm.resize(Comm.length() - 1); /* cut \n at the end */
error = LoadGroups();
if (error && error.GetErrno() != ENOENT)
L_WRN() << "Cannot load supplementary group list" << Pid
<< " : " << error << std::endl;
ReadOnlyAccess = !Cred.IsPortoUser();
std::shared_ptr<TContainer> container;
error = holder.FindTaskContainer(Pid, container);
if (error && error.GetErrno() != ENOENT)
L_WRN() << "Cannot identify container of pid " << Pid
<< " : " << error << std::endl;
if (error)
return error;
if (!container->Prop->Get<bool>(P_ENABLE_PORTO))
return TError(EError::Permission, "Porto disabled in container " + container->GetName());
ClientContainer = container;
return TError::Success();
}