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Remove exceptions from Pd_session interface

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This patch replaces exceptions of the PD session RPC interface with
result types.
The change of the quota-transfer RPC functions required the adaptation
of base/quota_transfer.h and base/child.h.
The 'alloc_signal_source' method has been renamed to 'signal_source'
to avoid an exceedingly long name of the corresponding result type.
The Pd_session::map function takes a 'Virt_range' instead of basic-type
arguments.
The 'Signal_source_capability' alias for 'Capability<Signal_source>' has
been removed.

Issue #5245
This commit is contained in:
Norman Feske
2024-06-13 16:35:00 +02:00
parent 08066269ba
commit 0d7d60a1f4
24 changed files with 302 additions and 256 deletions
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26
repos/base-linux/src/lib/base/rpc_cap_alloc.cc
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@ -41,18 +41,26 @@ Native_capability Rpc_entrypoint::_alloc_rpc_cap(Pd_session& pd, Native_capabili
{
/* first we allocate a cap from core, to allow accounting of caps. */
for (;;) {
Ram_quota ram_upgrade { 0 };
Cap_quota cap_upgrade { 0 };
try { pd.alloc_rpc_cap(_cap); break; }
catch (Out_of_ram) { ram_upgrade = Ram_quota { 2*1024*sizeof(long) }; }
catch (Out_of_caps) { cap_upgrade = Cap_quota { 4 }; }
Pd_session::Alloc_rpc_cap_result const result = pd.alloc_rpc_cap(_cap);
if (result.ok())
break;
_parent().upgrade(Parent::Env::pd(),
String<100>("ram_quota=", ram_upgrade, ", "
"cap_quota=", cap_upgrade).string());
using Error = Pd_session::Alloc_rpc_cap_error;
pd.alloc_rpc_cap(_cap).with_error([&] (Error e) {
Ram_quota ram_upgrade { 0 };
Cap_quota cap_upgrade { 0 };
switch (e) {
case Error::OUT_OF_RAM: ram_upgrade = { 2*1024*sizeof(long) }; break;
case Error::OUT_OF_CAPS: cap_upgrade = { 4 }; break;
}
_parent().upgrade(Parent::Env::pd(),
String<100>("ram_quota=", ram_upgrade, ", "
"cap_quota=", cap_upgrade).string());
});
}
return Thread::native_thread().epoll.alloc_rpc_cap();
}