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codership/wsrep-lib#100 Support for assign_read_view() wsrep API call

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Marshall the call from the `client_state` interface down to provider.
This commit is contained in:
Alexey Yurchenko
2019-04-30 21:31:30 +03:00
parent e9dafb7373
commit 4285ff99ea
9 changed files with 67 additions and 3 deletions
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4
src/provider.cpp
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@ -75,7 +75,7 @@ std::string wsrep::provider::capability::str(int caps)
WSREP_PRINT_CAPABILITY(annotation, "ANNOTATION");
WSREP_PRINT_CAPABILITY(preordered, "PREORDERED");
WSREP_PRINT_CAPABILITY(streaming, "STREAMING");
WSREP_PRINT_CAPABILITY(snapshot, "SNAPSHOT");
WSREP_PRINT_CAPABILITY(snapshot, "READ_VIEW");
WSREP_PRINT_CAPABILITY(nbo, "NBO");
#undef WSREP_PRINT_CAPABILITY
@ -107,7 +107,7 @@ std::string wsrep::flags_to_string(int flags)
if (flags & provider::flag::prepare)
oss << "prepare | ";
if (flags & provider::flag::snapshot)
oss << "snapshot | ";
oss << "read_view | ";
if (flags & provider::flag::implicit_deps)
oss << "implicit_deps | ";

13
src/transaction.cpp
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@ -208,6 +208,19 @@ int wsrep::transaction::prepare_for_ordering(
return 0;
}
int wsrep::transaction::assign_read_view(const wsrep::gtid* const gtid)
{
try
{
return provider().assign_read_view(ws_handle_, gtid);
}
catch (...)
{
wsrep::log_error() << "Failed to assign read view";
return 1;
}
}
int wsrep::transaction::append_key(const wsrep::key& key)
{
try

21
src/wsrep_provider_v26.cpp
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@ -690,6 +690,25 @@ wsrep::wsrep_provider_v26::run_applier(
return map_return_value(wsrep_->recv(wsrep_, applier_ctx));
}
enum wsrep::provider::status
wsrep::wsrep_provider_v26::assign_read_view(wsrep::ws_handle& ws_handle,
const wsrep::gtid* gtid)
{
const wsrep_gtid_t* gtid_ptr(NULL);
wsrep_gtid_t tmp;
if (gtid)
{
::memcpy(&tmp.uuid, gtid->id().data(), sizeof(tmp.uuid));
tmp.seqno = gtid->seqno().get();
gtid_ptr = &tmp;
}
mutable_ws_handle mwsh(ws_handle);
return map_return_value(wsrep_->assign_read_view(wsrep_, mwsh.native(),
gtid_ptr));
}
int wsrep::wsrep_provider_v26::append_key(wsrep::ws_handle& ws_handle,
const wsrep::key& key)
{
@ -714,7 +733,7 @@ int wsrep::wsrep_provider_v26::append_key(wsrep::ws_handle& ws_handle,
enum wsrep::provider::status
wsrep::wsrep_provider_v26::append_data(wsrep::ws_handle& ws_handle,
const wsrep::const_buffer& data)
const wsrep::const_buffer& data)
{
const wsrep_buf_t wsrep_buf = {data.data(), data.size()};
mutable_ws_handle mwsh(ws_handle);

2
src/wsrep_provider_v26.hpp
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@ -46,6 +46,8 @@ namespace wsrep
enum wsrep::provider::status run_applier(wsrep::high_priority_service*);
int start_transaction(wsrep::ws_handle&) { return 0; }
enum wsrep::provider::status
assign_read_view(wsrep::ws_handle&, const wsrep::gtid*);
int append_key(wsrep::ws_handle&, const wsrep::key&);
enum wsrep::provider::status
append_data(wsrep::ws_handle&, const wsrep::const_buffer&);