The DatabaseCampaign interacts with the MySQL tables that are created
by the import-trace and prune-trace tools. It does offer all
unfinished experiment pilots from the database to the
fail-clients. Those clients send back a (by the experiment) defined
protobuf message as a result. The custom protobuf message does have to
need the form:
import "DatabaseCampaignMessage.proto";
message ExperimentMsg {
required DatabaseCampaignMessage fsppilot = 1;
repeated group Result = 2 {
// custom fields
required int32 bitoffset = 1;
optional int32 result = 2;
}
}
The DatabaseCampaignMessage is the pilot identifier from the
database. For each of the repeated result entries a row in a table is
allocated. The structure of this table is constructed (by protobuf
reflection) from the description of the message. Each field in the
Result group becomes a column in the result table. For the given
example it would be:
CREATE TABLE result_ExperimentMessage(
pilot_id INT,
bitoffset INT NOT NULL,
result INT,
PRIMARY_KEY(pilot_id)
)
Change-Id: I28fb5488e739d4098b823b42426c5760331027f8
51 lines
1.9 KiB
C++
51 lines
1.9 KiB
C++
#include <sstream>
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#include "BasicPruner.hpp"
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#include "util/Logger.hpp"
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static fail::Logger LOG ("BasicPruner");
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bool BasicPruner::prune_all() {
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std::stringstream ss;
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ss << "INSERT INTO fsppilot (known_outcome, variant_id, instr2, data_address, fspmethod_id) "
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"SELECT 0, variant_id, instr2, data_address, " << m_method_id << " "
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"FROM trace "
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"WHERE variant_id = " << m_variant_id << " AND accesstype = 'R'";
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if (!db->query(ss.str().c_str())) return false;
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ss.str("");
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int rows = db->affected_rows();
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// single entry for known outcome (write access)
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ss << "INSERT INTO fsppilot (known_outcome, variant_id, instr2, data_address, fspmethod_id) "
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"SELECT 1, variant_id, instr2, data_address, " << m_method_id << " "
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"FROM trace "
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"WHERE variant_id = " << m_variant_id << " AND accesstype = 'W' "
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"LIMIT 1";
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if (!db->query(ss.str().c_str())) return false;
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ss.str("");
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rows += db->affected_rows();
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LOG << "created " << rows << " fsppilot entries" << std::endl;
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ss << "INSERT INTO fspgroup (variant_id, instr2, data_address, fspmethod_id, pilot_id) "
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"SELECT variant_id, instr2, data_address, fspmethod_id, id "
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"FROM fsppilot "
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"WHERE known_outcome = 0 AND fspmethod_id = " << m_method_id << " AND variant_id = " << m_variant_id;
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if (!db->query(ss.str().c_str())) return false;
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ss.str("");
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rows = db->affected_rows();
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ss << "INSERT INTO fspgroup (variant_id, instr2, data_address, fspmethod_id, pilot_id) "
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"SELECT t.variant_id, t.instr2, t.data_address, p.fspmethod_id, p.id "
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"FROM trace t "
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"JOIN fsppilot p "
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"ON t.variant_id = p.variant_id AND p.fspmethod_id = " << m_method_id << " AND p.known_outcome = 1 "
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"WHERE t.variant_id = " << m_variant_id << " AND t.accesstype = 'W'";
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if (!db->query(ss.str().c_str())) return false;
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ss.str("");
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rows += db->affected_rows();
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LOG << "created " << rows << " fspgroup entries" << std::endl;
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return true;
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}
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