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Read only mode #12

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e91caa0
Read only mode
elshadaghazade Nov 10, 2016
b5cbcdf
Duplication avoided
elshadaghazade Nov 10, 2016
3752a9e
Update query_log.cc
elshadaghazade Nov 10, 2016
c1deddc
Update query_log.cc on 15.11.2016
elshadaghazade Nov 14, 2016
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28 changes: 20 additions & 8 deletions percona_playback/query_log/query_log.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -57,14 +57,16 @@ class ParseQueryLogFunc: public tbb::filter {
ParseQueryLogFunc(FILE *input_file_,
unsigned int run_count_,
tbb::atomic<uint64_t> *entries_,
tbb::atomic<uint64_t> *queries_)
tbb::atomic<uint64_t> *queries_,
bool p_is_ro_mode = false)
: tbb::filter(true),
nr_entries(entries_),
nr_queries(queries_),
input_file(input_file_),
run_count(run_count_),
next_line(NULL),
next_len(0)
next_len(0),
is_ro_mode(p_is_ro_mode)
{};

void* operator() (void*);
Expand All @@ -75,11 +77,12 @@ class ParseQueryLogFunc: public tbb::filter {
unsigned int run_count;
char *next_line;
ssize_t next_len;
bool is_ro_mode;
};

void* dispatch(void *input_);

void* ParseQueryLogFunc::operator() (void*) {
void* ParseQueryLogFunc::operator() (void*) {
std::vector<boost::shared_ptr<QueryLogEntry> > *entries=
new std::vector<boost::shared_ptr<QueryLogEntry> >();

Expand Down Expand Up @@ -144,6 +147,7 @@ void* ParseQueryLogFunc::operator() (void*) {
{
(*nr_queries)++;
tmp_entry->add_query_line(std::string(line));

do {
if ((len= getline(&line, &buflen, input_file)) == -1)
{
Expand All @@ -156,7 +160,8 @@ void* ParseQueryLogFunc::operator() (void*) {
next_len= len;
break;
}
tmp_entry->add_query_line(std::string(line));
if((is_ro_mode && strnicmp("select", line, strlen("select")) == 0) || !is_ro_mode)
tmp_entry->add_query_line(std::string(line));
} while(true);
}
next:
Expand Down Expand Up @@ -333,15 +338,15 @@ class DispatchQueriesFunc : public tbb::filter {
}
};

static void LogReaderThread(FILE* input_file, unsigned int run_count, struct percona_playback_run_result *r)
static void LogReaderThread(FILE* input_file, unsigned int run_count, struct percona_playback_run_result *r, bool is_ro_mode = false)
{
tbb::pipeline p;
tbb::atomic<uint64_t> entries;
tbb::atomic<uint64_t> queries;
entries=0;
queries=0;

ParseQueryLogFunc f2(input_file, run_count, &entries, &queries);
ParseQueryLogFunc f2(input_file, run_count, &entries, &queries, is_ro_mode);
DispatchQueriesFunc f4;
p.add_filter(f2);
p.add_filter(f4);
Expand All @@ -360,6 +365,7 @@ class QueryLogPlugin : public percona_playback::InputPlugin
std::string file_name;
unsigned int read_count;
bool std_in;
bool is_ro_mode;

public:
QueryLogPlugin(const std::string &_name) :
Expand All @@ -373,6 +379,8 @@ class QueryLogPlugin : public percona_playback::InputPlugin
options.add_options()
("query-log-file",
po::value<std::string>(), _("Query log file"))
("read-only",
po::value<bool>(), _("Read only mode"))
("query-log-stdin",
po::value<bool>()->default_value(false)->zero_tokens(),
_("Read query log from stdin"))
Expand Down Expand Up @@ -435,7 +443,10 @@ class QueryLogPlugin : public percona_playback::InputPlugin
{
fprintf(stderr, _("ERROR: --query-log-file is a required option.\n"));
return -1;
}
}
// sets read only mode
if(vm.count("read-only"))
is_ro_mode = vm["read-only"].as<bool>();

return 0;
}
Expand Down Expand Up @@ -463,7 +474,8 @@ class QueryLogPlugin : public percona_playback::InputPlugin
boost::thread log_reader_thread(LogReaderThread,
input_file,
read_count,
&result);
&result,
is_ro_mode);

log_reader_thread.join();
fclose(input_file);
Expand Down