clients/drcachesim/tools/syscall_mix.h

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#ifndef _SYSCALL_MIX_H_
#define _SYSCALL_MIX_H_ 1

#include <stdint.h>

#include <mutex>
#include <string>
#include <unordered_map>

#include "analysis_tool.h"
#include "memref.h"

namespace dynamorio {
namespace drmemtrace {

class syscall_mix_t : public analysis_tool_t {
public:
    syscall_mix_t(unsigned int verbose);
    virtual ~syscall_mix_t();
    bool
    process_memref(const memref_t &memref) override;
    bool
    print_results() override;
    bool
    parallel_shard_supported() override;
    void *
    parallel_worker_init(int worker_index) override;
    std::string
    parallel_worker_exit(void *worker_data) override;
    void *
    parallel_shard_init(int shard_index, void *worker_data) override;
    bool
    parallel_shard_exit(void *shard_data) override;
    bool
    parallel_shard_memref(void *shard_data, const memref_t &memref) override;
    std::string
    parallel_shard_error(void *shard_data) override;

protected:
    struct shard_data_t {
        // Provide a virtual destructor to allow subclassing.
        virtual ~shard_data_t() = default;
        std::unordered_map<int, int64_t> syscall_counts;
        std::unordered_map<int, int64_t> syscall_trace_counts;
        std::string error;
    };

    std::unordered_map<int, shard_data_t *> shard_map_;
    // This mutex is only needed in parallel_shard_init.  In all other accesses to
    // shard_map_ (print_results) we are single-threaded.
    std::mutex shard_map_mutex_;
    shard_data_t serial_shard_;
    unsigned int knob_verbose_;

    static const std::string TOOL_NAME;
};

} // namespace drmemtrace
} // namespace dynamorio

#endif /* _SYSCALL_MIX_H_ */