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#ifndef timer_hh
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#define timer_hh
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#include <errno.h>
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#include <signal.h>
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#include <exception>
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#include <sys/time.h>
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#include <sys/types.h>
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// Linux and BSD seem to name the function pointer to signal handler differently.
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// Linux names it 'sighandler_t' and BSD names it 'sig_t'. Instead of depending
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// on configure scripts to find out the type name, typedef it right here.
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typedef void (*sighandler_t_)(int);
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namespace timer{
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class error : public std::exception {
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public:
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error(int err);
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int e_err;
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};
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class interrupt_timer {
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public:
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interrupt_timer(struct timeval, sighandler_t_);
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int arm_timer();
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void disarm_timer();
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~interrupt_timer();
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private:
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sighandler_t_ new_handler, old_handler;
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struct itimerval new_val, old_val;
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bool armed;
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};
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}
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#endif
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