/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Data Differential YATL (i.e. libtest) library
*
* Copyright (C) 2012 Data Differential, http://datadifferential.com/
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* * The names of its contributors may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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*/
#pragma once
#include <unistd.h>
#include <string>
#include <signal.h>
#include <libtest/dream.h>
namespace libtest {
class Wait
{
public:
Wait(const std::string &filename, uint32_t timeout= 6) :
_successful(false)
{
uint32_t waited;
uint32_t this_wait;
uint32_t retry;
if (filename.empty())
{
_successful= false;
return;
}
for (waited= 0, retry= 1; ; retry++, waited+= this_wait)
{
if (access(filename.c_str(), R_OK) == 0)
{
_successful= true;
break;
}
else if (waited >= timeout)
{
break;
}
this_wait= retry * retry / 3 + 1;
libtest::dream(this_wait, 0);
}
}
Wait(const pid_t &_pid_arg, uint32_t timeout= 6) :
_successful(false)
{
uint32_t waited;
uint32_t this_wait;
uint32_t retry;
for (waited= 0, retry= 1; ; retry++, waited+= this_wait)
{
if (kill(_pid_arg, 0) == 0)
{
_successful= true;
break;
}
else if (waited >= timeout)
{
break;
}
this_wait= retry * retry / 3 + 1;
libtest::dream(this_wait, 0);
}
}
bool successful() const
{
return _successful;
}
private:
bool _successful;
};
} // namespace libtest