Files
rippled/modules/beast_core/threads/ChildProcess.cpp
2013-09-19 14:42:51 -07:00

99 lines
2.9 KiB
C++

//------------------------------------------------------------------------------
/*
This file is part of Beast: https://github.com/vinniefalco/Beast
Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
Portions of this file are from JUCE.
Copyright (c) 2013 - Raw Material Software Ltd.
Please visit http://www.juce.com
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
ChildProcess::ChildProcess() {}
ChildProcess::~ChildProcess() {}
bool ChildProcess::waitForProcessToFinish (const int timeoutMs) const
{
const uint32 timeoutTime = Time::getMillisecondCounter() + (uint32) timeoutMs;
do
{
if (! isRunning())
return true;
}
while (timeoutMs < 0 || Time::getMillisecondCounter() < timeoutTime);
return false;
}
String ChildProcess::readAllProcessOutput()
{
MemoryOutputStream result;
for (;;)
{
char buffer [512];
const int num = readProcessOutput (buffer, sizeof (buffer));
if (num <= 0)
break;
result.write (buffer, (size_t) num);
}
return result.toString();
}
//==============================================================================
class ChildProcessTests : public UnitTest
{
public:
void runTest()
{
beginTestCase ("Child Processes");
#if BEAST_WINDOWS || BEAST_MAC || BEAST_LINUX
ChildProcess p;
#if BEAST_WINDOWS
expect (p.start ("tasklist"));
#else
expect (p.start ("ls /"));
#endif
if (! p.waitForProcessToFinish (10 * 1000))
{
if (p.kill ())
p.waitForProcessToFinish (-1);
}
//String output (p.readAllProcessOutput());
//expect (output.isNotEmpty());
#endif
}
// VFALCO NOTE I had to disable this test because it was leaving
// behind a zombie process and making other unit tests fail.
// It doesnt happen with a debugger attached, or if the
// unit test is run individually.
//
ChildProcessTests() : UnitTest ("ChildProcess", "beast", runManual)
{
}
};
static ChildProcessTests childProcessTests;