forked from I2P_Developers/i2p.i2p
21b3864dfd
and then secondly fire up the router in a second java process when extraction is completed. Gonna use "optional" type in C++ to make global variables a bit less painful to use.
35 lines
1.0 KiB
C++
35 lines
1.0 KiB
C++
#include "JavaRunner.h"
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#include <dispatch/dispatch.h>
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#include <subprocess.hpp>
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#include <future>
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using namespace subprocess;
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using namespace std::experimental;
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JavaRunner::JavaRunner(std::string javaBin, const fp_proc_t& execFn, const fp_t& cb)
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: javaBinaryPath(javaBin), executingFn(execFn), exitCallbackFn(cb)
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{
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javaProcess = std::shared_ptr<Popen>(new Popen({javaBin.c_str(), "-version"}, defer_spawn{true}));
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}
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optional<std::future<int> > JavaRunner::execute()
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{
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try {
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auto executingFn = dispatch_block_create(DISPATCH_BLOCK_INHERIT_QOS_CLASS, ^{
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this->executingFn(this);
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});
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dispatch_async(dispatch_get_global_queue( DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), executingFn);
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dispatch_block_wait(executingFn, DISPATCH_TIME_FOREVER);
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// Here, the process is done executing.
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printf("Finished executingFn - Runs callbackFn\n");
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this->exitCallbackFn();
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return std::async(std::launch::async, []{ return 0; });
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} catch (std::exception* ex) {
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printf("ERROR: %s\n", ex->what());
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return nullopt;
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}
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}
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