44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
#include "subprocess.h"
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#include <cstdio>
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#include <stdexcept>
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#include <sys/wait.h>
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using std::string;
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namespace cpputils {
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//TODO Exception safety
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string Subprocess::call(const string &command) {
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FILE *subprocessOutput = _call(command);
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string result;
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char buffer[1024];
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while(fgets(buffer, sizeof(buffer), subprocessOutput) != nullptr) {
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result += buffer;
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}
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auto returncode = pclose(subprocessOutput);
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if(WEXITSTATUS(returncode) != 0) {
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throw std::runtime_error("Subprocess \""+command+"\" exited with code "+std::to_string(WEXITSTATUS(returncode)));
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}
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return result;
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}
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int Subprocess::callAndGetReturnCode(const string &command) {
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FILE *subprocess = _call(command);
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auto returncode = pclose(subprocess);
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return WEXITSTATUS(returncode);
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}
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FILE *Subprocess::_call(const string &command) {
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FILE *subprocess = popen(command.c_str(), "r");
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if (!subprocess)
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{
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throw std::runtime_error("Error starting subprocess "+command);
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}
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return subprocess;
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}
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}
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