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94 lines
1.6 KiB
94 lines
1.6 KiB
#include "webfuse/test/process.hpp"
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#include <sys/wait.h>
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#include <fcntl.h>
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#include <csignal>
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#include <cstring>
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#include <cstdlib>
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#include <stdexcept>
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namespace webfuse
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{
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process::process(std::vector<std::string> const & commandline)
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{
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if (commandline.empty())
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{
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throw std::runtime_error("missing command");
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}
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pid = fork();
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if (pid == 0)
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{
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size_t const count = commandline.size() + 1;
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char ** args = reinterpret_cast<char**>(malloc(sizeof(char*) * count));
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args[count - 1] = nullptr;
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for(size_t i = 0; i < commandline.size(); i++)
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{
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args[i] = strdup(commandline[i].c_str());
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}
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closefrom(0);
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open("/dev/null", O_RDONLY);
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open("/dev/null", O_WRONLY);
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dup2(STDOUT_FILENO, STDERR_FILENO);
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execv(args[0], args);
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// this should not be reached
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for(size_t i = 0; i < count; i++)
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{
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free(args[i]);
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}
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free(args);
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exit(EXIT_FAILURE);
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}
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else if (pid > 0)
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{
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// parent: do nothing
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}
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else
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{
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throw std::runtime_error("failed to fork");
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}
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}
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process::~process()
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{
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if (pid > 0)
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{
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wait();
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}
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}
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void process::kill(int signal_number)
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{
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if (pid > 0)
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{
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::kill(pid, signal_number);
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}
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}
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int process::wait()
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{
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int exit_code = -1;
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if (pid > 0)
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{
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int status = 0;
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int rc = waitpid(pid, &status, 0);
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if (rc == pid)
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{
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exit_code = WEXITSTATUS(status);
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pid = 0;
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}
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}
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return exit_code;
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}
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}
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