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63 lines
934 B
63 lines
934 B
#include "daemonize.hh"
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#ifdef _WIN32
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void daemonize()
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{
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// do nothing
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}
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#else
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// Unix/Linux implementation
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#include <cstdlib>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdexcept>
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void daemonize()
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{
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/* already a daemon */
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if ( getppid() == 1 ) return;
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/* Fork off the parent process */
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pid_t pid = fork();
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if (pid < 0)
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{
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throw std::runtime_error("Cannot fork!");
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}
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if (pid > 0)
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{
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exit(EXIT_SUCCESS); /*Killing the Parent Process*/
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}
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/* At this point we are executing as the child process */
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/* Create a new SID for the child process */
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pid_t sid = setsid();
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if (sid < 0)
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{
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throw std::runtime_error("Cannot call setsid()");
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}
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int fd = open("/dev/null",O_RDWR, 0);
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if (fd != -1)
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{
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dup2 (fd, STDIN_FILENO);
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dup2 (fd, STDOUT_FILENO);
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dup2 (fd, STDERR_FILENO);
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if (fd > 2)
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{
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close (fd);
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}
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}
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}
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#endif // ! _WIN32
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