hardcoresushi/libcryfs
1
0
Fork 0
Code Issues Pull Requests Releases Activity

Make daemonize() work on windows

Browse Source
This commit is contained in:
Sebastian Messmer 2018-05-19 07:59:24 -07:00
parent f2831c0426
commit 736052b0ee
1 changed files with 52 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

84
src/cpp-utils/process/daemonize.cpp
View File

@ -1,4 +1,11 @@
#include "daemonize.h" #include "daemonize.h"
#include "../logging/logging.h"
using namespace cpputils::logging;
//TODO Test daemonize()
#if !defined(_MSC_VER)
#include <sys/types.h> #include <sys/types.h>
#include <sys/stat.h> #include <sys/stat.h>
@ -10,43 +17,56 @@
#include <syslog.h> #include <syslog.h>
#include <string.h> #include <string.h>
#include <iostream> #include <iostream>
#include "../logging/logging.h"
using namespace cpputils::logging;
namespace cpputils { namespace cpputils {
//TODO Test daemonize() void daemonize() {
pid_t pid = fork();
if (pid < 0) {
exit(EXIT_FAILURE);
}
if (pid > 0) {
//We're the parent process. Exit.
exit(EXIT_SUCCESS);
}
void daemonize() { // We're the child process.
pid_t pid = fork(); umask(0);
if (pid < 0) {
exit(EXIT_FAILURE);
}
if (pid > 0) {
//We're the parent process. Exit.
exit(EXIT_SUCCESS);
}
// We're the child process. // Create a new SID for the child process
umask(0); pid_t sid = setsid();
if (sid < 0) {
LOG(ERR, "Failed to get SID for daemon process");
exit(EXIT_FAILURE);
}
// Create a new SID for the child process // Change the current working directory to a directory that's always existin
pid_t sid = setsid(); if ((chdir("/")) < 0) {
if (sid < 0) { LOG(ERR, "Failed to change working directory for daemon process");
LOG(ERR, "Failed to get SID for daemon process"); exit(EXIT_FAILURE);
exit(EXIT_FAILURE); }
}
// Change the current working directory to a directory that's always existin // Close out the standard file descriptors. The process can't use them anyhow.
if ((chdir("/")) < 0) { close(STDIN_FILENO);
LOG(ERR, "Failed to change working directory for daemon process"); close(STDOUT_FILENO);
exit(EXIT_FAILURE); close(STDERR_FILENO);
} };
// Close out the standard file descriptors. The process can't use them anyhow.
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
};
} }
#else
#include <Windows.h>
namespace cpputils {
void daemonize() {
LOG(INFO, "Process started in the background. You can close this console window now.");
if (!FreeConsole()) {
LOG(ERR, "Failed to call FreeConsole()");
exit(EXIT_FAILURE);
}
}
}
#endif