X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fdaemonize.c;fp=src%2Fcommon%2Fdaemonize.c;h=0000000000000000000000000000000000000000;hp=16af5a3f78ccec5da76033a48a7d0a04bd0c38f2;hb=a6bc4ca9d659caf016ef932fcd944029737ac57c;hpb=97535efaa975ca52bf02c2d5e76351bfd2e3defa

diff --git a/src/common/daemonize.c b/src/common/daemonize.c
deleted file mode 100644
index 16af5a3f7..000000000
--- a/src/common/daemonize.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
- * Copyright (C) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * SPDX-License-Identifier: GPL-2.0-only
- *
- */
-
-#define _LGPL_SOURCE
-#include <unistd.h>
-#include <common/compat/paths.h>
-#include <fcntl.h>
-#include <sys/wait.h>
-#include <stdlib.h>
-
-#include <urcu/system.h>
-
-#include <common/daemonize.h>
-#include <common/error.h>
-
-int lttng_daemonize(pid_t *child_ppid, int *completion_flag,
-		int close_fds)
-{
-	pid_t pid;
-
-	/* Get parent pid of this process. */
-	*child_ppid = getppid();
-
-	pid = fork();
-	if (pid < 0) {
-		PERROR("fork");
-		goto error;
-	} else if (pid == 0) {
-		int fd;
-		pid_t sid;
-		int ret;
-
-		/* Child */
-
-		/*
-		 * Get the newly created parent pid so we can signal
-		 * that process when we are ready to operate.
-		 */
-		*child_ppid = getppid();
-
-		sid = setsid();
-		if (sid < 0) {
-			PERROR("setsid");
-			goto error;
-		}
-
-		/*
-		 * Try to change directory to /. If we can't well at
-		 * least notify.
-		 */
-		ret = chdir("/");
-		if (ret < 0) {
-			PERROR("chdir");
-		}
-
-		if (close_fds) {
-			fd = open(_PATH_DEVNULL, O_RDWR, 0);
-			if (fd < 0) {
-				PERROR("open %s", _PATH_DEVNULL);
-				/*
-				 * Let 0, 1 and 2 open since we can't
-				 * bind them to /dev/null.
-				 */
-			} else {
-				(void) dup2(fd, STDIN_FILENO);
-				(void) dup2(fd, STDOUT_FILENO);
-				(void) dup2(fd, STDERR_FILENO);
-				if (fd > 2) {
-					ret = close(fd);
-					if (ret < 0) {
-						PERROR("close");
-					}
-				}
-			}
-		}
-		goto end;
-	} else {
-		/* Parent */
-
-		/*
-		 * Waiting for child to notify this parent that it can
-		 * exit. Note that sleep() is interrupted before the 1
-		 * second delay as soon as the signal is received, so it
-		 * will not cause visible delay for the user.
-		 */
-		while (!CMM_LOAD_SHARED(*completion_flag)) {
-			int status;
-			pid_t ret;
-
-			/*
-			 * Check if child exists without blocking. If
-			 * so, we have to stop this parent process and
-			 * return an error.
-			 */
-			ret = waitpid(pid, &status, WNOHANG);
-			if (ret < 0 || (ret != 0 && WIFEXITED(status))) {
-				/* The child exited somehow or was not valid. */
-				goto error;
-			}
-			sleep(1);
-		}
-
-		/*
-		 * From this point on, the parent can exit and the child
-		 * is now an operational session daemon ready to serve
-		 * clients and applications.
-		 */
-		exit(EXIT_SUCCESS);
-	}
-
-end:
-	return 0;
-
-error:
-	return -1;
-}