Functions pidfile_read() and pidfile_poll() now provied by libite.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

helpers.h

@@ -74,9 +74,6 @@ void    runlevel_set    (int pre, int now);
 int     runlevel_get    (void);
 char   *runlevel_string (int levels);
 
-pid_t   pidfile_read    (char *pidfile);
-pid_t   pidfile_poll    (char *cmd, char *path);
-
 int     pid_alive       (pid_t pid);
 char   *pid_get_name    (pid_t pid, char *name, size_t len);
 

pid.c

@@ -31,81 +31,6 @@
 #include "libite/lite.h"
 
 
-/**
- * pidfile_read - Reads a PID value from a pidfile.
- * @pidfile: File containing PID, usually in /var/run/<PROC>.pid
- *
- * This function takes a @pidfile and returns the PID found therein.
- *
- * Returns:
- * On invalid @pidfile -1 and @errno set to %EINVAL, when @pidfile does not exist -1
- * and errno set to %ENOENT.  When the pidfile is empty or when its contents cannot
- * be translated this function returns zero (0), on success this function returns
- * a PID value greater than one. PID 1 is reserved for the system init process.
- */
-pid_t pidfile_read(char *pidfile)
-{
-	pid_t pid = 0;
-	char buf[16];
-	FILE *fp;
-
-	if (!pidfile) {
-		errno = EINVAL;
-		return -1;
-	}
-
-	if (!fexist(pidfile))
-		return -1;
-
-	fp = fopen(pidfile, "r");
-	if (!fp)
-		return -1;
-
-	if (fgets(buf, sizeof(buf), fp)) {
-		errno = 0;
-		pid = (pid_t)strtol(buf, NULL, 10);
-		if (errno)
-			pid = 0;		/* Failed conversion. */
-	}
-	fclose(fp);
-
-	return pid;
-}
-
-/**
- * pidfile_poll - Poll for the existence of a pidfile and return PID
- * @cmd:  Process name, or command, called to expect a pidfile
- * @path: Path to pidfile to poll for
- *
- * This function polls for the pidfile at @path for at most 5 seconds
- * before timing out. If the file is created within that time span the
- * file is read and its PID contents returned.
- *
- * Returns:
- * The PID read from @path, or zero on timeout.
- */
-pid_t pidfile_poll(char *cmd, char *path)
-{
-	pid_t pid = 0;
-	int tries = 0;
-
-	/* Timeout = 100 * 50ms = 5s */
-	while (!fexist(path) && tries++ < 100) {
-		/* Wait 50ms between retries */
-		usleep(50000);
-	}
-
-	if (!fexist(path)) {
-		_e("Timeout! No PID found for %s, pidfile %s does not exist?", cmd, path);
-		pid = 0;
-	} else {
-		pid = pidfile_read(path);
-	}
-
-	return pid;
-}
-
-
 /**
  * pid_alive - Check if a given process ID is running
  * @pid: Process ID to check for.