1 files changed, 21 insertions, 0 deletions

diff --git a/src/util.cc b/src/util.cc
new file mode 100644
index 0000000..afb2641
--- a/dev/null
+++ b/src/util.cc
@@ -0,0 +1,21 @@
+#include <unistd.h>
+#include <fstream>
+#include <stdexcept>
+using namespace std;
+#include "util.h"
+
+void pid_file::set(const string& f,bool u) {
+    ofstream of(f.c_str(),ios::trunc);
+    if(!of)
+        throw runtime_error(string(__PRETTY_FUNCTION__)+": failed to open file for writing pid");
+    of << getpid() << endl;
+    of.close();
+    file_name = f;
+    unlink_pid = u;
+}
+void pid_file::unlink() {
+    if(!unlink_pid)
+        return;
+    ::unlink(file_name.c_str());
+}
+