X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;f=temp_file.cpp;fp=temp_file.cpp;h=6b8165c1541ec97bd6b635fbde9886c31abd406c;hb=fed762f0b70eeb556c4b1bd660beb129099e8068;hp=0000000000000000000000000000000000000000;hpb=90012acc26c4a8210c4bce3dac69a09309cce9f8;p=videolink.git

diff --git a/temp_file.cpp b/temp_file.cpp
new file mode 100644
index 0000000..6b8165c
--- /dev/null
+++ b/temp_file.cpp
@@ -0,0 +1,53 @@
+// Copyright 2005 Ben Hutchings <ben@decadentplace.org.uk>.
+// See the file "COPYING" for licence details.
+
+#include "temp_file.hpp"
+
+#include <cassert>
+#include <cerrno>
+#include <cstdlib>
+#include <cstring>
+#include <stdexcept>
+#include <vector>
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <glibmm/fileutils.h>
+
+temp_file::temp_file(const std::string & base_name)
+{
+    fd_ = Glib::file_open_tmp(name_, base_name);
+    assert(fd_ >= 0);
+
+    // Workaround bug in glibc <2.2 that may cause the file to be
+    // created with lax permissions.
+#   ifdef __GLIBC__
+#   if !__GLIBC_PREREQ(2, 2)
+    if (fchmod(fd_, S_IREAD|S_IWRITE) != 0 || ftruncate(fd_, 0) != 0)
+    {
+	close(fd_);
+	throw std::runtime_error(std::strerror(errno));
+    }
+#   endif
+#   endif
+}
+
+temp_file::~temp_file()
+{
+    close();
+
+    // Don't assert that this is successful.  The file could have
+    // been removed by another process.
+    unlink(name_.c_str());
+}
+
+void temp_file::close()
+{
+    if (fd_ >= 0)
+    {
+	int result = ::close(fd_);
+	assert(result == 0);
+	fd_ = -1;
+    }
+}