[IOMultiplexerV2] alpha

[NextIRCd.git] / src / IOHandler / compat / utime.c

diff --git a/src/IOHandler/compat/utime.c b/src/IOHandler/compat/utime.c
new file mode 100644 (file)
index 0000000..193ab53
--- /dev/null
+++ b/src/IOHandler/compat/utime.c
@@ -0,0 +1,84 @@
+/* utime.c - IOMultiplexer
+ * Copyright (C) 2014  Philipp Kreil (pk910)
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License 
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. 
+ */
+#include "../IOHandler_config.h"
+#include "utime.h"
+#ifndef HAVE_USLEEP
+
+#ifdef HAVE_SELECT
+
+#ifdef HAVE_SYS_SELECT_H
+# include <sys/select.h>
+#else
+# include <sys/time.h>
+# include <sys/types.h>
+# include <unistd.h>
+#endif
+
+void usleep_tv(struct timeval tv) {
+       select(0, NULL, NULL, NULL, &tv);
+}
+
+void usleep(long usec)
+{
+       struct timeval tv;
+
+       tv.tv_sec = usec / 1000000;
+       tv.tv_usec = usec % 1000000;
+       usleep_tv(tv);
+}
+
+#elif defined WIN32
+
+/* usleep implementation from FreeSCI */
+
+#include <windows.h>
+
+void usleep_tv(struct timeval tv) {
+       usleep(tv.tv_sec * 1000000 + tv.tv_usec);
+}
+
+void usleep (long usec)
+{
+        LARGE_INTEGER lFrequency;
+        LARGE_INTEGER lEndTime;
+        LARGE_INTEGER lCurTime;
+
+        QueryPerformanceFrequency (&lFrequency);
+        if (lFrequency.QuadPart) {
+                QueryPerformanceCounter (&lEndTime);
+                lEndTime.QuadPart += (LONGLONG) usec *
+                                        lFrequency.QuadPart / 1000000;
+                do {
+                        QueryPerformanceCounter (&lCurTime);
+                        Sleep(0);
+                } while (lCurTime.QuadPart < lEndTime.QuadPart);
+        }
+}
+
+#endif
+
+#else
+#include <sys/time.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+void usleep_tv(struct timeval tv) {
+       usleep(tv.tv_sec * 1000000 + tv.tv_usec);
+}
+
+#endif /* !HAVE_USLEEP */