+#include "util.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/* Schedule events to wake up the following poll_block().
+ *
+ * The poll_loop logs the 'where' argument to each function at "debug" level
+ * when an event causes a wakeup. Each of these ways to schedule an event has
+ * a function and a macro wrapper. The macro version automatically supplies
+ * the source code location of the caller. The function version allows the
+ * caller to supply a location explicitly, which is useful if the caller's own
+ * caller would be more useful in log output. See timer_wait_at() for an
+ * example. */
+void poll_fd_wait_at(int fd, HANDLE wevent, short int events, const char *where);
+#ifndef _WIN32
+#define poll_fd_wait(fd, events) poll_fd_wait_at(fd, 0, events, SOURCE_LOCATOR)
+#endif
+#define poll_fd_wait_event(fd, wevent, events) \
+ poll_fd_wait_at(fd, wevent, events, SOURCE_LOCATOR)
+
+void poll_timer_wait_at(long long int msec, const char *where);
+#define poll_timer_wait(msec) poll_timer_wait_at(msec, SOURCE_LOCATOR)