X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=ccan%2Fio%2Fbackend.h;h=e2090ff14068ebe0a34317941bb8efc6f7cb9a0a;hp=48e160dad3991a58b0bd566d9e39fb758854e159;hb=12ab811533406e22b78ce8b227474f1056375ae4;hpb=d0458a433876acc01b48f74c1c3b966bbc29de57

diff --git a/ccan/io/backend.h b/ccan/io/backend.h
index 48e160da..e2090ff1 100644
--- a/ccan/io/backend.h
+++ b/ccan/io/backend.h
@@ -3,6 +3,17 @@
 #define CCAN_IO_BACKEND_H
 #include <stdbool.h>
 #include <ccan/timer/timer.h>
+#include <poll.h>
+
+/* A setting for actions to always run (eg. zero-length reads). */
+#define POLLALWAYS (((POLLIN|POLLOUT) + 1) & ~((POLLIN|POLLOUT)))
+
+struct io_alloc {
+	void *(*alloc)(size_t size);
+	void *(*realloc)(void *ptr, size_t size);
+	void (*free)(void *ptr);
+};
+extern struct io_alloc io_alloc;
 
 struct fd {
 	int fd;
@@ -47,6 +58,34 @@ static inline bool timeout_active(const struct io_conn *conn)
 
 extern void *io_loop_return;
 
+#ifdef DEBUG
+extern struct io_conn *current;
+static inline void set_current(struct io_conn *conn)
+{
+	current = conn;
+}
+static inline bool doing_debug_on(struct io_conn *conn)
+{
+	return io_debug_conn && io_debug_conn(conn);
+}
+static inline bool doing_debug(void)
+{
+	return io_debug_conn;
+}
+#else
+static inline void set_current(struct io_conn *conn)
+{
+}
+static inline bool doing_debug_on(struct io_conn *conn)
+{
+	return false;
+}
+static inline bool doing_debug(void)
+{
+	return false;
+}
+#endif
+
 bool add_listener(struct io_listener *l);
 bool add_conn(struct io_conn *c);
 bool add_duplex(struct io_conn *c);
@@ -54,6 +93,8 @@ void del_listener(struct io_listener *l);
 void backend_plan_changed(struct io_conn *conn);
 void backend_add_timeout(struct io_conn *conn, struct timespec ts);
 void backend_del_timeout(struct io_conn *conn);
+void backend_del_conn(struct io_conn *conn);
 
 void io_ready(struct io_conn *conn);
+void *do_io_loop(struct io_conn **ready);
 #endif /* CCAN_IO_BACKEND_H */