#include <errno.h>
#include <stdlib.h>
#include <assert.h>
-#include <poll.h>
#include <unistd.h>
#include <fcntl.h>
return true;
}
+/* Always done: call the next thing. */
+static int do_always(int fd, struct io_plan *plan)
+{
+ return 1;
+}
+
+struct io_plan io_always_(struct io_plan (*cb)(struct io_conn *, void *),
+ void *arg)
+{
+ struct io_plan plan;
+
+ assert(cb);
+ plan.io = do_always;
+ plan.next = cb;
+ plan.next_arg = arg;
+ plan.pollflag = POLLALWAYS;
+
+ return plan;
+}
+
/* Returns true if we're finished. */
static int do_write(int fd, struct io_plan *plan)
{
struct io_plan plan;
assert(cb);
+
+ if (len == 0)
+ return io_always_(cb, arg);
+
plan.u1.const_vp = data;
plan.u2.s = len;
plan.io = do_write;
struct io_plan plan;
assert(cb);
+
+ if (len == 0)
+ return io_always_(cb, arg);
+
plan.u1.cp = data;
plan.u2.s = len;
plan.io = do_read;
plan.next = cb;
plan.next_arg = arg;
+
plan.pollflag = POLLIN;
return plan;
struct io_plan plan;
assert(cb);
+
+ if (*len == 0)
+ return io_always_(cb, arg);
+
plan.u1.cp = data;
plan.u2.vp = len;
plan.io = do_read_partial;
struct io_plan plan;
assert(cb);
+
+ if (*len == 0)
+ return io_always_(cb, arg);
+
plan.u1.const_vp = data;
plan.u2.vp = len;
plan.io = do_write_partial;