pollset.h

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#ifndef GRPC_INTERNAL_CORE_IOMGR_POLLSET_H
#define GRPC_INTERNAL_CORE_IOMGR_POLLSET_H

#include <grpc/support/port_platform.h>
#include <grpc/support/time.h>

/* A grpc_pollset is a set of file descriptors that a higher level item is
   interested in. For example:
    - a server will typically keep a pollset containing all connected channels,
      so that it can find new calls to service
    - a completion queue might keep a pollset with an entry for each transport
      that is servicing a call that it's tracking */

#ifdef GPR_POSIX_SOCKET
#include "src/core/iomgr/pollset_posix.h"
#endif

#ifdef GPR_WIN32
#include "src/core/iomgr/pollset_windows.h"
#endif


void grpc_pollset_init(grpc_pollset *pollset);
void grpc_pollset_shutdown(grpc_pollset *pollset,
                           void (*shutdown_done)(void *arg),
                           void *shutdown_done_arg);
void grpc_pollset_destroy(grpc_pollset *pollset);


/* Do some work on a pollset.
   May involve invoking asynchronous callbacks, or actually polling file
   descriptors.
   Requires GRPC_POLLSET_MU(pollset) locked.
   May unlock GRPC_POLLSET_MU(pollset) during its execution. */
int grpc_pollset_work(grpc_pollset *pollset, gpr_timespec deadline);

/* Break a pollset out of polling work
   Requires GRPC_POLLSET_MU(pollset) locked. */
void grpc_pollset_kick(grpc_pollset *pollset);

#endif  /* GRPC_INTERNAL_CORE_IOMGR_POLLSET_H */