cancellable_platform.h

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#ifndef GRPC_SUPPORT_CANCELLABLE_PLATFORM_H
#define GRPC_SUPPORT_CANCELLABLE_PLATFORM_H

#include <grpc/support/atm.h>
#include <grpc/support/sync.h>

struct gpr_cancellable_list_ {
  /* a doubly-linked list on cancellable's waiters queue */
  struct gpr_cancellable_list_ *next;
  struct gpr_cancellable_list_ *prev;
  /* The following two fields are arguments to gpr_cv_cancellable_wait() */
  gpr_mu *mu;
  gpr_cv *cv;
};

/* Internal definition of gpr_cancellable. */
typedef struct {
  gpr_mu mu; /* protects waiters and modifications to cancelled */
  gpr_atm cancelled;
  struct gpr_cancellable_list_ waiters;
} gpr_cancellable;

#endif  /* GRPC_SUPPORT_CANCELLABLE_PLATFORM_H */