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Diffstat (limited to 'include/grpc/support/cancellable_platform.h')
| -rw-r--r-- | include/grpc/support/cancellable_platform.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/grpc/support/cancellable_platform.h b/include/grpc/support/cancellable_platform.h new file mode 100644 index 0000000000..d67302dd90 --- /dev/null +++ b/include/grpc/support/cancellable_platform.h @@ -0,0 +1,56 @@ +/* + * + * Copyright 2014, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#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__ */ |