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Diffstat (limited to 'src/core/lib/support/mpscq.h')
| -rw-r--r-- | src/core/lib/support/mpscq.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/core/lib/support/mpscq.h b/src/core/lib/support/mpscq.h new file mode 100644 index 0000000000..30b37a94a1 --- /dev/null +++ b/src/core/lib/support/mpscq.h @@ -0,0 +1,55 @@ +/* + * + * Copyright 2016, 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_CORE_LIB_SUPPORT_MPSCQ_H +#define GRPC_CORE_LIB_SUPPORT_MPSCQ_H + +#include <stddef.h> +#include <grpc/support/atm.h> + +typedef struct gpr_mpscq_node { + gpr_atm next; +} gpr_mpscq_node; + +typedef struct gpr_mpscq { + gpr_atm head; + gpr_mpscq_node *tail; + gpr_mpscq_node stub; +} gpr_mpscq; + +void gpr_mpscq_init(gpr_mpscq *q); +void gpr_mpscq_destroy(gpr_mpscq *q); +void gpr_mpscq_push(gpr_mpscq *q, gpr_mpscq_node *n); +gpr_mpscq_node *gpr_mpscq_pop(gpr_mpscq *q); + +#endif /* GRPC_CORE_LIB_SUPPORT_MPSCQ_H */ |