diff options
Diffstat (limited to 'third_party/grpc/src/core/transport/chttp2/incoming_metadata.c')
-rw-r--r-- | third_party/grpc/src/core/transport/chttp2/incoming_metadata.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/third_party/grpc/src/core/transport/chttp2/incoming_metadata.c b/third_party/grpc/src/core/transport/chttp2/incoming_metadata.c new file mode 100644 index 0000000000..315bc2faa1 --- /dev/null +++ b/third_party/grpc/src/core/transport/chttp2/incoming_metadata.c @@ -0,0 +1,96 @@ +/* + * + * Copyright 2015, 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. + * + */ + +#include "src/core/transport/chttp2/incoming_metadata.h" + +#include <string.h> + +#include "src/core/transport/chttp2/internal.h" + +#include <grpc/support/alloc.h> +#include <grpc/support/log.h> + +void grpc_chttp2_incoming_metadata_buffer_init( + grpc_chttp2_incoming_metadata_buffer *buffer) { + buffer->deadline = gpr_inf_future(GPR_CLOCK_REALTIME); +} + +void grpc_chttp2_incoming_metadata_buffer_destroy( + grpc_chttp2_incoming_metadata_buffer *buffer) { + size_t i; + if (!buffer->published) { + for (i = 0; i < buffer->count; i++) { + GRPC_MDELEM_UNREF(buffer->elems[i].md); + } + } + gpr_free(buffer->elems); +} + +void grpc_chttp2_incoming_metadata_buffer_add( + grpc_chttp2_incoming_metadata_buffer *buffer, grpc_mdelem *elem) { + GPR_ASSERT(!buffer->published); + if (buffer->capacity == buffer->count) { + buffer->capacity = GPR_MAX(8, 2 * buffer->capacity); + buffer->elems = + gpr_realloc(buffer->elems, sizeof(*buffer->elems) * buffer->capacity); + } + buffer->elems[buffer->count++].md = elem; +} + +void grpc_chttp2_incoming_metadata_buffer_set_deadline( + grpc_chttp2_incoming_metadata_buffer *buffer, gpr_timespec deadline) { + GPR_ASSERT(!buffer->published); + buffer->deadline = deadline; +} + +void grpc_chttp2_incoming_metadata_buffer_publish( + grpc_chttp2_incoming_metadata_buffer *buffer, grpc_metadata_batch *batch) { + GPR_ASSERT(!buffer->published); + buffer->published = 1; + if (buffer->count > 0) { + size_t i; + for (i = 1; i < buffer->count; i++) { + buffer->elems[i].prev = &buffer->elems[i - 1]; + } + for (i = 0; i < buffer->count - 1; i++) { + buffer->elems[i].next = &buffer->elems[i + 1]; + } + buffer->elems[0].prev = NULL; + buffer->elems[buffer->count - 1].next = NULL; + batch->list.head = &buffer->elems[0]; + batch->list.tail = &buffer->elems[buffer->count - 1]; + } else { + batch->list.head = batch->list.tail = NULL; + } + batch->deadline = buffer->deadline; +} |