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/*
*
* 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 <grpc/grpc.h>
#include "src/core/channel/channel_args.h"
#include "src/core/support/string.h"
#include <grpc/support/alloc.h>
#include <grpc/support/string_util.h>
#include <string.h>
static grpc_arg copy_arg(const grpc_arg *src) {
grpc_arg dst;
dst.type = src->type;
dst.key = gpr_strdup(src->key);
switch (dst.type) {
case GRPC_ARG_STRING:
dst.value.string = gpr_strdup(src->value.string);
break;
case GRPC_ARG_INTEGER:
dst.value.integer = src->value.integer;
break;
case GRPC_ARG_POINTER:
dst.value.pointer = src->value.pointer;
dst.value.pointer.p = src->value.pointer.copy
? src->value.pointer.copy(src->value.pointer.p)
: src->value.pointer.p;
break;
}
return dst;
}
grpc_channel_args *grpc_channel_args_copy_and_add(const grpc_channel_args *src,
const grpc_arg *to_add,
size_t num_to_add) {
grpc_channel_args *dst = gpr_malloc(sizeof(grpc_channel_args));
size_t i;
size_t src_num_args = (src == NULL) ? 0 : src->num_args;
if (!src && !to_add) {
dst->num_args = 0;
dst->args = NULL;
return dst;
}
dst->num_args = src_num_args + num_to_add;
dst->args = gpr_malloc(sizeof(grpc_arg) * dst->num_args);
for (i = 0; i < src_num_args; i++) {
dst->args[i] = copy_arg(&src->args[i]);
}
for (i = 0; i < num_to_add; i++) {
dst->args[i + src_num_args] = copy_arg(&to_add[i]);
}
return dst;
}
grpc_channel_args *grpc_channel_args_copy(const grpc_channel_args *src) {
return grpc_channel_args_copy_and_add(src, NULL, 0);
}
grpc_channel_args *grpc_channel_args_merge(const grpc_channel_args *a,
const grpc_channel_args *b) {
return grpc_channel_args_copy_and_add(a, b->args, b->num_args);
}
void grpc_channel_args_destroy(grpc_channel_args *a) {
size_t i;
for (i = 0; i < a->num_args; i++) {
switch (a->args[i].type) {
case GRPC_ARG_STRING:
gpr_free(a->args[i].value.string);
break;
case GRPC_ARG_INTEGER:
break;
case GRPC_ARG_POINTER:
if (a->args[i].value.pointer.destroy) {
a->args[i].value.pointer.destroy(a->args[i].value.pointer.p);
}
break;
}
gpr_free(a->args[i].key);
}
gpr_free(a->args);
gpr_free(a);
}
int grpc_channel_args_is_census_enabled(const grpc_channel_args *a) {
unsigned i;
if (a == NULL) return 0;
for (i = 0; i < a->num_args; i++) {
if (0 == strcmp(a->args[i].key, GRPC_ARG_ENABLE_CENSUS)) {
return a->args[i].value.integer != 0;
}
}
return 0;
}
grpc_compression_level grpc_channel_args_get_compression_level(
const grpc_channel_args *a) {
size_t i;
if (a) {
for (i = 0; a && i < a->num_args; ++i) {
if (a->args[i].type == GRPC_ARG_INTEGER &&
!strcmp(GRPC_COMPRESSION_LEVEL_ARG, a->args[i].key)) {
return a->args[i].value.integer;
break;
}
}
}
return GRPC_COMPRESS_LEVEL_NONE;
}
void grpc_channel_args_set_compression_level(grpc_channel_args **a,
grpc_compression_level level) {
grpc_arg tmp;
tmp.type = GRPC_ARG_INTEGER;
tmp.key = GRPC_COMPRESSION_LEVEL_ARG;
tmp.value.integer = level;
*a = grpc_channel_args_copy_and_add(*a, &tmp, 1);
}
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