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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <ruby/ruby.h>
#include "rb_channel_args.h"
#include "rb_grpc_imports.generated.h"
#include <grpc/grpc.h>
#include "rb_grpc.h"
static rb_data_type_t grpc_rb_channel_args_data_type = {
"grpc_channel_args",
{GRPC_RB_GC_NOT_MARKED,
GRPC_RB_GC_DONT_FREE,
GRPC_RB_MEMSIZE_UNAVAILABLE,
{NULL, NULL}},
NULL,
NULL,
#ifdef RUBY_TYPED_FREE_IMMEDIATELY
RUBY_TYPED_FREE_IMMEDIATELY
#endif
};
/* A callback the processes the hash key values in channel_args hash */
static int grpc_rb_channel_create_in_process_add_args_hash_cb(VALUE key,
VALUE val,
VALUE args_obj) {
const char* the_key;
grpc_channel_args* args;
switch (TYPE(key)) {
case T_STRING:
the_key = StringValuePtr(key);
break;
case T_SYMBOL:
the_key = rb_id2name(SYM2ID(key));
break;
default:
rb_raise(rb_eTypeError, "bad chan arg: got <%s>, want <String|Symbol>",
rb_obj_classname(key));
return ST_STOP;
}
TypedData_Get_Struct(args_obj, grpc_channel_args,
&grpc_rb_channel_args_data_type, args);
if (args->num_args <= 0) {
rb_raise(rb_eRuntimeError, "hash_cb bug: num_args is %lu for key:%s",
args->num_args, StringValueCStr(key));
return ST_STOP;
}
args->args[args->num_args - 1].key = (char*)the_key;
switch (TYPE(val)) {
case T_SYMBOL:
args->args[args->num_args - 1].type = GRPC_ARG_STRING;
args->args[args->num_args - 1].value.string =
(char*)rb_id2name(SYM2ID(val));
--args->num_args;
return ST_CONTINUE;
case T_STRING:
args->args[args->num_args - 1].type = GRPC_ARG_STRING;
args->args[args->num_args - 1].value.string = StringValueCStr(val);
--args->num_args;
return ST_CONTINUE;
case T_FIXNUM:
args->args[args->num_args - 1].type = GRPC_ARG_INTEGER;
args->args[args->num_args - 1].value.integer = NUM2INT(val);
--args->num_args;
return ST_CONTINUE;
default:
rb_raise(rb_eTypeError, "%s: bad value: got <%s>, want <String|Fixnum>",
StringValueCStr(key), rb_obj_classname(val));
return ST_STOP;
}
rb_raise(rb_eRuntimeError, "impl bug: hash_cb reached to far while on key:%s",
StringValueCStr(key));
return ST_STOP;
}
/* channel_convert_params allows the call to
grpc_rb_hash_convert_to_channel_args to be made within an rb_protect
exception-handler. This allows any allocated memory to be freed before
propagating any exception that occurs */
typedef struct channel_convert_params {
VALUE src_hash;
grpc_channel_args* dst;
} channel_convert_params;
static VALUE grpc_rb_hash_convert_to_channel_args0(VALUE as_value) {
ID id_size = rb_intern("size");
VALUE grpc_rb_cChannelArgs = rb_define_class("TmpChannelArgs", rb_cObject);
channel_convert_params* params = (channel_convert_params*)as_value;
size_t num_args = 0;
if (!NIL_P(params->src_hash) && TYPE(params->src_hash) != T_HASH) {
rb_raise(rb_eTypeError, "bad channel args: got:<%s> want: a hash or nil",
rb_obj_classname(params->src_hash));
return Qnil;
}
if (TYPE(params->src_hash) == T_HASH) {
num_args = NUM2INT(rb_funcall(params->src_hash, id_size, 0));
params->dst->num_args = num_args;
params->dst->args = ALLOC_N(grpc_arg, num_args);
MEMZERO(params->dst->args, grpc_arg, num_args);
rb_hash_foreach(
params->src_hash, grpc_rb_channel_create_in_process_add_args_hash_cb,
TypedData_Wrap_Struct(grpc_rb_cChannelArgs,
&grpc_rb_channel_args_data_type, params->dst));
/* reset num_args as grpc_rb_channel_create_in_process_add_args_hash_cb
* decrements it during has processing */
params->dst->num_args = num_args;
}
return Qnil;
}
void grpc_rb_hash_convert_to_channel_args(VALUE src_hash,
grpc_channel_args* dst) {
channel_convert_params params;
int status = 0;
/* Make a protected call to grpc_rb_hash_convert_channel_args */
params.src_hash = src_hash;
params.dst = dst;
rb_protect(grpc_rb_hash_convert_to_channel_args0, (VALUE)¶ms, &status);
if (status != 0) {
if (dst->args != NULL) {
/* Free any allocated memory before propagating the error */
xfree(dst->args);
}
rb_jump_tag(status);
}
}
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