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/* Copyright 2015 greenbytes GmbH (https://www.greenbytes.de)
*
* 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 <assert.h>
#include <stddef.h>
#include <apr_hash.h>
#include <apr_strings.h>
#include <httpd.h>
#include <http_log.h>
#include "h2_private.h"
#include "h2_stream.h"
#include "h2_stream_set.h"
struct h2_stream_set {
apr_hash_t *hash;
};
static unsigned int stream_hash(const char *key, apr_ssize_t *klen)
{
return (unsigned int)(*((int*)key));
}
h2_stream_set *h2_stream_set_create(apr_pool_t *pool, int max)
{
h2_stream_set *sp = apr_pcalloc(pool, sizeof(h2_stream_set));
sp->hash = apr_hash_make_custom(pool, stream_hash);
return sp;
}
void h2_stream_set_destroy(h2_stream_set *sp)
{
(void)sp;
}
h2_stream *h2_stream_set_get(h2_stream_set *sp, int stream_id)
{
return apr_hash_get(sp->hash, &stream_id, sizeof(stream_id));
}
void h2_stream_set_add(h2_stream_set *sp, h2_stream *stream)
{
apr_hash_set(sp->hash, &stream->id, sizeof(stream->id), stream);
}
void h2_stream_set_remove(h2_stream_set *sp, int stream_id)
{
apr_hash_set(sp->hash, &stream_id, sizeof(stream_id), NULL);
}
int h2_stream_set_is_empty(h2_stream_set *sp)
{
return apr_hash_count(sp->hash) == 0;
}
apr_size_t h2_stream_set_size(h2_stream_set *sp)
{
return apr_hash_count(sp->hash);
}
typedef struct {
h2_stream_set_iter_fn *iter;
void *ctx;
} iter_ctx;
static int hash_iter(void *ctx, const void *key, apr_ssize_t klen,
const void *val)
{
iter_ctx *ictx = ctx;
return ictx->iter(ictx->ctx, (h2_stream*)val);
}
void h2_stream_set_iter(h2_stream_set *sp,
h2_stream_set_iter_fn *iter, void *ctx)
{
iter_ctx ictx;
ictx.iter = iter;
ictx.ctx = ctx;
apr_hash_do(hash_iter, &ictx, sp->hash);
}
static int unsubmitted_iter(void *ctx, h2_stream *stream)
{
if (h2_stream_needs_submit(stream)) {
*((int *)ctx) = 1;
return 0;
}
return 1;
}
int h2_stream_set_has_unsubmitted(h2_stream_set *sp)
{
int has_unsubmitted = 0;
h2_stream_set_iter(sp, unsubmitted_iter, &has_unsubmitted);
return has_unsubmitted;
}
static int input_open_iter(void *ctx, h2_stream *stream)
{
if (h2_stream_input_is_open(stream)) {
*((int *)ctx) = 1;
return 0;
}
return 1;
}
int h2_stream_set_has_open_input(h2_stream_set *sp)
{
int has_input_open = 0;
h2_stream_set_iter(sp, input_open_iter, &has_input_open);
return has_input_open;
}
static int suspended_iter(void *ctx, h2_stream *stream)
{
if (h2_stream_is_suspended(stream)) {
*((int *)ctx) = 1;
return 0;
}
return 1;
}
int h2_stream_set_has_suspended(h2_stream_set *sp)
{
int has_suspended = 0;
h2_stream_set_iter(sp, suspended_iter, &has_suspended);
return has_suspended;
}
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