platform_system_core/liblog/config_read.c

63 lines
2.2 KiB
C

/*
* Copyright (C) 2016 The Android Open Source Project
*
* 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 "config_read.h"
#include "logger.h"
LIBLOG_HIDDEN struct listnode __android_log_transport_read =
{ &__android_log_transport_read, &__android_log_transport_read };
LIBLOG_HIDDEN struct listnode __android_log_persist_read =
{ &__android_log_persist_read, &__android_log_persist_read };
static void __android_log_add_transport(
struct listnode *list, struct android_log_transport_read *transport) {
size_t i;
/* Try to keep one functioning transport for each log buffer id */
for (i = LOG_ID_MIN; i < LOG_ID_MAX; i++) {
struct android_log_transport_read *transp;
if (list_empty(list)) {
if (!transport->available || ((*transport->available)(i) >= 0)) {
list_add_tail(list, &transport->node);
return;
}
} else {
read_transport_for_each(transp, list) {
if (!transp->available) {
return;
}
if (((*transp->available)(i) < 0) &&
(!transport->available ||
((*transport->available)(i) >= 0))) {
list_add_tail(list, &transport->node);
return;
}
}
}
}
}
LIBLOG_HIDDEN void __android_log_config_read() {
#if (FAKE_LOG_DEVICE == 0)
extern struct android_log_transport_read logdLoggerRead;
extern struct android_log_transport_read pmsgLoggerRead;
__android_log_add_transport(&__android_log_transport_read, &logdLoggerRead);
__android_log_add_transport(&__android_log_persist_read, &pmsgLoggerRead);
#endif
}