facf94c74a
(cherry pick from commit 018a96d03f)
Create config_logger, logger and logger_read to house the log
interfaces. Add fake_logger, logd_logger and pmsg_logger to
house the write and read transports. Allows for an easier and
direct path to add new transports to the library.
SideEffects: None, logger benchmark performance unaffected
Bug: 27176738
Bug: 27405083
Change-Id: I01b38637334a5242905c8c89f6ab0a92e2540008
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "config_read.h"
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#include "logger.h"
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LIBLOG_HIDDEN struct listnode __android_log_transport_read =
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{ &__android_log_transport_read, &__android_log_transport_read };
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LIBLOG_HIDDEN struct listnode __android_log_persist_read =
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{ &__android_log_persist_read, &__android_log_persist_read };
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static void __android_log_add_transport(
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struct listnode *list, struct android_log_transport_read *transport) {
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size_t i;
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/* Try to keep one functioning transport for each log buffer id */
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for (i = LOG_ID_MIN; i < LOG_ID_MAX; i++) {
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struct android_log_transport_read *transp;
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if (list_empty(list)) {
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if (!transport->available || ((*transport->available)(i) >= 0)) {
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list_add_tail(list, &transport->node);
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return;
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}
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} else {
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read_transport_for_each(transp, list) {
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if (!transp->available) {
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return;
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}
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if (((*transp->available)(i) < 0) &&
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(!transport->available ||
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((*transport->available)(i) >= 0))) {
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list_add_tail(list, &transport->node);
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return;
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}
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}
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}
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}
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}
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LIBLOG_HIDDEN void __android_log_config_read() {
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#if (FAKE_LOG_DEVICE == 0)
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extern struct android_log_transport_read logdLoggerRead;
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extern struct android_log_transport_read pmsgLoggerRead;
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__android_log_add_transport(&__android_log_transport_read, &logdLoggerRead);
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__android_log_add_transport(&__android_log_persist_read, &pmsgLoggerRead);
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#endif
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}
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