| /* |
| * Copyright (C) 2014-2020 Intel Corporation |
| * |
| * 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. |
| */ |
| |
| #define LOG_TAG "Trace" |
| |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <limits.h> |
| #include <pthread.h> |
| #include <stdbool.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/types.h> |
| |
| #include "Trace.h" |
| #include "iutils/CameraLog.h" |
| |
| namespace icamera { |
| |
| std::atomic<int> atrace_is_ready(0); |
| uint64_t atrace_enabled_tags = ATRACE_TAG_NOT_READY; |
| int atrace_marker_fd = -1; |
| static pthread_once_t atrace_once_control = PTHREAD_ONCE_INIT; |
| |
| static void atrace_init_once() |
| { |
| atrace_marker_fd = open("/sys/kernel/debug/tracing/trace_marker", O_WRONLY); |
| if (atrace_marker_fd == -1) { |
| ATRACE_LOGE("atrace %s open error: %s!\n", __func__, strerror(errno)); |
| return; |
| } |
| atrace_enabled_tags = ATRACE_TAG_ALWAYS; |
| atrace_is_ready = 1; |
| } |
| |
| void atrace_setup() |
| { |
| pthread_once(&atrace_once_control, atrace_init_once); |
| } |
| |
| } //namespace icamera |