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- /*
- * Copyright (C) 2007 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 <stdlib.h>
- #include <stdio.h>
- #include <unistd.h>
- #include <string.h>
- #include <fcntl.h>
- #include <errno.h>
- #include <sys/socket.h>
- #include <cutils/logger.h>
- #include "sysdeps.h"
- #include "adb.h"
- #define LOG_FILE_DIR "/dev/log/"
- void write_log_entry(int fd, struct logger_entry *buf);
- void log_service(int fd, void *cookie)
- {
- /* get the name of the log filepath to read */
- char * log_filepath = cookie;
- /* open the log file. */
- int logfd = unix_open(log_filepath, O_RDONLY);
- if (logfd < 0) {
- goto done;
- }
- // temp buffer to read the entries
- unsigned char buf[LOGGER_ENTRY_MAX_LEN + 1] __attribute__((aligned(4)));
- struct logger_entry *entry = (struct logger_entry *) buf;
- while (1) {
- int ret;
- ret = unix_read(logfd, entry, LOGGER_ENTRY_MAX_LEN);
- if (ret < 0) {
- if (errno == EINTR || errno == EAGAIN)
- continue;
- // perror("logcat read");
- goto done;
- }
- else if (!ret) {
- // fprintf(stderr, "read: Unexpected EOF!\n");
- goto done;
- }
- /* NOTE: driver guarantees we read exactly one full entry */
- entry->msg[entry->len] = '\0';
- write_log_entry(fd, entry);
- }
- done:
- unix_close(fd);
- free(log_filepath);
- }
- /* returns the full path to the log file in a newly allocated string */
- char * get_log_file_path(const char * log_name) {
- char *log_device = malloc(strlen(LOG_FILE_DIR) + strlen(log_name) + 1);
- strcpy(log_device, LOG_FILE_DIR);
- strcat(log_device, log_name);
- return log_device;
- }
- /* prints one log entry into the file descriptor fd */
- void write_log_entry(int fd, struct logger_entry *buf)
- {
- size_t size = sizeof(struct logger_entry) + buf->len;
- writex(fd, buf, size);
- }
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