93 lines
2.4 KiB
C
Executable File
93 lines
2.4 KiB
C
Executable File
/*
|
|
* 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);
|
|
}
|