2009-03-04 04:28:35 +01:00
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/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <time.h>
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#include <stdio.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/uio.h>
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#include <arpa/inet.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <fcntl.h>
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#include <cutils/logger.h>
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#include "logd.h"
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#include <pthread.h>
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#define LOG_BUF_SIZE 1024
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typedef enum {
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2008-12-12 23:24:44 +01:00
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LOG_ID_NONE = 0,
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LOG_ID_MAIN,
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2009-03-04 04:28:35 +01:00
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LOG_ID_RADIO,
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LOG_ID_MAX
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} log_id_t;
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2008-12-12 23:24:44 +01:00
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/* logger handles writing to object, pointed by log channel id */
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typedef int (*logger_function_t)(log_id_t log_id, struct iovec *vec);
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typedef struct {
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logger_function_t logger;
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int fd;
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const char *path;
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} log_channel_t;
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static int __write_to_log_init(log_id_t log_id, struct iovec *vec);
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static int __write_to_log_null(log_id_t log_id, struct iovec *vec);
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2009-03-04 04:28:35 +01:00
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static pthread_mutex_t log_init_lock = PTHREAD_MUTEX_INITIALIZER;
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2009-12-01 02:09:45 +01:00
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static log_channel_t log_channels[LOG_ID_MAX] = {
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2008-12-12 23:24:44 +01:00
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{ __write_to_log_null, -1, NULL },
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{ __write_to_log_init, -1, "/dev/"LOGGER_LOG_MAIN },
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{ __write_to_log_init, -1, "/dev/"LOGGER_LOG_RADIO }
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};
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2009-03-04 04:28:35 +01:00
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2008-12-12 23:24:44 +01:00
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static int __write_to_log_null(log_id_t log_id, struct iovec *vec)
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2009-03-04 04:28:35 +01:00
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{
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2008-12-12 23:24:44 +01:00
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/*
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* ALTERED behaviour from previous version
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* always returns successful result
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*/
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int i = 0;
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size_t res = 0;
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for ( ; i < 3; ++i) {
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res += vec[i].iov_len;
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}
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return (int)res;
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2009-03-04 04:28:35 +01:00
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}
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2008-12-12 23:24:44 +01:00
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/*
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* it's supposed, that log_id contains valid id always.
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* this check must be performed in higher level functions
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*/
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2009-03-04 04:28:35 +01:00
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static int __write_to_log_kernel(log_id_t log_id, struct iovec *vec)
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{
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ssize_t ret;
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do {
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2008-12-12 23:24:44 +01:00
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ret = writev(log_channels[log_id].fd, vec, 3);
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} while ((ret < 0) && (errno == EINTR));
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2009-03-04 04:28:35 +01:00
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return ret;
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}
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static int __write_to_log_init(log_id_t log_id, struct iovec *vec)
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{
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2008-12-12 23:24:44 +01:00
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if ((LOG_ID_NONE < log_id) && (log_id < LOG_ID_MAX)) {
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pthread_mutex_lock(&log_init_lock);
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2009-03-04 04:28:35 +01:00
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2008-12-12 23:24:44 +01:00
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int fd = open(log_channels[log_id].path, O_WRONLY);
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2009-03-04 04:28:35 +01:00
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2008-12-12 23:24:44 +01:00
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log_channels[log_id].logger =
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(fd < 0) ? __write_to_log_null : __write_to_log_kernel;
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2009-12-01 02:09:45 +01:00
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log_channels[log_id].fd = fd;
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2009-03-04 04:28:35 +01:00
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2009-12-03 02:26:22 +01:00
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log_channels[log_id].fd = fd;
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2008-12-12 23:24:44 +01:00
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pthread_mutex_unlock(&log_init_lock);
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2009-03-04 04:28:35 +01:00
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2008-12-12 23:24:44 +01:00
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return log_channels[log_id].logger(log_id, vec);
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}
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2009-03-04 04:28:35 +01:00
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2008-12-12 23:24:44 +01:00
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/* log_id is invalid */
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return -1;
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2009-03-04 04:28:35 +01:00
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}
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static int __android_log_write(int prio, const char *tag, const char *msg)
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{
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struct iovec vec[3];
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log_id_t log_id = LOG_ID_MAIN;
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2008-12-12 23:24:44 +01:00
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if (tag == NULL)
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2009-03-04 04:28:35 +01:00
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tag = "";
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if (!strcmp(tag, "HTC_RIL"))
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log_id = LOG_ID_RADIO;
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vec[0].iov_base = (unsigned char *) &prio;
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vec[0].iov_len = 1;
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vec[1].iov_base = (void *) tag;
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vec[1].iov_len = strlen(tag) + 1;
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vec[2].iov_base = (void *) msg;
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vec[2].iov_len = strlen(msg) + 1;
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2008-12-12 23:24:44 +01:00
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return log_channels[log_id].logger(log_id, vec);
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2009-03-04 04:28:35 +01:00
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}
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2009-07-08 14:22:41 +02:00
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int __libc_android_log_vprint(int prio, const char *tag, const char *fmt,
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va_list ap)
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2009-03-04 04:28:35 +01:00
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{
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2009-07-08 14:22:41 +02:00
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char buf[LOG_BUF_SIZE];
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2009-03-04 04:28:35 +01:00
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vsnprintf(buf, LOG_BUF_SIZE, fmt, ap);
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return __android_log_write(prio, tag, buf);
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}
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int __libc_android_log_print(int prio, const char *tag, const char *fmt, ...)
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{
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va_list ap;
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2009-07-08 14:22:41 +02:00
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char buf[LOG_BUF_SIZE];
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2009-03-04 04:28:35 +01:00
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va_start(ap, fmt);
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vsnprintf(buf, LOG_BUF_SIZE, fmt, ap);
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va_end(ap);
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return __android_log_write(prio, tag, buf);
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}
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int __libc_android_log_assert(const char *cond, const char *tag,
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const char *fmt, ...)
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{
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va_list ap;
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char buf[LOG_BUF_SIZE];
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va_start(ap, fmt);
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vsnprintf(buf, LOG_BUF_SIZE, fmt, ap);
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va_end(ap);
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__android_log_write(ANDROID_LOG_FATAL, tag, buf);
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exit(1);
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return -1;
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}
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