adb: deprecate legacy log service interface

Change-Id: If96019cc13b3d7a4dcd7785c7137e0cbcc622981

adb/Android.mk

@@ -114,8 +114,7 @@ LOCAL_SRC_FILES := \
 	jdwp_service.c \
 	framebuffer_service.c \
 	remount_service.c \
-	usb_linux_client.c \
-	log_service.c
+	usb_linux_client.c
 
 LOCAL_CFLAGS := -O2 -g -DADB_HOST=0 -Wall -Wno-unused-parameter
 LOCAL_CFLAGS += -D_XOPEN_SOURCE -D_GNU_SOURCE

adb/SERVICES.TXT

@@ -198,11 +198,6 @@ localfilesystem:<path>
     Variants of local:<path> that are used to access other Android
     socket namespaces.
 
-log:<name>
-    Opens one of the system logs (/dev/log/<name>) and allows the client
-    to read them directly. Used to implement 'adb logcat'. The stream
-    will be read-only for the client.
-
 framebuffer:
     This service is used to send snapshots of the framebuffer to a client.
     It requires sufficient privileges but works as follow:

adb/adb.h

@@ -324,9 +324,7 @@ typedef enum {
 } BackupOperation;
 int backup_service(BackupOperation operation, char* args);
 void framebuffer_service(int fd, void *cookie);
-void log_service(int fd, void *cookie);
 void remount_service(int fd, void *cookie);
-char * get_log_file_path(const char * log_name);
 #endif
 
 /* packet allocator */

adb/log_service.c

@@ -1,92 +0,0 @@
-/*
- * 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 <log/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);
-}

adb/services.c

@@ -368,8 +368,6 @@ int service_to_fd(const char *name)
         ret = create_service_thread(framebuffer_service, 0);
     } else if (!strncmp(name, "jdwp:", 5)) {
         ret = create_jdwp_connection_fd(atoi(name+5));
-    } else if (!strncmp(name, "log:", 4)) {
-        ret = create_service_thread(log_service, get_log_file_path(name + 4));
     } else if(!HOST && !strncmp(name, "shell:", 6)) {
         if(name[6]) {
             ret = create_subproc_thread(name + 6);