e249097f6d
Slowly try to decouple property_service.cpp from the rest of init.
Test: Boot bullhead
Change-Id: I267ae0b057bca0bf657b97cb8bfbb18199282729
(cherry picked from commit ccf23537ee)
116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
/*
|
|
* Copyright (C) 2010 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 <errno.h>
|
|
#include <fcntl.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/types.h>
|
|
#include <linux/keychord.h>
|
|
#include <unistd.h>
|
|
|
|
#include <android-base/properties.h>
|
|
|
|
#include "init.h"
|
|
#include "log.h"
|
|
#include "service.h"
|
|
|
|
static struct input_keychord *keychords = 0;
|
|
static int keychords_count = 0;
|
|
static int keychords_length = 0;
|
|
static int keychord_fd = -1;
|
|
|
|
void add_service_keycodes(Service* svc)
|
|
{
|
|
struct input_keychord *keychord;
|
|
size_t i, size;
|
|
|
|
if (!svc->keycodes().empty()) {
|
|
/* add a new keychord to the list */
|
|
size = sizeof(*keychord) + svc->keycodes().size() * sizeof(keychord->keycodes[0]);
|
|
keychords = (input_keychord*) realloc(keychords, keychords_length + size);
|
|
if (!keychords) {
|
|
PLOG(ERROR) << "could not allocate keychords";
|
|
keychords_length = 0;
|
|
keychords_count = 0;
|
|
return;
|
|
}
|
|
|
|
keychord = (struct input_keychord *)((char *)keychords + keychords_length);
|
|
keychord->version = KEYCHORD_VERSION;
|
|
keychord->id = keychords_count + 1;
|
|
keychord->count = svc->keycodes().size();
|
|
svc->set_keychord_id(keychord->id);
|
|
|
|
for (i = 0; i < svc->keycodes().size(); i++) {
|
|
keychord->keycodes[i] = svc->keycodes()[i];
|
|
}
|
|
keychords_count++;
|
|
keychords_length += size;
|
|
}
|
|
}
|
|
|
|
static void handle_keychord() {
|
|
int ret;
|
|
__u16 id;
|
|
|
|
ret = read(keychord_fd, &id, sizeof(id));
|
|
if (ret != sizeof(id)) {
|
|
PLOG(ERROR) << "could not read keychord id";
|
|
return;
|
|
}
|
|
|
|
// Only handle keychords if adb is enabled.
|
|
std::string adb_enabled = android::base::GetProperty("init.svc.adbd", "");
|
|
if (adb_enabled == "running") {
|
|
Service* svc = ServiceManager::GetInstance().FindServiceByKeychord(id);
|
|
if (svc) {
|
|
LOG(INFO) << "Starting service " << svc->name() << " from keychord " << id;
|
|
svc->Start();
|
|
} else {
|
|
LOG(ERROR) << "Service for keychord " << id << " not found";
|
|
}
|
|
} else {
|
|
LOG(WARNING) << "Not starting service for keychord " << id << " because ADB is disabled";
|
|
}
|
|
}
|
|
|
|
void keychord_init() {
|
|
ServiceManager::GetInstance().ForEachService(add_service_keycodes);
|
|
|
|
// Nothing to do if no services require keychords.
|
|
if (!keychords) {
|
|
return;
|
|
}
|
|
|
|
keychord_fd = TEMP_FAILURE_RETRY(open("/dev/keychord", O_RDWR | O_CLOEXEC));
|
|
if (keychord_fd == -1) {
|
|
PLOG(ERROR) << "could not open /dev/keychord";
|
|
return;
|
|
}
|
|
|
|
int ret = write(keychord_fd, keychords, keychords_length);
|
|
if (ret != keychords_length) {
|
|
PLOG(ERROR) << "could not configure /dev/keychord " << ret;
|
|
close(keychord_fd);
|
|
}
|
|
|
|
free(keychords);
|
|
keychords = nullptr;
|
|
|
|
register_epoll_handler(keychord_fd, handle_keychord);
|
|
}
|