1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "devmgr_service_full.h"
17 #include "devhost_service.h"
18 #include "devhost_service_clnt.h"
19 #include "devhost_service_proxy.h"
20 #include "device_token_clnt.h"
21 #include "hdf_device_token.h"
22 #include "hdf_driver_installer.h"
23 #include "hdf_log.h"
24 #include "hdf_map.h"
25 #include "hdf_message_looper.h"
26 #include "osal_message.h"
27
28 #define HDF_LOG_TAG devmgr_service_full
29 #define INVALID_PID (-1)
30
31 static Map g_hostMap = {0};
32 #define HOST_INIT_DIE_NUM 1
33 #define HOST_MAX_DIE_NUM 3
34
CleanupDiedHostResources(struct DevHostServiceClnt * hostClnt)35 static void CleanupDiedHostResources(struct DevHostServiceClnt *hostClnt)
36 {
37 hostClnt->hostPid = INVALID_PID;
38 if (hostClnt->hostService != NULL) {
39 struct DevHostServiceProxy *hostProxy = (struct DevHostServiceProxy *)hostClnt->hostService;
40 DevHostServiceProxyRecycle(hostProxy);
41 hostClnt->hostService = NULL;
42 }
43
44 HdfSListFlush(&hostClnt->devices, DeviceTokenClntDelete);
45 }
46
DevmgrServiceFullHandleDeviceHostDied(struct DevHostServiceClnt * hostClnt)47 static int32_t DevmgrServiceFullHandleDeviceHostDied(struct DevHostServiceClnt *hostClnt)
48 {
49 bool isHostEmpty = HdfSListIsEmpty(&hostClnt->devices);
50
51 CleanupDiedHostResources(hostClnt);
52 if (isHostEmpty || hostClnt->stopFlag) {
53 return 0;
54 }
55
56 if (g_hostMap.nodeSize == 0) {
57 MapInit(&g_hostMap);
58 }
59 int *hostDieValue = (int *)MapGet(&g_hostMap, hostClnt->hostName);
60 if (hostDieValue == NULL) {
61 int hostDieNum = HOST_INIT_DIE_NUM;
62 MapSet(&g_hostMap, hostClnt->hostName, &hostDieNum, sizeof(int));
63 } else {
64 if (*hostDieValue > HOST_MAX_DIE_NUM) {
65 HDF_LOGE("host %{public}s die 4 times, remove it", hostClnt->hostName);
66 *hostDieValue = 0;
67 hostClnt->stopFlag = false;
68 return INVALID_PID;
69 }
70 (*hostDieValue)++;
71 }
72 HDF_LOGI("%{public}s:%{public}d", __func__, __LINE__);
73 struct IDriverInstaller *installer = DriverInstallerGetInstance();
74 if (installer != NULL && installer->StartDeviceHost != NULL) {
75 HDF_LOGI("%{public}s:%{public}d", __func__, __LINE__);
76 hostClnt->hostPid = installer->StartDeviceHost(hostClnt->hostId, hostClnt->hostName);
77 return hostClnt->hostPid;
78 }
79 return INVALID_PID;
80 }
81
DevmgrServiceFullOnDeviceHostDied(struct DevmgrServiceFull * inst,uint32_t hostId)82 void DevmgrServiceFullOnDeviceHostDied(struct DevmgrServiceFull *inst, uint32_t hostId)
83 {
84 (void)hostId;
85 struct DevHostServiceClnt *hostClnt = NULL;
86 struct DevHostServiceClnt *hostClntTmp = NULL;
87 if (inst == NULL) {
88 return;
89 }
90 OsalMutexLock(&inst->super.devMgrMutex);
91 DLIST_FOR_EACH_ENTRY_SAFE(hostClnt, hostClntTmp, &inst->super.hosts, struct DevHostServiceClnt, node) {
92 if (hostClnt->hostId == hostId) {
93 int32_t ret = DevmgrServiceFullHandleDeviceHostDied(hostClnt);
94 if (ret == INVALID_PID) {
95 HDF_LOGE("%{public}s: failed to respawn host %{public}s", __func__, hostClnt->hostName);
96 }
97 break;
98 }
99 }
100 OsalMutexUnlock(&inst->super.devMgrMutex);
101 }
102
DevmgrServiceFullDispatchMessage(struct HdfMessageTask * task,struct HdfMessage * msg)103 int32_t DevmgrServiceFullDispatchMessage(struct HdfMessageTask *task, struct HdfMessage *msg)
104 {
105 (void)task;
106 struct DevmgrServiceFull *fullService =
107 (struct DevmgrServiceFull *)DevmgrServiceGetInstance();
108 if (msg == NULL) {
109 HDF_LOGE("Input msg is null");
110 return HDF_ERR_INVALID_PARAM;
111 }
112 switch (msg->messageId) {
113 case DEVMGR_MESSAGE_DEVHOST_DIED: {
114 int hostId = (int)(uintptr_t)msg->data[0];
115 DevmgrServiceFullOnDeviceHostDied(fullService, hostId);
116 break;
117 }
118 default: {
119 HDF_LOGE("wrong message(%{public}u)", msg->messageId);
120 }
121 }
122
123 return HDF_SUCCESS;
124 }
125
DevmgrServiceFullGetMessageTask(void)126 struct HdfMessageTask *DevmgrServiceFullGetMessageTask(void)
127 {
128 struct DevmgrServiceFull *fullService =
129 (struct DevmgrServiceFull *)DevmgrServiceGetInstance();
130 if (fullService != NULL) {
131 return &fullService->task;
132 }
133 HDF_LOGE("Get message task failed, fullService is null");
134 return NULL;
135 }
136
DevmgrServiceFullConstruct(struct DevmgrServiceFull * inst)137 void DevmgrServiceFullConstruct(struct DevmgrServiceFull *inst)
138 {
139 static struct IHdfMessageHandler handler = {
140 .Dispatch = DevmgrServiceFullDispatchMessage
141 };
142 if (inst != NULL) {
143 HdfMessageLooperConstruct(&inst->looper);
144 DevmgrServiceConstruct(&inst->super);
145 HdfMessageTaskConstruct(&inst->task, &inst->looper, &handler);
146 }
147 }
148
DevmgrServiceFullCreate(void)149 struct HdfObject *DevmgrServiceFullCreate(void)
150 {
151 static struct DevmgrServiceFull *instance = NULL;
152 if (instance == NULL) {
153 static struct DevmgrServiceFull fullInstance;
154 DevmgrServiceFullConstruct(&fullInstance);
155 instance = &fullInstance;
156 }
157 return (struct HdfObject *)instance;
158 }
159
DeviceManagerIsQuickLoad(void)160 int DeviceManagerIsQuickLoad(void)
161 {
162 return false;
163 }
164