[Android]service list与dumpsys -l的结果差异分析

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在adb shell中，

service list

Found 137 services:

0 sip: [android.net.sip.ISipService]

1 nfc: [android.nfc.INfcAdapter]

...

对结果安装字母顺序进行排序（可使用sort命令），编辑后，和dumpsys -l 的结果进行比较

多了2个

android.service.gatekeeper.IGateKeeperService

netd

查看code，service.cpp里获取服务列表是

114 else if (strcmp(argv[optind], "list") == 0) {

115 Vector<String16> services = sm->listServices();

116 aout << "Found " << services.size() << " services:" << endl;

117 for (unsigned i = 0; i < services.size(); i++) {

118 String16 name = services[i];

119 sp<IBinder> service = sm->checkService(name);

120 aout << i

121 << "\t" << good_old_string(name)

122 << ": [" << good_old_string(get_interface_name(service)) << "]"

123 << endl;

124 }

125

dumpsys.cpp里

if ((argc == 1) || showListOnly) {

services = sm->listServices();

services.sort(sort_func);

args.add(String16("-a"));

} else {

services.add(String16(argv[1]));

for (int i=2; i<argc; i++) {

args.add(String16(argv[i]));

}

const size_t N = services.size();

if (N > 1) {

// first print a list of the current services

aout << "Currently running services:" << endl;

for (size_t i=0; i<N; i++) {

sp<IBinder> service = sm->checkService(services[i]);

if (service != NULL) {

aout << " " << services[i] << endl;

}

在打印的时候，进行了检查

sp<IBinder> service = sm->checkService(services[i]);

if (service != NULL) {

aout << " " << services[i] << endl;

}

service不为NULL才进行打印

$ service check netd

service check netd

Service netd: not found

$ service check android.service.gatekeeper.IGateKeeperService

service check android.service.gatekeeper.IGateKeeperService

Service android.service.gatekeeper.IGateKeeperService: not found

正常的check

$ service check battery

service check battery

Service battery: found

service list

对结果进行sort，编辑后，和dumpsys -l 的结果进行比较

多了2个

android.service.gatekeeper.IGateKeeperService

netd

查看code，service.cpp里获取服务列表是

114 else if (strcmp(argv[optind], "list") == 0) {

115 Vector<String16> services = sm->listServices();

116 aout << "Found " << services.size() << " services:" << endl;

117 for (unsigned i = 0; i < services.size(); i++) {

118 String16 name = services[i];

119 sp<IBinder> service = sm->checkService(name);

120 aout << i

121 << "\t" << good_old_string(name)

122 << ": [" << good_old_string(get_interface_name(service)) << "]"

123 << endl;

124 }

125

dumpsys.cpp里

if ((argc == 1) || showListOnly) {

services = sm->listServices();

services.sort(sort_func);

args.add(String16("-a"));

} else {

services.add(String16(argv[1]));

for (int i=2; i<argc; i++) {

args.add(String16(argv[i]));

}

const size_t N = services.size();

if (N > 1) {

// first print a list of the current services

aout << "Currently running services:" << endl;

for (size_t i=0; i<N; i++) {

sp<IBinder> service = sm->checkService(services[i]);

if (service != NULL) {

aout << " " << services[i] << endl;

}

在打印的时候，进行了检查

sp<IBinder> service = sm->checkService(services[i]);

if (service != NULL) {

aout << " " << services[i] << endl;

}

service不为NULL才进行打印

$ service check netd

service check netd

Service netd: not found

$ service check android.service.gatekeeper.IGateKeeperService

service check android.service.gatekeeper.IGateKeeperService

Service android.service.gatekeeper.IGateKeeperService: not found

正常的check

$ service check battery

service check battery

Service battery: found

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