1/*
2 * Command that dumps interesting system state to the log.
3 *
4 */
5
6#define LOG_TAG "dumpsys"
7
8#include <utils/Log.h>
9#include <binder/Parcel.h>
10#include <binder/ProcessState.h>
11#include <binder/IServiceManager.h>
12#include <utils/TextOutput.h>
13#include <utils/Vector.h>
14
15#include <getopt.h>
16#include <stdlib.h>
17#include <stdio.h>
18#include <string.h>
19#include <unistd.h>
20#include <sys/time.h>
21
22using namespace android;
23
24static int sort_func(const String16* lhs, const String16* rhs)
25{
26    return lhs->compare(*rhs);
27}
28
29int main(int argc, char* const argv[])
30{
31    sp<IServiceManager> sm = defaultServiceManager();
32    fflush(stdout);
33    if (sm == NULL) {
34		LOGE("Unable to get default service manager!");
35        aerr << "dumpsys: Unable to get default service manager!" << endl;
36        return 20;
37    }
38
39    Vector<String16> services;
40    Vector<String16> args;
41    if (argc == 1) {
42        services = sm->listServices();
43        services.sort(sort_func);
44        args.add(String16("-a"));
45    } else {
46        services.add(String16(argv[1]));
47        for (int i=2; i<argc; i++) {
48            args.add(String16(argv[i]));
49        }
50    }
51
52    const size_t N = services.size();
53
54    if (N > 1) {
55        // first print a list of the current services
56        aout << "Currently running services:" << endl;
57
58        for (size_t i=0; i<N; i++) {
59            sp<IBinder> service = sm->checkService(services[i]);
60            if (service != NULL) {
61                aout << "  " << services[i] << endl;
62            }
63        }
64    }
65
66    for (size_t i=0; i<N; i++) {
67        sp<IBinder> service = sm->checkService(services[i]);
68        if (service != NULL) {
69            if (N > 1) {
70                aout << "------------------------------------------------------------"
71                        "-------------------" << endl;
72                aout << "DUMP OF SERVICE " << services[i] << ":" << endl;
73            }
74            int err = service->dump(STDOUT_FILENO, args);
75            if (err != 0) {
76                aerr << "Error dumping service info: (" << strerror(err)
77                        << ") " << services[i] << endl;
78            }
79        } else {
80            aerr << "Can't find service: " << services[i] << endl;
81        }
82    }
83
84    return 0;
85}
86