Home | History | Annotate | Download | only in dumpsys 
      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 <binder/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 
     22 using namespace android;
     23 
     24 static int sort_func(const String16* lhs, const String16* rhs)
     25 {
     26     return lhs->compare(*rhs);
     27 }
     28 
     29 int main(int argc, char* const argv[])
     30 {
     31     signal(SIGPIPE, SIG_IGN);
     32     sp<IServiceManager> sm = defaultServiceManager();
     33     fflush(stdout);
     34     if (sm == NULL) {
     35 		ALOGE("Unable to get default service manager!");
     36         aerr << "dumpsys: Unable to get default service manager!" << endl;
     37         return 20;
     38     }
     39 
     40     Vector<String16> services;
     41     Vector<String16> args;
     42     bool showListOnly = false;
     43     if ((argc == 2) && (strcmp(argv[1], "-l") == 0)) {
     44         showListOnly = true;
     45     }
     46     if ((argc == 1) || showListOnly) {
     47         services = sm->listServices();
     48         services.sort(sort_func);
     49         args.add(String16("-a"));
     50     } else {
     51         services.add(String16(argv[1]));
     52         for (int i=2; i<argc; i++) {
     53             args.add(String16(argv[i]));
     54         }
     55     }
     56 
     57     const size_t N = services.size();
     58 
     59     if (N > 1) {
     60         // first print a list of the current services
     61         aout << "Currently running services:" << endl;
     62 
     63         for (size_t i=0; i<N; i++) {
     64             sp<IBinder> service = sm->checkService(services[i]);
     65             if (service != NULL) {
     66                 aout << "  " << services[i] << endl;
     67             }
     68         }
     69     }
     70 
     71     if (showListOnly) {
     72         return 0;
     73     }
     74 
     75     for (size_t i=0; i<N; i++) {
     76         sp<IBinder> service = sm->checkService(services[i]);
     77         if (service != NULL) {
     78             if (N > 1) {
     79                 aout << "------------------------------------------------------------"
     80                         "-------------------" << endl;
     81                 aout << "DUMP OF SERVICE " << services[i] << ":" << endl;
     82             }
     83             int err = service->dump(STDOUT_FILENO, args);
     84             if (err != 0) {
     85                 aerr << "Error dumping service info: (" << strerror(err)
     86                         << ") " << services[i] << endl;
     87             }
     88         } else {
     89             aerr << "Can't find service: " << services[i] << endl;
     90         }
     91     }
     92 
     93     return 0;
     94 }
     95