testing/test-cases/dyld_process_info_unload.dtest/target.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <dlfcn.h>
   5 #include <unistd.h>
   6 #include <dispatch/dispatch.h>
   7
   8 #include "test_support.h"
   9
  10 int main(int argc, const char* argv[], const char* envp[], const char* apple[]) {
  11     signal(SIGUSR1, SIG_IGN);
  12     dispatch_source_t signalSource = dispatch_source_create(DISPATCH_SOURCE_TYPE_PROC, getppid(),
  13                                                             DISPATCH_PROC_EXIT, dispatch_get_main_queue());
  14     dispatch_source_set_event_handler(signalSource, ^{
  15         exit(0);
  16     });
  17     dispatch_resume(signalSource);
  18
  19     dispatch_async(dispatch_get_main_queue(), ^{
  20             LOG("target starting");
  21             usleep(1000);
  22             // load and unload in a loop
  23             for (int i=1; i < 10000; ++i) {
  24                 void* h = dlopen("./libfoo.dylib", 0);
  25                 usleep(100000/(i*100));
  26                 dlclose(h);
  27             }
  28             LOG("target done");
  29     });
  30
  31     dispatch_main();
  32 }
  33