FileTestLockHelper.cpp File Reference

#include <glog/logging.h>
#include <folly/File.h>
#include <folly/portability/GFlags.h>

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Functions
	DEFINE_bool (s, false,"get shared lock")
	DEFINE_bool (x, false,"get exclusive lock")
int	main (int argc, char *argv[])

Function Documentation

DEFINE_bool	(	s	,
		false	,
		"get shared lock"
	)

DEFINE_bool	(	x	,
		false	,
		"get exclusive lock"
	)

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 25 of file FileTestLockHelper.cpp.

References f, folly::File::try_lock(), and folly::File::try_lock_shared().

                                 {
  gflags::ParseCommandLineFlags(&argc, &argv, true);
  google::InitGoogleLogging(argv[0]);
  CHECK_EQ(FLAGS_s + FLAGS_x, 1)
      << "exactly one of -s and -x must be specified";
  CHECK_EQ(argc, 2);
  folly::File f(argv[1], O_RDWR);
  bool r;
  if (FLAGS_s) {
    r = f.try_lock_shared();
  } else {
    r = f.try_lock();
  }
  return r ? 0 : 42;
}