Fix test failure in test_libbcc (iovisor#603)

On some systems, was seeing a failure at tests/cc/test_c_api.cc:172 due to failure to open the /tmp/perf-pid.map file. Looking through the code, narrowed it down to an invalid use of c_str() on a temporary std::string. Fix it by storing the string in a variable. Signed-off-by: Brenden Blanco <[email protected]>
githubTang-T · Jul 8, 2016 · 52cd371 · 52cd371
1 parent 966edb2
commit 52cd371
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/tests/cc/test_c_api.cc b/tests/cc/test_c_api.cc
@@ -123,8 +123,8 @@ static string perf_map_path(pid_t pid) {
 static int child_func(void *arg) {
  unsigned long long map_addr = (unsigned long long)arg;
 
- const char *path = perf_map_path(getpid()).c_str();
- FILE *file = fopen(path, "w");
+ string path = perf_map_path(getpid());
+ FILE *file = fopen(path.c_str(), "w");
  if (file == NULL) {
  return -1;
  }
@@ -134,7 +134,7 @@ static int child_func(void *arg) {
 
  sleep(5);
 
- unlink(path);
+ unlink(path.c_str());
  return 0;
 }