lib: Allow users of env_set() to specify a default value

So when the environment value isn't set, one can specify the default
value to return.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>

diff --git a/lib/drmtest.c b/lib/drmtest.c
index 016619c..26748b3 100644 (file)
--- a/lib/drmtest.c
+++ b/lib/drmtest.c
@@ -689,13 +689,13 @@ bool drmtest_only_list_subtests(void)
        return list_subtests;
 }
 
-static bool env_set(const char *env_var)
+static bool env_set(const char *env_var, bool default_value)
 {
        char *val;
 
        val = getenv(env_var);
        if (!val)
-               return false;
+               return default_value;
 
        return atoi(val) != 0;
 }
@@ -705,7 +705,7 @@ bool drmtest_run_in_simulation(void)
        static int simulation = -1;
 
        if (simulation == -1)
-               simulation = env_set("INTEL_SIMULATION");
+               simulation = env_set("INTEL_SIMULATION", false);
 
        return simulation;
 }