src/bindings/python/bt2/bt2/native_bt_plugin.i.h

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
   5  */
   6
   7 #ifndef BABELTRACE_BINDINGS_PYTHON_BT2_BT2_NATIVE_BT_PLUGIN_I_H
   8 #define BABELTRACE_BINDINGS_PYTHON_BT2_BT2_NATIVE_BT_PLUGIN_I_H
   9
  10 /*
  11  * Those  bt_bt2_*() functions below ensure that when the API function
  12  * fails, the output parameter is set to `NULL`.  This is necessary
  13  * because the epilogue of the `something **OUT` typemap will use that
  14  * value to make a Python object.  We can't rely on the initial value of
  15  * `*OUT`; it could point to unreadable memory.
  16  */
  17
  18 static
  19 bt_property_availability bt_bt2_plugin_get_version(
  20                 const bt_plugin *plugin, unsigned int *major,
  21                 unsigned int *minor, unsigned int *patch, const char **extra)
  22 {
  23         bt_property_availability ret;
  24
  25         ret = bt_plugin_get_version(plugin, major, minor, patch, extra);
  26
  27         if (ret == BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE) {
  28                 *extra = NULL;
  29         }
  30
  31         return ret;
  32 }
  33
  34 static
  35 bt_plugin_find_status bt_bt2_plugin_find(const char *plugin_name,
  36                 bt_bool find_in_std_env_var, bt_bool find_in_user_dir,
  37                 bt_bool find_in_sys_dir, bt_bool find_in_static,
  38                 bt_bool fail_on_load_error, const bt_plugin **plugin)
  39 {
  40         bt_plugin_find_status status;
  41
  42         status = bt_plugin_find(plugin_name, find_in_std_env_var,
  43                 find_in_user_dir, find_in_sys_dir, find_in_static,
  44                 fail_on_load_error, plugin);
  45         if (status != __BT_FUNC_STATUS_OK) {
  46                 *plugin = NULL;
  47         }
  48
  49         return status;
  50 }
  51
  52 static
  53 bt_plugin_find_all_status bt_bt2_plugin_find_all(bt_bool find_in_std_env_var,
  54                 bt_bool find_in_user_dir, bt_bool find_in_sys_dir,
  55                 bt_bool find_in_static, bt_bool fail_on_load_error,
  56                 const bt_plugin_set **plugin_set)
  57 {
  58         bt_plugin_find_all_status status;
  59
  60         status = bt_plugin_find_all(find_in_std_env_var,
  61                 find_in_user_dir, find_in_sys_dir, find_in_static,
  62                 fail_on_load_error, plugin_set);
  63         if (status != __BT_FUNC_STATUS_OK) {
  64                 *plugin_set = NULL;
  65         }
  66
  67         return status;
  68 }
  69
  70 static
  71 bt_plugin_find_all_from_file_status bt_bt2_plugin_find_all_from_file(
  72                 const char *path, bt_bool fail_on_load_error,
  73                 const bt_plugin_set **plugin_set)
  74 {
  75         bt_plugin_find_all_from_file_status status;
  76
  77         status = bt_plugin_find_all_from_file(path, fail_on_load_error,
  78                 plugin_set);
  79         if (status != __BT_FUNC_STATUS_OK) {
  80                 *plugin_set = NULL;
  81         }
  82
  83         return status;
  84 }
  85
  86 static
  87 bt_plugin_find_all_from_dir_status bt_bt2_plugin_find_all_from_dir(
  88                 const char *path, bt_bool recurse, bt_bool fail_on_load_error,
  89                 const bt_plugin_set **plugin_set)
  90 {
  91         bt_plugin_find_all_from_dir_status status;
  92
  93         status = bt_plugin_find_all_from_dir(path, recurse, fail_on_load_error,
  94                 plugin_set);
  95         if (status != __BT_FUNC_STATUS_OK) {
  96                 *plugin_set = NULL;
  97         }
  98
  99         return status;
 100 }
 101
 102 #endif /* BABELTRACE_BINDINGS_PYTHON_BT2_BT2_NATIVE_BT_PLUGIN_I_H */