nico/NickelMenu-custom
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Added support for legacy settings constructor (fixes #7)

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This commit is contained in:
Patrick Gaskin
2020-05-05 15:13:22 -04:00
parent 0fefeff0a7
commit 6da01afcab
1 changed files with 7 additions and 2 deletions
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9
src/action_cc.cc
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@@ -34,8 +34,10 @@ NM_ACTION_(nickel_setting) {
NM_ASSERT(Device_getCurrentDevice, "could not dlsym Device::getCurrentDevice");
void *(*Settings_Settings)(Settings*, Device*, bool);
void *(*Settings_SettingsLegacy)(Settings*, Device*);
reinterpret_cast<void*&>(Settings_Settings) = dlsym(RTLD_DEFAULT, "_ZN8SettingsC2ERK6Deviceb");
NM_ASSERT(Settings_Settings, "could not dlsym Settings constructor");
reinterpret_cast<void*&>(Settings_SettingsLegacy) = dlsym(RTLD_DEFAULT, "_ZN8SettingsC2ERK6Device");
NM_ASSERT(Settings_Settings || Settings_SettingsLegacy, "could not dlsym Settings constructor (new and/or old)");
void *(*Settings_SettingsD)(Settings*);
reinterpret_cast<void*&>(Settings_SettingsD) = dlsym(RTLD_DEFAULT, "_ZN8SettingsD2Ev");
@@ -55,7 +57,10 @@ NM_ACTION_(nickel_setting) {
NM_ASSERT(dev, "could not get shared nickel device pointer");
Settings *settings = alloca(128); // way larger than it is, but better to be safe
Settings_Settings(settings, dev, false);
if (Settings_Settings)
Settings_Settings(settings, dev, false);
else if (Settings_SettingsLegacy)
Settings_SettingsLegacy(settings, dev);
// to cast the generic Settings into its subclass FeatureSettings, the
// vtable pointer at the beginning needs to be replaced with the target