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use std::error::Error;
use std::panic::catch_unwind;
use std::ptr;
use libc::{c_char, size_t, c_uint};
use loadorder::LoadOrderMethod;
use constants::*;
use helpers::{error, handle_error, to_c_string, to_c_string_array, to_str, to_str_vec};
use super::lo_game_handle;
#[no_mangle]
pub unsafe extern "C" fn lo_get_load_order_method(
handle: lo_game_handle,
method: *mut c_uint,
) -> c_uint {
catch_unwind(|| {
if handle.is_null() || method.is_null() {
return error(LIBLO_ERROR_INVALID_ARGS, "Null pointer passed");
}
let handle = match (*handle).read() {
Err(e) => return error(LIBLO_ERROR_POISONED_THREAD_LOCK, e.description()),
Ok(h) => h,
};
*method = match handle.game_settings().load_order_method() {
LoadOrderMethod::Timestamp => LIBLO_METHOD_TIMESTAMP,
LoadOrderMethod::Textfile => LIBLO_METHOD_TEXTFILE,
LoadOrderMethod::Asterisk => LIBLO_METHOD_ASTERISK,
};
LIBLO_OK
}).unwrap_or(LIBLO_ERROR_PANICKED)
}
#[no_mangle]
pub unsafe extern "C" fn lo_get_load_order(
handle: lo_game_handle,
plugins: *mut *mut *mut c_char,
num_plugins: *mut size_t,
) -> c_uint {
catch_unwind(|| {
if handle.is_null() || plugins.is_null() || num_plugins.is_null() {
return error(LIBLO_ERROR_INVALID_ARGS, "Null pointer passed");
}
let handle = match (*handle).read() {
Err(e) => return error(LIBLO_ERROR_POISONED_THREAD_LOCK, e.description()),
Ok(h) => h,
};
*plugins = ptr::null_mut();
*num_plugins = 0;
let plugin_names = handle.plugin_names();
if plugin_names.is_empty() {
return LIBLO_OK;
}
match to_c_string_array(plugin_names) {
Ok((pointer, size)) => {
*plugins = pointer;
*num_plugins = size;
}
Err(x) => return error(x, "A filename contained a null byte"),
}
LIBLO_OK
}).unwrap_or(LIBLO_ERROR_PANICKED)
}
#[no_mangle]
pub unsafe extern "C" fn lo_set_load_order(
handle: lo_game_handle,
plugins: *const *const c_char,
num_plugins: size_t,
) -> c_uint {
catch_unwind(|| {
if handle.is_null() || plugins.is_null() {
return error(LIBLO_ERROR_INVALID_ARGS, "Null pointer passed");
}
if num_plugins == 0 {
return error(LIBLO_ERROR_INVALID_ARGS, "Zero-length plugin array passed.");
}
let mut handle = match (*handle).write() {
Err(e) => return error(LIBLO_ERROR_POISONED_THREAD_LOCK, e.description()),
Ok(h) => h,
};
let plugins: Vec<&str> = match to_str_vec(plugins, num_plugins) {
Ok(x) => x,
Err(x) => return error(x, "A filename contained a null byte"),
};
if let Err(x) = handle.set_load_order(&plugins) {
return handle_error(x);
}
if let Err(x) = handle.save() {
handle.plugins_mut().clear();
return handle_error(x);
}
LIBLO_OK
}).unwrap_or(LIBLO_ERROR_PANICKED)
}
#[no_mangle]
pub unsafe extern "C" fn lo_get_plugin_position(
handle: lo_game_handle,
plugin: *const c_char,
index: *mut size_t,
) -> c_uint {
catch_unwind(|| {
if handle.is_null() || plugin.is_null() || index.is_null() {
return error(LIBLO_ERROR_INVALID_ARGS, "Null pointer passed");
}
let handle = match (*handle).read() {
Err(e) => return error(LIBLO_ERROR_POISONED_THREAD_LOCK, e.description()),
Ok(h) => h,
};
let plugin = match to_str(plugin) {
Ok(x) => x,
Err(x) => return error(x, "The filename contained a null byte"),
};
match handle.index_of(plugin) {
Some(x) => *index = x,
None => return error(LIBLO_ERROR_FILE_NOT_FOUND, "Plugin not found"),
}
LIBLO_OK
}).unwrap_or(LIBLO_ERROR_PANICKED)
}
#[no_mangle]
pub unsafe extern "C" fn lo_set_plugin_position(
handle: lo_game_handle,
plugin: *const c_char,
index: size_t,
) -> c_uint {
catch_unwind(|| {
if handle.is_null() || plugin.is_null() {
return error(LIBLO_ERROR_INVALID_ARGS, "Null pointer passed");
}
let mut handle = match (*handle).write() {
Err(e) => return error(LIBLO_ERROR_POISONED_THREAD_LOCK, e.description()),
Ok(h) => h,
};
let plugin = match to_str(plugin) {
Ok(x) => x,
Err(x) => return error(x, "The filename contained a null byte"),
};
if let Err(x) = handle.set_plugin_index(plugin, index) {
return handle_error(x);
}
if let Err(x) = handle.save() {
handle.plugins_mut().clear();
return handle_error(x);
}
LIBLO_OK
}).unwrap_or(LIBLO_ERROR_PANICKED)
}
#[no_mangle]
pub unsafe extern "C" fn lo_get_indexed_plugin(
handle: lo_game_handle,
index: size_t,
plugin: *mut *mut c_char,
) -> c_uint {
catch_unwind(|| {
if handle.is_null() || plugin.is_null() {
return error(LIBLO_ERROR_INVALID_ARGS, "Null pointer passed");
}
let handle = match (*handle).read() {
Err(e) => return error(LIBLO_ERROR_POISONED_THREAD_LOCK, e.description()),
Ok(h) => h,
};
*plugin = ptr::null_mut();
let plugin_name = match handle.plugin_at(index) {
Some(x) => x,
None => return error(LIBLO_ERROR_INVALID_ARGS, "Plugin is not in the load order"),
};
match to_c_string(&plugin_name) {
Ok(x) => *plugin = x,
Err(x) => return error(x, "The filename contained a null byte"),
}
LIBLO_OK
}).unwrap_or(LIBLO_ERROR_PANICKED)
}