43 lines
1.4 KiB
Rust
43 lines
1.4 KiB
Rust
use std::ffi::c_char;
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use dlopen::raw::Library;
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use super::{context::PluginContext, Plugin, PluginInfo};
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#[derive(Debug, Clone, Copy)]
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pub struct PluginSyms {
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pub(super) init: unsafe extern "C" fn(ctx: *const PluginContext),
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pub(super) pre_reload: unsafe extern "C" fn() -> *const (),
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pub(super) post_reload: unsafe extern "C" fn(state: *const ()),
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pub(super) poll: unsafe extern "C" fn(buf: *mut c_char, len: usize),
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pub(super) free: unsafe extern "C" fn(),
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pub(super) get_info: unsafe extern "C" fn() -> *const PluginInfo,
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}
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impl Plugin {
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pub fn reload_symbols(&mut self) -> Result<(), dlopen::Error> {
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log::debug!("Loading {:?}", self.path);
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let lib = Library::open(&self.path)?;
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let symbols = PluginSyms {
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init: unsafe { lib.symbol("plug_init")? },
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pre_reload: unsafe { lib.symbol("plug_pre_reload")? },
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post_reload: unsafe { lib.symbol("plug_post_reload")? },
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poll: unsafe { lib.symbol("plug_poll")? },
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free: unsafe { lib.symbol("plug_free")? },
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get_info: unsafe { lib.symbol("plug_get_info")? },
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};
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unsafe {
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if (symbols.get_info)().is_null() {
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log::error!("Info fields for plugin {:?} are null", self.path);
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self.disable();
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}
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}
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self.syms = Some(symbols);
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self.lib = Some(lib);
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Ok(())
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}
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}
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