Too lazy to make propper edit but i changed the

polling system to a message one so we can have
more ways we can interract with plugins
(reload/ reset/ on click events)

sdk/c_cxx/dim_sdk.h

@@ -4,32 +4,83 @@
 
 #include <stdio.h>
 
+#define BUF_SZ 2048
+
+#ifdef _WIN32
+#define PATH_SEP "\\"
+#else
+#define PATH_SEP "/"
+#endif
+
+typedef enum log_level_t {
+    ERROR=1,
+    WARN=2,
+    INFO=3,
+    DEBUG=4,
+} log_level_t;
+
 typedef struct plug_info_t {
     char* name;
     char* version;
     char* license;
 } plug_info_t;
 
+typedef struct plug_funcs_ctx_t {
+    void (*log)(char* module, log_level_t level, char* s);
+} plug_funcs_ctx_t;
+
 typedef struct plug_ctx_t {
     char* config_dir;
+    plug_funcs_ctx_t funcs;
+    char* buf;
 } plug_ctx_t;
 
-#define PLUG_INFO(_name, _version, _license) \
+typedef struct plug_msg_t {
+    char* name;
+    char* value;
+} plug_msg_t;
+
+// Functions defs
+// User defined funcs
+int  plug_init(plug_ctx_t*);             // Loads when DIM initialises
+void* plug_pre_reload();                  // Return a pointer to save state
+int  plug_post_reload(void*);            // returns the same pointer after reload
+int  plug_on_msg(plug_msg_t*);           // Write the message to `buf` with max `size` characters 
+int  plug_free();                        // Free everything before being killed
+
+// Lib funcs
+void setup_ctx(plug_ctx_t* ctx);
+void _log(char* module, log_level_t level, char* s);
+
+
+// Macros
+#define PLUG_INFO(_name, _version, _license)                                                   \
 static plug_info_t PLUG_INFO_VAR = { .name=(_name), .version=(_version), .license=(_license)}; \
-void* plug_get_info() {     \
-    return &PLUG_INFO_VAR; \
+void* plug_get_info() {                                                                        \
+    return &PLUG_INFO_VAR;                                                                     \
 }                                      
 
+#define log(level, ...) do { \
+    char* buf = (char*)malloc(BUF_SZ*sizeof(char));         \
+    char* mod = (char*)malloc(BUF_SZ*sizeof(char));         \
+    snprintf(mod, BUF_SZ*sizeof(char),                      \
+            "(plug) %s/%s", PLUG_INFO_VAR.name, __FILE__); \
+    snprintf(buf, BUF_SZ*sizeof(char), __VA_ARGS__);        \
+    _log(mod, level, buf);                                  \
+    free(buf);                                              \
+    free(mod);                                              \
+} while (0)
 
-#define PLUG_NAME(s)    volatile char* PLUG_NAME = (s);
-#define PLUG_VERSION(s) volatile char* PLUG_VERSION = (s);
-#define PLUG_LICENSE(s) volatile char* PLUG_LICENSE = (s);
+#ifdef PLUG_IMPL
+static plug_ctx_t CTX = {0};
 
+void setup_ctx(plug_ctx_t* ctx) {
+    CTX = *ctx;
+}
 
-void  plug_init(plug_ctx_t*);                        // Loads when DIM initialises
-void* plug_pre_reload();                  // Return a pointer to save state
-void  plug_post_reload(void*);      // returns the same pointer after reload
-void  plug_poll(char*, size_t);  // Write the message to `buf` with max `size` characters 
-void  plug_free();                        // Free everything before being killed
+void _log(char* module, log_level_t level, char* s) {
+    (CTX.funcs.log)(module, level, s);
+}
 
 #endif
+#endif

sdk/rust/dim_sdk/Cargo.toml

@@ -11,3 +11,4 @@ anyhow = "1.0.86"
 bytes = "1.6.0"
 lazy_static = { version = "1.4.0", features = ["spin"] }
 libc = "0.2.155"
+log = { version = "0.4.21", features = ["std"] }

sdk/rust/dim_sdk/src/c_buffer.rs

@@ -1,33 +1,40 @@
-#[derive(Debug)]
-pub struct CBuffer<'a> {
-    inner: &'a mut [i8],
+#[derive(Debug, Clone)]
+pub struct CBuffer {
+    inner: Vec<u8>,
     count: usize,
     capacity: usize 
 }
 
 #[allow(dead_code)] // rust_analyzer too dumb to see my macro magic
                     // i hate that macro as much as you do
-impl CBuffer<'_> {
-    pub fn from_raw_parts_mut(buf: *mut i8, capacity: usize) -> Self {
+impl CBuffer {
+    pub fn from_raw_parts_mut(buf: *mut u8, capacity: usize) -> Self {
         Self {
             inner: unsafe {
-                std::slice::from_raw_parts_mut(buf, capacity)
+                Vec::from_raw_parts(buf, capacity, capacity)
             },
             capacity,
             count: 0,
         }
 
     }
+
+    pub fn reset(&mut self) {
+        for i in 0..self.capacity {
+            self.inner[i] = 0;
+        }
+        self.count = 0;
+    }
 }
 
 
-impl std::fmt::Write for CBuffer<'_> {
+impl std::fmt::Write for CBuffer {
     fn write_str(&mut self, buf: &str) -> Result<(), std::fmt::Error> { 
         for c in buf.as_bytes() {
             if self.count >= self.capacity - 1 {
                 return Ok(());
             }
-            self.inner[self.count] = *c as i8;
+            self.inner[self.count] = *c;
             self.count += 1;
         }
         self.inner[self.count] = 0;

sdk/rust/dim_sdk/src/context.rs

@@ -1,25 +1,46 @@
 use std::{ffi::{c_char, CStr}, path::PathBuf};
 
+use crate::CBuffer;
 
+
+#[derive(Debug, Clone)]
 #[repr(C)]
 pub struct ContextRaw {
-    pub config_dir: *const c_char
+    pub config_dir: *const c_char,
+    pub funcs: PluginContextFuncs,
+    pub buf: *mut u8,
 }
 
 #[derive(Debug, Clone)]
 pub struct Context {
-    pub config_dir: PathBuf
+    pub config_dir: PathBuf,
+    pub funcs: PluginContextFuncs,
+    pub buf: CBuffer
+}
+
+#[repr(C)]
+#[derive(Debug, Clone)]
+pub struct PluginContextFuncs {
+    pub log: unsafe extern "C" fn(module: *const c_char, level: log::Level, s: *const c_char),
 }
 
 impl Context {
-    pub fn new(cr: *const ContextRaw) -> Self {
+    pub fn new(cr: ContextRaw) -> Self {
         let config_dir = unsafe {
-            let v = CStr::from_ptr((*cr).config_dir);
-            PathBuf::from(v.to_string_lossy().to_string())
+            let v = CStr::from_ptr(cr.config_dir);
+            PathBuf::from(v.to_string_lossy().to_string().clone())
         };
-
         Self {
-            config_dir
+            config_dir,
+            funcs: cr.funcs.clone(),
+            buf: CBuffer::from_raw_parts_mut(cr.buf, crate::BUF_SZ)
         }
     }
 }
+
+impl std::fmt::Write for Context {
+    fn write_str(&mut self, buf: &str) -> Result<(), std::fmt::Error> { 
+        self.buf.write_str(buf)
+    }
+}
+

sdk/rust/dim_sdk/src/lib.rs

@@ -4,23 +4,55 @@ mod magic;
 mod c_buffer;
 mod plugin_info;
 mod context;
+mod logger;
+
+use std::ffi::{c_char, CStr};
 
 pub use c_buffer::*;
 pub use plugin_info::*;
 pub use anyhow::Result;
 pub use context::*;
+pub use logger::*;
+
+pub const BUF_SZ: usize = 2048;
+
+pub trait DimPlugin: Clone{
+    fn init(ctx: Context) -> Result<Self>;
+    fn pre_reload(&mut self) -> Result<()>;
+    fn post_reload(&mut self) -> Result<()>;
+    fn on_message(&mut self, msg: Message) -> Result<()>;
+    fn free(&mut self) -> Result<()>;
+}
+
+#[derive(Debug)]
+pub struct Message {
+    pub name: String,
+    pub value: String,
+}
+
+#[derive(Debug, Clone)]
+#[repr(C)]
+pub struct MessageRaw {
+    pub name: *const c_char,
+    pub value: *const c_char,
+}
+
+
+impl Message {
+    pub fn new(msg: MessageRaw) -> Self {
+        unsafe {
+            Self { 
+                name: CStr::from_ptr(msg.name.clone())
+                        .to_string_lossy().to_string(), 
+                value: CStr::from_ptr(msg.value.clone())
+                        .to_string_lossy().to_string()
+            }
+        }
+    }
 
-pub trait DimPlugin: Clone {
-    fn init(&mut self, ctx: Context);
-    fn pre_reload(&mut self);
-    fn post_reload(&mut self);
-    fn poll(&mut self, f: &mut CBuffer) -> Result<()>;
-    fn free(&mut self) {}
 }
 
 
 
 
 
-
-

sdk/rust/dim_sdk/src/logger.rs

@@ -0,0 +1,37 @@
+use std::ffi::{c_char, CString};
+
+use crate::Context;
+
+#[allow(dead_code)]
+#[derive(Debug, Clone)]
+pub struct DimLogger {
+    log_fn:  unsafe extern "C" fn(module: *const c_char, level: log::Level, s: *const c_char),
+}
+
+impl log::Log for DimLogger {
+    fn enabled(&self, _: &log::Metadata) -> bool {true}
+
+    fn log(&self, record: &log::Record) {
+        unsafe {
+            let module = format!("(plug) {}", record.module_path().unwrap_or("UNKNOWN"));
+            let module = CString::new(module).unwrap();
+            let s = CString::new(format!("{}", record.args())).unwrap();
+            (self.log_fn)(module.as_ptr(), record.level(), s.as_ptr());
+        }
+    }
+
+    fn flush(&self) {}
+}
+
+impl DimLogger {
+    pub fn new(ctx: &Context) -> Self {
+        Self {
+            log_fn: ctx.funcs.log,
+        }
+    }
+
+    pub fn init(&self) {
+        let _ = log::set_boxed_logger(Box::new(self.clone()))
+            .map(|()| log::set_max_level(log::LevelFilter::Debug));
+    }
+}

sdk/rust/dim_sdk/src/magic.rs

@@ -2,7 +2,7 @@
 #[macro_export]
 macro_rules! plugin_info {
     ($typ:ty, $name:literal, $version:literal, $license:literal) => {
-        
+         
         lazy_static::lazy_static!(
             static ref PLUGIN_INFO: $crate::PluginInfo = $crate::PluginInfo::new($name, $version, $license);
         );
@@ -14,61 +14,87 @@ macro_rules! plugin_info {
             PLUGIN_INFO.get_raw_ptr()
         }
 
-        #[no_mangle]
-        unsafe extern "C" fn plug_init(ctx: *const $crate::ContextRaw) {
-            //PLUG = std::alloc::alloc(std::alloc::Layout::new::<$typ>()) as *mut $typ;
-            PLUG = Some(Plug::new());
-            
-            let ctx = $crate::Context::new(ctx);
-            if let Some(p) = &mut PLUG {
-                p.init(ctx)
-            } else {
-                unreachable!();
+        impl $typ {
+            pub fn get_plugin_info(&self) -> $crate::PluginInfo {
+                $crate::PluginInfo::new(
+                    PLUGIN_INFO.name().as_str(),
+                    PLUGIN_INFO.version().as_str(),
+                    PLUGIN_INFO.license().as_str()
+                    )
             }
         }
 
+        #[no_mangle]
+        unsafe extern "C" fn plug_init(ctx: *const $crate::ContextRaw) -> i32 {
+            let ctx = $crate::Context::new((*ctx).clone());
+            $crate::DimLogger::new(&ctx).init();
+            match <$typ>::init(ctx) {
+                Ok(v) => {
+                    PLUG = Some(v);
+                    return 0;
+                }
+                Err(e) => {
+                    log::error!("Had an error while initialising: {e}");
+                    return 1;
+                }
+            };
+        }
+
         #[no_mangle]
         unsafe extern "C" fn plug_pre_reload() -> *mut $typ {
             //TODO: Untested 
             if let Some(p) = &mut PLUG {
-                p.pre_reload();
+                if let Err(e) = p.pre_reload() {
+                    log::error!("Had an error on pre reload: {e}");
+                    return std::ptr::null_mut();
+                }
                 return p as *mut $typ;
             }
             unreachable!();
         }
 
         #[no_mangle]
-        unsafe extern "C" fn plug_post_reload(state: *mut $typ) {
+        unsafe extern "C" fn plug_post_reload(state: *mut $typ) -> i32 {
             PLUG = Some((*state).clone());
 
             if let Some(p) = &mut PLUG {
-                p.post_reload();
-            } else {
-                unreachable!();
-            }
-            //TODO: Untested
-        }
-
-        #[no_mangle]
-        unsafe extern "C" fn plug_poll(buf: *mut i8, len: std::ffi::c_uint) {
-            let mut buf = $crate::CBuffer::from_raw_parts_mut(buf, len as usize);
-            if let Some(p) = &mut PLUG {
-                if let Err(_e) = p.poll(&mut buf) {
-                    // TODO: Handle error maybe?
+                if let Err(e) = p.post_reload() {
+                    log::error!("Had an error on pre reload: {e}");
+                    return 1;
                 }
             } else {
                 unreachable!();
             }
+            //TODO: Untested
+            return 0;
         }
 
         #[no_mangle]
-        unsafe extern "C" fn plug_free() {
+        unsafe extern "C" fn plug_on_msg(msg: *const $crate::MessageRaw) -> i32 {
+            let msg = $crate::Message::new((*msg).clone());
             if let Some(p) = &mut PLUG {
-                // std::alloc::dealloc(PLUG as *mut u8, std::alloc::Layout::new::<$typ>());
-                p.free();
+                if let Err(e) = p.on_message(msg) {
+                    log::error!("Had error on `on_msg`: {e}");
+                    return 1;
+                }
             } else {
                 unreachable!();
             }
+            return 0;
+        }
+
+        #[no_mangle]
+        unsafe extern "C" fn plug_free() -> i32 {
+            if let Some(p) = &mut PLUG {
+                // std::alloc::dealloc(PLUG as *mut u8, std::alloc::Layout::new::<$typ>());
+                if let Err(e) = p.free() {
+                    log::error!("Had error on `free`: {e}");
+                    return 1;
+                }
+            } else {
+                unreachable!();
+            }
+            return 0;
         }
 
     };

sdk/rust/dim_sdk/src/plugin_info.rs

@@ -36,6 +36,16 @@ impl PluginInfo {
     pub fn get_raw_ptr(&self) -> *const c_void {
         &self.ptrs as *const _ as *const c_void
     }
+
+    pub fn name(&self) -> String {
+        self._name.to_string_lossy().to_string()
+    }
+    pub fn version(&self) -> String {
+        self._version.to_string_lossy().to_string()
+    }
+    pub fn license(&self) -> String {
+        self._license.to_string_lossy().to_string()
+    }
 }
 unsafe impl Sync for PluginInfo {}