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feat: C ABI plugin loader with full CoreAPI dispatch

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- internal/plugin/cabi/: dlopen + dlsym for plugin_init
- create_core_api(): C struct with dispatch_bridge→go_core_dispatch
- go_core_dispatch routes all 25 SDK methods (RegisterTool, MemoryAPI, etc.)
- dynamic.go: cabiPlugin uses CreateCoreAPI(sdk)→Start(corePtr)
- Each plugin gets a unique ID stored in CoreAPI.ctx
- C functions moved to loader.c to avoid cgo duplicate symbol issues
This commit is contained in:
root
2026-07-17 08:54:45 +08:00
parent 277a29a786
commit 9ca793e66d
3 changed files with 356 additions and 207 deletions
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75
internal/plugin/cabi/loader.c Normal file
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// HomeAgent C ABI loader — C implementation (compiled alongside Go code via cgo)
#include <dlfcn.h>
#include <stdlib.h>
#include <string.h>
#define HOMEAGENT_ABI_VERSION 1
// PluginAPI — provided by the plugin
typedef struct {
int version; int version_min;
int (*init_plugin)(char*, char*, char**);
int (*start_plugin)(void*, int, char**);
int (*stop_plugin)(char**);
int (*invoke_tool)(char*, char*, char**, char**);
int (*invoke_stage)(char*, char*, char**);
int (*invoke_output)(char*, char*, char*, char**);
void (*free_string)(char*);
} plugin_api_t;
// CoreAPI — provided by the core
typedef struct {
int version; int version_min;
int (*dispatch)(int, void*, char*, char*, char*, int, int, char**, char**);
void* ctx;
} core_api_t;
// Forward declare Go dispatch function
extern int go_core_dispatch(int, void*, char*, char*, char*, int, int, char**, char**);
// Bridge function called by CoreAPI.dispatch
static int dispatch_bridge(int id, void* ctx, char* s1, char* s2, char* s3, int i1, int i2, char** r, char** e) {
return go_core_dispatch(id, ctx, s1, s2, s3, i1, i2, r, e);
}
// Create a CoreAPI struct
core_api_t* make_core_api(void) {
core_api_t* api = (core_api_t*)malloc(sizeof(core_api_t));
if (!api) return NULL;
api->version = HOMEAGENT_ABI_VERSION;
api->version_min = HOMEAGENT_ABI_VERSION;
api->dispatch = dispatch_bridge;
api->ctx = NULL;
return api;
}
void free_core_api(core_api_t* api) { free(api); }
// dlopen helpers
typedef void* lib_handle;
lib_handle lib_open(const char* path) {
return dlopen(path, RTLD_NOW | RTLD_LOCAL);
}
plugin_api_t* lib_get_api(lib_handle h) {
plugin_api_t* (*fn)(void);
*(void**)(&fn) = dlsym(h, "plugin_init");
if (!fn) return NULL;
return fn();
}
void lib_close(lib_handle h) { dlclose(h); }
char* lib_err(void) { return dlerror(); }
void api_free_string(plugin_api_t* api, char* ptr) {
if (api && api->free_string) api->free_string(ptr);
}
int call_init_plugin(plugin_api_t* api, char* name, char* config, char** err) { return api->init_plugin(name, config, err); }
int call_start_plugin(plugin_api_t* api, void* core, int ver, char** err) { return api->start_plugin(core, ver, err); }
int call_stop_plugin(plugin_api_t* api, char** err) { return api->stop_plugin(err); }
int call_invoke_tool(plugin_api_t* api, char* n, char* a, char** r, char** e) { return api->invoke_tool(n, a, r, e); }
int call_invoke_stage(plugin_api_t* api, char* s, char* c, char** e) { return api->invoke_stage(s, c, e); }
int call_invoke_output(plugin_api_t* api, char* c, char* m, char* p, char** e) { return api->invoke_output(c, m, p, e); }