76 lines
1.6 KiB
Go
76 lines
1.6 KiB
Go
|
//go:build linux || darwin || freebsd
|
||
|
|
|
||
|
|
package main
|
||
|
|
|
||
|
|
/*
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
typedef void (*host_callback_t)(uintptr_t ctx,
|
||
|
|
const char* event, int eventLen,
|
||
|
|
const char* payload, int payloadLen);
|
||
|
|
|
||
|
|
static void invoke_host_callback(uintptr_t fn, uintptr_t ctx,
|
||
|
|
const char* ev, int evLen, const char* pl, int plLen) {
|
||
|
|
((host_callback_t)fn)(ctx, ev, evLen, pl, plLen);
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
import "C"
|
||
|
|
|
||
|
|
import "unsafe"
|
||
|
|
|
||
|
|
var (
|
||
|
|
hostCallbackFn C.uintptr_t
|
||
|
|
hostCallbackCtx C.uintptr_t
|
||
|
|
)
|
||
|
|
|
||
|
|
func hostSendViaCallback(event string, payload []byte) {
|
||
|
|
fn := hostCallbackFn
|
||
|
|
if fn == 0 {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
evBytes := []byte(event)
|
||
|
|
var evPtr, plPtr unsafe.Pointer
|
||
|
|
if len(evBytes) > 0 {
|
||
|
|
evPtr = unsafe.Pointer(&evBytes[0])
|
||
|
|
}
|
||
|
|
if len(payload) > 0 {
|
||
|
|
plPtr = unsafe.Pointer(&payload[0])
|
||
|
|
}
|
||
|
|
C.invoke_host_callback(fn, hostCallbackCtx,
|
||
|
|
(*C.char)(evPtr), C.int(len(evBytes)),
|
||
|
|
(*C.char)(plPtr), C.int(len(payload)))
|
||
|
|
}
|
||
|
|
|
||
|
|
//export PluginOnLoad
|
||
|
|
func PluginOnLoad(hostInfo *C.char, hostInfoLen C.int, cb C.uintptr_t, ctx C.uintptr_t) C.int {
|
||
|
|
hostCallbackFn = cb
|
||
|
|
hostCallbackCtx = ctx
|
||
|
|
setSend(hostSendViaCallback)
|
||
|
|
|
||
|
|
data := C.GoBytes(unsafe.Pointer(hostInfo), hostInfoLen)
|
||
|
|
if err := handleInit(data); err != nil {
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
//export PluginOnEvent
|
||
|
|
func PluginOnEvent(event *C.char, eventLen C.int, payload *C.char, payloadLen C.int) C.int {
|
||
|
|
ev := C.GoStringN(event, eventLen)
|
||
|
|
var pl []byte
|
||
|
|
if payloadLen > 0 {
|
||
|
|
pl = C.GoBytes(unsafe.Pointer(payload), payloadLen)
|
||
|
|
}
|
||
|
|
if err := handleEvent(ev, pl); err != nil {
|
||
|
|
return 1
|
||
|
|
}
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
|
||
|
|
//export PluginOnUnload
|
||
|
|
func PluginOnUnload() {
|
||
|
|
handleUnload()
|
||
|
|
}
|
||
|
|
|
||
|
|
func main() {}
|