github.com/notti/nocgo@v0.0.0-20190619201224-fc443047424c/internal/dlopen/dlopencgo.go (about)

     1  // +build cgo
     2  
     3  package dlopen
     4  
     5  // #cgo LDFLAGS: -ldl
     6  // #include <dlfcn.h>
     7  import "C"
     8  import "unsafe"
     9  
    10  func DLOpen(filename []byte, flags int32) uintptr {
    11  	return uintptr(C.dlopen((*C.char)(unsafe.Pointer(&filename[0])), C.int(flags)))
    12  }
    13  
    14  func DLClose(handle uintptr) int32 {
    15  	return int32(C.dlclose(unsafe.Pointer(handle)))
    16  }
    17  
    18  func DLSym(handle uintptr, symbol []byte) uintptr {
    19  	return uintptr(C.dlsym(unsafe.Pointer(handle), (*C.char)(unsafe.Pointer(&symbol[0]))))
    20  }
    21  
    22  func DLError() uintptr {
    23  	return uintptr(unsafe.Pointer(C.dlerror()))
    24  }