github.com/danbrough/mobile@v0.0.3-beta03/bind/seq.go.support (about)

     1  // Copyright 2016 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package main
     6  
     7  // Go support functions for generated Go bindings. This file is
     8  // copied into the generated main package, and compiled along
     9  // with the bindings.
    10  
    11  // #cgo android CFLAGS: -D__GOBIND_ANDROID__
    12  // #cgo windows CFLAGS: -D__GOBIND_LINUX__ -D__GOBIND_WINDOWS__
    13  // #cgo linux CFLAGS:   -D__GOBIND_LINUX__
    14  // #cgo darwin CFLAGS: -D__GOBIND_DARWIN__
    15  // #include <stdlib.h>
    16  // #include "seq.h"
    17  import "C"
    18  
    19  import (
    20  	"fmt"
    21  	"os"
    22  	"os/signal"
    23  	"syscall"
    24  
    25  	_ "github.com/danbrough/mobile/bind/java"
    26  	_seq "github.com/danbrough/mobile/bind/seq"
    27  )
    28  
    29  func init() {
    30  	_seq.FinalizeRef = func(ref *_seq.Ref) {
    31  		refnum := ref.Bind_Num
    32  		if refnum < 0 {
    33  			panic(fmt.Sprintf("not a foreign ref: %d", refnum))
    34  		}
    35  		C.go_seq_dec_ref(C.int32_t(refnum))
    36  	}
    37  	_seq.IncForeignRef = func(refnum int32) {
    38  		if refnum < 0 {
    39  			panic(fmt.Sprintf("not a foreign ref: %d", refnum))
    40  		}
    41  		C.go_seq_inc_ref(C.int32_t(refnum))
    42  	}
    43  	// Workaround for issue #17393.
    44  	signal.Notify(make(chan os.Signal), syscall.SIGPIPE)
    45  }
    46  
    47  // IncGoRef is called by foreign code to pin a Go object while its refnum is crossing
    48  // the language barrier
    49  //export IncGoRef
    50  func IncGoRef(refnum C.int32_t) {
    51  	_seq.Inc(int32(refnum))
    52  }
    53  
    54  func main() {}