5c3e18f08f
test.bash is a simple script that builds the c-shared library from test_main.go, compiles SeqTest.m and the objective-c bindings of testpkg (testpkg/objc_testpkg/GoTestpkg.*), and runs the output. Eventually this will be replaced with coed that runs gomobile bind & xcodebuild. The code under testpkg/go_testpkg and testpkg/objc_testpkg is the output of gobind (now manually-generated). I am adding it to repo now in order to get the testpkg/objc_tstpkg reviewed. Eventually, this will be removed from the repo. Change-Id: I8d6af3732337992af922cb4615a63f385e19d489 Reviewed-on: https://go-review.googlesource.com/9826 Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
79 lines
1.7 KiB
Go
79 lines
1.7 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package objc
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/*
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#cgo LDFLAGS: -framework Foundation
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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*/
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import "C"
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import (
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"fmt"
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"unsafe"
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"golang.org/x/mobile/bind/seq"
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)
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const debug = true
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const maxSliceLen = 1<<31 - 1
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//export Send
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func Send(descriptor string, code int, req *C.uint8_t, reqlen C.size_t, res **C.uint8_t, reslen *C.size_t) {
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fn := seq.Registry[descriptor][code]
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if fn == nil {
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panic(fmt.Sprintf("invalid descriptor(%s) and code(0x%x)", descriptor, code))
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}
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var in, out *seq.Buffer
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if reqlen > 0 {
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in = &seq.Buffer{Data: (*[maxSliceLen]byte)(unsafe.Pointer(req))[:reqlen]}
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}
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if reslen != nil {
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out = new(seq.Buffer)
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}
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fn(out, in)
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if out != nil {
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// sender does not expect any results.
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seqToBuf(res, reslen, out)
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}
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}
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func seqToBuf(bufptr **C.uint8_t, lenptr *C.size_t, buf *seq.Buffer) {
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if debug {
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fmt.Printf("seqToBuf tag 1, len(buf.Data)=%d, *lenptr=%d\n", len(buf.Data), *lenptr)
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}
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if len(buf.Data) == 0 {
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*lenptr = 0
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return
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}
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if len(buf.Data) > int(*lenptr) {
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// TODO(crawshaw): realloc
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C.free(unsafe.Pointer(*bufptr))
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m := C.malloc(C.size_t(len(buf.Data)))
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if uintptr(m) == 0 {
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panic(fmt.Sprintf("malloc failed, size=%d", len(buf.Data)))
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}
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*bufptr = (*C.uint8_t)(m)
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*lenptr = C.size_t(len(buf.Data))
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}
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C.memcpy(unsafe.Pointer(*bufptr), unsafe.Pointer(&buf.Data[0]), C.size_t(len(buf.Data)))
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}
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func init() {
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// TODO: seq.FinalizeRef, seq.Transact.
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seq.EncString = func(out *seq.Buffer, v string) {
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out.WriteUTF8(v)
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}
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seq.DecString = func(in *seq.Buffer) string {
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return in.ReadUTF8()
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}
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}
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