GaoreGo/iconv-go
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Fixes #23 using call_iconv wrapper

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pkowalczyk 2016-02-20 20:24:08 +01:00
parent 5f6a5a4f00
commit 072063d01b
1 changed files with 10 additions and 3 deletions
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13
converter.go
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@ -6,6 +6,13 @@ package iconv
#cgo windows LDFLAGS: -liconv #cgo windows LDFLAGS: -liconv
#include <stdlib.h> #include <stdlib.h>
#include <iconv.h> #include <iconv.h>
// As of GO 1.6 passing a pointer to Go pointer, will lead to panic
// Therofore we use this wrapper function, to avoid passing **char directly from go
size_t call_iconv(iconv_t ctx, char *in, size_t *size_in, char *out, size_t *size_out){
return iconv(ctx, &in, size_in, &out, size_out);
}
*/ */
import "C" import "C"
import "syscall" import "syscall"
@ -80,7 +87,7 @@ func (this *Converter) Convert(input []byte, output []byte) (bytesRead int, byte
inputPointer := (*C.char)(unsafe.Pointer(&input[0])) inputPointer := (*C.char)(unsafe.Pointer(&input[0]))
outputPointer := (*C.char)(unsafe.Pointer(&output[0])) outputPointer := (*C.char)(unsafe.Pointer(&output[0]))
_, err = C.iconv(this.context, &inputPointer, &inputLeft, &outputPointer, &outputLeft) _, err = C.call_iconv(this.context, inputPointer, &inputLeft, outputPointer, &outputLeft)
// update byte counters // update byte counters
bytesRead = len(input) - int(inputLeft) bytesRead = len(input) - int(inputLeft)
@ -89,13 +96,13 @@ func (this *Converter) Convert(input []byte, output []byte) (bytesRead int, byte
// inputPointer will be nil, outputPointer is generated as above // inputPointer will be nil, outputPointer is generated as above
outputPointer := (*C.char)(unsafe.Pointer(&output[0])) outputPointer := (*C.char)(unsafe.Pointer(&output[0]))
_, err = C.iconv(this.context, nil, &inputLeft, &outputPointer, &outputLeft) _, err = C.call_iconv(this.context, nil, &inputLeft, outputPointer, &outputLeft)
// update write byte counter // update write byte counter
bytesWritten = len(output) - int(outputLeft) bytesWritten = len(output) - int(outputLeft)
} else { } else {
// both input and output are zero length, do a shift state reset // both input and output are zero length, do a shift state reset
_, err = C.iconv(this.context, nil, &inputLeft, nil, &outputLeft) _, err = C.call_iconv(this.context, nil, &inputLeft, nil, &outputLeft)
} }
} else { } else {
err = syscall.EBADF err = syscall.EBADF