librclone: add RcloneFreeString function

See PR #5703

Based on initial work by Weng Haoyu (@wengh) in PR #5362
This commit is contained in:
albertony 2021-10-11 00:10:01 +02:00
parent c7329d2ece
commit 85074f8f88
2 changed files with 17 additions and 0 deletions

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@ -31,6 +31,7 @@ For documentation see the Go documentation for:
- [RcloneInitialize](https://pkg.go.dev/github.com/rclone/rclone/librclone#RcloneInitialize)
- [RcloneFinalize](https://pkg.go.dev/github.com/rclone/rclone/librclone#RcloneFinalize)
- [RcloneRPC](https://pkg.go.dev/github.com/rclone/rclone/librclone#RcloneRPC)
- [RcloneFreeString](https://pkg.go.dev/github.com/rclone/rclone/librclone#RcloneFreeString)
### C Example

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@ -20,6 +20,8 @@
package main
/*
#include <stdlib.h>
struct RcloneRPCResult {
char* Output;
int Status;
@ -28,6 +30,8 @@ struct RcloneRPCResult {
import "C"
import (
"unsafe"
"github.com/rclone/rclone/librclone/librclone"
_ "github.com/rclone/rclone/backend/all" // import all backends
@ -79,5 +83,17 @@ func RcloneRPC(method *C.char, input *C.char) (result C.struct_RcloneRPCResult)
return result
}
// RcloneFreeString may be used to free the string returned by RcloneRPC
//
// If the caller has access to the C standard library, the free function can
// normally be called directly instead. In some cases the caller uses a
// runtime library which is not compatible, and then this function can be
// used to release the memory with the same library that allocated it.
//
//export RcloneFreeString
func RcloneFreeString(str *C.char) {
C.free(unsafe.Pointer(str))
}
// do nothing here - necessary for building into a C library
func main() {}