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Remove unneeded pointers from FfiResult types

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This commit is contained in:
Steve Myers 2021-07-03 19:07:49 -07:00
parent 62f18bdc2c
commit d00cc73261
12 changed files with 264 additions and 241 deletions
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15
bdk-kotlin/jvm/src/main/kotlin/org/bitcoindevkit/bdk/FfiResult.kt
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@ -1,15 +0,0 @@
package org.bitcoindevkit.bdk
import com.sun.jna.Pointer
import com.sun.jna.Structure
abstract class FfiResult : Structure {
constructor() : super()
constructor(pointer: Pointer) : super(pointer)
@JvmField
var ok: Pointer? = null
@JvmField
var err: Pointer? = null
}

108
bdk-kotlin/jvm/src/main/kotlin/org/bitcoindevkit/bdk/LibJna.kt
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@ -6,15 +6,21 @@ interface LibJna : Library {
// typedef struct {
//
// char * * ok;
// char * ok;
//
// char * * err;
// char * err;
//
// } FfiResult_char_ptr_t;
open class FfiResult_char_ptr_t : FfiResult() {
//} FfiResult_char_ptr_t;
open class FfiResult_char_ptr_t : Structure() {
class ByValue : FfiResult_char_ptr_t(), Structure.ByValue
class ByReference : FfiResult_char_ptr_t(), Structure.ByReference
@JvmField
var ok: String = ""
@JvmField
var err: String = ""
override fun getFieldOrder() = listOf("ok", "err")
}
@ -24,21 +30,27 @@ interface LibJna : Library {
// typedef struct {
//
// void * ok;
// int32_t ok;
//
// char * * err;
// char * err;
//
// } FfiResult_void_t;
open class FfiResult_void_t : FfiResult() {
class ByValue : FfiResult_void_t(), Structure.ByValue
class ByReference : FfiResult_void_t(), Structure.ByReference
//} FfiResult_int32_t;
open class FfiResult_int32_t : Structure() {
class ByValue : FfiResult_int32_t(), Structure.ByValue
class ByReference : FfiResult_int32_t(), Structure.ByReference
@JvmField
var ok: Int = 0
@JvmField
var err: String = ""
override fun getFieldOrder() = listOf("ok", "err")
}
// void free_void_result (
// FfiResult_void_t void_result);
fun free_void_result(void_result: FfiResult_void_t.ByValue)
// void free_int_result (
// FfiResult_int32_t int_result);
fun free_int_result(void_result: FfiResult_int32_t.ByValue)
// void free_string (
// char * string);
@ -82,17 +94,23 @@ interface LibJna : Library {
//
// OpaqueWallet_t * ok;
//
// char * * err;
// char * err;
//
// } FfiResult_OpaqueWallet_t;
open class FfiResult_OpaqueWallet_t : FfiResult() {
class ByValue : FfiResult_OpaqueWallet_t(), Structure.ByValue
class ByReference : FfiResult_OpaqueWallet_t(), Structure.ByReference
// } FfiResult_OpaqueWallet_ptr_t;
open class FfiResult_OpaqueWallet_ptr_t : Structure() {
class ByValue : FfiResult_OpaqueWallet_ptr_t(), Structure.ByValue
class ByReference : FfiResult_OpaqueWallet_ptr_t(), Structure.ByReference
@JvmField
var ok: OpaqueWallet_t = OpaqueWallet_t()
@JvmField
var err: String = ""
override fun getFieldOrder() = listOf("ok", "err")
}
// FfiResult_OpaqueWallet_t new_wallet_result (
// FfiResult_OpaqueWallet_ptr_t new_wallet_result (
// char const * descriptor,
// char const * change_descriptor,
// BlockchainConfig_t const * blockchain_config,
@ -102,11 +120,11 @@ interface LibJna : Library {
changeDescriptor: String?,
blockchainConfig: BlockchainConfig_t,
databaseConfig: DatabaseConfig_t,
): FfiResult_OpaqueWallet_t.ByValue
): FfiResult_OpaqueWallet_ptr_t.ByValue
// void free_wallet_result (
// FfiResult_OpaqueWallet_t wallet_result);
fun free_wallet_result(wallet_result: FfiResult_OpaqueWallet_t.ByValue)
// FfiResult_OpaqueWallet_ptr_t wallet_result);
fun free_wallet_result(wallet_result: FfiResult_OpaqueWallet_ptr_t.ByValue)
// typedef struct {
//
@ -155,19 +173,10 @@ interface LibJna : Library {
// uint16_t keychain;
//
// } LocalUtxo_t;
open class LocalUtxo_t : Structure {
constructor() : super()
constructor(pointer: Pointer) : super(pointer)
class ByValue : LocalUtxo_t, Structure.ByValue {
constructor() : super()
constructor(pointer: Pointer) : super(pointer)
}
class ByReference : LocalUtxo_t, Structure.ByReference {
constructor() : super()
constructor(pointer: Pointer) : super(pointer)
}
open class LocalUtxo_t : Structure() {
class ByValue : LocalUtxo_t(), Structure.ByValue
class ByReference : LocalUtxo_t(), Structure.ByReference
@JvmField
var outpoint: OutPoint_t? = null
@ -190,19 +199,10 @@ interface LibJna : Library {
// size_t cap;
//
// } Vec_LocalUtxo_t;
open class Vec_LocalUtxo_t : Structure {
constructor() : super()
constructor(pointer: Pointer) : super(pointer)
class ByReference : Vec_LocalUtxo_t, Structure.ByReference {
constructor() : super()
constructor(pointer: Pointer) : super(pointer)
}
class ByValue : Vec_LocalUtxo_t, Structure.ByValue {
constructor() : super()
constructor(pointer: Pointer) : super(pointer)
}
open class Vec_LocalUtxo_t : Structure() {
class ByReference : Vec_LocalUtxo_t(), Structure.ByReference
class ByValue : Vec_LocalUtxo_t(), Structure.ByValue
@JvmField
var ptr: LocalUtxo_t.ByReference? = null
@ -220,9 +220,9 @@ interface LibJna : Library {
//
// Vec_LocalUtxo_t ok;
//
// char * * err;
// char * err;
//
// } FfiResultVec_LocalUtxo_t;
// } FfiResult_Vec_LocalUtxo_t;
open class FfiResultVec_LocalUtxo_t : Structure() {
class ByValue : FfiResultVec_LocalUtxo_t(), Structure.ByValue
@ -232,18 +232,18 @@ interface LibJna : Library {
var ok: Vec_LocalUtxo_t = Vec_LocalUtxo_t()
@JvmField
var err: Pointer? = null
var err: String = ""
override fun getFieldOrder() = listOf("ok", "err")
}
// void free_unspent_result (
// FfiResultVec_LocalUtxo_t unspent_result);
// FfiResult_Vec_LocalUtxo_t unspent_result);
fun free_unspent_result(unspent_result: FfiResultVec_LocalUtxo_t.ByValue)
// FfiResult_void_t sync_wallet (
// FfiResult_int32_t sync_wallet (
// OpaqueWallet_t const * opaque_wallet);
fun sync_wallet(opaque_wallet: OpaqueWallet_t): FfiResult_void_t.ByValue
fun sync_wallet(opaque_wallet: OpaqueWallet_t): FfiResult_int32_t.ByValue
// FfiResult_char_ptr_t new_address (
// OpaqueWallet_t const * opaque_wallet);

41
bdk-kotlin/jvm/src/main/kotlin/org/bitcoindevkit/bdk/types/Result.kt
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@ -1,41 +0,0 @@
package org.bitcoindevkit.bdk.types
import com.sun.jna.Pointer
import org.bitcoindevkit.bdk.FfiResult
import org.bitcoindevkit.bdk.JnaError
import org.bitcoindevkit.bdk.JnaException
import org.bitcoindevkit.bdk.LibBase
import org.slf4j.Logger
import org.slf4j.LoggerFactory
abstract class Result<T : FfiResult, RT : Any>(private val ffiResult: T): LibBase() {
protected open val log: Logger = LoggerFactory.getLogger(Result::class.java)
protected abstract fun getOkValue(pointer: Pointer): RT
protected abstract fun freeResult(ffiResult: T)
fun value(): RT {
val err = ffiResult.err
val ok = ffiResult.ok
when {
err != null -> {
val errString = err.getPointer(0).getString(0)
log.error("JnaError: $errString")
throw JnaException(JnaError.valueOf(errString))
}
ok != null -> {
return getOkValue(ok)
}
else -> {
throw JnaException(JnaError.Generic)
}
}
}
protected fun finalize() {
freeResult(ffiResult)
log.debug("$ffiResult freed")
}
}

31
bdk-kotlin/jvm/src/main/kotlin/org/bitcoindevkit/bdk/types/StringResult.kt
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@ -1,16 +1,33 @@
package org.bitcoindevkit.bdk.types
import com.sun.jna.Pointer
import org.bitcoindevkit.bdk.JnaError
import org.bitcoindevkit.bdk.JnaException
import org.bitcoindevkit.bdk.LibBase
import org.bitcoindevkit.bdk.LibJna
import org.slf4j.Logger
import org.slf4j.LoggerFactory
class StringResult constructor(stringResultPtr: LibJna.FfiResult_char_ptr_t.ByValue) :
Result<LibJna.FfiResult_char_ptr_t.ByValue, String>(stringResultPtr) {
class StringResult constructor(private val ffiResultCharPtrT: LibJna.FfiResult_char_ptr_t.ByValue) :
LibBase() {
override fun getOkValue(pointer: Pointer): String {
return pointer.getPointer(0).getString(0)
private val log: Logger = LoggerFactory.getLogger(StringResult::class.java)
fun value(): String {
val err = ffiResultCharPtrT.err
val ok = ffiResultCharPtrT.ok
when {
err.isNotEmpty() -> {
log.error("JnaError: $err")
throw JnaException(JnaError.valueOf(err))
}
else -> {
return ok
}
}
}
override fun freeResult(ffiResult: LibJna.FfiResult_char_ptr_t.ByValue) {
libJna.free_string_result(ffiResult)
protected fun finalize() {
libJna.free_string_result(ffiResultCharPtrT)
log.debug("$ffiResultCharPtrT freed")
}
}

31
bdk-kotlin/jvm/src/main/kotlin/org/bitcoindevkit/bdk/types/VoidResult.kt
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@ -1,16 +1,33 @@
package org.bitcoindevkit.bdk.types
import com.sun.jna.Pointer
import org.bitcoindevkit.bdk.JnaError
import org.bitcoindevkit.bdk.JnaException
import org.bitcoindevkit.bdk.LibBase
import org.bitcoindevkit.bdk.LibJna
import org.slf4j.Logger
import org.slf4j.LoggerFactory
class VoidResult constructor(voidResultPtr: LibJna.FfiResult_void_t.ByValue) :
Result<LibJna.FfiResult_void_t.ByValue, Unit>(voidResultPtr) {
class VoidResult constructor(private val ffiResultInt32T: LibJna.FfiResult_int32_t.ByValue) :
LibBase() {
override fun getOkValue(pointer: Pointer) {
// No value
private val log: Logger = LoggerFactory.getLogger(VoidResult::class.java)
fun value(): Unit {
val err = ffiResultInt32T.err
//val ok = ffiResultInt32T.ok
when {
err.isNotEmpty() -> {
log.error("JnaError: $err")
throw JnaException(JnaError.valueOf(err))
}
else -> {
return
}
}
}
override fun freeResult(ffiResult: LibJna.FfiResult_void_t.ByValue) {
libJna.free_void_result(ffiResult)
protected fun finalize() {
libJna.free_int_result(ffiResultInt32T)
log.debug("$ffiResultInt32T freed")
}
}

19
bdk-kotlin/jvm/src/main/kotlin/org/bitcoindevkit/bdk/wallet/VecLocalUtxoResult.kt
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@ -7,19 +7,18 @@ import org.bitcoindevkit.bdk.LibJna
import org.slf4j.Logger
import org.slf4j.LoggerFactory
class VecLocalUtxoResult(private val ffiResult: LibJna.FfiResultVec_LocalUtxo_t.ByValue) :
class VecLocalUtxoResult(private val ffiResultVecLocalUtxoT: LibJna.FfiResultVec_LocalUtxo_t.ByValue) :
LibBase() {
protected open val log: Logger = LoggerFactory.getLogger(VecLocalUtxoResult::class.java)
private val log: Logger = LoggerFactory.getLogger(VecLocalUtxoResult::class.java)
fun value(): Array<LibJna.LocalUtxo_t.ByReference> {
val err = ffiResult.err
val ok = ffiResult.ok
val err = ffiResultVecLocalUtxoT.err
val ok = ffiResultVecLocalUtxoT.ok
when {
err != null -> {
val errString = err.getPointer(0).getString(0)
log.error("JnaError: $errString")
throw JnaException(JnaError.valueOf(errString))
err .isNotEmpty() -> {
log.error("JnaError: $err")
throw JnaException(JnaError.valueOf(err))
}
else -> {
val first = ok.ptr!!
@ -29,7 +28,7 @@ class VecLocalUtxoResult(private val ffiResult: LibJna.FfiResultVec_LocalUtxo_t.
}
protected fun finalize() {
libJna.free_unspent_result(ffiResult)
log.debug("$ffiResult freed")
libJna.free_unspent_result(ffiResultVecLocalUtxoT)
log.debug("$ffiResultVecLocalUtxoT freed")
}
}

32
bdk-kotlin/jvm/src/main/kotlin/org/bitcoindevkit/bdk/wallet/WalletResult.kt
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@ -1,17 +1,33 @@
package org.bitcoindevkit.bdk.wallet
import com.sun.jna.Pointer
import org.bitcoindevkit.bdk.JnaError
import org.bitcoindevkit.bdk.JnaException
import org.bitcoindevkit.bdk.LibBase
import org.bitcoindevkit.bdk.LibJna
import org.bitcoindevkit.bdk.types.Result
import org.slf4j.Logger
import org.slf4j.LoggerFactory
class WalletResult constructor(walletResultPtr: LibJna.FfiResult_OpaqueWallet_t.ByValue) :
Result<LibJna.FfiResult_OpaqueWallet_t.ByValue, LibJna.OpaqueWallet_t>(walletResultPtr) {
class WalletResult constructor(private val ffiResultOpaqueWalletPtrT: LibJna.FfiResult_OpaqueWallet_ptr_t.ByValue) :
LibBase() {
override fun getOkValue(pointer: Pointer): LibJna.OpaqueWallet_t {
return LibJna.OpaqueWallet_t(pointer)
private val log: Logger = LoggerFactory.getLogger(WalletResult::class.java)
fun value(): LibJna.OpaqueWallet_t {
val err = ffiResultOpaqueWalletPtrT.err
val ok = ffiResultOpaqueWalletPtrT.ok
when {
err.isNotEmpty() -> {
log.error("JnaError: $err")
throw JnaException(JnaError.valueOf(err))
}
else -> {
return ok
}
}
}
override fun freeResult(ffiResult: LibJna.FfiResult_OpaqueWallet_t.ByValue) {
libJna.free_wallet_result(ffiResult)
protected fun finalize() {
libJna.free_wallet_result(ffiResultOpaqueWalletPtrT)
log.debug("$ffiResultOpaqueWalletPtrT freed")
}
}

58
cc/bdk_ffi.h
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@ -14,21 +14,8 @@
extern "C" {
#endif
#include <stddef.h>
#include <stdint.h>
typedef struct BlockchainConfig BlockchainConfig_t;
BlockchainConfig_t * new_electrum_config (
char const * url,
char const * socks5,
int16_t retry,
int16_t timeout);
void free_blockchain_config (
BlockchainConfig_t * blockchain_config);
typedef struct DatabaseConfig DatabaseConfig_t;
typedef struct OpaqueWallet OpaqueWallet_t;
@ -37,35 +24,39 @@ typedef struct {
OpaqueWallet_t * ok;
char * * err;
char * err;
} FfiResult_OpaqueWallet_t;
} FfiResult_OpaqueWallet_ptr_t;
FfiResult_OpaqueWallet_t new_wallet_result (
FfiResult_OpaqueWallet_ptr_t new_wallet_result (
char const * descriptor,
char const * change_descriptor,
BlockchainConfig_t const * blockchain_config,
DatabaseConfig_t const * database_config);
void free_wallet_result (
FfiResult_OpaqueWallet_t wallet_result);
FfiResult_OpaqueWallet_ptr_t wallet_result);
#include <stddef.h>
#include <stdint.h>
typedef struct {
void * ok;
int32_t ok;
char * * err;
char * err;
} FfiResult_void_t;
} FfiResult_int32_t;
FfiResult_void_t sync_wallet (
FfiResult_int32_t sync_wallet (
OpaqueWallet_t const * opaque_wallet);
typedef struct {
char * * ok;
char * ok;
char * * err;
char * err;
} FfiResult_char_ptr_t;
@ -115,15 +106,24 @@ typedef struct {
Vec_LocalUtxo_t ok;
char * * err;
char * err;
} FfiResultVec_LocalUtxo_t;
} FfiResult_Vec_LocalUtxo_t;
FfiResultVec_LocalUtxo_t list_unspent (
FfiResult_Vec_LocalUtxo_t list_unspent (
OpaqueWallet_t const * opaque_wallet);
void free_unspent_result (
FfiResultVec_LocalUtxo_t unspent_result);
FfiResult_Vec_LocalUtxo_t unspent_result);
BlockchainConfig_t * new_electrum_config (
char const * url,
char const * socks5,
int16_t retry,
int16_t timeout);
void free_blockchain_config (
BlockchainConfig_t * blockchain_config);
DatabaseConfig_t * new_memory_config (void);
@ -137,8 +137,8 @@ void free_database_config (
void free_string_result (
FfiResult_char_ptr_t string_result);
void free_void_result (
FfiResult_void_t void_result);
void free_int_result (
FfiResult_int32_t int_result);
/** \brief
* Free a Rust-allocated string

104
cc/bdk_ffi_test.c
View File

@ -13,14 +13,14 @@ int main (int argc, char const * const argv[])
DatabaseConfig_t *db_config = new_memory_config();
// new wallet with bad descriptor
FfiResult_OpaqueWallet_t wallet_result = new_wallet_result("bad","bad",bc_config,db_config);
assert(wallet_result.err != NULL);
FfiResult_OpaqueWallet_ptr_t wallet_result = new_wallet_result("bad","bad",bc_config,db_config);
assert(strlen(wallet_result.err) > 0);
assert(wallet_result.ok == NULL);
free_blockchain_config(bc_config);
free_database_config(db_config);
char *wallet_err = *wallet_result.err;
char *wallet_err = wallet_result.err;
assert(wallet_err != NULL);
assert( 0 == strcmp(wallet_err,"Descriptor") );
// printf("wallet err: %s\n", wallet_err);
@ -37,8 +37,9 @@ int main (int argc, char const * const argv[])
DatabaseConfig_t *db_config = new_memory_config();
// new wallet
FfiResult_OpaqueWallet_t wallet_result = new_wallet_result(desc,change,bc_config,db_config);
assert(wallet_result.err == NULL);
FfiResult_OpaqueWallet_ptr_t wallet_result = new_wallet_result(desc,change,bc_config,db_config);
// printf("wallet_result.err = %ld\n", strlen(wallet_result.err));
assert(strlen(wallet_result.err) == 0);
assert(wallet_result.ok != NULL);
free_blockchain_config(bc_config);
@ -46,35 +47,35 @@ int main (int argc, char const * const argv[])
OpaqueWallet_t *wallet = wallet_result.ok;
// test sync wallet
FfiResult_void_t sync_result = sync_wallet(wallet);
assert(sync_result.ok != NULL);
assert(sync_result.err == NULL);
free_void_result(sync_result);
// sync wallet
FfiResult_int32_t sync_result = sync_wallet(wallet);
assert(sync_result.ok == 0);
assert(strlen(sync_result.err) == 0);
free_int_result(sync_result);
// test new address
FfiResult_char_ptr_t address_result1 = new_address(wallet);
assert(address_result1.ok != NULL);
assert(address_result1.err == NULL);
// printf("address1 = %s\n", *address_result1.ok);
assert( 0 == strcmp(*address_result1.ok,"tb1qgkhp034fyxeta00h0nne9tzfm0vsxq4prduzxp"));
free_string_result(address_result1);
// new address
FfiResult_char_ptr_t address1_result = new_address(wallet);
assert(address1_result.ok != NULL);
assert(strlen(address1_result.err) == 0);
// printf("address1 = %s\n", *address1_result.ok);
assert( 0 == strcmp(address1_result.ok,"tb1qgkhp034fyxeta00h0nne9tzfm0vsxq4prduzxp"));
free_string_result(address1_result);
FfiResult_char_ptr_t address_result2 = new_address(wallet);
assert(address_result2.ok != NULL);
assert(address_result2.err == NULL);
// printf("address2 = %s\n", *address_result2.ok);
assert( 0 == strcmp(*address_result2.ok,"tb1qd6u9q327sru2ljvwzdtfrdg36sapax7udz97wf"));
free_string_result(address_result2);
FfiResult_char_ptr_t address2_result = new_address(wallet);
assert(address2_result.ok != NULL);
assert(strlen(address2_result.err) == 0);
// printf("address2 = %s\n", *address2_result.ok);
assert( 0 == strcmp(address2_result.ok,"tb1qd6u9q327sru2ljvwzdtfrdg36sapax7udz97wf"));
free_string_result(address2_result);
// test free_wallet
// free_wallet
free_wallet_result(wallet_result);
// verify free_wallet after free_wallet fails (core dumped)
//// free_wallet_result(wallet_result);
// verify sync_wallet after free_wallet fails (core dumped)
//// FfiResult_void_t sync_result2 = sync_wallet(wallet);
//// FfiResult_int32_t sync_result2 = sync_wallet(wallet);
}
// test get unspent utxos
@ -86,8 +87,8 @@ int main (int argc, char const * const argv[])
DatabaseConfig_t *db_config = new_memory_config();
// new wallet
FfiResult_OpaqueWallet_t wallet_result = new_wallet_result(desc,change,bc_config,db_config);
assert(wallet_result.err == NULL);
FfiResult_OpaqueWallet_ptr_t wallet_result = new_wallet_result(desc,change,bc_config,db_config);
assert(strlen(wallet_result.err) == 0);
assert(wallet_result.ok != NULL);
free_blockchain_config(bc_config);
@ -95,16 +96,16 @@ int main (int argc, char const * const argv[])
OpaqueWallet_t *wallet = wallet_result.ok;
// test sync wallet
FfiResult_void_t sync_result = sync_wallet(wallet);
assert(sync_result.ok != NULL);
assert(sync_result.err == NULL);
free_void_result(sync_result);
// sync wallet
FfiResult_int32_t sync_result = sync_wallet(wallet);
assert(sync_result.ok == 0);
assert(strlen(sync_result.err) == 0);
free_int_result(sync_result);
// list unspent
FfiResultVec_LocalUtxo_t unspent_result = list_unspent(wallet);
FfiResult_Vec_LocalUtxo_t unspent_result = list_unspent(wallet);
assert(unspent_result.ok.len == 7);
assert(unspent_result.err == NULL);
assert(strlen(unspent_result.err) == 0);
LocalUtxo_t * unspent_ptr = unspent_result.ok.ptr;
for (int i = 0; i < unspent_result.ok.len; i++) {
@ -123,6 +124,41 @@ int main (int argc, char const * const argv[])
free_unspent_result(unspent_result);
free_wallet_result(wallet_result);
}
// test balance
/*{
char const *desc = "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/0/*)";
char const *change = "wpkh([c258d2e4/84h/1h/0h]tpubDDYkZojQFQjht8Tm4jsS3iuEmKjTiEGjG6KnuFNKKJb5A6ZUCUZKdvLdSDWofKi4ToRCwb9poe1XdqfUnP4jaJjCB2Zwv11ZLgSbnZSNecE/1/*)";
BlockchainConfig_t *bc_config = new_electrum_config("ssl://electrum.blockstream.info:60002", NULL, 5, 30);
DatabaseConfig_t *db_config = new_memory_config();
// new wallet
FfiResult_OpaqueWallet_ptr_t wallet_result = new_wallet_result(desc,change,bc_config,db_config);
assert(wallet_result.err == NULL);
assert(wallet_result.ok != NULL);
free_blockchain_config(bc_config);
free_database_config(db_config);
OpaqueWallet_t *wallet = wallet_result.ok;
// sync wallet
FfiResult_int32_t sync_result = sync_wallet(wallet);
assert(sync_result.ok == 0);
assert(sync_result.err == NULL);
free_int_result(sync_result);
// get balance
FfiResultT_uint64_t balance_result = balance(wallet);
assert(balance_result.err == NULL);
printf("balance = %lu\n", balance_result.ok);
assert(balance_result.ok > 0);
// free balance and wallet results
free_u64_result(balance_result);
free_wallet_result(wallet_result);
}*/
return EXIT_SUCCESS;
}

15
src/types.rs
View File

@ -5,15 +5,8 @@ use safer_ffi::char_p::char_p_boxed;
#[repr(C)]
#[derive(Debug)]
pub struct FfiResult<T> {
pub ok: Option<repr_c::Box<T>>,
pub err: Option<repr_c::Box<char_p_boxed>>,
}
#[derive_ReprC]
#[repr(C)]
pub struct FfiResultVec<T> {
pub ok: repr_c::Vec<T>,
pub err: Option<repr_c::Box<char_p_boxed>>,
pub ok: T,
pub err: char_p_boxed,
}
#[ffi_export]
@ -22,8 +15,8 @@ fn free_string_result(string_result: FfiResult<char_p_boxed>) {
}
#[ffi_export]
fn free_void_result(void_result: FfiResult<()>) {
drop(void_result)
fn free_int_result(int_result: FfiResult<i32>) {
drop(int_result)
}
// TODO do we need this? remove?

47
src/wallet/mod.rs
View File

@ -13,7 +13,8 @@ use blockchain::BlockchainConfig;
use database::DatabaseConfig;
use crate::error::get_name;
use crate::types::{FfiResult, FfiResultVec};
use crate::types::FfiResult;
use std::ffi::CString;
mod blockchain;
mod database;
@ -32,7 +33,7 @@ fn new_wallet_result(
change_descriptor: Option<char_p_ref>,
blockchain_config: &BlockchainConfig,
database_config: &DatabaseConfig,
) -> FfiResult<OpaqueWallet> {
) -> FfiResult<Option<Box<OpaqueWallet>>> {
let descriptor = descriptor.to_string();
let change_descriptor = change_descriptor.map(|s| s.to_string());
let bc_config = &blockchain_config.raw;
@ -42,11 +43,11 @@ fn new_wallet_result(
match wallet_result {
Ok(w) => FfiResult {
ok: Some(Box::new(OpaqueWallet { raw: w })),
err: None,
err: char_p_boxed::from(CString::default()),
},
Err(e) => FfiResult {
ok: None,
err: Some(Box::new(char_p_boxed::try_from(get_name(&e)).unwrap())),
err: char_p_boxed::try_from(get_name(&e)).unwrap(),
},
}
}
@ -69,23 +70,23 @@ fn new_wallet(
}
#[ffi_export]
fn free_wallet_result(wallet_result: FfiResult<OpaqueWallet>) {
fn free_wallet_result(wallet_result: FfiResult<Option<Box<OpaqueWallet>>>) {
drop(wallet_result);
}
// wallet operations
#[ffi_export]
fn sync_wallet(opaque_wallet: &OpaqueWallet) -> FfiResult<()> {
let void_result = opaque_wallet.raw.sync(log_progress(), Some(100));
match void_result {
Ok(v) => FfiResult {
ok: Some(Box::new(v)),
err: None,
fn sync_wallet(opaque_wallet: &OpaqueWallet) -> FfiResult<i32> {
let int_result = opaque_wallet.raw.sync(log_progress(), Some(100));
match int_result {
Ok(_v) => FfiResult {
ok: 0,
err: char_p_boxed::from(CString::default()),
},
Err(e) => FfiResult {
ok: None,
err: Some(Box::new(char_p_boxed::try_from(get_name(&e)).unwrap())),
ok: -1,
err: char_p_boxed::try_from(get_name(&e)).unwrap(),
},
}
}
@ -96,37 +97,37 @@ fn new_address(opaque_wallet: &OpaqueWallet) -> FfiResult<char_p_boxed> {
let string_result = new_address.map(|a| a.to_string());
match string_result {
Ok(a) => FfiResult {
ok: Some(Box::new(char_p_boxed::try_from(a).unwrap())),
err: None,
ok: char_p_boxed::try_from(a).unwrap(),
err: char_p_boxed::from(CString::default()),
},
Err(e) => FfiResult {
ok: None,
err: Some(Box::new(char_p_boxed::try_from(get_name(&e)).unwrap())),
ok: char_p_boxed::from(CString::default()),
err: char_p_boxed::try_from(get_name(&e)).unwrap(),
},
}
}
#[ffi_export]
fn list_unspent(opaque_wallet: &OpaqueWallet) -> FfiResultVec<LocalUtxo> {
fn list_unspent(opaque_wallet: &OpaqueWallet) -> FfiResult<repr_c::Vec<LocalUtxo>> {
let unspent_result = opaque_wallet.raw.list_unspent();
match unspent_result {
Ok(v) => FfiResultVec {
Ok(v) => FfiResult {
ok: {
let ve: Vec<LocalUtxo> = v.iter().map(|lu| LocalUtxo::from(lu)).collect();
repr_c::Vec::from(ve)
},
err: None,
err: char_p_boxed::from(CString::default()),
},
Err(e) => FfiResultVec {
Err(e) => FfiResult {
ok: repr_c::Vec::EMPTY,
err: Some(Box::new(char_p_boxed::try_from(get_name(&e)).unwrap())),
err: char_p_boxed::try_from(get_name(&e)).unwrap(),
},
}
}
#[ffi_export]
fn free_unspent_result(unspent_result: FfiResultVec<LocalUtxo>) {
fn free_unspent_result(unspent_result: FfiResult<repr_c::Vec<LocalUtxo>>) {
drop(unspent_result)
}

4
test.sh
View File

@ -6,8 +6,8 @@ cargo test --features c-headers -- generate_headers
# cc
export LD_LIBRARY_PATH=`pwd`/target/debug
valgrind --leak-check=full --show-leak-kinds=all cc/bdk_ffi_test
#cc/bdk_ffi_test
#valgrind --leak-check=full --show-leak-kinds=all cc/bdk_ffi_test
cc/bdk_ffi_test
# bdk-kotlin
(cd bdk-kotlin && gradle test)