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lightningd: fix spurious leak report.

Browse Source 
We can (and probably should!) allocate this off tmpctx rather than
off the response.

Also, json_add_invoice doesn't actually match the normal pattern,
so fix that.


```
E           ValueError: 
E           Node errors:
E           Global errors:
E            - Node /tmp/ltests-_vbj8az8/test_pay_fail_unconfirmed_channel_1/lightning-2/ has memory leaks: [
E               {
E                   "backtrace": [
E                       "ccan/ccan/tal/tal.c:442 (tal_alloc_)",
E                       "wallet/invoices.c:81 (wallet_stmt2invoice_details)",
E                       "wallet/invoices.c:697 (invoices_get_details)",
E                       "wallet/wallet.c:2946 (wallet_invoice_details)",
E                       "lightningd/invoice.c:1296 (json_add_invoices)",
E                       "lightningd/invoice.c:1370 (json_listinvoices)",
E                       "lightningd/jsonrpc.c:625 (command_exec)",
E                       "lightningd/jsonrpc.c:753 (rpc_command_hook_final)",
E                       "lightningd/plugin_hook.c:280 (plugin_hook_call_)",
E                       "lightningd/jsonrpc.c:841 (plugin_hook_call_rpc_command)",
E                       "lightningd/jsonrpc.c:938 (parse_request)",
E                       "lightningd/jsonrpc.c:1035 (read_json)",
E                       "ccan/ccan/io/io.c:59 (next_plan)",
E                       "ccan/ccan/io/io.c:407 (do_plan)",
E                       "ccan/ccan/io/io.c:417 (io_ready)",
E                       "ccan/ccan/io/poll.c:453 (io_loop)",
E                       "lightningd/io_loop_with_timers.c:22 (io_loop_with_timers)",
E                       "lightningd/lightningd.c:1194 (main)",
E                       "../csu/libc-start.c:308 (__libc_start_main)"
E                   ],
E                   "label": "wallet/invoices.c:81:struct invoice_details",
E                   "parents": [
E                       "common/json_stream.c:41:struct json_stream",
E                       "ccan/ccan/io/io.c:91:struct io_conn **NOTLEAK**",
E                       "lightningd/lightningd.c:107:struct lightningd"
E                   ],
E                   "value": "0x55a57a77de08"
E               }
E           ]
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2022-09-14 14:43:01 +09:30
committed by neil saitug
parent a6d4756d08
commit 023a688e3f
1 changed files with 25 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
lightningd/invoice.c
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@@ -35,8 +35,8 @@ static const char *invoice_status_str(const struct invoice_details *inv)
return "unpaid";
}
static void json_add_invoice(struct json_stream *response,
const struct invoice_details *inv)
static void json_add_invoice_fields(struct json_stream *response,
const struct invoice_details *inv)
{
json_add_escaped_string(response, "label", inv->label);
if (inv->invstring)
@@ -76,6 +76,15 @@ static void json_add_invoice(struct json_stream *response,
}
}
static void json_add_invoice(struct json_stream *response,
const char *fieldname,
const struct invoice_details *inv)
{
json_object_start(response, fieldname);
json_add_invoice_fields(response, inv);
json_object_end(response);
}
static struct command_result *tell_waiter(struct command *cmd,
const struct invoice *inv)
{
@@ -85,12 +94,12 @@ static struct command_result *tell_waiter(struct command *cmd,
details = wallet_invoice_details(cmd, cmd->ld->wallet, *inv);
if (details->state == PAID) {
response = json_stream_success(cmd);
json_add_invoice(response, details);
json_add_invoice_fields(response, details);
return command_success(cmd, response);
} else {
response = json_stream_fail(cmd, INVOICE_EXPIRED_DURING_WAIT,
"invoice expired during wait");
json_add_invoice(response, details);
json_add_invoice_fields(response, details);
json_object_end(response);
return command_failed(cmd, response);
}
@@ -1282,21 +1291,16 @@ static void json_add_invoices(struct json_stream *response,
if (label) {
if (wallet_invoice_find_by_label(wallet, &invoice, label)) {
details =
wallet_invoice_details(response, wallet, invoice);
json_object_start(response, NULL);
json_add_invoice(response, details);
json_object_end(response);
wallet_invoice_details(tmpctx, wallet, invoice);
json_add_invoice(response, NULL, details);
}
} else if (payment_hash != NULL) {
if (wallet_invoice_find_by_rhash(wallet, &invoice,
payment_hash)) {
json_object_start(response, NULL);
json_add_invoice(
response,
wallet_invoice_details(response, wallet, invoice));
json_object_end(response);
details =
wallet_invoice_details(tmpctx, wallet, invoice);
json_add_invoice(response, NULL, details);
}
} else {
memset(&it, 0, sizeof(it));
while (wallet_invoice_iterate(wallet, &it)) {
@@ -1309,9 +1313,7 @@ static void json_add_invoices(struct json_stream *response,
details->local_offer_id))
continue;
}
json_object_start(response, NULL);
json_add_invoice(response, details);
json_object_end(response);
json_add_invoice(response, NULL, details);
}
}
}
@@ -1446,7 +1448,7 @@ static struct command_result *json_delinvoice(struct command *cmd,
}
response = json_stream_success(cmd);
json_add_invoice(response, details);
json_add_invoice_fields(response, details);
return command_success(cmd, response);
}
@@ -1629,7 +1631,8 @@ static struct command_result *fail_exists(struct command *cmd,
fatal("Duplicate invoice %s not found any more?",
label->s);
json_add_invoice(data, wallet_invoice_details(cmd, wallet, invoice));
json_add_invoice_fields(data,
wallet_invoice_details(cmd, wallet, invoice));
json_object_end(data);
return command_failed(cmd, data);
@@ -1769,8 +1772,9 @@ static struct command_result *json_createinvoice(struct command *cmd,
}
response = json_stream_success(cmd);
json_add_invoice(response,
wallet_invoice_details(cmd, cmd->ld->wallet, invoice));
json_add_invoice_fields(response,
wallet_invoice_details(cmd, cmd->ld->wallet,
invoice));
return command_success(cmd, response);
}