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jsonrpc: add spdk_jsonrpc_send_error_response_fmt

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To help printing more descriptive error message add fmt version.

Change-Id: I8d383d76d0f6e6f2882160fb8fd8459ec8f5495a
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/401025
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Pawel Wodkowski 2018-02-22 15:18:04 +01:00 committed by Jim Harris
parent a5cfd43036
commit 97cb1713ff
2 changed files with 45 additions and 0 deletions
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14
include/spdk/jsonrpc.h
View File

@ -107,6 +107,20 @@ void spdk_jsonrpc_end_result(struct spdk_jsonrpc_request *request, struct spdk_j
void spdk_jsonrpc_send_error_response(struct spdk_jsonrpc_request *request,
int error_code, const char *msg);
/**
* Send an error response to a JSON-RPC request.
*
* \param request JSON-RPC request to respond to.
* \param error_code Integer error code to return (may be one of the SPDK_JSONRPC_ERROR_ errors,
* or a custom error code).
* \param fmt Printf-like format string.
*
* This is shorthand for printf() + spdk_jsonrpc_send_error_response().
*/
void spdk_jsonrpc_send_error_response_fmt(struct spdk_jsonrpc_request *request,
int error_code, const char *fmt, ...) __attribute__((format(printf, 3, 4)));
#ifdef __cplusplus
}
#endif

31
lib/jsonrpc/jsonrpc_server.c
View File

@ -318,4 +318,35 @@ spdk_jsonrpc_send_error_response(struct spdk_jsonrpc_request *request,
end_response(request, w);
}
void
spdk_jsonrpc_send_error_response_fmt(struct spdk_jsonrpc_request *request,
int error_code, const char *fmt, ...)
{
struct spdk_json_write_ctx *w;
va_list args;
if (request->id.type == SPDK_JSON_VAL_INVALID) {
/* For error responses, if id is missing, explicitly respond with "id": null. */
request->id.type = SPDK_JSON_VAL_NULL;
}
w = begin_response(request);
if (w == NULL) {
free(request);
return;
}
spdk_json_write_name(w, "error");
spdk_json_write_object_begin(w);
spdk_json_write_name(w, "code");
spdk_json_write_int32(w, error_code);
spdk_json_write_name(w, "message");
va_start(args, fmt);
spdk_json_write_string_fmt_v(w, fmt, args);
va_end(args);
spdk_json_write_object_end(w);
end_response(request, w);
}
SPDK_LOG_REGISTER_COMPONENT("rpc", SPDK_LOG_RPC)