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in_lib: fix error handling after flb_log_event_decoder_next #7669

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merged 1 commit into from
Aug 31, 2023
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in_lib: fix error handling after flb_log_event_decoder_next #7669

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90 changes: 60 additions & 30 deletions plugins/in_lib/in_lib.c
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,8 @@ static int in_lib_collect(struct flb_input_instance *ins,
struct flb_config *config, void *in_context)
{
int ret;
int dec_ret;
int enc_ret;
int bytes;
int out_size;
int capacity;
Expand Down Expand Up @@ -89,56 +91,84 @@ static int in_lib_collect(struct flb_input_instance *ins,
}
ctx->buf_len = 0;

ret = flb_log_event_decoder_init(&decoder, pack, out_size);
dec_ret = flb_log_event_decoder_init(&decoder, pack, out_size);
if (dec_ret != FLB_EVENT_DECODER_SUCCESS) {
flb_plg_error(ctx->ins,
"Log event decoder initialization error : %s",
flb_log_event_decoder_get_error_description(dec_ret));
flb_free(pack);
flb_pack_state_reset(&ctx->state);
flb_pack_state_init(&ctx->state);
return -1;
}

while ((ret = flb_log_event_decoder_next(
&decoder,
&record)) == FLB_EVENT_DECODER_SUCCESS) {
if (ret == FLB_EVENT_DECODER_SUCCESS) {
ret = flb_log_event_encoder_begin_record(&ctx->log_encoder);
while ((dec_ret = flb_log_event_decoder_next(
&decoder,
&record)) == FLB_EVENT_DECODER_SUCCESS) {
enc_ret = flb_log_event_encoder_begin_record(&ctx->log_encoder);
if (enc_ret != FLB_EVENT_ENCODER_SUCCESS) {
flb_plg_error(ctx->ins,
"flb_log_event_encoder_begin_record error : %s",
flb_log_event_encoder_get_error_description(enc_ret));
flb_log_event_encoder_rollback_record(&ctx->log_encoder);
continue;
}

if (ret == FLB_EVENT_ENCODER_SUCCESS) {
ret = flb_log_event_encoder_set_timestamp(
&ctx->log_encoder,
&record.timestamp);
enc_ret = flb_log_event_encoder_set_timestamp(
&ctx->log_encoder,
&record.timestamp);
if (enc_ret != FLB_EVENT_ENCODER_SUCCESS) {
flb_plg_error(ctx->ins,
"flb_log_event_encoder_set_timestamp error : %s",
flb_log_event_encoder_get_error_description(enc_ret));
flb_log_event_encoder_rollback_record(&ctx->log_encoder);
continue;
}

if (ret == FLB_EVENT_ENCODER_SUCCESS) {
ret = flb_log_event_encoder_set_metadata_from_msgpack_object(
&ctx->log_encoder,
record.metadata);
enc_ret = flb_log_event_encoder_set_metadata_from_msgpack_object(
&ctx->log_encoder,
record.metadata);
if (enc_ret != FLB_EVENT_ENCODER_SUCCESS) {
flb_plg_error(ctx->ins,
"flb_log_event_encoder_set_metadata_from_msgpack_object error : %s",
flb_log_event_encoder_get_error_description(enc_ret));
flb_log_event_encoder_rollback_record(&ctx->log_encoder);
continue;
}

if (ret == FLB_EVENT_ENCODER_SUCCESS) {
ret = flb_log_event_encoder_set_body_from_msgpack_object(
&ctx->log_encoder,
record.body);
enc_ret = flb_log_event_encoder_set_body_from_msgpack_object(
&ctx->log_encoder,
record.body);
if (enc_ret != FLB_EVENT_ENCODER_SUCCESS) {
flb_plg_error(ctx->ins,
"flb_log_event_encoder_set_body_from_msgpack_object error : %s",
flb_log_event_encoder_get_error_description(enc_ret));
flb_log_event_encoder_rollback_record(&ctx->log_encoder);
continue;
}

if (ret == FLB_EVENT_ENCODER_SUCCESS) {
ret = flb_log_event_encoder_commit_record(&ctx->log_encoder);
}
else {
enc_ret = flb_log_event_encoder_commit_record(&ctx->log_encoder);
if (enc_ret != FLB_EVENT_ENCODER_SUCCESS) {
flb_plg_error(ctx->ins,
"flb_log_event_encoder_commit_record error : %s",
flb_log_event_encoder_get_error_description(enc_ret));
flb_log_event_encoder_rollback_record(&ctx->log_encoder);
continue;
}
}

if (ret == FLB_EVENT_DECODER_ERROR_INSUFFICIENT_DATA &&
decoder.offset == out_size) {
ret = FLB_EVENT_ENCODER_SUCCESS;
}

if (ret == FLB_EVENT_ENCODER_SUCCESS) {
dec_ret = flb_log_event_decoder_get_last_result(&decoder);
if (dec_ret == FLB_EVENT_DECODER_SUCCESS) {
flb_input_log_append(ctx->ins, NULL, 0,
ctx->log_encoder.output_buffer,
ctx->log_encoder.output_length);

ret = 0;
}
else {
flb_plg_error(ctx->ins, "Error encoding record : %d", ret);

flb_plg_error(ctx->ins,
"flb_log_event_decoder_get_last_result error : %s",
flb_log_event_decoder_get_error_description(dec_ret));
ret = -1;
}

Expand Down