serverCalculate

The server receives the query data from the client and returns the corresponding value to the client.

int serverCalculate(
     DG_TeeCtx *dgTeeCtx, 
     DG_BucketMap *bucketMap
)

Parameters

**Table 1** Description
Parameter	Description	Value Range	Input/Output
dgTeeCtx	KCAL context	Context initialized in section initTeeCtx.	Input
bucketMap	Internal bucket structure	The external key-value data is stored in the internal bucket structure to optimize query efficiency.	Input

Return Values

Success: 0 is returned.
Failure: The error code is returned.

Error Codes

**Table 2** Error codes
Error Code	Value	Description	Remarks
DG_SUCCESS	0	Success	-
DG_FAILURE	1	Communication failure	-
DG_ERR_MPC_TEE_INVALID_NODE_INFO	4503	Invalid TEE node information	-
DG_ERR_MPC_TEE_INVALID_PARAM	4501	Failed to verify the parameters.	dgCfg is null or the dgTeeCtx double pointer is null.

Dependency

This API depends on the KCAL configuration in section DataGuard APIs for Configuring an Operation Set, and the configured dgCfg is used as the input parameter of this API.
pirOpts depends on the successful initialization in section DG_InitPirOpts of the function group for the PIR operator.
#include "data_guard_mpc.h": required header file

Example

#include  "data_guard_mpc.h" 

// pirOpts is the result of the successful DG_InitPirOpts call, and dgTee is the result of the successful initTeeCtx call.
// bucketMap is the output result of offlineCalculate.
 int res = pirOpts.serverCalculate(dgTee,bucketMap);
 if (rv != 0) {
        return rv;
  }

Call the serverCalculate API using the pirOpts output of the successful DG_InitPirOpts call.

Parent topic: PIR Operator