greenplumn _api 源码
greenplumn _api 代码
文件路径：/src/backend/gporca/libgpos/include/gpos/_api.h
/*---------------------------------------------------------------------------
* Greenplum Database
* Copyright (c) 2004-2015 VMware, Inc. or its affiliates.
*
* @filename:
* _api.h
*
* @doc:
* GPOS wrapper interface for GPDB.
*
* @owner:
*
* @test:
*
*
*---------------------------------------------------------------------------*/
#ifndef GPOS_api_H
#define GPOS_api_H
#ifndef USE_CMAKE
#include "pg_config.h"
#endif
#include "gpos/base.h"
#ifdef __cplusplus
// lookup given exception type in the given array
gpos::BOOL FoundException(gpos::CException &exc, const gpos::ULONG *exceptions,
gpos::ULONG size);
// Check if given exception is an unexpected reason for failing to
// produce a plan
gpos::BOOL IsLoggableFailure(gpos::CException &exc);
// check if given exception should error out
gpos::BOOL ShouldErrorOut(gpos::CException &exc);
extern "C" {
#include <stddef.h>
#endif /* __cplusplus */
/*
* struct with configuration parameters for task execution;
* this needs to be in sync with the corresponding structure in optserver.h
*/
struct gpos_exec_params
{
void *(*func)(void *); /* task function */
void *arg; /* task argument */
void *result; /* task result */
void *stack_start; /* start of current thread's stack */
char *error_buffer; /* buffer used to store error messages */
int error_buffer_size; /* size of error message buffer */
bool *abort_requested; /* flag indicating if abort is requested */
};
/* struct containing initialization parameters for gpos */
struct gpos_init_params
{
bool (*abort_requested)(void); /* callback to report abort requests */
};
/* initialize GPOS memory pool, worker pool and message repository */
void gpos_init(struct gpos_init_params *params);
/*
* execute function as a GPOS task using current thread;
* return 0 for successful completion, 1 for error
*/
int gpos_exec(gpos_exec_params *params);
/* shutdown GPOS memory pool, worker pool and message repository */
void gpos_terminate(void);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* !GPOS_api_H */
// EOF
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