greenplumn gppc_test 源码
greenplumn gppc_test 代码
文件路径：/src/interfaces/gppc/test/gppc_test.c
/*-------------------------------------------------------------------------
*
* gppc_test.c
* libgppc test program
*
* Portions Copyright (c) 2012, Greenplum Inc.
* Portions Copyright (c) 2012-Present VMware, Inc. or its affiliates.
*
*
* IDENTIFICATION
* src/interfaces/gppc/test/gppc_test/gppc_test.c
*
*-------------------------------------------------------------------------
*/
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <sys/types.h>
#include "gppc.h"
static void
allocate_a_lot(GppcMemoryContext context)
{
void *ptr;
int i;
GppcMemoryContext oldcontext;
oldcontext = GppcMemoryContextSwitchTo(context);
for (i = 0; i < 20; i++)
{
/*
* 900M bytes, completely depending on the default setting,
* but it's fairly reasonable, I believe...
*/
ptr = (int *) GppcAlloc(900 * 1000 * 1000);
GppcMemoryContextReset(context);
}
GppcMemoryContextSwitchTo(oldcontext);
}
GPPC_FUNCTION_INFO(test_reset_current_memory);
GppcDatum test_reset_current_memory(GPPC_FUNCTION_ARGS);
GppcDatum
test_reset_current_memory(GPPC_FUNCTION_ARGS)
{
allocate_a_lot(GppcGetCurrentMemoryContext());
GPPC_RETURN_BOOL(true);
}
GPPC_FUNCTION_INFO(test_reset_child_memory);
GppcDatum test_reset_child_memory(GPPC_FUNCTION_ARGS);
GppcDatum
test_reset_child_memory(GPPC_FUNCTION_ARGS)
{
GppcMemoryContext current, child;
int *my_ptr;
current = GppcGetCurrentMemoryContext();
child = GppcMemoryContextCreate(current);
my_ptr = (int *) GppcAlloc(10 * sizeof(int));
my_ptr[0] = 42;
allocate_a_lot(child);
/* Should still be valid. */
GPPC_RETURN_BOOL(my_ptr[0] == 42);
}
GPPC_FUNCTION_INFO(test_interrupt);
GppcDatum test_interrupt(GPPC_FUNCTION_ARGS);
GppcDatum
test_interrupt(GPPC_FUNCTION_ARGS)
{
GppcCheckForInterrupts();
GppcReport(GPPC_ERROR, "GppcCheckForInterrupts did not catch error");
GPPC_RETURN_NULL();
}
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