305 строки
8.2 KiB
C
305 строки
8.2 KiB
C
/*
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* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2006 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2012 Los Alamos National Security, Inc. All rights reserved.
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* Copyright (c) 2014 Intel, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "opal_config.h"
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#include <stdlib.h>
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h> /* for struct timeval */
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#endif
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#include "opal/dss/dss_internal.h"
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int opal_dss_compare(const void *value1, const void *value2, opal_data_type_t type)
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{
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opal_dss_type_info_t *info;
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/* check for error */
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if (NULL == value1 || NULL == value2) {
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return OPAL_ERR_BAD_PARAM;
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}
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/* Lookup the compare function for this type and call it */
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if (NULL == (info = (opal_dss_type_info_t*)opal_pointer_array_get_item(&opal_dss_types, type))) {
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return OPAL_ERR_UNKNOWN_DATA_TYPE;
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}
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return info->odti_compare_fn(value1, value2, type);
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}
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/*
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* NUMERIC COMPARE FUNCTIONS
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*/
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int opal_dss_compare_int(int *value1, int *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_uint(unsigned int *value1, unsigned int *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_size(size_t *value1, size_t *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_pid(pid_t *value1, pid_t *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_byte(char *value1, char *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_char(char *value1, char *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_int8(int8_t *value1, int8_t *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_uint8(uint8_t *value1, uint8_t *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_int16(int16_t *value1, int16_t *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_uint16(uint16_t *value1, uint16_t *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_int32(int32_t *value1, int32_t *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_uint32(uint32_t *value1, uint32_t *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_int64(int64_t *value1, int64_t *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_uint64(uint64_t *value1, uint64_t *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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int opal_dss_compare_float(float *value1, float *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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/*
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* NON-NUMERIC SYSTEM TYPES
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*/
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/* NULL */
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int opal_dss_compare_null(char *value1, char *value2, opal_data_type_t type)
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{
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return OPAL_EQUAL;
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}
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/* BOOL */
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int opal_dss_compare_bool(bool *value1, bool *value2, opal_data_type_t type)
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{
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if (*value1 && !(*value2)) return OPAL_VALUE1_GREATER;
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if (*value2 && !(*value1)) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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/* STRING */
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int opal_dss_compare_string(char *value1, char *value2, opal_data_type_t type)
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{
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if (0 < strcmp(value1, value2)) return OPAL_VALUE2_GREATER;
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if (0 > strcmp(value1, value2)) return OPAL_VALUE1_GREATER;
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return OPAL_EQUAL;
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}
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/* TIMEVAL */
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int opal_dss_compare_timeval(struct timeval *value1, struct timeval *value2, opal_data_type_t type)
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{
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if (value1->tv_sec > value2->tv_sec) return OPAL_VALUE1_GREATER;
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if (value2->tv_sec > value1->tv_sec) return OPAL_VALUE2_GREATER;
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/* seconds were equal - check usec's */
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if (value1->tv_usec > value2->tv_usec) return OPAL_VALUE1_GREATER;
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if (value2->tv_usec > value1->tv_usec) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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/* TIME */
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int opal_dss_compare_time(time_t *value1, time_t *value2, opal_data_type_t type)
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{
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if (value1 > value2) return OPAL_VALUE1_GREATER;
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if (value2 > value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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/* COMPARE FUNCTIONS FOR GENERIC OPAL TYPES */
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/* OPAL_DATA_TYPE */
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int opal_dss_compare_dt(opal_data_type_t *value1, opal_data_type_t *value2, opal_data_type_t type)
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{
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if (*value1 > *value2) return OPAL_VALUE1_GREATER;
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if (*value2 > *value1) return OPAL_VALUE2_GREATER;
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return OPAL_EQUAL;
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}
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/* OPAL_BYTE_OBJECT */
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int opal_dss_compare_byte_object(opal_byte_object_t *value1, opal_byte_object_t *value2, opal_data_type_t type)
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{
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int checksum, diff;
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int32_t i;
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/* compare the sizes first - bigger size object is "greater than" */
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if (value1->size > value2->size) return OPAL_VALUE1_GREATER;
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if (value2->size > value1->size) return OPAL_VALUE2_GREATER;
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/* get here if the two sizes are identical - now do a simple checksum-style
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* calculation to determine "biggest"
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*/
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checksum = 0;
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for (i=0; i < value1->size; i++) {
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/* protect against overflows */
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diff = value1->bytes[i] - value2->bytes[i];
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if (INT_MAX-abs(checksum)-abs(diff) < 0) { /* got an overflow condition */
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checksum = 0;
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}
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checksum += diff;
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}
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if (0 > checksum) return OPAL_VALUE2_GREATER; /* sum of value2 bytes was greater */
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if (0 < checksum) return OPAL_VALUE1_GREATER; /* of value1 bytes was greater */
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return OPAL_EQUAL; /* sum of both value's bytes was identical */
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}
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/* OPAL_PSTAT */
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int opal_dss_compare_pstat(opal_pstats_t *value1, opal_pstats_t *value2, opal_data_type_t type)
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{
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return OPAL_EQUAL; /* eventually compare field to field */
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}
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/* OPAL_NODE_STAT */
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int opal_dss_compare_node_stat(opal_node_stats_t *value1, opal_node_stats_t *value2, opal_data_type_t type)
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{
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return OPAL_EQUAL; /* eventually compare field to field */
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}
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/* OPAL_VALUE */
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int opal_dss_compare_value(opal_value_t *value1, opal_value_t *value2, opal_data_type_t type)
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{
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return OPAL_EQUAL; /* eventually compare field to field */
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}
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/* OPAL_BUFFER */
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int opal_dss_compare_buffer_contents(opal_buffer_t *value1, opal_buffer_t *value2, opal_data_type_t type)
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{
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return OPAL_EQUAL; /* eventually compare bytes in buffers */
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}
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