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/**
* Private header file for comex groups backed by MPI_comm.
*
* The rest of the comex group functions are defined in the public comex.h.
*
* @author Jeff Daily
*/
#ifndef _COMEX_GROUPS_H_
#define _COMEX_GROUPS_H_
#include <mpi.h>
#include "comex.h"
#include "comex_impl.h"
typedef struct group_link {
struct group_link *next;
comex_group_t id;
MPI_Comm comm;
MPI_Group group;
} comex_igroup_t;
extern void comex_group_init();
extern void comex_group_finalize();
extern comex_igroup_t* comex_get_igroup_from_group(comex_group_t group);
#define VALIDATE_GROUP_AND_PROC(group, proc) \
do { \
int group_size; \
EXPR_CHKANDJUMP((group >= 0), "invalid group"); \
COMEX_CHKANDJUMP(comex_group_size(group, &group_size), "failed to get group size"); \
EXPR_CHKANDJUMP((proc >= 0), "invalid proc"); \
EXPR_CHKANDJUMP((proc < group_size), "invalid proc"); \
} while(0)
#endif /* _COMEX_GROUPS_H_ */
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