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a64b39aef8
The new "report_init_for_selection" is just a wrapper over dm_report_init_with_selection that initializes reporting for selection only. This means we're not going to do the actual reporting to output for display and as such we intialize reporting as if no fields are reported or sorted. The only fields "reported" are taken from the selection criteria string and all such fields are marked as hidden automatically (FLD_HIDDEN flag). These fields are used solely for selection criteria matching. Also, modify existing report_object function that was used for reporting to output for display. Now, it can either cause reporting to output or reporting for selection only. The selection result is stored in struct selection_handle's "selected" variable which can be handled further by any report_object caller.
84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
/*
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* Copyright (C) 2002-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU Lesser General Public License v.2.1.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _LVM_REPORT_H
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#define _LVM_REPORT_H
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#include "metadata-exported.h"
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#include "label.h"
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#include "activate.h"
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typedef enum {
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LVS = 1,
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LVSINFO = 2,
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LVSSTATUS = 4,
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LVSINFOSTATUS = 8,
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PVS = 16,
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VGS = 32,
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SEGS = 64,
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SEGSSTATUS = 128,
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PVSEGS = 256,
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LABEL = 512,
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DEVTYPES = 1024
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} report_type_t;
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/*
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* The "struct selection_handle" is used only for selection
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* of items that should be processed further (not for display!).
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*
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* It consists of selection reporting handle "selection_rh"
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* used for the selection itself (not for display on output!).
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* The items are reported directly in memory to a buffer and
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* then compared against selection criteria. Once we know the
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* result of the selection, the buffer is dropped!
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*
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* The "orig_report_type" is the original requested report type.
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* The "report_type" is the reporting type actually used which
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* also counts with report types of the fields used in selection
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* criteria.
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*
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* The "selected" variable is used for propagating the result
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* of the selection.
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*/
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struct selection_handle {
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struct dm_report *selection_rh;
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report_type_t orig_report_type;
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report_type_t report_type;
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int selected;
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};
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struct field;
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struct report_handle;
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typedef int (*field_report_fn) (struct report_handle * dh, struct field * field,
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const void *data);
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void *report_init(struct cmd_context *cmd, const char *format, const char *keys,
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report_type_t *report_type, const char *separator,
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int aligned, int buffered, int headings, int field_prefixes,
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int quoted, int columns_as_rows, const char *selection);
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void *report_init_for_selection(struct cmd_context *cmd, report_type_t *report_type,
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const char *selection);
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void report_free(void *handle);
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int report_object(void *handle, int selection_only, const struct volume_group *vg,
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const struct logical_volume *lv, const struct physical_volume *pv,
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const struct lv_segment *seg, const struct pv_segment *pvseg,
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const struct lv_with_info_and_seg_status *lvdm,
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const struct label *label);
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int report_devtypes(void *handle);
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int report_output(void *handle);
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#endif
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