mirror of
git://sourceware.org/git/lvm2.git
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1117 lines
24 KiB
C
1117 lines
24 KiB
C
/*
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* Copyright (C) 2002 Sistina Software
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*
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* This LVM library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This LVM library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this LVM library; if not, write to the Free
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* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA
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*
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*/
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#include "lib.h"
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#include "metadata.h"
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#include "report.h"
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#include "toolcontext.h"
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#include "pool.h"
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#include "lvm-string.h"
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#include "display.h"
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#include "activate.h"
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/*
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* For macro use
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*/
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static union {
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struct physical_volume _pv;
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struct logical_volume _lv;
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struct volume_group _vg;
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struct lv_segment _seg;
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} _dummy;
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/*
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* Report handle flags
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*/
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#define RH_SORT_REQUIRED 0x00000001
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#define RH_HEADINGS_PRINTED 0x00000002
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#define RH_BUFFERED 0x00000004
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#define RH_ALIGNED 0x00000008
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#define RH_HEADINGS 0x00000010
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struct report_handle {
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struct cmd_context *cmd;
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struct pool *mem;
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report_type_t type;
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const char *field_prefix;
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uint32_t flags;
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const char *separator;
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uint32_t keys_count;
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/* Ordered list of fields needed for this report */
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struct list field_props;
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/* Rows of report data */
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struct list rows;
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};
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/*
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* Per-field flags
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*/
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#define FLD_ALIGN_LEFT 0x00000001
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#define FLD_ALIGN_RIGHT 0x00000002
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#define FLD_STRING 0x00000004
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#define FLD_NUMBER 0x00000008
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#define FLD_HIDDEN 0x00000010
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#define FLD_SORT_KEY 0x00000020
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#define FLD_ASCENDING 0x00000040
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#define FLD_DESCENDING 0x00000080
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struct field_properties {
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struct list list;
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uint32_t field_num;
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uint32_t sort_posn;
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int width;
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uint32_t flags;
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};
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/*
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* Report data
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*/
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struct field {
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struct list list;
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struct field_properties *props;
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const char *report_string; /* Formatted ready for display */
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const void *sort_value; /* Raw value for sorting */
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};
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struct row {
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struct list list;
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struct report_handle *rh;
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struct list fields; /* Fields in display order */
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struct field *(*sort_fields)[]; /* Fields in sort order */
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};
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/*
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* Data-munging functions to prepare each data type for display and sorting
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*/
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static int _string_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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if (!
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(field->report_string =
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pool_strdup(rh->mem, *(const char **) data))) {
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log_error("pool_strdup failed");
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return 0;
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}
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field->sort_value = (const void *) field->report_string;
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return 1;
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}
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static int _dev_name_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const char *name = dev_name(*(const struct device **) data);
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return _string_disp(rh, field, &name);
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}
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static int _vgfmt_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct volume_group *vg = (const struct volume_group *) data;
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if (!vg->fid) {
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field->report_string = "";
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field->sort_value = (const void *) field->report_string;
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return 1;
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}
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return _string_disp(rh, field, &vg->fid->fmt->name);
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}
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static int _pvfmt_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct physical_volume *pv =
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(const struct physical_volume *) data;
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if (!pv->fmt) {
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field->report_string = "";
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field->sort_value = (const void *) field->report_string;
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return 1;
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}
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return _string_disp(rh, field, &pv->fmt->name);
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}
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static int _lvstatus_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct logical_volume *lv = (const struct logical_volume *) data;
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struct lvinfo info;
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char *repstr;
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struct snapshot *snap;
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float snap_percent;
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if (!(repstr = pool_zalloc(rh->mem, 7))) {
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log_error("pool_alloc failed");
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return 0;
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}
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if (lv_is_origin(lv))
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repstr[0] = 'o';
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else if (find_cow(lv))
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repstr[0] = 's';
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else
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repstr[0] = '-';
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if (lv->status & LVM_WRITE)
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repstr[1] = 'w';
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else
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repstr[1] = 'r';
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if (lv->alloc == ALLOC_CONTIGUOUS)
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repstr[2] = 'c';
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else
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repstr[2] = 'n';
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if (lv->status & FIXED_MINOR)
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repstr[3] = 'm'; /* Fixed Minor */
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else
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repstr[3] = '-';
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if (lv_info(lv, &info) && info.exists) {
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if (info.suspended)
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repstr[4] = 's'; /* Suspended */
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else
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repstr[4] = 'a'; /* Active */
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if (info.open_count)
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repstr[5] = 'o'; /* Open */
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else
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repstr[5] = '-';
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/* Snapshot dropped? */
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if ((snap = find_cow(lv)) &&
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(!lv_snapshot_percent(snap->cow, &snap_percent) ||
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snap_percent < 0))
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repstr[0] = toupper(repstr[0]);
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} else {
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repstr[4] = '-';
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repstr[5] = '-';
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}
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field->report_string = repstr;
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field->sort_value = (const void *) field->report_string;
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return 1;
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}
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static int _pvstatus_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const uint32_t status = *(const uint32_t *) data;
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char *repstr;
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if (!(repstr = pool_zalloc(rh->mem, 4))) {
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log_error("pool_alloc failed");
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return 0;
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}
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if (status & ALLOCATABLE_PV)
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repstr[0] = 'a';
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else
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repstr[0] = '-';
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if (status & EXPORTED_VG)
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repstr[1] = 'x';
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else
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repstr[1] = '-';
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field->report_string = repstr;
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field->sort_value = (const void *) field->report_string;
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return 1;
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}
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static int _vgstatus_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const uint32_t status = *(const uint32_t *) data;
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char *repstr;
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if (!(repstr = pool_zalloc(rh->mem, 5))) {
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log_error("pool_alloc failed");
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return 0;
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}
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if (status & LVM_WRITE)
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repstr[0] = 'w';
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else
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repstr[0] = 'r';
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if (status & RESIZEABLE_VG)
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repstr[1] = 'z';
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else
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repstr[1] = '-';
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if (status & EXPORTED_VG)
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repstr[2] = 'x';
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else
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repstr[2] = '-';
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if (status & PARTIAL_VG)
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repstr[3] = 'p';
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else
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repstr[3] = '-';
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field->report_string = repstr;
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field->sort_value = (const void *) field->report_string;
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return 1;
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}
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static int _segtype_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct lv_segment *seg = (const struct lv_segment *) data;
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if (seg->stripes == 1)
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field->report_string = "linear";
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else
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field->report_string = get_segtype_string(seg->type);
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field->sort_value = (const void *) field->report_string;
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return 1;
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}
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static int _origin_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct logical_volume *lv = (const struct logical_volume *) data;
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struct snapshot *snap;
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if ((snap = find_cow(lv)))
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return _string_disp(rh, field, &snap->origin->name);
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field->report_string = "";
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field->sort_value = (const void *) field->report_string;
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return 1;
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}
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static int _size32_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const uint32_t size = *(const uint32_t *) data;
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const char *disp;
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uint64_t *sortval;
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if (!*(disp = display_size(rh->cmd, (uint64_t) size / 2, SIZE_UNIT))) {
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stack;
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return 0;
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}
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if (!(field->report_string = pool_strdup(rh->mem, disp))) {
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log_error("pool_strdup failed");
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return 0;
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}
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if (!(sortval = pool_alloc(rh->mem, sizeof(uint64_t)))) {
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log_error("pool_alloc failed");
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return 0;
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}
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*sortval = (const uint64_t) size;
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field->sort_value = (const void *) sortval;
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return 1;
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}
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static int _size64_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const uint64_t size = *(const uint64_t *) data;
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const char *disp;
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uint64_t *sortval;
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if (!*(disp = display_size(rh->cmd, size / 2, SIZE_UNIT))) {
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stack;
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return 0;
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}
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if (!(field->report_string = pool_strdup(rh->mem, disp))) {
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log_error("pool_strdup failed");
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return 0;
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}
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if (!(sortval = pool_alloc(rh->mem, sizeof(uint64_t)))) {
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log_error("pool_alloc failed");
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return 0;
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}
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*sortval = size;
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field->sort_value = sortval;
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return 1;
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}
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static int _vgsize_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct volume_group *vg = (const struct volume_group *) data;
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uint64_t size;
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size = vg->extent_count * vg->extent_size;
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return _size64_disp(rh, field, &size);
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}
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static int _segstart_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct lv_segment *seg = (const struct lv_segment *) data;
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uint64_t start;
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start = seg->le * seg->lv->vg->extent_size;
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return _size64_disp(rh, field, &start);
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}
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static int _segsize_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct lv_segment *seg = (const struct lv_segment *) data;
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uint64_t size;
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size = seg->len * seg->lv->vg->extent_size;
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return _size64_disp(rh, field, &size);
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}
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static int _pvused_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct physical_volume *pv =
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(const struct physical_volume *) data;
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uint64_t used;
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if (!pv->pe_count)
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used = 0LL;
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else
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used = pv->pe_alloc_count * pv->pe_size;
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return _size64_disp(rh, field, &used);
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}
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static int _pvfree_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct physical_volume *pv =
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(const struct physical_volume *) data;
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uint64_t freespace;
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if (!pv->pe_count)
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freespace = pv->size;
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else
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freespace = (pv->pe_count - pv->pe_alloc_count) * pv->pe_size;
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return _size64_disp(rh, field, &freespace);
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}
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static int _pvsize_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct physical_volume *pv =
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(const struct physical_volume *) data;
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uint64_t size;
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if (!pv->pe_count)
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size = pv->size;
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else
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size = pv->pe_count * pv->pe_size;
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return _size64_disp(rh, field, &size);
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}
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static int _vgfree_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct volume_group *vg = (const struct volume_group *) data;
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uint64_t freespace;
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freespace = vg->free_count * vg->extent_size;
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return _size64_disp(rh, field, &freespace);
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}
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static int _uuid_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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char *repstr = NULL;
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if (!(repstr = pool_alloc(rh->mem, 40))) {
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log_error("pool_alloc failed");
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return 0;
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}
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if (!id_write_format((const struct id *) data, repstr, 40)) {
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stack;
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return 0;
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}
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field->report_string = repstr;
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field->sort_value = (const void *) field->report_string;
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return 1;
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}
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static int _uint32_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const uint32_t value = *(const uint32_t *) data;
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uint64_t *sortval;
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char *repstr;
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if (!(repstr = pool_zalloc(rh->mem, 12))) {
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log_error("pool_alloc failed");
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return 0;
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}
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if (!(sortval = pool_alloc(rh->mem, sizeof(uint64_t)))) {
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log_error("pool_alloc failed");
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return 0;
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}
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if (lvm_snprintf(repstr, 11, "%u", value) < 0) {
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log_error("uint32 too big: %u", value);
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return 0;
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}
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*sortval = (const uint64_t) value;
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field->sort_value = sortval;
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field->report_string = repstr;
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return 1;
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}
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static int _int32_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const int32_t value = *(const int32_t *) data;
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uint64_t *sortval;
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char *repstr;
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if (!(repstr = pool_zalloc(rh->mem, 13))) {
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log_error("pool_alloc failed");
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return 0;
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}
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if (!(sortval = pool_alloc(rh->mem, sizeof(int64_t)))) {
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log_error("pool_alloc failed");
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return 0;
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}
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if (lvm_snprintf(repstr, 12, "%d", value) < 0) {
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log_error("int32 too big: %d", value);
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return 0;
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}
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*sortval = (const uint64_t) value;
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field->sort_value = sortval;
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field->report_string = repstr;
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return 1;
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}
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static int _lvsegcount_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct logical_volume *lv = (const struct logical_volume *) data;
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uint32_t count;
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count = list_size(&lv->segments);
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return _uint32_disp(rh, field, &count);
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}
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static int _snpercent_disp(struct report_handle *rh, struct field *field,
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const void *data)
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{
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const struct logical_volume *lv = (const struct logical_volume *) data;
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struct snapshot *snap;
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float snap_percent;
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uint64_t *sortval;
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char *repstr;
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|
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if (!(sortval = pool_alloc(rh->mem, sizeof(uint64_t)))) {
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log_error("pool_alloc failed");
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return 0;
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}
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if (!(snap = find_cow(lv))) {
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field->report_string = "";
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*sortval = UINT64_C(0);
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field->sort_value = sortval;
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return 1;
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}
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|
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if (!lv_snapshot_percent(snap->cow, &snap_percent) || snap_percent < 0) {
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field->report_string = "100.00";
|
|
*sortval = UINT64_C(100);
|
|
field->sort_value = sortval;
|
|
return 1;
|
|
}
|
|
|
|
if (!(repstr = pool_zalloc(rh->mem, 8))) {
|
|
log_error("pool_alloc failed");
|
|
return 0;
|
|
}
|
|
|
|
if (snap_percent == -1)
|
|
snap_percent = 100;
|
|
|
|
if (lvm_snprintf(repstr, 7, "%.2f", snap_percent) < 0) {
|
|
log_error("snapshot percentage too large");
|
|
return 0;
|
|
}
|
|
|
|
*sortval = snap_percent * UINT64_C(1000);
|
|
field->sort_value = sortval;
|
|
field->report_string = repstr;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Import column definitions
|
|
*/
|
|
|
|
#define STR (FLD_STRING | FLD_ALIGN_LEFT)
|
|
#define NUM (FLD_NUMBER | FLD_ALIGN_RIGHT)
|
|
#define FIELD(type, strct, sorttype, head, field, width, func, id) {type, id, (off_t)((void *)&_dummy._ ## strct.field - (void *)&_dummy._ ## strct), head, width, sorttype, &_ ## func ## _disp},
|
|
|
|
static struct {
|
|
report_type_t type;
|
|
const char id[30];
|
|
off_t offset;
|
|
const char heading[30];
|
|
int width;
|
|
uint32_t flags;
|
|
field_report_fn report_fn;
|
|
} _fields[] = {
|
|
#include "columns.h"
|
|
};
|
|
|
|
#undef STR
|
|
#undef NUM
|
|
#undef FIELD
|
|
|
|
const unsigned int _num_fields = sizeof(_fields) / sizeof(_fields[0]);
|
|
|
|
/*
|
|
* Initialise report handle
|
|
*/
|
|
static int _field_match(struct report_handle *rh, const char *field, size_t len)
|
|
{
|
|
uint32_t f, l;
|
|
struct field_properties *fp;
|
|
|
|
if (!len)
|
|
return 0;
|
|
|
|
for (f = 0; f < _num_fields; f++) {
|
|
if ((!strncasecmp(_fields[f].id, field, len) &&
|
|
strlen(_fields[f].id) == len) ||
|
|
(l = strlen(rh->field_prefix),
|
|
!strncasecmp(rh->field_prefix, _fields[f].id, l) &&
|
|
!strncasecmp(_fields[f].id + l, field, len) &&
|
|
strlen(_fields[f].id) == l + len)) {
|
|
rh->type |= _fields[f].type;
|
|
if (!(fp = pool_zalloc(rh->mem, sizeof(*fp)))) {
|
|
log_error("struct field_properties allocation "
|
|
"failed");
|
|
return 0;
|
|
}
|
|
fp->field_num = f;
|
|
fp->width = _fields[f].width;
|
|
fp->flags = _fields[f].flags;
|
|
|
|
/* Suppress snapshot percentage if not using driver */
|
|
if (!activation()
|
|
&& !strncmp(field, "snap_percent", len))
|
|
fp->flags |= FLD_HIDDEN;
|
|
|
|
list_add(&rh->field_props, &fp->list);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int _add_sort_key(struct report_handle *rh, uint32_t field_num,
|
|
uint32_t flags)
|
|
{
|
|
struct list *fh;
|
|
struct field_properties *fp, *found = NULL;
|
|
|
|
list_iterate(fh, &rh->field_props) {
|
|
fp = list_item(fh, struct field_properties);
|
|
|
|
if (fp->field_num == field_num) {
|
|
found = fp;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
/* Add as a non-display field */
|
|
if (!(found = pool_zalloc(rh->mem, sizeof(*found)))) {
|
|
log_error("struct field_properties allocation failed");
|
|
return 0;
|
|
}
|
|
|
|
rh->type |= _fields[field_num].type;
|
|
found->field_num = field_num;
|
|
found->width = _fields[field_num].width;
|
|
found->flags = _fields[field_num].flags | FLD_HIDDEN;
|
|
|
|
list_add(&rh->field_props, &found->list);
|
|
}
|
|
|
|
if (found->flags & FLD_SORT_KEY) {
|
|
log_error("Ignoring duplicate sort field: %s",
|
|
_fields[field_num].id);
|
|
return 1;
|
|
}
|
|
|
|
found->flags |= FLD_SORT_KEY;
|
|
found->sort_posn = rh->keys_count++;
|
|
found->flags |= flags;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int _key_match(struct report_handle *rh, const char *key, size_t len)
|
|
{
|
|
uint32_t f, l;
|
|
uint32_t flags = 0;
|
|
|
|
if (!len)
|
|
return 0;
|
|
|
|
if (*key == '+') {
|
|
key++;
|
|
len--;
|
|
flags = FLD_ASCENDING;
|
|
} else if (*key == '-') {
|
|
key++;
|
|
len--;
|
|
flags = FLD_DESCENDING;
|
|
} else
|
|
flags = FLD_ASCENDING;
|
|
|
|
if (!len) {
|
|
log_error("Missing sort field name");
|
|
return 0;
|
|
}
|
|
|
|
for (f = 0; f < _num_fields; f++) {
|
|
if ((!strncasecmp(_fields[f].id, key, len) &&
|
|
strlen(_fields[f].id) == len) ||
|
|
(l = strlen(rh->field_prefix),
|
|
!strncasecmp(rh->field_prefix, _fields[f].id, l) &&
|
|
!strncasecmp(_fields[f].id + l, key, len) &&
|
|
strlen(_fields[f].id) == l + len)) {
|
|
return _add_sort_key(rh, f, flags);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int _parse_options(struct report_handle *rh, const char *format)
|
|
{
|
|
const char *ws; /* Word start */
|
|
const char *we = format; /* Word end */
|
|
|
|
while (*we) {
|
|
/* Allow consecutive commas */
|
|
while (*we && *we == ',')
|
|
we++;
|
|
ws = we;
|
|
while (*we && *we != ',')
|
|
we++;
|
|
if (!_field_match(rh, ws, (size_t) (we - ws))) {
|
|
log_error("Unrecognised field: %.*s", (int) (we - ws),
|
|
ws);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int _parse_keys(struct report_handle *rh, const char *keys)
|
|
{
|
|
const char *ws; /* Word start */
|
|
const char *we = keys; /* Word end */
|
|
|
|
while (*we) {
|
|
/* Allow consecutive commas */
|
|
while (*we && *we == ',')
|
|
we++;
|
|
ws = we;
|
|
while (*we && *we != ',')
|
|
we++;
|
|
if (!_key_match(rh, ws, (size_t) (we - ws))) {
|
|
log_error("Unrecognised field: %.*s", (int) (we - ws),
|
|
ws);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
void *report_init(struct cmd_context *cmd, const char *format, const char *keys,
|
|
report_type_t *report_type, const char *separator,
|
|
int aligned, int buffered, int headings)
|
|
{
|
|
struct report_handle *rh;
|
|
|
|
if (!(rh = pool_zalloc(cmd->mem, sizeof(*rh)))) {
|
|
log_error("report_handle pool_zalloc failed");
|
|
return 0;
|
|
}
|
|
|
|
rh->cmd = cmd;
|
|
rh->type = *report_type;
|
|
rh->separator = separator;
|
|
|
|
if (aligned)
|
|
rh->flags |= RH_ALIGNED;
|
|
|
|
if (buffered)
|
|
rh->flags |= RH_BUFFERED | RH_SORT_REQUIRED;
|
|
|
|
if (headings)
|
|
rh->flags |= RH_HEADINGS;
|
|
|
|
list_init(&rh->field_props);
|
|
list_init(&rh->rows);
|
|
|
|
switch (rh->type) {
|
|
case PVS:
|
|
rh->field_prefix = "pv_";
|
|
break;
|
|
case LVS:
|
|
rh->field_prefix = "lv_";
|
|
break;
|
|
case VGS:
|
|
rh->field_prefix = "vg_";
|
|
break;
|
|
case SEGS:
|
|
rh->field_prefix = "seg_";
|
|
break;
|
|
default:
|
|
rh->field_prefix = "";
|
|
}
|
|
|
|
if (!(rh->mem = pool_create(10 * 1024))) {
|
|
log_error("Allocation of memory pool for report failed");
|
|
return NULL;
|
|
}
|
|
|
|
/* Generate list of fields for output based on format string & flags */
|
|
if (!_parse_options(rh, format))
|
|
return NULL;
|
|
|
|
if (!_parse_keys(rh, keys))
|
|
return NULL;
|
|
|
|
/* Ensure options selected are compatible */
|
|
if (rh->type & SEGS)
|
|
rh->type |= LVS;
|
|
if ((rh->type & LVS) && (rh->type & PVS)) {
|
|
log_error("Can't report LV and PV fields at the same time");
|
|
return NULL;
|
|
}
|
|
|
|
/* Change report type if fields specified makes this necessary */
|
|
if (rh->type & SEGS)
|
|
*report_type = SEGS;
|
|
else if (rh->type & LVS)
|
|
*report_type = LVS;
|
|
else if (rh->type & PVS)
|
|
*report_type = PVS;
|
|
|
|
return rh;
|
|
}
|
|
|
|
void report_free(void *handle)
|
|
{
|
|
struct report_handle *rh = handle;
|
|
|
|
pool_destroy(rh->mem);
|
|
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Create a row of data for an object
|
|
*/
|
|
int report_object(void *handle, struct volume_group *vg,
|
|
struct logical_volume *lv, struct physical_volume *pv,
|
|
struct lv_segment *seg)
|
|
{
|
|
struct report_handle *rh = handle;
|
|
struct list *fh;
|
|
struct field_properties *fp;
|
|
struct row *row;
|
|
struct field *field;
|
|
void *data = NULL;
|
|
|
|
if (lv && pv) {
|
|
log_error("report_object: One of *lv and *pv must be NULL!");
|
|
return 0;
|
|
}
|
|
|
|
if (!(row = pool_zalloc(rh->mem, sizeof(*row)))) {
|
|
log_error("struct row allocation failed");
|
|
return 0;
|
|
}
|
|
|
|
row->rh = rh;
|
|
|
|
if ((rh->flags & RH_SORT_REQUIRED) &&
|
|
!(row->sort_fields = pool_zalloc(rh->mem, sizeof(struct field *) *
|
|
rh->keys_count))) {
|
|
log_error("row sort value structure allocation failed");
|
|
return 0;
|
|
}
|
|
|
|
list_init(&row->fields);
|
|
list_add(&rh->rows, &row->list);
|
|
|
|
/* For each field to be displayed, call its report_fn */
|
|
list_iterate(fh, &rh->field_props) {
|
|
fp = list_item(fh, struct field_properties);
|
|
|
|
if (!(field = pool_zalloc(rh->mem, sizeof(*field)))) {
|
|
log_error("struct field allocation failed");
|
|
return 0;
|
|
}
|
|
field->props = fp;
|
|
|
|
switch (_fields[fp->field_num].type) {
|
|
case LVS:
|
|
data = (void *) lv + _fields[fp->field_num].offset;
|
|
break;
|
|
case VGS:
|
|
data = (void *) vg + _fields[fp->field_num].offset;
|
|
break;
|
|
case PVS:
|
|
data = (void *) pv + _fields[fp->field_num].offset;
|
|
break;
|
|
case SEGS:
|
|
data = (void *) seg + _fields[fp->field_num].offset;
|
|
}
|
|
|
|
if (!_fields[fp->field_num].report_fn(rh, field, data)) {
|
|
log_error("report function failed for field %s",
|
|
_fields[fp->field_num].id);
|
|
return 0;
|
|
}
|
|
|
|
if ((strlen(field->report_string) > field->props->width))
|
|
field->props->width = strlen(field->report_string);
|
|
|
|
if ((rh->flags & RH_SORT_REQUIRED) &&
|
|
(field->props->flags & FLD_SORT_KEY)) {
|
|
(*row->sort_fields)[field->props->sort_posn] = field;
|
|
}
|
|
list_add(&row->fields, &field->list);
|
|
}
|
|
|
|
if (!(rh->flags & RH_BUFFERED))
|
|
report_output(handle);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Print row of headings
|
|
*/
|
|
static int _report_headings(void *handle)
|
|
{
|
|
struct report_handle *rh = handle;
|
|
struct list *fh;
|
|
struct field_properties *fp;
|
|
|
|
if (rh->flags & RH_HEADINGS_PRINTED)
|
|
return 1;
|
|
|
|
if (!(rh->flags & RH_HEADINGS))
|
|
goto out;
|
|
|
|
/* First heading line */
|
|
list_iterate(fh, &rh->field_props) {
|
|
fp = list_item(fh, struct field_properties);
|
|
if (fp->flags & FLD_HIDDEN)
|
|
continue;
|
|
if (rh->flags & RH_ALIGNED)
|
|
printf("%-*.*s", fp->width, fp->width,
|
|
_fields[fp->field_num].heading);
|
|
else
|
|
printf("%s", _fields[fp->field_num].heading);
|
|
if (!list_end(&rh->field_props, fh))
|
|
printf("%s", rh->separator);
|
|
}
|
|
printf("\n");
|
|
|
|
out:
|
|
rh->flags |= RH_HEADINGS_PRINTED;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Sort rows of data
|
|
*/
|
|
static int _row_compare(const void *a, const void *b)
|
|
{
|
|
const struct row *rowa = *(const struct row **) a;
|
|
const struct row *rowb = *(const struct row **) b;
|
|
const struct field *sfa, *sfb;
|
|
int32_t cnt = -1;
|
|
|
|
for (cnt = 0; cnt < rowa->rh->keys_count; cnt++) {
|
|
sfa = (*rowa->sort_fields)[cnt];
|
|
sfb = (*rowb->sort_fields)[cnt];
|
|
if (sfa->props->flags & FLD_NUMBER) {
|
|
const uint64_t numa =
|
|
*(const uint64_t *) sfa->sort_value;
|
|
const uint64_t numb =
|
|
*(const uint64_t *) sfb->sort_value;
|
|
|
|
if (numa == numb)
|
|
continue;
|
|
|
|
if (sfa->props->flags & FLD_ASCENDING) {
|
|
return (numa > numb) ? 1 : -1;
|
|
} else { /* FLD_DESCENDING */
|
|
return (numa < numb) ? 1 : -1;
|
|
}
|
|
} else { /* FLD_STRING */
|
|
const char *stra = (const char *) sfa->sort_value;
|
|
const char *strb = (const char *) sfb->sort_value;
|
|
int cmp = strcmp(stra, strb);
|
|
|
|
if (!cmp)
|
|
continue;
|
|
|
|
if (sfa->props->flags & FLD_ASCENDING) {
|
|
return (cmp > 0) ? 1 : -1;
|
|
} else { /* FLD_DESCENDING */
|
|
return (cmp < 0) ? 1 : -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0; /* Identical */
|
|
}
|
|
|
|
static int _sort_rows(struct report_handle *rh)
|
|
{
|
|
struct row *(*rows)[];
|
|
struct list *rowh;
|
|
uint32_t count = 0;
|
|
struct row *row;
|
|
|
|
if (!(rows = pool_alloc(rh->mem, sizeof(**rows) *
|
|
list_size(&rh->rows)))) {
|
|
log_error("sort array allocation failed");
|
|
return 0;
|
|
}
|
|
|
|
list_iterate(rowh, &rh->rows) {
|
|
row = list_item(rowh, struct row);
|
|
(*rows)[count++] = row;
|
|
}
|
|
|
|
qsort(rows, count, sizeof(**rows), _row_compare);
|
|
|
|
list_init(&rh->rows);
|
|
while (count--)
|
|
list_add_h(&rh->rows, &(*rows)[count]->list);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Produce report output
|
|
*/
|
|
int report_output(void *handle)
|
|
{
|
|
struct report_handle *rh = handle;
|
|
struct list *fh, *rowh, *ftmp, *rtmp;
|
|
struct row *row = NULL;
|
|
struct field *field;
|
|
|
|
if (list_empty(&rh->rows))
|
|
return 1;
|
|
|
|
/* Sort rows */
|
|
if ((rh->flags & RH_SORT_REQUIRED))
|
|
_sort_rows(rh);
|
|
|
|
/* If headings not printed yet, calculate field widths and print them */
|
|
if (!(rh->flags & RH_HEADINGS_PRINTED))
|
|
_report_headings(rh);
|
|
|
|
/* Print and clear buffer */
|
|
list_iterate_safe(rowh, rtmp, &rh->rows) {
|
|
row = list_item(rowh, struct row);
|
|
list_iterate_safe(fh, ftmp, &row->fields) {
|
|
field = list_item(fh, struct field);
|
|
if (field->props->flags & FLD_HIDDEN)
|
|
continue;
|
|
if (!(rh->flags & RH_ALIGNED))
|
|
printf("%s", field->report_string);
|
|
else if (field->props->flags & FLD_ALIGN_LEFT)
|
|
printf("%-*.*s", field->props->width,
|
|
field->props->width,
|
|
field->report_string);
|
|
else if (field->props->flags & FLD_ALIGN_RIGHT)
|
|
printf("%*.*s", field->props->width,
|
|
field->props->width,
|
|
field->report_string);
|
|
if (!list_end(&row->fields, fh))
|
|
printf("%s", rh->separator);
|
|
list_del(&field->list);
|
|
}
|
|
printf("\n");
|
|
list_del(&row->list);
|
|
}
|
|
|
|
if (row)
|
|
pool_free(rh->mem, row);
|
|
|
|
return 1;
|
|
}
|