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https://github.com/varun-r-mallya/sysprof.git
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9d2f7d3767
This represents the SysprofCaptureCtrset and allows fetching the raw values for a given counter. These are raw because they may not be endian swapped and that is the responsibility of the consumer. SysprofDocument will use these eventually to store the values for a given counter and the time of the value shift.
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/* sysprof-document-ctrset.c
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*
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* Copyright 2023 Christian Hergert <chergert@redhat.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include "config.h"
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#include "sysprof-document-frame-private.h"
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#include "sysprof-document-ctrset.h"
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struct _SysprofDocumentCtrset
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{
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SysprofDocumentFrame parent_instance;
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};
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struct _SysprofDocumentCtrsetClass
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{
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SysprofDocumentFrameClass parent_class;
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};
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G_DEFINE_FINAL_TYPE (SysprofDocumentCtrset, sysprof_document_ctrset, SYSPROF_TYPE_DOCUMENT_FRAME)
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static void
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sysprof_document_ctrset_class_init (SysprofDocumentCtrsetClass *klass)
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{
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}
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static void
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sysprof_document_ctrset_init (SysprofDocumentCtrset *self)
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{
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}
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guint
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sysprof_document_ctrset_get_n_values (SysprofDocumentCtrset *self)
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{
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const SysprofCaptureCounterSet *ctrset;
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g_return_val_if_fail (SYSPROF_IS_DOCUMENT_CTRSET (self), 0);
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ctrset = SYSPROF_DOCUMENT_FRAME_GET (self, SysprofCaptureCounterSet);
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return SYSPROF_DOCUMENT_FRAME_UINT16 (self, ctrset->n_values);
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}
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/**
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* sysprof_document_ctrset_get_raw_value: (skip)
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* @self: a #SysprofDocumentCtrset
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* @nth: the nth value to get
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* @id: (out): a location for the counter id
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* @value: a location to store the raw value
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*
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* The raw value is 8 bytes and may not be converted to local
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* byte ordering.
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*
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* @nth must be less-than sysprof_document_ctrset_get_n_values().
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*/
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void
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sysprof_document_ctrset_get_raw_value (SysprofDocumentCtrset *self,
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guint nth,
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guint *id,
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guint8 value[restrict 8])
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{
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const SysprofCaptureCounterSet *ctrset;
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g_return_if_fail (SYSPROF_IS_DOCUMENT_CTRSET (self));
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g_return_if_fail (nth < sysprof_document_ctrset_get_n_values (self));
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g_return_if_fail (value != NULL);
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ctrset = SYSPROF_DOCUMENT_FRAME_GET (self, SysprofCaptureCounterSet);
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*id = ctrset->values[nth / 8].ids[nth % 8];
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memcpy (value, &ctrset->values[nth / 8].values[nth % 8], 8);
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}
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