mirror of
https://github.com/varun-r-mallya/sysprof.git
synced 2025-12-31 20:36:25 +00:00
dbb7833cbf
This brings together the two libraries back into one now that the whole design is pretty well sorted out. They depend on roughly the same libraries anyway and it's way easier of the single library can both read and write the capture files (along with bringing in libsysprof-capture symbols in a single place).
117 lines
3.2 KiB
C
117 lines
3.2 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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gconstpointer endptr;
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guint n_groups;
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guint n_values = 0;
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g_return_val_if_fail (SYSPROF_IS_DOCUMENT_CTRSET (self), 0);
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endptr = SYSPROF_DOCUMENT_FRAME_ENDPTR (self);
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ctrset = SYSPROF_DOCUMENT_FRAME_GET (self, SysprofCaptureCounterSet);
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n_groups = SYSPROF_DOCUMENT_FRAME_UINT16 (self, ctrset->n_values);
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for (guint i = 0; i < n_groups; i++)
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{
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const SysprofCaptureCounterValues *values = &ctrset->values[i];
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/* Don't allow overflowing the frame zone */
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if ((gconstpointer)&values[1] > endptr)
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break;
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for (guint j = 0; j < G_N_ELEMENTS (values->ids); j++)
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{
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if (values->ids[j] == 0)
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break;
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n_values++;
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}
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}
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return 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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guint group;
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guint pos;
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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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group = nth / 8;
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pos = nth % 8;
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ctrset = SYSPROF_DOCUMENT_FRAME_GET (self, SysprofCaptureCounterSet);
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*id = SYSPROF_DOCUMENT_FRAME_UINT32 (self, ctrset->values[group].ids[pos]);
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memcpy (value, &ctrset->values[group].values[pos], 8);
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}
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