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https://github.com/varun-r-mallya/sysprof.git
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63b42c2319
This is handy so that we don't have to keep multiple objects around to handle this request. Otherwise we'd need to keep references to the document and that is a bit annoying. This of course has a limit of about an hour (in tv_nsec), but that is far longer than we can realistically record anyway.
107 lines
4.0 KiB
C
107 lines
4.0 KiB
C
/* sysprof-document-frame-private.h
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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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#pragma once
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#include <sysprof-capture.h>
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#include "sysprof-document-frame.h"
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G_BEGIN_DECLS
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struct _SysprofDocumentFrame
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{
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GObject parent;
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GMappedFile *mapped_file;
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const SysprofCaptureFrame *frame;
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guint32 frame_len : 16;
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guint32 needs_swap : 1;
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guint32 padding : 15;
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guint32 time_offset;
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};
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struct _SysprofDocumentFrameClass
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{
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GObjectClass parent_class;
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};
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SysprofDocumentFrame *_sysprof_document_frame_new (GMappedFile *mapped,
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const SysprofCaptureFrame *frame,
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guint16 frame_len,
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gboolean needs_swap,
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gint64 clock_at_start);
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#define SYSPROF_DOCUMENT_FRAME_ENDPTR(obj) \
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(&((const guint8 *)SYSPROF_DOCUMENT_FRAME(obj)->frame)[SYSPROF_DOCUMENT_FRAME(obj)->frame_len])
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#define SYSPROF_DOCUMENT_FRAME_GET(obj, type) \
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((const type *)(SYSPROF_DOCUMENT_FRAME(obj)->frame))
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#define SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) \
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(SYSPROF_DOCUMENT_FRAME (obj)->needs_swap)
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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# define SYSPROF_DOCUMENT_FRAME_UINT16(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GUINT16_TO_LE(val) : (val))
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# define SYSPROF_DOCUMENT_FRAME_INT16(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GINT16_TO_LE(val) : (val))
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# define SYSPROF_DOCUMENT_FRAME_UINT32(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GUINT32_TO_LE(val) : (val))
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# define SYSPROF_DOCUMENT_FRAME_INT32(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GINT32_TO_LE(val) : (val))
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# define SYSPROF_DOCUMENT_FRAME_UINT64(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GUINT64_TO_LE(val) : (val))
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# define SYSPROF_DOCUMENT_FRAME_INT64(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GINT64_TO_LE(val) : (val))
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#else
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# define SYSPROF_DOCUMENT_FRAME_UINT16(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GUINT16_TO_BE(val) : (val))
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# define SYSPROF_DOCUMENT_FRAME_INT16(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GINT16_TO_BE(val) : (val))
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# define SYSPROF_DOCUMENT_FRAME_UINT32(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GUINT32_TO_BE(val) : (val))
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# define SYSPROF_DOCUMENT_FRAME_INT32(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GINT32_TO_BE(val) : (val))
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# define SYSPROF_DOCUMENT_FRAME_UINT64(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GUINT64_TO_BE(val) : (val))
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# define SYSPROF_DOCUMENT_FRAME_INT64(obj, val) \
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(SYSPROF_DOCUMENT_FRAME_NEEDS_SWAP(obj) ? GINT64_TO_BE(val) : (val))
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#endif
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static inline const char *
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_SYSPROF_DOCUMENT_FRAME_CSTRING (SysprofDocumentFrame *self,
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const char *str)
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{
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const char *endptr = (const char *)self->frame + self->frame_len;
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for (const char *c = str; c < endptr; c++)
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{
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if (*c == 0)
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return str;
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}
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return NULL;
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}
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#define SYSPROF_DOCUMENT_FRAME_CSTRING(obj,str) \
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_SYSPROF_DOCUMENT_FRAME_CSTRING(SYSPROF_DOCUMENT_FRAME(obj),str)
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G_END_DECLS
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