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532972beb6
This allows embedding the static capture library without having to deal with license incompatibility while retaining the patent clause. We want as many consumers of the format as makes sense without the restriction of what kind of app/library/tooling they are. The application, sysprofd, libsysprof, and libsysprof-ui continue to be GPLv3+.
469 lines
15 KiB
C
469 lines
15 KiB
C
/* sysprof-capture-condition.c
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*
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* Copyright 2016-2019 Christian Hergert <chergert@redhat.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* Subject to the terms and conditions of this license, each copyright holder
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* and contributor hereby grants to those receiving rights under this license
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* a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
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* irrevocable (except for failure to satisfy the conditions of this license)
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* patent license to make, have made, use, offer to sell, sell, import, and
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* otherwise transfer this software, where such license applies only to those
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* patent claims, already acquired or hereafter acquired, licensable by such
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* copyright holder or contributor that are necessarily infringed by:
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*
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* (a) their Contribution(s) (the licensed copyrights of copyright holders
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* and non-copyrightable additions of contributors, in source or binary
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* form) alone; or
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*
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* (b) combination of their Contribution(s) with the work of authorship to
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* which such Contribution(s) was added by such copyright holder or
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* contributor, if, at the time the Contribution is added, such addition
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* causes such combination to be necessarily infringed. The patent license
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* shall not apply to any other combinations which include the
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* Contribution.
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*
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* Except as expressly stated above, no rights or licenses from any copyright
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* holder or contributor is granted under this license, whether expressly, by
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* implication, estoppel or otherwise.
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*
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* DISCLAIMER
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* SPDX-License-Identifier: BSD-2-Clause-Patent
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*/
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#define G_LOG_DOMAIN "sysprof-capture-condition"
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#include "config.h"
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#include <string.h>
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#include "sysprof-capture-condition.h"
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/**
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* SECTION:sysprof-capture-condition
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* @title: SysprofCaptureCondition
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*
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* The #SysprofCaptureCondition type is an abstraction on an operation
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* for a sort of AST to the #SysprofCaptureCursor. The goal is that if
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* we abstract the types of fields we want to match in the cursor
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* that we can opportunistically add indexes to speed up the operation
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* later on without changing the implementation of cursor consumers.
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*/
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typedef enum
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{
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SYSPROF_CAPTURE_CONDITION_AND,
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SYSPROF_CAPTURE_CONDITION_OR,
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SYSPROF_CAPTURE_CONDITION_WHERE_TYPE_IN,
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SYSPROF_CAPTURE_CONDITION_WHERE_TIME_BETWEEN,
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SYSPROF_CAPTURE_CONDITION_WHERE_PID_IN,
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SYSPROF_CAPTURE_CONDITION_WHERE_COUNTER_IN,
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SYSPROF_CAPTURE_CONDITION_WHERE_FILE,
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} SysprofCaptureConditionType;
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struct _SysprofCaptureCondition
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{
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volatile gint ref_count;
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SysprofCaptureConditionType type;
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union {
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GArray *where_type_in;
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struct {
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gint64 begin;
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gint64 end;
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} where_time_between;
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GArray *where_pid_in;
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GArray *where_counter_in;
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struct {
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SysprofCaptureCondition *left;
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SysprofCaptureCondition *right;
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} and, or;
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gchar *where_file;
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} u;
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};
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gboolean
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sysprof_capture_condition_match (const SysprofCaptureCondition *self,
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const SysprofCaptureFrame *frame)
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{
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g_assert (self != NULL);
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g_assert (frame != NULL);
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switch (self->type)
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{
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case SYSPROF_CAPTURE_CONDITION_AND:
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return sysprof_capture_condition_match (self->u.and.left, frame) &&
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sysprof_capture_condition_match (self->u.and.right, frame);
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case SYSPROF_CAPTURE_CONDITION_OR:
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return sysprof_capture_condition_match (self->u.or.left, frame) ||
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sysprof_capture_condition_match (self->u.or.right, frame);
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case SYSPROF_CAPTURE_CONDITION_WHERE_TYPE_IN:
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for (guint i = 0; i < self->u.where_type_in->len; i++)
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{
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if (frame->type == g_array_index (self->u.where_type_in, SysprofCaptureFrameType, i))
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return TRUE;
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}
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return FALSE;
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case SYSPROF_CAPTURE_CONDITION_WHERE_TIME_BETWEEN:
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return (frame->time >= self->u.where_time_between.begin && frame->time <= self->u.where_time_between.end);
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case SYSPROF_CAPTURE_CONDITION_WHERE_PID_IN:
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for (guint i = 0; i < self->u.where_pid_in->len; i++)
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{
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if (frame->pid == g_array_index (self->u.where_pid_in, gint32, i))
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return TRUE;
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}
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return FALSE;
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case SYSPROF_CAPTURE_CONDITION_WHERE_COUNTER_IN:
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if (frame->type == SYSPROF_CAPTURE_FRAME_CTRSET)
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{
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const SysprofCaptureCounterSet *set = (SysprofCaptureCounterSet *)frame;
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for (guint i = 0; i < self->u.where_counter_in->len; i++)
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{
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guint counter = g_array_index (self->u.where_counter_in, guint, i);
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for (guint j = 0; j < set->n_values; j++)
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{
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if (counter == set->values[j].ids[0] ||
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counter == set->values[j].ids[1] ||
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counter == set->values[j].ids[2] ||
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counter == set->values[j].ids[3] ||
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counter == set->values[j].ids[4] ||
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counter == set->values[j].ids[5] ||
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counter == set->values[j].ids[6] ||
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counter == set->values[j].ids[7])
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return TRUE;
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}
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}
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}
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else if (frame->type == SYSPROF_CAPTURE_FRAME_CTRDEF)
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{
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const SysprofCaptureCounterDefine *def = (SysprofCaptureCounterDefine *)frame;
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for (guint i = 0; i < self->u.where_counter_in->len; i++)
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{
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guint counter = g_array_index (self->u.where_counter_in, guint, i);
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for (guint j = 0; j < def->n_counters; j++)
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{
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if (def->counters[j].id == counter)
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return TRUE;
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}
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}
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}
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return FALSE;
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case SYSPROF_CAPTURE_CONDITION_WHERE_FILE:
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if (frame->type != SYSPROF_CAPTURE_FRAME_FILE_CHUNK)
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return FALSE;
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return g_strcmp0 (((const SysprofCaptureFileChunk *)frame)->path, self->u.where_file) == 0;
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default:
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break;
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}
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g_assert_not_reached ();
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return FALSE;
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}
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static SysprofCaptureCondition *
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sysprof_capture_condition_init (void)
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{
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SysprofCaptureCondition *self;
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self = g_slice_new0 (SysprofCaptureCondition);
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self->ref_count = 1;
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return g_steal_pointer (&self);
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}
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SysprofCaptureCondition *
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sysprof_capture_condition_copy (const SysprofCaptureCondition *self)
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{
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switch (self->type)
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{
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case SYSPROF_CAPTURE_CONDITION_AND:
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return sysprof_capture_condition_new_and (
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sysprof_capture_condition_copy (self->u.and.left),
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sysprof_capture_condition_copy (self->u.and.right));
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case SYSPROF_CAPTURE_CONDITION_OR:
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return sysprof_capture_condition_new_or (
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sysprof_capture_condition_copy (self->u.or.left),
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sysprof_capture_condition_copy (self->u.or.right));
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case SYSPROF_CAPTURE_CONDITION_WHERE_TYPE_IN:
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return sysprof_capture_condition_new_where_type_in (
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self->u.where_type_in->len,
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(const SysprofCaptureFrameType *)(gpointer)self->u.where_type_in->data);
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case SYSPROF_CAPTURE_CONDITION_WHERE_TIME_BETWEEN:
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return sysprof_capture_condition_new_where_time_between (
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self->u.where_time_between.begin,
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self->u.where_time_between.end);
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case SYSPROF_CAPTURE_CONDITION_WHERE_PID_IN:
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return sysprof_capture_condition_new_where_pid_in (
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self->u.where_pid_in->len,
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(const gint32 *)(gpointer)self->u.where_pid_in->data);
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case SYSPROF_CAPTURE_CONDITION_WHERE_COUNTER_IN:
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return sysprof_capture_condition_new_where_counter_in (
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self->u.where_counter_in->len,
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(const guint *)(gpointer)self->u.where_counter_in->data);
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case SYSPROF_CAPTURE_CONDITION_WHERE_FILE:
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return sysprof_capture_condition_new_where_file (self->u.where_file);
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default:
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break;
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}
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g_return_val_if_reached (NULL);
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}
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static void
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sysprof_capture_condition_finalize (SysprofCaptureCondition *self)
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{
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switch (self->type)
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{
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case SYSPROF_CAPTURE_CONDITION_AND:
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sysprof_capture_condition_unref (self->u.and.left);
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sysprof_capture_condition_unref (self->u.and.right);
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break;
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case SYSPROF_CAPTURE_CONDITION_OR:
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sysprof_capture_condition_unref (self->u.or.left);
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sysprof_capture_condition_unref (self->u.or.right);
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break;
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case SYSPROF_CAPTURE_CONDITION_WHERE_TYPE_IN:
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g_array_free (self->u.where_type_in, TRUE);
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break;
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case SYSPROF_CAPTURE_CONDITION_WHERE_TIME_BETWEEN:
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break;
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case SYSPROF_CAPTURE_CONDITION_WHERE_PID_IN:
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g_array_free (self->u.where_pid_in, TRUE);
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break;
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case SYSPROF_CAPTURE_CONDITION_WHERE_COUNTER_IN:
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g_array_free (self->u.where_counter_in, TRUE);
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break;
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case SYSPROF_CAPTURE_CONDITION_WHERE_FILE:
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g_free (self->u.where_file);
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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g_slice_free (SysprofCaptureCondition, self);
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}
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SysprofCaptureCondition *
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sysprof_capture_condition_ref (SysprofCaptureCondition *self)
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{
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g_return_val_if_fail (self != NULL, NULL);
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g_return_val_if_fail (self->ref_count > 0, NULL);
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g_atomic_int_inc (&self->ref_count);
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return self;
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}
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void
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sysprof_capture_condition_unref (SysprofCaptureCondition *self)
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{
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g_return_if_fail (self != NULL);
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g_return_if_fail (self->ref_count > 0);
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if (g_atomic_int_dec_and_test (&self->ref_count))
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sysprof_capture_condition_finalize (self);
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}
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SysprofCaptureCondition *
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sysprof_capture_condition_new_where_type_in (guint n_types,
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const SysprofCaptureFrameType *types)
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{
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SysprofCaptureCondition *self;
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g_return_val_if_fail (types != NULL, NULL);
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self = sysprof_capture_condition_init ();
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self->type = SYSPROF_CAPTURE_CONDITION_WHERE_TYPE_IN;
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self->u.where_type_in = g_array_sized_new (FALSE, FALSE, sizeof (SysprofCaptureFrameType), n_types);
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g_array_set_size (self->u.where_type_in, n_types);
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memcpy (self->u.where_type_in->data, types, sizeof (SysprofCaptureFrameType) * n_types);
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return self;
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}
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SysprofCaptureCondition *
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sysprof_capture_condition_new_where_time_between (gint64 begin_time,
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gint64 end_time)
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{
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SysprofCaptureCondition *self;
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if G_UNLIKELY (begin_time > end_time)
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{
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gint64 tmp = begin_time;
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begin_time = end_time;
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end_time = tmp;
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}
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self = sysprof_capture_condition_init ();
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self->type = SYSPROF_CAPTURE_CONDITION_WHERE_TIME_BETWEEN;
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self->u.where_time_between.begin = begin_time;
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self->u.where_time_between.end = end_time;
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return self;
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}
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SysprofCaptureCondition *
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sysprof_capture_condition_new_where_pid_in (guint n_pids,
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const gint32 *pids)
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{
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SysprofCaptureCondition *self;
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g_return_val_if_fail (pids != NULL, NULL);
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self = sysprof_capture_condition_init ();
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self->type = SYSPROF_CAPTURE_CONDITION_WHERE_PID_IN;
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self->u.where_pid_in = g_array_sized_new (FALSE, FALSE, sizeof (gint32), n_pids);
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g_array_set_size (self->u.where_pid_in, n_pids);
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memcpy (self->u.where_pid_in->data, pids, sizeof (gint32) * n_pids);
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return self;
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}
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SysprofCaptureCondition *
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sysprof_capture_condition_new_where_counter_in (guint n_counters,
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const guint *counters)
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{
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SysprofCaptureCondition *self;
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g_return_val_if_fail (counters != NULL || n_counters == 0, NULL);
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self = sysprof_capture_condition_init ();
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self->type = SYSPROF_CAPTURE_CONDITION_WHERE_COUNTER_IN;
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self->u.where_counter_in = g_array_sized_new (FALSE, FALSE, sizeof (guint), n_counters);
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if (n_counters > 0)
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{
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g_array_set_size (self->u.where_counter_in, n_counters);
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memcpy (self->u.where_counter_in->data, counters, sizeof (guint) * n_counters);
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}
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return self;
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}
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/**
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* sysprof_capture_condition_new_and:
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* @left: (transfer full): An #SysprofCaptureCondition
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* @right: (transfer full): An #SysprofCaptureCondition
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*
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* Creates a new #SysprofCaptureCondition that requires both left and right
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* to evaluate to %TRUE.
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*
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* Returns: (transfer full): A new #SysprofCaptureCondition.
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*/
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SysprofCaptureCondition *
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sysprof_capture_condition_new_and (SysprofCaptureCondition *left,
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SysprofCaptureCondition *right)
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{
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SysprofCaptureCondition *self;
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g_return_val_if_fail (left != NULL, NULL);
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g_return_val_if_fail (right != NULL, NULL);
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self = sysprof_capture_condition_init ();
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self->type = SYSPROF_CAPTURE_CONDITION_AND;
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self->u.and.left = left;
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self->u.and.right = right;
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return self;
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}
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/**
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* sysprof_capture_condition_new_or:
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* @left: (transfer full): An #SysprofCaptureCondition
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* @right: (transfer full): An #SysprofCaptureCondition
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*
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* Creates a new #SysprofCaptureCondition that requires either left and right
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* to evaluate to %TRUE.
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*
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* Returns: (transfer full): A new #SysprofCaptureCondition.
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*/
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SysprofCaptureCondition *
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sysprof_capture_condition_new_or (SysprofCaptureCondition *left,
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SysprofCaptureCondition *right)
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{
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SysprofCaptureCondition *self;
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g_return_val_if_fail (left != NULL, NULL);
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g_return_val_if_fail (right != NULL, NULL);
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self = sysprof_capture_condition_init ();
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self->type = SYSPROF_CAPTURE_CONDITION_OR;
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self->u.or.left = left;
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self->u.or.right = right;
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return self;
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}
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/**
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* sysprof_capture_condition_new_where_file:
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* @path: a file path to lookup
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*
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* Creates a new condition that matches #SysprofCaptureFileChunk frames
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* which contain the path @path.
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*
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* Returns: (transfer full): a new #SysprofCaptureCondition
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*/
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SysprofCaptureCondition *
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sysprof_capture_condition_new_where_file (const gchar *path)
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{
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SysprofCaptureCondition *self;
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g_return_val_if_fail (path != NULL, NULL);
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self = sysprof_capture_condition_init ();
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self->type = SYSPROF_CAPTURE_CONDITION_WHERE_FILE;
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self->u.where_file = g_strdup (path);
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return self;
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}
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