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28a4c9c5 | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
28a4c9c5 JH |
3 | * |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
1b1ec774 | 21 | #include "snapshot.h" |
28a4c9c5 | 22 | |
f556bc6a JH |
23 | #include <assert.h> |
24 | #include <stdlib.h> | |
25 | #include <string.h> | |
26 | ||
7d29656f JH |
27 | using namespace boost; |
28 | ||
51e77110 | 29 | namespace pv { |
1b1ec774 | 30 | namespace data { |
51e77110 | 31 | |
1b1ec774 | 32 | Snapshot::Snapshot(int unit_size) : |
f556bc6a | 33 | _data(NULL), |
77bff0b1 | 34 | _sample_count(0), |
f556bc6a JH |
35 | _unit_size(unit_size) |
36 | { | |
7d29656f | 37 | lock_guard<recursive_mutex> lock(_mutex); |
f556bc6a JH |
38 | assert(_unit_size > 0); |
39 | } | |
40 | ||
1b1ec774 | 41 | Snapshot::~Snapshot() |
28a4c9c5 | 42 | { |
7d29656f | 43 | lock_guard<recursive_mutex> lock(_mutex); |
f556bc6a | 44 | free(_data); |
28a4c9c5 JH |
45 | } |
46 | ||
e7c6e898 | 47 | uint64_t Snapshot::get_sample_count() const |
28a4c9c5 | 48 | { |
7d29656f | 49 | lock_guard<recursive_mutex> lock(_mutex); |
77bff0b1 | 50 | return _sample_count; |
f556bc6a JH |
51 | } |
52 | ||
1b1ec774 | 53 | void Snapshot::append_data(void *data, uint64_t samples) |
f556bc6a | 54 | { |
7d29656f | 55 | lock_guard<recursive_mutex> lock(_mutex); |
067e5d90 JH |
56 | _data = realloc(_data, (_sample_count + samples) * _unit_size + |
57 | sizeof(uint64_t)); | |
77bff0b1 JH |
58 | memcpy((uint8_t*)_data + _sample_count * _unit_size, |
59 | data, samples * _unit_size); | |
60 | _sample_count += samples; | |
28a4c9c5 | 61 | } |
51e77110 | 62 | |
1b1ec774 | 63 | } // namespace data |
51e77110 | 64 | } // namespace pv |