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comparison foosdk/sdk/foobar2000/SDK/cfg_var_legacy.cpp @ 1:20d02a178406 default tip

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*: check in everything else yay
author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
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0:e9bb126753e7 1:20d02a178406
1 #include "foobar2000-sdk-pch.h"
2 #include "cfg_var_legacy.h"
3 #if FOOBAR2000_SUPPORT_CFG_VAR_DOWNGRADE
4 #include "configStore.h"
5 #include <mutex>
6 #endif
7
8
9 #ifdef FOOBAR2000_HAVE_CFG_VAR_LEGACY
10 #if FOOBAR2000_SUPPORT_CFG_VAR_DOWNGRADE
11 namespace fb2k {
12 pfc::string8 formatCfgVarName(const GUID&);
13 }
14 #endif // FOOBAR2000_SUPPORT_CFG_VAR_DOWNGRADE
15 namespace cfg_var_legacy {
16 cfg_var_reader* cfg_var_reader::g_list = NULL;
17 cfg_var_writer* cfg_var_writer::g_list = NULL;
18
19 void cfg_var_reader::config_read_file(stream_reader* p_stream, abort_callback& p_abort)
20 {
21 pfc::map_t<GUID, cfg_var_reader*> vars;
22 for (cfg_var_reader* walk = g_list; walk != NULL; walk = walk->m_next) {
23 vars.set(walk->m_guid, walk);
24 }
25 for (;;) {
26
27 GUID guid;
28 t_uint32 size;
29
30 if (p_stream->read(&guid, sizeof(guid), p_abort) != sizeof(guid)) break;
31 guid = pfc::byteswap_if_be_t(guid);
32 p_stream->read_lendian_t(size, p_abort);
33
34 auto iter = vars.find(guid);
35 if ( iter.is_valid() ) {
36 stream_reader_limited_ref wrapper(p_stream, size);
37 try {
38 iter->m_value->set_data_raw(&wrapper, size, p_abort);
39 } catch (exception_io_data const&) {}
40 wrapper.flush_remaining(p_abort);
41 } else {
42 p_stream->skip_object(size, p_abort);
43 }
44 }
45 }
46 #if FOOBAR2000_SUPPORT_CFG_VAR_DOWNGRADE
47 static std::once_flag downgrade_once;
48 void cfg_var_reader::downgrade_main() {
49 std::call_once(downgrade_once, [] {
50 auto api = fb2k::configStore::tryGet();
51 if (api.is_valid()) {
52 for (cfg_var_reader* walk = g_list; walk != NULL; walk = walk->m_next) {
53 walk->downgrade_check(api);
54 }
55 }
56 });
57 }
58 #endif
59 void cfg_var_writer::config_write_file(stream_writer* p_stream, abort_callback& p_abort) {
60 cfg_var_writer* ptr;
61 pfc::array_t<t_uint8, pfc::alloc_fast_aggressive> temp;
62 for (ptr = g_list; ptr; ptr = ptr->m_next) {
63 temp.set_size(0);
64 {
65 stream_writer_buffer_append_ref_t<pfc::array_t<t_uint8, pfc::alloc_fast_aggressive> > stream(temp);
66 ptr->get_data_raw(&stream, p_abort);
67 }
68 p_stream->write_lendian_t(ptr->m_guid, p_abort);
69 p_stream->write_lendian_t(pfc::downcast_guarded<t_uint32>(temp.get_size()), p_abort);
70 if (temp.get_size() > 0) {
71 p_stream->write_object(temp.get_ptr(), temp.get_size(), p_abort);
72 }
73 }
74 }
75
76
77 void cfg_string::get_data_raw(stream_writer* p_stream, abort_callback& p_abort) {
78 p_stream->write_object(get_ptr(), length(), p_abort);
79 }
80
81 void cfg_string::set_data_raw(stream_reader* p_stream, t_size p_sizehint, abort_callback& p_abort) {
82 (void)p_sizehint;
83 pfc::string8_fastalloc temp;
84 p_stream->read_string_raw(temp, p_abort);
85 set_string(temp);
86 }
87
88
89 #if FOOBAR2000_SUPPORT_CFG_VAR_DOWNGRADE
90 int64_t downgrade_this(fb2k::configStore::ptr api, const char * name, int64_t current) {
91 int64_t v = api->getConfigInt(name, INT64_MAX);
92 if (v == INT64_MAX) {
93 v = api->getConfigInt(name, INT64_MIN);
94 if ( v == INT64_MIN ) return current;
95 }
96 api->deleteConfigInt(name);
97 return v;
98 }
99 uint64_t downgrade_this(fb2k::configStore::ptr api, const char * name, uint64_t current) {
100 return (uint64_t) downgrade_this(api, name, (int64_t) current);
101 }
102 int32_t downgrade_this(fb2k::configStore::ptr api, const char * name, int32_t current) {
103 return (int32_t) downgrade_this(api, name, (int64_t) current);
104 }
105 uint32_t downgrade_this(fb2k::configStore::ptr api, const char * name, uint32_t current) {
106 return (uint32_t) downgrade_this(api, name, (int64_t) current);
107 }
108 bool downgrade_this(fb2k::configStore::ptr api, const char * name, bool current) {
109 return downgrade_this(api, name, (int64_t)(current?1:0)) != 0;
110 }
111 double downgrade_this(fb2k::configStore::ptr api, const char * name, double current) {
112 double v = api->getConfigFloat(name, -1);
113 if (v == -1) {
114 v = api->getConfigFloat(name, 0);
115 if ( v == 0 ) return current;
116 }
117 api->deleteConfigFloat(name);
118 return v;
119 }
120 GUID downgrade_this(fb2k::configStore::ptr api, const char * name, GUID current) {
121 auto blob = api->getConfigBlob( name );
122 if (blob.is_valid() && blob->size() == sizeof(GUID)) {
123 GUID ret;
124 memcpy(&ret, blob->get_ptr(), sizeof(ret));
125 api->deleteConfigBlob( name );
126 return ret;
127 }
128 return current;
129 }
130
131 void cfg_string::downgrade_check(fb2k::configStore::ptr api) {
132 const auto name = this->downgrade_name();
133 auto v = api->getConfigString(name, nullptr);
134 if (v.is_valid()) {
135 this->set(v->c_str());
136 api->deleteConfigString(name);
137 }
138 }
139 void cfg_string_mt::downgrade_check(fb2k::configStore::ptr api) {
140 const auto name = this->downgrade_name();
141 auto v = api->getConfigString(name, nullptr);
142 if (v.is_valid()) {
143 this->set(v->c_str());
144 api->deleteConfigString(name);
145 }
146 }
147
148 pfc::string8 cfg_var_reader::downgrade_name() const {
149 if (m_downgrade_name.length() > 0) {
150 return m_downgrade_name;
151 } else {
152 return fb2k::formatCfgVarName(this->m_guid);
153 }
154 }
155 #endif
156
157 }
158 #endif // FOOBAR2000_HAVE_CFG_VAR_LEGACY