1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
#include "luastrategy.h"
#include <stdexcept>
#include "datawrapper.h"
#include "functions.h"
#include "functionswrapper.h"
#include "scriptdata.h"
#include "tools.h"
LuaStrategy::LuaStrategy() : _state(luaL_newstate()) {}
LuaStrategy::LuaStrategy(LuaStrategy&& source) : _state(source._state) {
source._state = nullptr;
}
LuaStrategy& LuaStrategy::operator=(LuaStrategy&& source) {
std::swap(_state, source._state);
return *this;
}
void LuaStrategy::clear() {
if (_state) lua_close(_state);
_state = nullptr;
}
void LuaStrategy::check(lua_State* state, int error) {
if (error) {
const char* msg = lua_tostring(state, -1);
if (msg) {
const std::string str(msg);
lua_pop(state, 1); // pop error
throw std::runtime_error(str);
} else {
throw std::runtime_error("An unspecified error was thrown inside Lua");
}
}
}
void LuaStrategy::loadaoflagger() {
luaL_newmetatable(_state, "AOFlaggerData");
// Allow object access for AOFlaggerData structures
lua_pushstring(_state, "__index");
lua_pushvalue(_state, -2); /* pushes the AOFlaggerData metatable */
lua_settable(_state, -3); /* metatable.__index = metatable */
static const struct luaL_Reg aofdatamembers[] = {
{"clear_mask", Data::clear_mask},
{"convert_to_complex", Data::convert_to_complex},
{"convert_to_polarization", Data::convert_to_polarization},
{"copy", Data::copy},
{"flag_zeros", Data::flag_zeros},
{"flag_nans", Data::flag_nans},
{"get_antenna1_index", Data::get_antenna1_index},
{"get_antenna1_name", Data::get_antenna1_name},
{"get_antenna2_index", Data::get_antenna2_index},
{"get_antenna2_name", Data::get_antenna2_name},
{"get_antenna2_name", Data::get_antenna2_name},
{"get_baseline_angle", Data::get_baseline_angle},
{"get_baseline_distance", Data::get_baseline_distance},
{"get_baseline_vector", Data::get_baseline_vector},
{"get_complex_state", Data::get_complex_state},
{"get_frequencies", Data::get_frequencies},
{"get_polarizations", Data::get_polarizations},
{"get_times", Data::get_times},
{"has_metadata", Data::has_metadata},
{"invert_mask", Data::invert_mask},
{"is_auto_correlation", Data::is_auto_correlation},
{"is_complex", Data::is_complex},
{"join_mask", Data::join_mask},
{"set_mask", Data::set_mask},
{"set_mask_for_channel_range", Data::set_mask_for_channel_range},
{"set_masked_visibilities", Data::set_masked_visibilities},
{"set_polarization_data", Data::set_polarization_data},
{"set_visibilities", Data::set_visibilities},
{"__div", Data::div},
{"__gc", Data::gc},
{"__sub", Data::sub},
{nullptr, nullptr}};
luaL_setfuncs(_state, aofdatamembers, 0);
// New table for package
lua_newtable(_state);
static const struct luaL_Reg aoflib[] = {
{"apply_bandpass", Functions::apply_bandpass},
{"collect_statistics", Functions::collect_statistics},
{"copy_to_channel", Functions::copy_to_channel},
{"copy_to_frequency", Functions::copy_to_frequency},
{"downsample", Functions::downsample},
{"high_pass_filter", Functions::high_pass_filter},
{"low_pass_filter", Functions::low_pass_filter},
{"norm", Functions::norm},
{"normalize_bandpass", Functions::normalize_bandpass},
{"normalize_subbands", Functions::normalize_subbands},
{"print_polarization_statistics",
Functions::print_polarization_statistics},
{"require_min_version", Functions::require_min_version},
{"require_max_version", Functions::require_max_version},
{"save_heat_map", Functions::save_heat_map},
{"scale_invariant_rank_operator",
Functions::scale_invariant_rank_operator},
{"scale_invariant_rank_operator_masked",
Functions::scale_invariant_rank_operator_masked},
{"set_progress", Functions::set_progress},
{"set_progress_text", Functions::set_progress_text},
{"sqrt", Functions::sqrt},
{"sumthreshold", Functions::sumthreshold},
{"sumthreshold_masked", Functions::sumthreshold_masked},
{"threshold_channel_rms", Functions::threshold_channel_rms},
{"threshold_timestep_rms", Functions::threshold_timestep_rms},
{"trim_channels", Functions::trim_channels},
{"trim_frequencies", Functions::trim_frequencies},
{"upsample", Functions::upsample_image}, // DEPRECATED
{"upsample_image", Functions::upsample_image},
{"upsample_mask", Functions::upsample_mask},
{"visualize", Functions::visualize},
{nullptr, nullptr}};
luaL_setfuncs(_state, aoflib, 0);
// Name the package (which pops the table)
lua_setglobal(_state, "aoflagger");
}
void LuaStrategy::Initialize() {
luaL_openlibs(_state);
loadaoflagger();
}
void LuaStrategy::LoadFile(const char* filename) {
check(luaL_loadfile(_state, filename));
check(lua_pcall(_state, 0, 0, 0));
}
void LuaStrategy::LoadText(const std::string& data) {
check(luaL_loadstring(_state, data.c_str()));
check(lua_pcall(_state, 0, 0, 0));
}
void LuaStrategy::RunPreamble(const std::vector<std::string>& preamble) {
for (const std::string& str : preamble) {
luaL_loadstring(_state, str.c_str());
check(lua_pcall(_state, 0, 0, 0));
}
}
void LuaStrategy::Execute(TimeFrequencyData& tfData,
TimeFrequencyMetaDataCPtr metaData,
class ScriptData& scriptData,
const std::string& executeFunctionName) {
// store scriptData
lua_pushstring(_state, "AOFlagger.ScriptData");
lua_pushlightuserdata(_state, &scriptData);
// Set: registry["AOFlagger.ScriptData"] = scriptData
lua_settable(_state, LUA_REGISTRYINDEX);
lua_getglobal(_state, executeFunctionName.c_str());
if (lua_isnil(_state, -1)) {
throw std::runtime_error(
"The Lua script did not specify an execute function named " +
executeFunctionName + "().");
}
aoflagger_lua::Data* data =
Tools::NewData(_state, tfData, metaData, _context);
check(lua_pcall(_state, 1, 0, 0));
tfData = data->TFData();
for (aoflagger_lua::Data* data : _context.list) {
if (!data->is_persistent()) data->clear();
}
_context.list.clear();
}
std::string LuaStrategy::GetTemplateScript() {
return "function execute(data)\n"
"\n"
" data:clear_mask()\n"
" -- Insert detection code here\n"
"\n"
"end\n"
"\n"
"function options()\n"
" opts_main = {\n"
" [\"baselines\"] = \"cross\"\n"
" }\n"
" return { [\"main\"] = opts_main }\n"
"end\n";
}
|
