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analyse: move default chunk params into params header

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This commit is contained in:
Danny Robson 2020-12-06 08:48:20 +10:00
parent 7558c08e7d
commit f2afa2a421
2 changed files with 18 additions and 17 deletions
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6
emory/chunk/params.hpp
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@ -19,4 +19,10 @@ namespace emory::chunk {
/// The minimum number of bytes for a matching region.
std::ptrdiff_t minimum;
};
constexpr params DEFAULT_PARAMS {
.bits = 12,
.window = 8,
.minimum = 4096,
};
}

29
tools/analyse.cpp
View File

@ -69,32 +69,27 @@ enum {
};
static constexpr std::size_t DEFAULT_BITS = 12;
static constexpr std::size_t DEFAULT_WINDOW = 4;
static constexpr std::ptrdiff_t DEFAULT_MINIMUM = 512;
//-----------------------------------------------------------------------------
int main (int argc, char const **argv)
{
if (argc < NUM_ARGS_REQUIRED) {
std::cerr << "usage: " << argv[ARG_SELF] << " <input> <output> [bits] [window] [minimum]\n"
<< "default bits = " << DEFAULT_BITS << '\n'
<< "default window = " << DEFAULT_WINDOW << '\n'
<< "default minimum = " << DEFAULT_MINIMUM << '\n';
<< "default bits = " << emory::chunk::DEFAULT_PARAMS.bits << '\n'
<< "default window = " << emory::chunk::DEFAULT_PARAMS.window << '\n'
<< "default minimum = " << emory::chunk::DEFAULT_PARAMS.minimum << '\n';
return EXIT_FAILURE;
}
#define PARSE_DEFAULT(NAME, TYPE) \
argc > ARG_##NAME \
? cruft::parse::from_string<TYPE> (argv[ARG_##NAME]) \
: DEFAULT_##NAME
emory::chunk::params p = emory::chunk::DEFAULT_PARAMS;
if (argc > ARG_BITS)
p.window = cruft::parse::from_string<std::size_t> (argv[ARG_WINDOW]);
if (argc > ARG_WINDOW)
p.window = cruft::parse::from_string<std::size_t> (argv[ARG_BITS]);
if (argc > ARG_BITS)
p.minimum = cruft::parse::from_string<std::size_t> (argv[ARG_MINIMUM]);
std::cerr << p << '\n';
emory::chunk::params const p {
.bits = PARSE_DEFAULT (BITS, std::size_t),
.window = PARSE_DEFAULT (WINDOW, std::size_t),
.minimum = PARSE_DEFAULT (MINIMUM, std::ptrdiff_t),
};
cruft::mapped_file data (argv[ARGS_INPUT]);
std::cout << "size: " << data.size () << '\n';