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test/run_input: add option --seek

This commit is contained in:
Max Kellermann 2021-02-07 21:17:24 +01:00
parent 8695a2806a
commit c58c53293c
1 changed files with 14 additions and 2 deletions
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16
test/run_input.cxx
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@ -56,6 +56,8 @@ struct CommandLine {
FromNarrowPath config_path;
std::size_t seek = 0;
std::size_t chunk_size = MAX_CHUNK_SIZE;
bool verbose = false;
@ -67,6 +69,7 @@ enum Option {
OPTION_CONFIG,
OPTION_VERBOSE,
OPTION_SCAN,
OPTION_SEEK,
OPTION_CHUNK_SIZE,
};
@ -74,6 +77,7 @@ static constexpr OptionDef option_defs[] = {
{"config", 0, true, "Load a MPD configuration file"},
{"verbose", 'v', false, "Verbose logging"},
{"scan", 0, false, "Scan tags instead of reading raw data"},
{"seek", 0, true, "Start reading at this position"},
{"chunk-size", 0, true, "Read this number of bytes at a time"},
};
@ -108,6 +112,10 @@ ParseCommandLine(int argc, char **argv)
c.scan = true;
break;
case OPTION_SEEK:
c.seek = ParseSize(o.value);
break;
case OPTION_CHUNK_SIZE:
c.chunk_size = ParseSize(o.value);
if (c.chunk_size <= 0 || c.chunk_size > MAX_CHUNK_SIZE)
@ -153,10 +161,14 @@ tag_save(FILE *file, const Tag &tag)
}
static int
dump_input_stream(InputStream &is, FileDescriptor out, size_t chunk_size)
dump_input_stream(InputStream &is, FileDescriptor out,
offset_type seek, size_t chunk_size)
{
std::unique_lock<Mutex> lock(is.mutex);
if (seek > 0)
is.Seek(lock, seek);
/* print meta data */
if (is.HasMimeType())
@ -256,7 +268,7 @@ try {
Mutex mutex;
auto is = InputStream::OpenReady(c.uri, mutex);
return dump_input_stream(*is, FileDescriptor(STDOUT_FILENO),
c.chunk_size);
c.seek, c.chunk_size);
} catch (...) {
PrintException(std::current_exception());
return EXIT_FAILURE;