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Code Issues Releases Wiki Activity

xz: Edit comments and coding style 

(cherry picked from commit e4780244a1)
This commit is contained in:
Lasse Collin 2024-05-07 13:12:17 +03:00
parent 18683525a7
commit 1b4e7dca24
1 changed files with 12 additions and 13 deletions
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25
src/xz/coder.c
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@ -144,6 +144,7 @@ coder_add_filter(lzma_vli id, void *options)
filters[0][filters_count].id = id; filters[0][filters_count].id = id;
filters[0][filters_count].options = options; filters[0][filters_count].options = options;
// Terminate the filter chain with LZMA_VLI_UNKNOWN to simplify // Terminate the filter chain with LZMA_VLI_UNKNOWN to simplify
// implementation of forget_filter_chain(). // implementation of forget_filter_chain().
filters[0][++filters_count].id = LZMA_VLI_UNKNOWN; filters[0][++filters_count].id = LZMA_VLI_UNKNOWN;
@ -246,16 +247,16 @@ validate_block_list_filter(const uint32_t filter_num)
} }
// Sets the memory usage for each filter chain. It will return the maximum // Calculate the memory usage of each filter chain.
// memory usage of all of the filter chains. // Return the maximum memory usage of all of the filter chains.
static uint64_t static uint64_t
filters_memusage_max(const lzma_mt *mt, bool encode) filters_memusage_max(const lzma_mt *mt, bool encode)
{ {
uint64_t max_memusage = 0; uint64_t max_memusage = 0;
#ifdef MYTHREAD_ENABLED #ifdef MYTHREAD_ENABLED
// Copy multithreaded options to a temporary struct since the // Copy multithreading options to a temporary struct since the
// filters member needs to be changed // "filters" member needs to be changed.
lzma_mt mt_local; lzma_mt mt_local;
if (mt != NULL) if (mt != NULL)
mt_local = *mt; mt_local = *mt;
@ -273,15 +274,12 @@ filters_memusage_max(const lzma_mt *mt, bool encode)
mt_local.filters = filters[i]; mt_local.filters = filters[i];
memusage = lzma_stream_encoder_mt_memusage(&mt_local); memusage = lzma_stream_encoder_mt_memusage(&mt_local);
filter_memusages[i] = memusage; filter_memusages[i] = memusage;
} } else
else
#endif #endif
if (encode) { if (encode) {
memusage = lzma_raw_encoder_memusage(filters[i]); memusage = lzma_raw_encoder_memusage(filters[i]);
filter_memusages[i] = memusage; filter_memusages[i] = memusage;
} }
#ifdef HAVE_DECODERS #ifdef HAVE_DECODERS
else { else {
memusage = lzma_raw_decoder_memusage(filters[i]); memusage = lzma_raw_decoder_memusage(filters[i]);
@ -294,9 +292,9 @@ filters_memusage_max(const lzma_mt *mt, bool encode)
return max_memusage; return max_memusage;
} }
#endif #endif
extern void extern void
coder_set_compression_settings(void) coder_set_compression_settings(void)
{ {
@ -335,7 +333,8 @@ coder_set_compression_settings(void)
} }
assert(filters_ref_mask != 0); assert(filters_ref_mask != 0);
// Note: The filters that were initialized but not used do
// NOTE: The filters that were initialized but not used do
// not free their options and do not have the filter // not free their options and do not have the filter
// IDs set to LZMA_VLI_UNKNOWN. Filter chains are not // IDs set to LZMA_VLI_UNKNOWN. Filter chains are not
// freed outside of debug mode and the default filter // freed outside of debug mode and the default filter
@ -465,6 +464,7 @@ coder_set_compression_settings(void)
mt_options.threads = hardware_threads_get(); mt_options.threads = hardware_threads_get();
uint64_t block_size = opt_block_size; uint64_t block_size = opt_block_size;
// If opt_block_size is not set, find the maximum // If opt_block_size is not set, find the maximum
// recommended Block size based on the filter chains // recommended Block size based on the filter chains
if (block_size == 0) { if (block_size == 0) {
@ -539,7 +539,7 @@ coder_set_compression_settings(void)
filters_memusage_max(NULL, false); filters_memusage_max(NULL, false);
#else #else
// If encoders are not enabled, then --block-list is never // If encoders are not enabled, then --block-list is never
// usable, so the other filter chains 1-9 can never be used. // usable and the filter chains 1-9 are never used.
// So there is no need to find the maximum decoder memory // So there is no need to find the maximum decoder memory
// required in this case. // required in this case.
const uint64_t decmem = lzma_raw_decoder_memusage(filters[0]); const uint64_t decmem = lzma_raw_decoder_memusage(filters[0]);
@ -736,8 +736,7 @@ coder_set_compression_settings(void)
if (filt_mem_usage < memory_limit) { if (filt_mem_usage < memory_limit) {
r->reduce_dict_size = false; r->reduce_dict_size = false;
count--; count--;
} } else {
else {
opt->dict_size -= UINT32_C(1) << 20; opt->dict_size -= UINT32_C(1) << 20;
} }
} }