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[wrap] compute line size for logs and cache the value

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This commit is contained in:
Timothy Stack 2013-11-09 17:14:40 -08:00
parent f867b9cc63
commit 7df2470624
2 changed files with 27 additions and 7 deletions
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4
src/logfile_sub_source.cc
View File

@ -121,7 +121,9 @@ logfile_sub_source::logfile_sub_source()
: lss_flags(0),
lss_filter_generation(1),
lss_filtered_count(0)
{}
{
this->clear_line_size_cache();
}
logfile_sub_source::~logfile_sub_source()
{ }

30
src/logfile_sub_source.hh
View File

@ -110,9 +110,15 @@ public:
return retval;
};
void toggle_scrub(void) { this->lss_flags ^= F_SCRUB; };
void toggle_scrub(void) {
this->lss_flags ^= F_SCRUB;
this->clear_line_size_cache();
};
void toggle_time_offset(void) { this->lss_flags ^= F_TIME_OFFSET; };
void toggle_time_offset(void) {
this->lss_flags ^= F_TIME_OFFSET;
this->clear_line_size_cache();
};
size_t text_line_count()
{
@ -131,11 +137,16 @@ public:
string_attrs_t &value_out);
size_t text_size_for_line(textview_curses &tc, int row, bool raw) {
content_line_t line = this->lss_index[row];
logfile *lf = this->find(line);
logfile::iterator ll = lf->begin() + line;
size_t index = row % LINE_SIZE_CACHE_SIZE;
return lf->line_length(ll) + (this->lss_flags & F_TIME_OFFSET ? 13 : 0);
if (this->lss_line_size_cache[index].first != row) {
std::string value;
this->text_value_for_line(tc, row, value, raw);
this->lss_line_size_cache[index].second = value.size();
this->lss_line_size_cache[index].first = row;
}
return this->lss_line_size_cache[index].second;
};
void text_mark(bookmark_type_t *bm, int line, bool added)
@ -354,6 +365,8 @@ public:
static const size_t MAX_FILES = INT_MAX / MAX_LINES_PER_FILE;
private:
static const size_t LINE_SIZE_CACHE_SIZE = 512;
enum {
B_SCRUB,
B_TIME_OFFSET,
@ -398,6 +411,10 @@ private:
logfile *lde_file;
};
void clear_line_size_cache(void) {
memset(this->lss_line_size_cache, 0, sizeof(this->lss_line_size_cache));
};
unsigned long lss_flags;
std::vector<logfile_data> lss_files;
@ -416,5 +433,6 @@ private:
int lss_token_offset;
int lss_token_date_end;
logfile::iterator lss_token_line;
std::pair<int, size_t> lss_line_size_cache[LINE_SIZE_CACHE_SIZE];
};
#endif