Fix the formatting to use tabs instead of spaces, easier to read this way.
This commit is contained in:
Justin Crawford
parent
86bdac97f8
commit
c14c56c7ef
@ -22,169 +22,170 @@
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float cpu_percentage( unsigned int cpu_usage_delay )
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{
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std::string stat_line;
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size_t line_start_pos;
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size_t line_end_pos;
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unsigned long long current_user;
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unsigned long long current_system;
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unsigned long long current_nice;
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unsigned long long current_idle;
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unsigned long long next_user;
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unsigned long long next_system;
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unsigned long long next_nice;
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unsigned long long next_idle;
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unsigned long long diff_user;
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unsigned long long diff_system;
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unsigned long long diff_nice;
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unsigned long long diff_idle;
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std::istringstream iss;
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std::string stat_line;
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size_t line_start_pos;
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size_t line_end_pos;
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unsigned long long current_user;
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unsigned long long current_system;
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unsigned long long current_nice;
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unsigned long long current_idle;
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unsigned long long next_user;
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unsigned long long next_system;
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unsigned long long next_nice;
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unsigned long long next_idle;
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unsigned long long diff_user;
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unsigned long long diff_system;
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unsigned long long diff_nice;
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unsigned long long diff_idle;
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std::istringstream iss;
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std::ifstream stat_file("/proc/stat");
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std::getline(stat_file, stat_line);
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stat_file.close();
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std::ifstream stat_file("/proc/stat");
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std::getline(stat_file, stat_line);
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stat_file.close();
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// skip "cpu"
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line_start_pos = stat_line.find_first_not_of(" ", 3);
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line_end_pos = stat_line.find_first_of(' ', line_start_pos);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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// skip "cpu"
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line_start_pos = stat_line.find_first_not_of(" ", 3);
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line_end_pos = stat_line.find_first_of(' ', line_start_pos);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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iss.str( stat_line.substr( line_start_pos, line_end_pos - line_start_pos ) );
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iss >> current_user >> current_nice >> current_system >> current_idle;
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iss.clear();
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iss.str( stat_line.substr( line_start_pos, line_end_pos - line_start_pos ) );
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iss >> current_user >> current_nice >> current_system >> current_idle;
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iss.clear();
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usleep( cpu_usage_delay );
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usleep( cpu_usage_delay );
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stat_file.open("/proc/stat");
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std::getline(stat_file, stat_line);
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stat_file.close();
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stat_file.open("/proc/stat");
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std::getline(stat_file, stat_line);
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stat_file.close();
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// skip "cpu"
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line_start_pos = stat_line.find_first_not_of(" ", 3);
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line_end_pos = stat_line.find_first_of(' ', line_start_pos);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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// skip "cpu"
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line_start_pos = stat_line.find_first_not_of(" ", 3);
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line_end_pos = stat_line.find_first_of(' ', line_start_pos);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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line_end_pos = stat_line.find_first_of(' ', line_end_pos + 1);
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iss.str( stat_line.substr( line_start_pos, line_end_pos - line_start_pos ) );
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iss >> next_user >> next_nice >> next_system >> next_idle;
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iss.clear();
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iss.str( stat_line.substr( line_start_pos, line_end_pos - line_start_pos ) );
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iss >> next_user >> next_nice >> next_system >> next_idle;
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iss.clear();
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diff_user = next_user - current_user;
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diff_system = next_system - current_system;
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diff_nice = next_nice - current_nice;
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diff_idle = next_idle - current_idle;
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diff_user = next_user - current_user;
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diff_system = next_system - current_system;
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diff_nice = next_nice - current_nice;
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diff_idle = next_idle - current_idle;
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return static_cast<float>(diff_user + diff_system + diff_nice)/static_cast<float>(diff_user + diff_system + diff_nice + diff_idle)*100.0;
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return static_cast<float>(diff_user + diff_system + diff_nice)/static_cast<float>(diff_user + diff_system + diff_nice + diff_idle)*100.0;
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}
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std::string cpu_string( unsigned int cpu_usage_delay, unsigned int graph_lines )
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{
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std::string meter( graph_lines + 2, ' ' );
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meter[0] = '[';
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meter[meter.length() - 1] = ']';
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int meter_count = 0;
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float percentage;
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std::ostringstream oss;
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oss.precision( 1 );
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oss.setf( std::ios::fixed | std::ios::right );
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std::string meter( graph_lines + 2, ' ' );
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meter[0] = '[';
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meter[meter.length() - 1] = ']';
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int meter_count = 0;
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float percentage;
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std::ostringstream oss;
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oss.precision( 1 );
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oss.setf( std::ios::fixed | std::ios::right );
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percentage = cpu_percentage( cpu_usage_delay );
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float meter_step = 99.9 / graph_lines;
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meter_count = 1;
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while(meter_count*meter_step < percentage)
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{
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meter[meter_count] = '|';
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meter_count++;
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}
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percentage = cpu_percentage( cpu_usage_delay );
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float meter_step = 99.9 / graph_lines;
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meter_count = 1;
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while(meter_count*meter_step < percentage)
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{
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meter[meter_count] = '|';
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meter_count++;
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}
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oss << meter;
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oss.width( 5 );
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oss << percentage;
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oss << "%";
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oss << meter;
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oss.width( 5 );
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oss << percentage;
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oss << "%";
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return oss.str();
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return oss.str();
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}
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std::string mem_string()
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{
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unsigned int total_mem;
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unsigned int used_mem;
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unsigned int unused_mem;
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size_t line_start_pos;
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size_t line_end_pos;
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std::istringstream iss;
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std::ostringstream oss;
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std::string mem_line;
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unsigned int total_mem;
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unsigned int used_mem;
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unsigned int unused_mem;
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size_t line_start_pos;
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size_t line_end_pos;
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std::istringstream iss;
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std::ostringstream oss;
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std::string mem_line;
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std::ifstream meminfo_file( "/proc/meminfo" );
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std::getline( meminfo_file, mem_line );
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line_start_pos = mem_line.find_first_of( ':' );
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line_start_pos++;
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line_end_pos = mem_line.find_first_of( 'k' );
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iss.str( mem_line.substr( line_start_pos, line_end_pos - line_start_pos ) );
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iss >> total_mem;
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std::ifstream meminfo_file( "/proc/meminfo" );
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std::getline( meminfo_file, mem_line );
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line_start_pos = mem_line.find_first_of( ':' );
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line_start_pos++;
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line_end_pos = mem_line.find_first_of( 'k' );
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iss.str( mem_line.substr( line_start_pos, line_end_pos - line_start_pos ) );
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iss >> total_mem;
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used_mem = total_mem;
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used_mem = total_mem;
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for( unsigned int i = 0; i < 3; i++ )
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{
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std::getline( meminfo_file, mem_line );
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line_start_pos = mem_line.find_first_of( ':' );
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line_start_pos++;
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line_end_pos = mem_line.find_first_of( 'k' );
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iss.str( mem_line.substr( line_start_pos, line_end_pos - line_start_pos ) );
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iss >> unused_mem;
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used_mem -= unused_mem;
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}
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meminfo_file.close();
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for( unsigned int i = 0; i < 3; i++ )
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{
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std::getline( meminfo_file, mem_line );
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line_start_pos = mem_line.find_first_of( ':' );
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line_start_pos++;
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line_end_pos = mem_line.find_first_of( 'k' );
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iss.str( mem_line.substr( line_start_pos, line_end_pos - line_start_pos ) );
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iss >> unused_mem;
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used_mem -= unused_mem;
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}
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meminfo_file.close();
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oss << used_mem / 1024 << '/' << total_mem / 1024 << "MB";
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oss << used_mem / 1024 << '/' << total_mem / 1024 << "MB";
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return oss.str();
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return oss.str();
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}
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std::string load_string()
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{
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std::ifstream loadavg_file( "/proc/loadavg" );
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std::string load_line;
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std::getline( loadavg_file, load_line );
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loadavg_file.close();
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std::ifstream loadavg_file( "/proc/loadavg" );
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std::string load_line;
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std::getline( loadavg_file, load_line );
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loadavg_file.close();
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return load_line.substr( 0, 14 );
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return load_line.substr( 0, 14 );
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}
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int main(int argc, char** argv)
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{
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unsigned int cpu_usage_delay = 900000;
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unsigned int graph_lines = 10;
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try
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{
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std::istringstream iss;
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iss.exceptions ( std::ifstream::failbit | std::ifstream::badbit );
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if( argc > 1 )
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{
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iss.str( argv[1] );
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unsigned int status_interval;
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iss >> status_interval;
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cpu_usage_delay = status_interval * 1000000 - 100000;
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}
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if( argc > 2 )
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{
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iss.str( argv[2] );
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iss.clear();
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iss >> graph_lines;
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}
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}
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catch(const std::exception &e)
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{
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std::cerr << "Usage: " << argv[0] << " [tmux_status-interval(seconds)] [graph lines]" << std::endl;
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return 1;
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}
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unsigned int cpu_usage_delay = 900000;
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unsigned int graph_lines = 10;
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try
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{
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std::istringstream iss;
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iss.exceptions ( std::ifstream::failbit | std::ifstream::badbit );
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if( argc > 1 )
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{
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iss.str( argv[1] );
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unsigned int status_interval;
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iss >> status_interval;
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cpu_usage_delay = status_interval * 1000000 - 100000;
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}
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std::cout << mem_string() << ' ' << cpu_string( cpu_usage_delay, graph_lines ) << ' ' << load_string();
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if( argc > 2 )
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{
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iss.str( argv[2] );
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iss.clear();
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iss >> graph_lines;
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}
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}
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catch(const std::exception &e)
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{
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std::cerr << "Usage: " << argv[0] << " [tmux_status-interval(seconds)] [graph lines]" << std::endl;
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return 1;
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}
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return 0;
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std::cout << mem_string() << ' ' << cpu_string( cpu_usage_delay, graph_lines ) << ' ' << load_string();
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return 0;
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}
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