Rework process field print functions

Make functions formatting data for a process field column less error
prone, unify interfaces and improve some internals.

* Process_printBytes
  - rename from Process_humanNumber
  - take number in bytes, not kilobytes
  - handle petabytes
  - increase buffer to avoid crashes when the passed value is
    ~ ULLONG_MAX

* Process_printKBytes
  - add wrapper for Process_printBytes taking kilobytes keeping -1 as
  special value

* Process_printCount
  - rename from Process_colorNumber

* Process_printTime
  - add coloring parameter as other print functions
  - improve coloring and formatting for larger times

* Process_printRate
  - rename from Process_outputRate
  - use local buffer instead of passed one; this function prints to the
    RichString after all

1 files changed, 14 insertions, 9 deletions

diff --git a/Process.h b/Process.h
index a0bdea74..9887bd13 100644
--- a/Process.h
+++ b/Process.h
@@ -245,27 +245,32 @@ static inline bool Process_isChildOf(const Process* this, pid_t pid) {
 #define ONE_M (ONE_K * ONE_K)
 #define ONE_G (ONE_M * ONE_K)
 #define ONE_T (1ULL * ONE_G * ONE_K)
+#define ONE_P (1ULL * ONE_T * ONE_K)
 
 #define ONE_DECIMAL_K 1000UL
 #define ONE_DECIMAL_M (ONE_DECIMAL_K * ONE_DECIMAL_K)
 #define ONE_DECIMAL_G (ONE_DECIMAL_M * ONE_DECIMAL_K)
 #define ONE_DECIMAL_T (1ULL * ONE_DECIMAL_G * ONE_DECIMAL_K)
+#define ONE_DECIMAL_P (1ULL * ONE_DECIMAL_T * ONE_DECIMAL_K)
 
 void Process_setupColumnWidths(void);
 
-/* Takes number in kilo units (base 1024) */
-void Process_humanNumber(RichString* str, unsigned long long number, bool coloring);
+/* Takes number in bytes (base 1024). Prints 6 columns. */
+void Process_printBytes(RichString* str, unsigned long long number, bool coloring);
 
-/* Takes number in bare units (base 1000) */
-void Process_colorNumber(RichString* str, unsigned long long number, bool coloring);
+/* Takes number in kilo bytes (base 1024). Prints 6 columns. */
+void Process_printKBytes(RichString* str, unsigned long long number, bool coloring);
 
-/* Takes number in hundredths of a seconds */
-void Process_printTime(RichString* str, unsigned long long totalHundredths);
+/* Takes number as count (base 1000). Prints 12 columns. */
+void Process_printCount(RichString* str, unsigned long long number, bool coloring);
 
-void Process_fillStarttimeBuffer(Process* this);
+/* Takes time in hundredths of a seconds. Prints 9 columns. */
+void Process_printTime(RichString* str, unsigned long long totalHundredths, bool coloring);
+
+/* Takes rate in bare unit (base 1024) per second. Prints 12 columns. */
+void Process_printRate(RichString* str, double rate, bool coloring);
 
-/* Takes number in bare units (base 1024) */
-void Process_outputRate(RichString* str, char* buffer, size_t n, double rate, int coloring);
+void Process_fillStarttimeBuffer(Process* this);
 
 void Process_printLeftAlignedField(RichString* str, int attr, const char* content, unsigned int width);