New upstream version 3.3.0

1 files changed, 497 insertions, 0 deletions

diff --git a/Row.c b/Row.c
new file mode 100644
index 0000000..9ea3f07
--- /dev/null
+++ b/Row.c
@@ -0,0 +1,497 @@
+/*
+htop - Row.c
+(C) 2004-2015 Hisham H. Muhammad
+(C) 2020-2023 Red Hat, Inc.  All Rights Reserved.
+Released under the GNU GPLv2+, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "config.h" // IWYU pragma: keep
+
+#include "Row.h"
+
+#include <assert.h>
+#include <limits.h>
+#include <math.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "CRT.h"
+#include "DynamicColumn.h"
+#include "Hashtable.h"
+#include "Machine.h"
+#include "Macros.h"
+#include "Process.h"
+#include "RichString.h"
+#include "Settings.h"
+#include "XUtils.h"
+
+
+int Row_pidDigits = ROW_MIN_PID_DIGITS;
+int Row_uidDigits = ROW_MIN_UID_DIGITS;
+
+void Row_init(Row* this, const Machine* host) {
+   this->host = host;
+   this->tag = false;
+   this->showChildren = true;
+   this->show = true;
+   this->wasShown = false;
+   this->updated = false;
+}
+
+void Row_done(Row* this) {
+   assert(this != NULL);
+   (void) this;
+}
+
+static inline bool Row_isNew(const Row* this) {
+   const Machine* host = this->host;
+   if (host->monotonicMs < this->seenStampMs)
+      return false;
+
+   const Settings* settings = host->settings;
+   return host->monotonicMs - this->seenStampMs <= 1000 * (uint64_t)settings->highlightDelaySecs;
+}
+
+static inline bool Row_isTomb(const Row* this) {
+   return this->tombStampMs > 0;
+}
+
+void Row_display(const Object* cast, RichString* out) {
+   const Row* this = (const Row*) cast;
+   const Settings* settings = this->host->settings;
+   const RowField* fields = settings->ss->fields;
+
+   for (int i = 0; fields[i]; i++)
+      As_Row(this)->writeField(this, out, fields[i]);
+
+   if (Row_isHighlighted(this))
+      RichString_setAttr(out, CRT_colors[PROCESS_SHADOW]);
+
+   if (this->tag == true)
+      RichString_setAttr(out, CRT_colors[PROCESS_TAG]);
+
+   if (settings->highlightChanges) {
+      if (Row_isTomb(this))
+         out->highlightAttr = CRT_colors[PROCESS_TOMB];
+      else if (Row_isNew(this))
+         out->highlightAttr = CRT_colors[PROCESS_NEW];
+   }
+
+   assert(RichString_size(out) > 0);
+}
+
+void Row_setPidColumnWidth(pid_t maxPid) {
+   if (maxPid < (int)pow(10, ROW_MIN_PID_DIGITS)) {
+      Row_pidDigits = ROW_MIN_PID_DIGITS;
+      return;
+   }
+
+   Row_pidDigits = (int)log10(maxPid) + 1;
+   assert(Row_pidDigits <= ROW_MAX_PID_DIGITS);
+}
+
+void Row_setUidColumnWidth(uid_t maxUid) {
+   if (maxUid < (uid_t)pow(10, ROW_MIN_UID_DIGITS)) {
+      Row_uidDigits = ROW_MIN_UID_DIGITS;
+      return;
+   }
+
+   Row_uidDigits = (int)log10(maxUid) + 1;
+   assert(Row_uidDigits <= ROW_MAX_UID_DIGITS);
+}
+
+uint8_t Row_fieldWidths[LAST_PROCESSFIELD] = { 0 };
+
+void Row_resetFieldWidths(void) {
+   for (size_t i = 0; i < LAST_PROCESSFIELD; i++) {
+      if (!Process_fields[i].autoWidth)
+         continue;
+
+      size_t len = strlen(Process_fields[i].title);
+      assert(len <= UINT8_MAX);
+      Row_fieldWidths[i] = (uint8_t)len;
+   }
+}
+
+void Row_updateFieldWidth(RowField key, size_t width) {
+   if (width > UINT8_MAX)
+      Row_fieldWidths[key] = UINT8_MAX;
+   else if (width > Row_fieldWidths[key])
+      Row_fieldWidths[key] = (uint8_t)width;
+}
+
+// helper function to fill an aligned title string for a dynamic column
+static const char* alignedTitleDynamicColumn(const Settings* settings, int key, char* titleBuffer, size_t titleBufferSize) {
+   const DynamicColumn* column = Hashtable_get(settings->dynamicColumns, key);
+   if (column == NULL)
+      return "- ";
+
+   int width = column->width;
+   if (!width || abs(width) > DYNAMIC_MAX_COLUMN_WIDTH)
+      width = DYNAMIC_DEFAULT_COLUMN_WIDTH;
+
+   xSnprintf(titleBuffer, titleBufferSize, "%*s ", width, column->heading);
+   return titleBuffer;
+}
+
+// helper function to fill an aligned title string for a process field
+static const char* alignedTitleProcessField(ProcessField field, char* titleBuffer, size_t titleBufferSize) {
+   const char* title = Process_fields[field].title;
+   if (!title)
+      return "- ";
+
+   if (Process_fields[field].pidColumn) {
+      xSnprintf(titleBuffer, titleBufferSize, "%*s ", Row_pidDigits, title);
+      return titleBuffer;
+   }
+
+   if (field == ST_UID) {
+      xSnprintf(titleBuffer, titleBufferSize, "%*s ", Row_uidDigits, title);
+      return titleBuffer;
+   }
+
+   if (Process_fields[field].autoWidth) {
+      if (field == PERCENT_CPU)
+         xSnprintf(titleBuffer, titleBufferSize, "%*s ", Row_fieldWidths[field], title);
+      else
+         xSnprintf(titleBuffer, titleBufferSize, "%-*.*s ", Row_fieldWidths[field], Row_fieldWidths[field], title);
+      return titleBuffer;
+   }
+
+   return title;
+}
+
+// helper function to create an aligned title string for a given field
+const char* RowField_alignedTitle(const Settings* settings, RowField field) {
+   static char titleBuffer[UINT8_MAX + sizeof(" ")];
+   assert(sizeof(titleBuffer) >= DYNAMIC_MAX_COLUMN_WIDTH + sizeof(" "));
+   assert(sizeof(titleBuffer) >= ROW_MAX_PID_DIGITS + sizeof(" "));
+   assert(sizeof(titleBuffer) >= ROW_MAX_UID_DIGITS + sizeof(" "));
+
+   if (field < LAST_PROCESSFIELD)
+      return alignedTitleProcessField((ProcessField)field, titleBuffer, sizeof(titleBuffer));
+   return alignedTitleDynamicColumn(settings, field, titleBuffer, sizeof(titleBuffer));
+}
+
+RowField RowField_keyAt(const Settings* settings, int at) {
+   const RowField* fields = (const RowField*) settings->ss->fields;
+   RowField field;
+   int x = 0;
+   for (int i = 0; (field = fields[i]); i++) {
+      int len = strlen(RowField_alignedTitle(settings, field));
+      if (at >= x && at <= x + len) {
+         return field;
+      }
+      x += len;
+   }
+   return COMM;
+}
+
+void Row_printKBytes(RichString* str, unsigned long long number, bool coloring) {
+   char buffer[16];
+   int len;
+
+   int color = CRT_colors[PROCESS];
+   int nextUnitColor = CRT_colors[PROCESS];
+
+   const int colors[4] = {
+      [0] = CRT_colors[PROCESS],
+      [1] = CRT_colors[PROCESS_MEGABYTES],
+      [2] = CRT_colors[PROCESS_GIGABYTES],
+      [3] = CRT_colors[LARGE_NUMBER]
+   };
+
+   if (number == ULLONG_MAX)
+      goto invalidNumber;
+
+   if (coloring) {
+      color = colors[0];
+      nextUnitColor = colors[1];
+   }
+
+   if (number < 1000) {
+      // Plain number, no markings
+      len = xSnprintf(buffer, sizeof(buffer), "%5u ", (unsigned int)number);
+      RichString_appendnAscii(str, color, buffer, len);
+      return;
+   }
+
+   if (number < 100000) {
+      // 2 digits for M, 3 digits for K
+      len = xSnprintf(buffer, sizeof(buffer), "%2u", (unsigned int)(number / 1000));
+      RichString_appendnAscii(str, nextUnitColor, buffer, len);
+      len = xSnprintf(buffer, sizeof(buffer), "%03u ", (unsigned int)(number % 1000));
+      RichString_appendnAscii(str, color, buffer, len);
+      return;
+   }
+
+   // 100000 KiB (97.6 MiB) or greater. A unit prefix would be added.
+   const size_t maxUnitIndex = (sizeof(number) * CHAR_BIT - 1) / 10 + 1;
+   const bool canOverflow = maxUnitIndex >= ARRAYSIZE(unitPrefixes);
+
+   size_t i = 1;
+   int prevUnitColor;
+   // Convert KiB to (1/100) of MiB
+   unsigned long long hundredths = (number / 256) * 25 + (number % 256) * 25 / 256;
+   while (true) {
+      if (canOverflow && i >= ARRAYSIZE(unitPrefixes))
+         goto invalidNumber;
+
+      prevUnitColor = color;
+      color = nextUnitColor;
+
+      if (coloring && i + 1 < ARRAYSIZE(colors))
+         nextUnitColor = colors[i + 1];
+
+      if (hundredths < 1000000)
+         break;
+
+      hundredths /= ONE_K;
+      i++;
+   }
+
+   number = hundredths / 100;
+   hundredths %= 100;
+   if (number < 100) {
+      if (number < 10) {
+         // 1 digit + decimal point + 2 digits
+         // "9.76G", "9.99G", "9.76T", "9.99T", etc.
+         len = xSnprintf(buffer, sizeof(buffer), "%1u", (unsigned int)number);
+         RichString_appendnAscii(str, color, buffer, len);
+         len = xSnprintf(buffer, sizeof(buffer), ".%02u", (unsigned int)hundredths);
+      } else {
+         // 2 digits + decimal point + 1 digit
+         // "97.6M", "99.9M", "10.0G", "99.9G", etc.
+         len = xSnprintf(buffer, sizeof(buffer), "%2u", (unsigned int)number);
+         RichString_appendnAscii(str, color, buffer, len);
+         len = xSnprintf(buffer, sizeof(buffer), ".%1u", (unsigned int)hundredths / 10);
+      }
+      RichString_appendnAscii(str, prevUnitColor, buffer, len);
+      len = xSnprintf(buffer, sizeof(buffer), "%c ", unitPrefixes[i]);
+   } else if (number < 1000) {
+      // 3 digits
+      // "100M", "999M", "100G", "999G", etc.
+      len = xSnprintf(buffer, sizeof(buffer), "%4u%c ", (unsigned int)number, unitPrefixes[i]);
+   } else {
+      // 1 digit + 3 digits
+      // "1000M", "9999M", "1000G", "9999G", etc.
+      assert(number < 10000);
+
+      len = xSnprintf(buffer, sizeof(buffer), "%1u", (unsigned int)number / 1000);
+      RichString_appendnAscii(str, nextUnitColor, buffer, len);
+      len = xSnprintf(buffer, sizeof(buffer), "%03u%c ", (unsigned int)number % 1000, unitPrefixes[i]);
+   }
+   RichString_appendnAscii(str, color, buffer, len);
+   return;
+
+invalidNumber:
+   if (coloring)
+      color = CRT_colors[PROCESS_SHADOW];
+
+   RichString_appendAscii(str, color, "  N/A ");
+   return;
+}
+
+void Row_printBytes(RichString* str, unsigned long long number, bool coloring) {
+   if (number == ULLONG_MAX)
+      Row_printKBytes(str, ULLONG_MAX, coloring);
+   else
+      Row_printKBytes(str, number / ONE_K, coloring);
+}
+
+void Row_printCount(RichString* str, unsigned long long number, bool coloring) {
+   char buffer[13];
+
+   int largeNumberColor = coloring ? CRT_colors[LARGE_NUMBER] : CRT_colors[PROCESS];
+   int megabytesColor = coloring ? CRT_colors[PROCESS_MEGABYTES] : CRT_colors[PROCESS];
+   int shadowColor = coloring ? CRT_colors[PROCESS_SHADOW] : CRT_colors[PROCESS];
+   int baseColor = CRT_colors[PROCESS];
+
+   if (number == ULLONG_MAX) {
+      RichString_appendAscii(str, CRT_colors[PROCESS_SHADOW], "        N/A ");
+   } else if (number >= 100000LL * ONE_DECIMAL_T) {
+      xSnprintf(buffer, sizeof(buffer), "%11llu ", number / ONE_DECIMAL_G);
+      RichString_appendnAscii(str, largeNumberColor, buffer, 12);
+   } else if (number >= 100LL * ONE_DECIMAL_T) {
+      xSnprintf(buffer, sizeof(buffer), "%11llu ", number / ONE_DECIMAL_M);
+      RichString_appendnAscii(str, largeNumberColor, buffer, 8);
+      RichString_appendnAscii(str, megabytesColor, buffer + 8, 4);
+   } else if (number >= 10LL * ONE_DECIMAL_G) {
+      xSnprintf(buffer, sizeof(buffer), "%11llu ", number / ONE_DECIMAL_K);
+      RichString_appendnAscii(str, largeNumberColor, buffer, 5);
+      RichString_appendnAscii(str, megabytesColor, buffer + 5, 3);
+      RichString_appendnAscii(str, baseColor, buffer + 8, 4);
+   } else {
+      xSnprintf(buffer, sizeof(buffer), "%11llu ", number);
+      RichString_appendnAscii(str, largeNumberColor, buffer, 2);
+      RichString_appendnAscii(str, megabytesColor, buffer + 2, 3);
+      RichString_appendnAscii(str, baseColor, buffer + 5, 3);
+      RichString_appendnAscii(str, shadowColor, buffer + 8, 4);
+   }
+}
+
+void Row_printTime(RichString* str, unsigned long long totalHundredths, bool coloring) {
+   char buffer[10];
+   int len;
+
+   int yearColor = coloring ? CRT_colors[LARGE_NUMBER]      : CRT_colors[PROCESS];
+   int dayColor  = coloring ? CRT_colors[PROCESS_GIGABYTES] : CRT_colors[PROCESS];
+   int hourColor = coloring ? CRT_colors[PROCESS_MEGABYTES] : CRT_colors[PROCESS];
+   int baseColor = CRT_colors[PROCESS];
+
+   unsigned long long totalSeconds = totalHundredths / 100;
+   unsigned long long totalMinutes = totalSeconds / 60;
+   unsigned long long totalHours = totalMinutes / 60;
+   unsigned int seconds = totalSeconds % 60;
+   unsigned int minutes = totalMinutes % 60;
+
+   if (totalMinutes < 60) {
+      unsigned int hundredths = totalHundredths % 100;
+      len = xSnprintf(buffer, sizeof(buffer), "%2u:%02u.%02u ", (unsigned int)totalMinutes, seconds, hundredths);
+      RichString_appendnAscii(str, baseColor, buffer, len);
+      return;
+   }
+   if (totalHours < 24) {
+      len = xSnprintf(buffer, sizeof(buffer), "%2uh", (unsigned int)totalHours);
+      RichString_appendnAscii(str, hourColor, buffer, len);
+      len = xSnprintf(buffer, sizeof(buffer), "%02u:%02u ", minutes, seconds);
+      RichString_appendnAscii(str, baseColor, buffer, len);
+      return;
+   }
+
+   unsigned long long totalDays = totalHours / 24;
+   unsigned int hours = totalHours % 24;
+   if (totalDays < 10) {
+      len = xSnprintf(buffer, sizeof(buffer), "%1ud", (unsigned int)totalDays);
+      RichString_appendnAscii(str, dayColor, buffer, len);
+      len = xSnprintf(buffer, sizeof(buffer), "%02uh", hours);
+      RichString_appendnAscii(str, hourColor, buffer, len);
+      len = xSnprintf(buffer, sizeof(buffer), "%02um ", minutes);
+      RichString_appendnAscii(str, baseColor, buffer, len);
+      return;
+   }
+   if (totalDays < /* Ignore leap years */365) {
+      len = xSnprintf(buffer, sizeof(buffer), "%4ud", (unsigned int)totalDays);
+      RichString_appendnAscii(str, dayColor, buffer, len);
+      len = xSnprintf(buffer, sizeof(buffer), "%02uh ", hours);
+      RichString_appendnAscii(str, hourColor, buffer, len);
+      return;
+   }
+
+   unsigned long long years = totalDays / 365;
+   unsigned int days = totalDays % 365;
+   if (years < 1000) {
+      len = xSnprintf(buffer, sizeof(buffer), "%3uy", (unsigned int)years);
+      RichString_appendnAscii(str, yearColor, buffer, len);
+      len = xSnprintf(buffer, sizeof(buffer), "%03ud ", days);
+      RichString_appendnAscii(str, dayColor, buffer, len);
+   } else if (years < 10000000) {
+      len = xSnprintf(buffer, sizeof(buffer), "%7luy ", (unsigned long)years);
+      RichString_appendnAscii(str, yearColor, buffer, len);
+   } else {
+      RichString_appendAscii(str, yearColor, "eternity ");
+   }
+}
+
+void Row_printRate(RichString* str, double rate, bool coloring) {
+   char buffer[16];
+
+   int largeNumberColor = CRT_colors[LARGE_NUMBER];
+   int megabytesColor = CRT_colors[PROCESS_MEGABYTES];
+   int shadowColor = CRT_colors[PROCESS_SHADOW];
+   int baseColor = CRT_colors[PROCESS];
+
+   if (!coloring) {
+      largeNumberColor = CRT_colors[PROCESS];
+      megabytesColor = CRT_colors[PROCESS];
+   }
+
+   if (!isNonnegative(rate)) {
+      RichString_appendAscii(str, shadowColor, "        N/A ");
+   } else if (rate < 0.005) {
+      int len = snprintf(buffer, sizeof(buffer), "%7.2f B/s ", rate);
+      RichString_appendnAscii(str, shadowColor, buffer, len);
+   } else if (rate < ONE_K) {
+      int len = snprintf(buffer, sizeof(buffer), "%7.2f B/s ", rate);
+      RichString_appendnAscii(str, baseColor, buffer, len);
+   } else if (rate < ONE_M) {
+      int len = snprintf(buffer, sizeof(buffer), "%7.2f K/s ", rate / ONE_K);
+      RichString_appendnAscii(str, baseColor, buffer, len);
+   } else if (rate < ONE_G) {
+      int len = snprintf(buffer, sizeof(buffer), "%7.2f M/s ", rate / ONE_M);
+      RichString_appendnAscii(str, megabytesColor, buffer, len);
+   } else if (rate < ONE_T) {
+      int len = snprintf(buffer, sizeof(buffer), "%7.2f G/s ", rate / ONE_G);
+      RichString_appendnAscii(str, largeNumberColor, buffer, len);
+   } else if (rate < ONE_P) {
+      int len = snprintf(buffer, sizeof(buffer), "%7.2f T/s ", rate / ONE_T);
+      RichString_appendnAscii(str, largeNumberColor, buffer, len);
+   } else {
+      int len = snprintf(buffer, sizeof(buffer), "%7.2f P/s ", rate / ONE_P);
+      RichString_appendnAscii(str, largeNumberColor, buffer, len);
+   }
+}
+
+void Row_printLeftAlignedField(RichString* str, int attr, const char* content, unsigned int width) {
+   int columns = width;
+   RichString_appendnWideColumns(str, attr, content, strlen(content), &columns);
+   RichString_appendChr(str, attr, ' ', width + 1 - columns);
+}
+
+int Row_printPercentage(float val, char* buffer, size_t n, uint8_t width, int* attr) {
+   if (isNonnegative(val)) {
+      if (val < 0.05F)
+         *attr = CRT_colors[PROCESS_SHADOW];
+      else if (val >= 99.9F)
+         *attr = CRT_colors[PROCESS_MEGABYTES];
+
+      int precision = 1;
+
+      // Display "val" as "100" for columns like "MEM%".
+      if (width == 4 && val > 99.9F) {
+         precision = 0;
+         val = 100.0F;
+      }
+
+      return xSnprintf(buffer, n, "%*.*f ", width, precision, val);
+   }
+
+   *attr = CRT_colors[PROCESS_SHADOW];
+   return xSnprintf(buffer, n, "%*.*s ", width, width, "N/A");
+}
+
+void Row_toggleTag(Row* this) {
+   this->tag = !this->tag;
+}
+
+int Row_compare(const void* v1, const void* v2) {
+   const Row* r1 = (const Row*)v1;
+   const Row* r2 = (const Row*)v2;
+
+   return SPACESHIP_NUMBER(r1->id, r2->id);
+}
+
+int Row_compareByParent_Base(const void* v1, const void* v2) {
+   const Row* r1 = (const Row*)v1;
+   const Row* r2 = (const Row*)v2;
+
+   int result = SPACESHIP_NUMBER(
+      r1->isRoot ? 0 : Row_getGroupOrParent(r1),
+      r2->isRoot ? 0 : Row_getGroupOrParent(r2)
+   );
+
+   if (result != 0)
+      return result;
+
+   return Row_compare(v1, v2);
+}
+
+const RowClass Row_class = {
+   .super = {
+      .extends = Class(Object),
+      .compare = Row_compare
+   },
+};