Introduce Row and Table classes for screens beyond top-processes

This commit refactors the Process and ProcessList structures such
they each have a new parent - Row and Table, respectively.  These
new classes handle screen updates relating to anything that could
be represented in tabular format, e.g. cgroups, filesystems, etc,
without us having to reimplement the display logic repeatedly for
each new entity.

1 files changed, 56 insertions, 0 deletions

diff --git a/RowField.h b/RowField.h
new file mode 100644
index 00000000..1e01ea3e
--- /dev/null
+++ b/RowField.h
@@ -0,0 +1,56 @@
+#ifndef HEADER_RowField
+#define HEADER_RowField
+/*
+htop - RowField.h
+(C) 2023 htop dev team
+Released under the GNU GPLv2+, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "ProcessField.h" // platform-specific fields reserved for processes
+
+
+typedef enum ReservedFields_ {
+   NULL_FIELD = 0,
+   PID = 1,
+   COMM = 2,
+   STATE = 3,
+   PPID = 4,
+   PGRP = 5,
+   SESSION = 6,
+   TTY = 7,
+   TPGID = 8,
+   MINFLT = 10,
+   MAJFLT = 12,
+   PRIORITY = 18,
+   NICE = 19,
+   STARTTIME = 21,
+   PROCESSOR = 38,
+   M_VIRT = 39,
+   M_RESIDENT = 40,
+   ST_UID = 46,
+   PERCENT_CPU = 47,
+   PERCENT_MEM = 48,
+   USER = 49,
+   TIME = 50,
+   NLWP = 51,
+   TGID = 52,
+   PERCENT_NORM_CPU = 53,
+   ELAPSED = 54,
+   SCHEDULERPOLICY = 55,
+   PROC_COMM = 124,
+   PROC_EXE = 125,
+   CWD = 126,
+
+   /* Platform specific fields, defined in ${platform}/ProcessField.h */
+   PLATFORM_PROCESS_FIELDS
+
+   /* Do not add new fields after this entry (dynamic entries follow) */
+   LAST_RESERVED_FIELD
+} ReservedFields;
+
+/* Follow ReservedField entries with dynamic fields defined at runtime */
+#define ROW_DYNAMIC_FIELDS LAST_RESERVED_FIELD
+typedef int32_t RowField;
+
+#endif