From: Robert Kessl <kesslr@centrum.cz>
Date: Wed, 16 Jul 2014 12:50:11 +0000 (+0200)
Subject: tableprinter: update of linked list and usage of const
X-Git-Tag: v6.1~3^2~92
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=efd46e011a873451215540215153035b73d4dc8f;p=libucw.git

tableprinter: update of linked list and usage of const
---

diff --git a/ucw/table-types.c b/ucw/table-types.c
index bea583a7..faa72f42 100644
--- a/ucw/table-types.c
+++ b/ucw/table-types.c
@@ -45,7 +45,7 @@ static const char *xt_size_format(void *src, u32 fmt, struct mempool *pool)
 
 bool table_set_col_opt_size(struct table *tbl, uint col_inst_idx, const char *col_arg, char **err)
 {
-  struct table_column *col_def = tbl->column_order[col_inst_idx].col_def;
+  const struct table_column *col_def = tbl->column_order[col_inst_idx].col_def;
   if(col_def->type_def != COL_TYPE_SIZE) {
     *err = NULL;
     return false;
diff --git a/ucw/table.c b/ucw/table.c
index af805f99..16ae418d 100644
--- a/ucw/table.c
+++ b/ucw/table.c
@@ -28,7 +28,7 @@ static struct table *table_make_instance(const struct table_template *tbl_templa
   new_inst->pool = pool;
 
   // initialize column definitions
-  int col_count = 0; // count the number of columns in the struct table
+  uint col_count = 0; // count the number of columns in the struct table
   for(;;) {
     if(tbl_template->columns[col_count].name == NULL &&
        tbl_template->columns[col_count].width == 0 &&
@@ -41,8 +41,11 @@ static struct table *table_make_instance(const struct table_template *tbl_templa
   }
   new_inst->column_count = col_count;
 
-  new_inst->columns = mp_alloc_zero(new_inst->pool, sizeof(struct table_column) * new_inst->column_count);
-  memcpy(new_inst->columns, tbl_template->columns, sizeof(struct table_column) * new_inst->column_count);
+  new_inst->columns = tbl_template->columns;
+  new_inst->ll_headers = mp_alloc(new_inst->pool, sizeof(int) * col_count);
+  for(uint i = 0; i < col_count; i++) {
+    new_inst->ll_headers[i] = -1;
+  }
 
   // initialize column_order
   if(tbl_template->column_order) {
@@ -159,7 +162,7 @@ static void table_update_ll(struct table *tbl)
   int cols_to_output = tbl->cols_to_output;
 
   for(int i = 0; i < tbl->column_count; i++) {
-    tbl->columns[i].first_column = -1;
+    tbl->ll_headers[i] = -1;
   }
 
   for(int i = 0; i < cols_to_output; i++) {
@@ -168,14 +171,10 @@ static void table_update_ll(struct table *tbl)
   }
 
   for(int i = 0; i < cols_to_output; i++) {
-    int first = tbl->column_order[i].col_def->first_column;
-    tbl->column_order[i].col_def->first_column = i;
-
-    if(first != -1) {
-      tbl->column_order[i].next_column = first;
-    } else {
-      tbl->column_order[i].next_column = -1;
-    }
+    int col_def_idx = tbl->column_order[i].col_def - tbl->columns;
+    int first = tbl->ll_headers[col_def_idx];
+    tbl->ll_headers[col_def_idx] = i;
+    tbl->column_order[i].next_column = first;
   }
 }
 
@@ -199,7 +198,7 @@ void table_set_col_order(struct table *tbl, int *col_order, int cols_to_output)
 
 bool table_col_is_printed(struct table *tbl, uint col_idx)
 {
-  if(tbl->columns[col_idx].first_column == -1) return 0;
+  if(tbl->ll_headers[col_idx] == -1) return 0;
 
   return 1;
 }
@@ -221,7 +220,7 @@ static char * table_parse_col_arg(char *col_def)
  **/
 bool table_set_col_opt_default(struct table *tbl, int col_idx, const char *col_arg, char **err)
 {
-  struct table_column *col_def = tbl->column_order[col_idx].col_def;
+  const struct table_column *col_def = tbl->column_order[col_idx].col_def;
 
   if(col_def->type_def == COL_TYPE_DOUBLE) {
     uint precision = 0;
@@ -473,7 +472,7 @@ const char *table_set_gary_options(struct table *tbl, char **gary_table_opts)
 static void table_row_human_readable(struct table *tbl)
 {
   for(uint i = 0; i < tbl->cols_to_output; i++) {
-    struct table_column *col_def = tbl->column_order[i].col_def;
+    const struct table_column *col_def = tbl->column_order[i].col_def;
     if(i) {
       bputs(tbl->out, tbl->col_delimiter);
     }
@@ -487,7 +486,7 @@ static void table_row_human_readable(struct table *tbl)
 static void table_write_header(struct table *tbl)
 {
   for(uint i = 0; i < tbl->cols_to_output; i++) {
-    struct table_column *col_def = tbl->column_order[i].col_def;
+    const struct table_column *col_def = tbl->column_order[i].col_def;
     if(i) {
       bputs(tbl->out, tbl->col_delimiter);
     }
@@ -554,7 +553,7 @@ struct table_formatter table_fmt_machine_readable = {
 static void table_row_blockline_output(struct table *tbl)
 {
   for(uint i = 0; i < tbl->cols_to_output; i++) {
-    struct table_column *col_def = tbl->column_order[i].col_def;
+    const struct table_column *col_def = tbl->column_order[i].col_def;
     bprintf(tbl->out, "%s: %s\n", col_def->name, tbl->column_order[i].cell_content);
   }
   bputc(tbl->out, '\n');
@@ -693,8 +692,6 @@ static void test_any_type(struct fastbuf *out)
 {
   struct table *tbl = table_init(&test_any_tbl);
 
-  tbl->columns[TEST_ANY_COL1_ANY].fmt = XTYPE_FMT_PRETTY;
-
   table_start(tbl, out);
 
   table_col_int(tbl, TEST_ANY_COL0_INT, -10);
diff --git a/ucw/table.h b/ucw/table.h
index 61fe6d48..2b93bdb2 100644
--- a/ucw/table.h
+++ b/ucw/table.h
@@ -109,7 +109,6 @@ struct table_column {
   const char *name;		// [*] Name of the column displayed in table header
   int width;			// [*] Width of the column (in characters) OR'ed with column flags
   enum xtype_fmt fmt;
-  int first_column;             // head of linked list of columns of this type
   const struct xtype *type_def;
 
   bool (*set_col_instance_option)(struct table *tbl, uint col, const char *value, char **err);
@@ -120,7 +119,7 @@ struct table_column {
 // idx is used only for initialization and col_def is used in other cases
 struct table_col_instance {
   uint idx;                      // idx is a index into struct table::columns
-  struct table_column *col_def;  // this is pointer to the column definition, located in the array struct table::columns
+  const struct table_column *col_def;  // this is pointer to the column definition, located in the array struct table::columns
   const char *cell_content;            // content of the cell of the current row
   int next_column;               // index of next column in linked list of columns of the same type
   enum xtype_fmt output_type;               // format of this column
@@ -131,7 +130,7 @@ struct table_col_instance {
  * Please use only fields marked with `[*]`.
  **/
 struct table_template {
-  struct table_column *columns;		// [*] Definition of columns
+  const struct table_column *columns;		// [*] Definition of columns
   struct table_col_instance *column_order;  // [*] Order of the columns in the print-out of the table
   uint cols_to_output;			// [*] Number of columns that are printed
   const char *col_delimiter;		// [*] Delimiter that is placed between columns
@@ -145,8 +144,9 @@ struct table_template {
  * fields marked with `[*]`.
  **/
 struct table {
-  struct table_column *columns;		// [*] Definition of columns
+  const struct table_column *columns;	// [*] Definition of columns
   int column_count;			// [*] Number of columns (calculated by table_init())
+  int *ll_headers;                      // headers of linked lists that connects column instances
   struct mempool *pool;			// Memory pool used for storing table data. Contains global state
 					// and data of the current row.
   struct mempool_state pool_state;	// State of the pool after the table is initialized, i.e., before
@@ -185,31 +185,31 @@ struct table {
  *
  ***/
 
-#define TBL_COL_LIST_INIT     .first_column = -1
-#define TBL_COL_STR(_name, _width)            { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_STR, TBL_COL_LIST_INIT }
-#define TBL_COL_INT(_name, _width)            { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_INT, TBL_COL_LIST_INIT }
-#define TBL_COL_S64(_name, _width)            { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_S64, TBL_COL_LIST_INIT }
-#define TBL_COL_UINT(_name, _width)           { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_UINT, TBL_COL_LIST_INIT }
-#define TBL_COL_U64(_name, _width)            { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_U64, TBL_COL_LIST_INIT }
-#define TBL_COL_INTMAX(_name, _width)         { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_INTMAX, TBL_COL_LIST_INIT }
-#define TBL_COL_UINTMAX(_name, _width)        { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_UINTMAX, TBL_COL_LIST_INIT }
-#define TBL_COL_HEXUINT(_name, _width)        { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_UINT, TBL_COL_LIST_INIT }
-#define TBL_COL_DOUBLE(_name, _width)         { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_DOUBLE, TBL_COL_LIST_INIT }
-#define TBL_COL_BOOL(_name, _width)           { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_BOOL, TBL_COL_LIST_INIT }
-#define TBL_COL_ANY(_name, _width)            { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_ANY, TBL_COL_LIST_INIT }
-#define TBL_COL_CUSTOM(_name, _width, _xtype) { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = _xtype, TBL_COL_LIST_INIT }
-
-#define TBL_COL_STR_FMT(_name, _width, _fmt)            { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_STR, TBL_COL_LIST_INIT }
-#define TBL_COL_INT_FMT(_name, _width, _fmt)            { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_INT, TBL_COL_LIST_INIT }
-#define TBL_COL_S64_FMT(_name, _width, _fmt)            { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_S64, TBL_COL_LIST_INIT }
-#define TBL_COL_UINT_FMT(_name, _width, _fmt)           { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_UINT, TBL_COL_LIST_INIT }
-#define TBL_COL_U64_FMT(_name, _width, _fmt)            { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_U64, TBL_COL_LIST_INIT }
-#define TBL_COL_INTMAX_FMT(_name, _width, _fmt)         { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_INTMAX, TBL_COL_LIST_INIT }
-#define TBL_COL_UINTMAX_FMT(_name, _width, _fmt)        { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_UINTMAX, TBL_COL_LIST_INIT }
-#define TBL_COL_HEXUINT_FMT(_name, _width, _fmt)        { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_UINT, TBL_COL_LIST_INIT }
-#define TBL_COL_BOOL_FMT(_name, _width, _fmt)           { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_BOOL, TBL_COL_LIST_INIT }
-#define TBL_COL_ANY_FMT(_name, _width, _fmt)            { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_ANY, TBL_COL_LIST_INIT }
-#define TBL_COL_DOUBLE_FMT(_name, _width, _fmt)         { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_DOUBLE, TBL_COL_LIST_INIT }
+//#define TBL_COL_LIST_INIT     .first_column = -1
+#define TBL_COL_STR(_name, _width)            { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_STR }
+#define TBL_COL_INT(_name, _width)            { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_INT }
+#define TBL_COL_S64(_name, _width)            { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_S64 }
+#define TBL_COL_UINT(_name, _width)           { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_UINT }
+#define TBL_COL_U64(_name, _width)            { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_U64 }
+#define TBL_COL_INTMAX(_name, _width)         { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_INTMAX }
+#define TBL_COL_UINTMAX(_name, _width)        { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_UINTMAX }
+#define TBL_COL_HEXUINT(_name, _width)        { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_UINT }
+#define TBL_COL_DOUBLE(_name, _width)         { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_DOUBLE }
+#define TBL_COL_BOOL(_name, _width)           { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_BOOL }
+#define TBL_COL_ANY(_name, _width)            { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = COL_TYPE_ANY }
+#define TBL_COL_CUSTOM(_name, _width, _xtype) { .name = _name, .width = _width, .fmt = XTYPE_FMT_DEFAULT, .type_def = _xtype }
+
+#define TBL_COL_STR_FMT(_name, _width, _fmt)            { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_STR }
+#define TBL_COL_INT_FMT(_name, _width, _fmt)            { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_INT }
+#define TBL_COL_S64_FMT(_name, _width, _fmt)            { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_S64 }
+#define TBL_COL_UINT_FMT(_name, _width, _fmt)           { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_UINT }
+#define TBL_COL_U64_FMT(_name, _width, _fmt)            { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_U64 }
+#define TBL_COL_INTMAX_FMT(_name, _width, _fmt)         { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_INTMAX }
+#define TBL_COL_UINTMAX_FMT(_name, _width, _fmt)        { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_UINTMAX }
+#define TBL_COL_HEXUINT_FMT(_name, _width, _fmt)        { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_UINT }
+#define TBL_COL_BOOL_FMT(_name, _width, _fmt)           { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_BOOL }
+#define TBL_COL_ANY_FMT(_name, _width, _fmt)            { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_ANY }
+#define TBL_COL_DOUBLE_FMT(_name, _width, _fmt)         { .name = _name, .width = _width, .fmt = _fmt, .type_def = COL_TYPE_DOUBLE }
 
 #define TBL_COL_END { .name = 0, .width = 0, .fmt = 0, .type_def = NULL }
 
@@ -224,8 +224,8 @@ struct table {
 #define TBL_OUTPUT_BLOCKLINE          .formatter = &table_fmt_blockline
 #define TBL_OUTPUT_MACHINE_READABLE   .formatter = &table_fmt_machine_readable
 
-#define TBL_COL_ITER_START(_tbl, _colidx, _var, _idxval) { struct table_col_instance *_var = NULL; int _idxval = _tbl->columns[_colidx].first_column; \
-  for(_idxval = _tbl->columns[_colidx].first_column, _var = _tbl->column_order + _idxval; _idxval != -1; _idxval = _tbl->column_order[_idxval].next_column, _var = _tbl->column_order + _idxval)
+#define TBL_COL_ITER_START(_tbl, _colidx, _var, _idxval) { struct table_col_instance *_var = NULL; int _idxval = _tbl->ll_headers[_colidx]; \
+  for(_idxval = _tbl->ll_headers[_colidx], _var = _tbl->column_order + _idxval; _idxval != -1; _idxval = _tbl->column_order[_idxval].next_column, _var = _tbl->column_order + _idxval)
 
 #define TBL_COL_ITER_END }