postgresql/src/fe_utils/simple_list.c
Tom Lane e3860ffa4d Initial pgindent run with pg_bsd_indent version 2.0.
The new indent version includes numerous fixes thanks to Piotr Stefaniak.
The main changes visible in this commit are:

* Nicer formatting of function-pointer declarations.
* No longer unexpectedly removes spaces in expressions using casts,
  sizeof, or offsetof.
* No longer wants to add a space in "struct structname *varname", as
  well as some similar cases for const- or volatile-qualified pointers.
* Declarations using PG_USED_FOR_ASSERTS_ONLY are formatted more nicely.
* Fixes bug where comments following declarations were sometimes placed
  with no space separating them from the code.
* Fixes some odd decisions for comments following case labels.
* Fixes some cases where comments following code were indented to less
  than the expected column 33.

On the less good side, it now tends to put more whitespace around typedef
names that are not listed in typedefs.list.  This might encourage us to
put more effort into typedef name collection; it's not really a bug in
indent itself.

There are more changes coming after this round, having to do with comment
indentation and alignment of lines appearing within parentheses.  I wanted
to limit the size of the diffs to something that could be reviewed without
one's eyes completely glazing over, so it seemed better to split up the
changes as much as practical.

Discussion: https://postgr.es/m/E1dAmxK-0006EE-1r@gemulon.postgresql.org
Discussion: https://postgr.es/m/30527.1495162840@sss.pgh.pa.us
2017-06-21 14:39:04 -04:00

116 lines
2.3 KiB
C

/*-------------------------------------------------------------------------
*
* Simple list facilities for frontend code
*
* Data structures for simple lists of OIDs and strings. The support for
* these is very primitive compared to the backend's List facilities, but
* it's all we need in, eg, pg_dump.
*
*
* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/fe_utils/simple_list.c
*
*-------------------------------------------------------------------------
*/
#include "postgres_fe.h"
#include "fe_utils/simple_list.h"
/*
* Append an OID to the list.
*/
void
simple_oid_list_append(SimpleOidList *list, Oid val)
{
SimpleOidListCell *cell;
cell = (SimpleOidListCell *) pg_malloc(sizeof(SimpleOidListCell));
cell->next = NULL;
cell->val = val;
if (list->tail)
list->tail->next = cell;
else
list->head = cell;
list->tail = cell;
}
/*
* Is OID present in the list?
*/
bool
simple_oid_list_member(SimpleOidList *list, Oid val)
{
SimpleOidListCell *cell;
for (cell = list->head; cell; cell = cell->next)
{
if (cell->val == val)
return true;
}
return false;
}
/*
* Append a string to the list.
*
* The given string is copied, so it need not survive past the call.
*/
void
simple_string_list_append(SimpleStringList *list, const char *val)
{
SimpleStringListCell *cell;
cell = (SimpleStringListCell *)
pg_malloc(offsetof(SimpleStringListCell, val) + strlen(val) + 1);
cell->next = NULL;
cell->touched = false;
strcpy(cell->val, val);
if (list->tail)
list->tail->next = cell;
else
list->head = cell;
list->tail = cell;
}
/*
* Is string present in the list?
*
* If found, the "touched" field of the first match is set true.
*/
bool
simple_string_list_member(SimpleStringList *list, const char *val)
{
SimpleStringListCell *cell;
for (cell = list->head; cell; cell = cell->next)
{
if (strcmp(cell->val, val) == 0)
{
cell->touched = true;
return true;
}
}
return false;
}
/*
* Find first not-touched list entry, if there is one.
*/
const char *
simple_string_list_not_touched(SimpleStringList *list)
{
SimpleStringListCell *cell;
for (cell = list->head; cell; cell = cell->next)
{
if (!cell->touched)
return cell->val;
}
return NULL;
}