strutil.h

/*
 * strutil.h
 * Copyright (c) 2ndQuadrant, 2010-2018
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _STRUTIL_H_
#define _STRUTIL_H_

#include <pqexpbuffer.h>

#define MAXLEN			1024
#define MAX_QUERY_LEN	8192
#define MAXVERSIONSTR	16

/* same as defined in src/include/replication/walreceiver.h */
#define MAXCONNINFO		1024

#define STR(x) CppAsString(x)

#define MAXLEN_STR STR(MAXLEN)


/*
 * These values must match the Nagios return codes defined here:
 *
 * https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/3/en/pluginapi.html
 */
typedef enum
{
	CHECK_STATUS_OK       = 0,
	CHECK_STATUS_WARNING  = 1,
	CHECK_STATUS_CRITICAL = 2,
	CHECK_STATUS_UNKNOWN  = 3
} CheckStatus;

typedef enum
{
	OM_NOT_SET = -1,
	OM_TEXT,
	OM_CSV,
	OM_NAGIOS,
	OM_OPTFORMAT
} OutputMode;

typedef struct ItemListCell
{
	struct ItemListCell *next;
	char	   *string;
} ItemListCell;

typedef struct ItemList
{
	ItemListCell *head;
	ItemListCell *tail;
} ItemList;

typedef struct KeyValueListCell
{
	struct KeyValueListCell *next;
	char	   *key;
	char	   *value;
	OutputMode	output_mode;
} KeyValueListCell;

typedef struct KeyValueList
{
	KeyValueListCell *head;
	KeyValueListCell *tail;
} KeyValueList;


typedef struct CheckStatusListCell
{
	struct CheckStatusListCell *next;
	char	   *item;
	CheckStatus status;
	char	   *details;
} CheckStatusListCell;

typedef struct CheckStatusList
{
	CheckStatusListCell *head;
	CheckStatusListCell *tail;
} CheckStatusList;



extern int
maxlen_snprintf(char *str, const char *format,...)
__attribute__((format(PG_PRINTF_ATTRIBUTE, 2, 3)));

extern int
maxpath_snprintf(char *str, const char *format,...)
__attribute__((format(PG_PRINTF_ATTRIBUTE, 2, 3)));

extern void
			item_list_append(ItemList *item_list, const char *message);

extern void
item_list_append_format(ItemList *item_list, const char *format,...)
__attribute__((format(PG_PRINTF_ATTRIBUTE, 2, 3)));

extern void
			item_list_free(ItemList *item_list);

extern void
			key_value_list_set(KeyValueList *item_list, const char *key, const char *value);

extern void
key_value_list_set_format(KeyValueList *item_list, const char *key, const char *value,...)
__attribute__((format(PG_PRINTF_ATTRIBUTE, 3, 4)));

extern void
			key_value_list_set_output_mode(KeyValueList *item_list, const char *key, OutputMode mode);

extern const char *key_value_list_get(KeyValueList *item_list, const char *key);

extern void
			key_value_list_free(KeyValueList *item_list);

extern void
			check_status_list_set(CheckStatusList *list, const char *item, CheckStatus status, const char *details);

extern void
check_status_list_set_format(CheckStatusList *list, const char *item, CheckStatus status, const char *details,...)
__attribute__((format(PG_PRINTF_ATTRIBUTE, 4, 5)));

extern void
			check_status_list_free(CheckStatusList *list);

extern const char *output_check_status(CheckStatus status);

extern char *escape_recovery_conf_value(const char *src);

extern char *escape_string(PGconn *conn, const char *string);

extern void escape_double_quotes(char *string, PQExpBufferData *out);

extern void
append_where_clause(PQExpBufferData *where_clause, const char *clause,...)
__attribute__((format(PG_PRINTF_ATTRIBUTE, 2, 3)));

extern char *string_skip_prefix(const char *prefix, char *string);

extern char
		   *string_remove_trailing_newlines(char *string);

extern char *trim(char *s);

extern void
			parse_follow_command(char *parsed_command, char *template, int node_id);

#endif							/* _STRUTIL_H_ */