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/*
* block.h - definition of a block
* Copyright (C) 2014-2019 Vivien Didelot
*
* 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 BLOCK_H
#define BLOCK_H
#include <sys/types.h>
#include "bar.h"
#include "log.h"
#include "map.h"
#define INTERVAL_ONCE -1
#define INTERVAL_REPEAT -2
#define INTERVAL_PERSIST -3
#define FORMAT_RAW 0
#define FORMAT_JSON 1
/* Block command exit codes */
#define EXIT_URGENT '!' /* 33 */
#define EXIT_ERR_INTERNAL 66
struct block {
const struct bar *bar;
struct map *config;
struct map *env;
bool tainted;
/* Pretty name for log messages */
char *name;
/* Shortcuts */
const char *command;
int interval;
int signal;
unsigned format;
/* Runtime info */
unsigned long timestamp;
int in[2];
int out[2];
int code;
pid_t pid;
struct block *next;
};
struct block *block_create(struct bar *bar, const struct map *config);
void block_destroy(struct block *block);
int block_reset(struct block *block);
const char *block_get(const struct block *block, const char *key);
int block_set(struct block *block, const char *key, const char *value);
int block_for_each(const struct block *block,
int (*func)(const char *key, const char *value, void *data),
void *data);
void block_printf(struct block *block, int lvl, const char *fmt, ...);
#define block_fatal(block, fmt, ...) \
do { \
fatal("[%s] " fmt, block->name, ##__VA_ARGS__); \
block_printf(block, LOG_FATAL, "Oops! " fmt, ##__VA_ARGS__); \
} while (0)
#define block_error(block, fmt, ...) \
do { \
error("[%s] " fmt, block->name, ##__VA_ARGS__); \
block_printf(block, LOG_ERROR, "Error: " fmt, ##__VA_ARGS__); \
} while (0)
#define block_trace(block, fmt, ...) \
do { \
trace("[%s] " fmt, block->name, ##__VA_ARGS__); \
block_printf(block, LOG_TRACE, fmt, ##__VA_ARGS__); \
} while (0)
#define block_debug(block, fmt, ...) \
do { \
debug("[%s] " fmt, block->name, ##__VA_ARGS__); \
block_printf(block, LOG_DEBUG, fmt, ##__VA_ARGS__); \
} while (0)
int block_setup(struct block *block);
int block_click(struct block *block);
int block_spawn(struct block *block);
void block_touch(struct block *block);
int block_reap(struct block *block);
int block_update(struct block *block);
void block_close(struct block *block);
#endif /* BLOCK_H */
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