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esp-link/syslog/syslog.h

110 lines
3.6 KiB

/*
* syslog.h
*
*
* Copyright 2015 Susi's Strolch
*
* For license information see projects "License.txt"
*
* part of syslog.c - client library
*
*/
#ifndef _SYSLOG_H
#define _SYSLOG_H
#ifdef __cplusplus
extern "C" {
#endif
enum syslog_state {
SYSLOG_NONE, // not initialized
SYSLOG_WAIT, // initialized, waiting for Wifi
SYSLOG_READY, // Wifi established, ready to send
SYSLOG_SENDING, // UDP package on the air
SYSLOG_HALTED, // heap full, discard message
SYSLOG_ERROR,
};
enum syslog_priority {
SYSLOG_PRIO_EMERG, /* system is unusable */
SYSLOG_PRIO_ALERT, /* action must be taken immediately */
SYSLOG_PRIO_CRIT, /* critical conditions */
SYSLOG_PRIO_ERR, /* error conditions */
SYSLOG_PRIO_WARNING, /* warning conditions */
SYSLOG_PRIO_NOTICE, /* normal but significant condition */
SYSLOG_PRIO_INFO, /* informational */
SYSLOG_PRIO_DEBUG, /* debug-level messages */
};
enum syslog_facility {
SYSLOG_FAC_KERN, /* kernel messages */
SYSLOG_FAC_USER, /* random user-level messages */
SYSLOG_FAC_MAIL, /* mail system */
SYSLOG_FAC_DAEMON, /* system daemons */
SYSLOG_FAC_AUTH, /* security/authorization messages */
SYSLOG_FAC_SYSLOG, /* messages generated internally by syslogd */
SYSLOG_FAC_LPR, /* line printer subsystem */
SYSLOG_FAC_NEWS, /* network news subsystem */
SYSLOG_FAC_UUCP, /* UUCP subsystem */
SYSLOG_FAC_CRON, /* clock daemon */
SYSLOG_FAC_AUTHPRIV,/* security/authorization messages (private) */
SYSLOG_FAC_FTP, /* ftp daemon */
SYSLOG_FAC_LOCAL0, /* reserved for local use */
SYSLOG_FAC_LOCAL1, /* reserved for local use */
SYSLOG_FAC_LOCAL2, /* reserved for local use */
SYSLOG_FAC_LOCAL3, /* reserved for local use */
SYSLOG_FAC_LOCAL4, /* reserved for local use */
SYSLOG_FAC_LOCAL5, /* reserved for local use */
SYSLOG_FAC_LOCAL6, /* reserved for local use */
SYSLOG_FAC_LOCAL7, /* reserved for local use */
};
#define MINIMUM_HEAP_SIZE 8192
#define REG_READ(_r) (*(volatile uint32 *)(_r))
#define WDEV_NOW() REG_READ(0x3ff20c00)
extern uint32_t realtime_stamp; // 1sec NTP ticker
typedef struct syslog_host_t syslog_host_t;
struct syslog_host_t {
uint32_t min_heap_size; // minimum allowed heap size when buffering
ip_addr_t addr;
uint16_t port;
};
// buffered syslog event - f.e. if network stack isn't up and running
typedef struct syslog_entry_t syslog_entry_t;
struct syslog_entry_t {
syslog_entry_t *next;
uint16_t datagram_len;
char datagram[];
};
syslog_host_t syslogserver;
void ICACHE_FLASH_ATTR syslog_init(char *syslog_host);
void ICACHE_FLASH_ATTR syslog(uint8_t facility, uint8_t severity, const char tag[], const char message[], ...);
// some convenience macros
#ifdef SYSLOG
// extern char *esp_link_version; // in user_main.c
#define LOG_DEBUG(format, ...) syslog(SYSLOG_FAC_USER, SYSLOG_PRIO_DEBUG, "esp_link", format, ## __VA_ARGS__ )
#define LOG_NOTICE(format, ...) syslog(SYSLOG_FAC_USER, SYSLOG_PRIO_NOTICE, "esp_link", format, ## __VA_ARGS__ )
#define LOG_INFO(format, ...) syslog(SYSLOG_FAC_USER, SYSLOG_PRIO_INFO, "esp_link", format, ## __VA_ARGS__ )
#define LOG_WARN(format, ...) syslog(SYSLOG_FAC_USER, SYSLOG_PRIO_WARNING, "esp_link", format, ## __VA_ARGS__ )
#define LOG_ERR(format, ...) syslog(SYSLOG_FAC_USER, SYSLOG_PRIO_ERR, "esp_link", format, ## __VA_ARGS__ )
#else
#define LOG_DEBUG(format, ...) do { } while(0)
#define LOG_NOTICE(format, ...) do { } while(0)
#define LOG_WARN(format, ...) do { } while(0)
#define LOG_INFO(format, ...) do { } while(0)
#define LOG_ERR(format, ...) do { } while(0)
#endif
#ifdef __cplusplus
}
#endif
#endif /* _SYSLOG_H */