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* include/haproxy/errors.h

* Global error macros and constants

* This library is free software; you can redistribute it and/or

* modify it under the terms of the GNU Lesser General Public

* License as published by the Free Software Foundation, version 2.1

* exclusively.

* This library 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

* Lesser General Public License for more details.

* You should have received a copy of the GNU Lesser General Public

* License along with this library; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

#ifndef _HAPROXY_ERRORS_H

#define _HAPROXY_ERRORS_H

#include <stdarg.h>

#include <stdio.h>

#include <haproxy/buf-t.h>

#include <haproxy/obj_type-t.h>

/* These flags may be used in various functions which are called from within

* loops (eg: to start all listeners from all proxies). They provide enough

* information to let the caller decide what to do. ERR_WARN and ERR_ALERT

* do not indicate any error, just that a message has been put in a shared

* buffer in order to be displayed by the caller.

#define ERR_NONE 0x00 /* no error, no message returned */

#define ERR_RETRYABLE 0x01 /* retryable error, may be cumulated */

#define ERR_FATAL 0x02 /* fatal error, may be cumulated */

#define ERR_ABORT 0x04 /* it's preferable to end any possible loop */

#define ERR_WARN 0x08 /* a warning message has been returned */

#define ERR_ALERT 0x10 /* an alert message has been returned */

#define ERR_CODE (ERR_RETRYABLE|ERR_FATAL|ERR_ABORT) /* mask */

extern struct ring *startup_logs;

/* These codes may be used by config parsing functions which detect errors and

* which need to inform the upper layer about them. They are all prefixed with

* "PE_" for "Parse Error". These codes will probably be extended, and functions

* making use of them should be documented as such. Only code PE_NONE (zero) may

* indicate a valid condition, all other ones must be caught as errors, event if

* unknown by the caller. This must not be used to forward warnings.

enum {

PE_NONE = 0, /* no error */

PE_ENUM_OOR, /* enum data out of allowed range */

PE_EXIST, /* trying to create something which already exists */

PE_ARG_MISSING, /* mandatory argument not provided */

PE_ARG_NOT_USED, /* argument provided cannot be used */

PE_ARG_INVC, /* invalid char in argument (pointer not provided) */

PE_ARG_INVC_PTR, /* invalid char in argument (pointer provided) */

PE_ARG_NOT_FOUND, /* argument references something not found */

PE_ARG_VALUE_OOR, /* argument value is out of range */

};

void usermsgs_clr(const char *prefix);

int usermsgs_empty(void);

const char *usermsgs_str(void);

extern uint tot_warnings;

/************ Error reporting functions ***********/

struct usermsgs_ctx {

struct buffer str;

const char *prefix; /* prefix of every output */

const char *file; /* related filename for config parsing */

int line; /* related line number for config parsing */

enum obj_type *obj; /* related proxy, server, ... */

};

void set_usermsgs_ctx(const char *file, int line, enum obj_type *obj);

void register_parsing_obj(enum obj_type *obj);

void reset_usermsgs_ctx(void);

* Displays the message on stderr with the date and pid. Overrides the quiet

* mode during startup.

void ha_alert(const char *fmt, ...)

__attribute__ ((format(printf, 1, 2)));

* Displays the message on stderr with the date and pid.

void ha_warning(const char *fmt, ...)

__attribute__ ((format(printf, 1, 2)));

* These functions are reserved to output diagnostics on MODE_DIAG.

* Use the underscore variants only if MODE_DIAG has already been checked.

void _ha_vdiag_warning(const char *fmt, va_list argp);

void _ha_diag_warning(const char *fmt, ...);

void ha_diag_warning(const char *fmt, ...)

__attribute__ ((format(printf, 1 ,2)));

/* Check for both MODE_DIAG and <cond> before outputting a diagnostic warning */

#define HA_DIAG_WARNING_COND(cond, fmt, ...) \

do { \

if ((global.mode & MODE_DIAG) && (cond)) \

_ha_diag_warning((fmt), ##__VA_ARGS__); \

} while (0)

* Displays the message on stderr with the date and pid.

void ha_notice(const char *fmt, ...)

__attribute__ ((format(printf, 1, 2)));

* Displays the message on <out> only if quiet mode is not set.

void qfprintf(FILE *out, const char *fmt, ...)

__attribute__ ((format(printf, 2, 3)));

void startup_logs_init();

struct ring *startup_logs_dup(struct ring *src);

void startup_logs_free(struct ring *r);

#endif /* _HAPROXY_ERRORS_H */

* Local variables:

* c-indent-level: 8

* c-basic-offset: 8

* End:

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