/* ** OSSP l2 - Flexible Logging ** Copyright (c) 2001-2005 Cable & Wireless ** Copyright (c) 2001-2005 The OSSP Project ** Copyright (c) 2001-2005 Ralf S. Engelschall ** ** This file is part of OSSP l2, a flexible logging library which ** can be found at http://www.ossp.org/pkg/lib/l2/. ** ** Permission to use, copy, modify, and distribute this software for ** any purpose with or without fee is hereby granted, provided that ** the above copyright notice and this permission notice appear in all ** copies. ** ** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED ** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF ** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ** IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR ** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF ** USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, ** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT ** OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF ** SUCH DAMAGE. ** ** l2_p.h: private C API */ #ifndef __L2_P_H__ #define __L2_P_H__ /* include standard headers */ #include #include #include #include /* include private headers */ #include "l2.h" #include "l2_config.h" #include "l2_ut_format.h" #include "l2_ut_pcre.h" #include "l2_ut_sa.h" #ifdef HAVE_SYS_TIME_H /* must come after include l2_config.h */ #include #endif /* assertion and tracing support */ #ifndef DEBUG #define NDEBUG #endif #include #ifndef NDEBUG #define TRACE(str) fprintf(stderr, "%s:%d: %s\n", __FILE__, __LINE__, str) #else #define TRACE(expr) ((void)0) #endif /* memory debugging support */ #if defined(HAVE_DMALLOC_H) && defined(WITH_DMALLOC) #include "dmalloc.h" #endif /* handy cleanup macros */ #define cu(value) \ do { rv = value; \ goto cus; } while (0) #define cu_on(expr,value) \ if (expr) \ cu(value) /* some hard-coded sizes :-( */ #define L2_MAX_OUTSIZE 4098 /* this value is for compatiblity with previous versions of L2 */ #define L2_MAX_MSGSIZE L2_MAX_OUTSIZE - 2 /* leave room for CR/LF although OSSP/UNIX use LF only */ #define L2_MSG_BUFSIZE L2_MAX_OUTSIZE + 1 /* reserve space for convenient trailing NUL */ #define L2_MAX_FORMATTERS 128 #define L2_MAX_HANDLERS 128 #define L2_BROKEN_TIMER -1 #define L2_BUFFER_TIMER ITIMER_REAL /* for [s|g]etitimer() and alarm() */ /* internal channel state */ typedef enum { L2_CHSTATE_CREATED, L2_CHSTATE_OPENED } l2_chstate_t; /* channel object structure */ struct l2_channel_st { l2_env_t *env; l2_chstate_t state; l2_channel_t *parent; l2_channel_t *sibling; l2_channel_t *child; l2_context_t context; l2_handler_t handler; unsigned int levelmask; unsigned int flushmask; }; /* formatter entry structure */ typedef struct { l2_formatter_t cb; void *ctx; char id; } l2_formatter_entry_t; /* environment object structure */ struct l2_env_st { unsigned int levelmask; unsigned int flushmask; int interval; l2_formatter_entry_t formatters[L2_MAX_FORMATTERS]; l2_handler_t *handlers[L2_MAX_HANDLERS]; char message[L2_MSG_BUFSIZE]; char szError[1024]; char szErrorInfo[512]; l2_result_t rvErrorInfo; }; /* variable argument handling taking care on argument passing conventions */ #define _va_type_recv_char int #define _va_type_cast_char char #define _va_type_recv_short int #define _va_type_cast_short short #define _va_type_recv_int int #define _va_type_cast_int int #define _va_type_recv_long long #define _va_type_cast_long long #define _va_type_recv_float double #define _va_type_cast_float double #define _va_type_recv_double double #define _va_type_cast_double double #define _va_type_recv_charptr void * #define _va_type_cast_charptr char * #define _va_type_recv_voidptr void * #define _va_type_cast_voidptr void * #define va_get(ap,type) (_va_type_cast_##type)va_arg((ap),_va_type_recv_##type) #endif /* __L2_P_H__ */