Annotation of libelwix/inc/elwix.h, revision 1.6
1.1 misho 1: /*************************************************************************
2: * (C) 2013 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
3: * by Michael Pounov <misho@elwix.org>
4: *
5: * $Author: misho $
1.6 ! misho 6: * $Id: elwix.h,v 1.5.2.1 2013/06/20 08:03:45 misho Exp $
1.1 misho 7: *
8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #ifndef __ELWIX_H
47: #define __ELWIX_H
48:
49:
50: #include <assert.h>
51: #include <syslog.h>
52: #include <sys/types.h>
1.6 ! misho 53: #include <sys/param.h>
! 54: #include <sys/limits.h>
1.1 misho 55: #include <sys/socket.h>
56: #include <sys/un.h>
57: #include <net/if_dl.h>
58: #include <netinet/in.h>
59: #include <arpa/inet.h>
60:
61: #include <elwix/atree.h>
62: #include <elwix/ampool.h>
63: #include <elwix/acrc.h>
64: #include <elwix/aarray.h>
65: #include <elwix/asarr.h>
66: #include <elwix/avar.h>
67: #include <elwix/astr.h>
68: #include <elwix/aregex.h>
1.2 misho 69: #include <elwix/aav.h>
1.1 misho 70: #include <elwix/anet.h>
1.2 misho 71: #include <elwix/atime.h>
1.1 misho 72:
73:
74: #ifndef STRSIZ
75: #define STRSIZ 256
76: #endif
77:
1.6 ! misho 78: #ifndef NBBY
! 79: #define NBBY 8 /* number of bits in a byte */
! 80: #endif
! 81:
1.1 misho 82: #ifndef be16toh
83: #define be16toh betoh16
84: #endif
85: #ifndef be32toh
86: #define be32toh betoh32
87: #endif
88: #ifndef be64toh
89: #define be64toh betoh64
90: #endif
91: #ifndef le16toh
92: #define le16toh letoh16
93: #endif
94: #ifndef le32toh
95: #define le32toh letoh32
96: #endif
97: #ifndef le64toh
98: #define le64toh letoh64
99: #endif
100:
1.6 ! misho 101: /* Bit map related macros. */
! 102: #ifndef setbit
! 103: #define setbit(a, i) (((unsigned char *)(a))[(i) / NBBY] |= 1 << ((i) % NBBY))
! 104: #endif
! 105: #ifndef clrbit
! 106: #define clrbit(a, i) (((unsigned char *)(a))[(i) / NBBY] &= ~(1 << ((i) % NBBY)))
! 107: #endif
! 108: #ifndef isset
! 109: #define isset(a, i) (((const unsigned char *)(a))[(i) / NBBY] & (1 << ((i) % NBBY)))
! 110: #endif
! 111: #ifndef isclr
! 112: #define isclr(a, i) ((((const unsigned char *)(a))[(i) / NBBY] & (1 << ((i) % NBBY))) == 0)
! 113: #endif
! 114:
! 115: /* Macros for counting and rounding. */
! 116: #ifndef howmany
! 117: #define howmany(x, y) (((x) + ((y) - 1)) / (y))
! 118: #endif
! 119: #ifndef nitems
! 120: #define nitems(x) (sizeof((x)) / sizeof((x)[0]))
! 121: #endif
! 122: #ifndef rounddown
! 123: #define rounddown(x, y) (((x) / (y)) * (y))
! 124: #endif
! 125: #ifndef rounddown2
! 126: #define rounddown2(x, y) ((x) & (~((y) - 1))) /* if y is power of two */
! 127: #endif
! 128: #ifndef roundup
! 129: #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) /* to any y */
! 130: #endif
! 131: #ifndef roundup2
! 132: #define roundup2(x, y) (((x) + ((y) - 1)) & (~((y) - 1))) /* if y is powers of two */
! 133: #endif
! 134: #ifndef powerof2
! 135: #define powerof2(x) ((((x) - 1) & (x)) == 0)
! 136: #endif
! 137:
! 138: /* Macros for min/max. */
! 139: #ifndef MIN
! 140: #define MIN(a, b) (((a) < (b)) ? (a) : (b))
! 141: #endif
! 142: #ifndef MAX
! 143: #define MAX(a, b) (((a) > (b)) ? (a) : (b))
! 144: #endif
! 145:
! 146: #define E_ALIGN(x, a) (((x) + ((a) - 1)) & ~((a) - 1))
1.1 misho 147:
148:
1.6 ! misho 149: #define ELWIX_SYSM 0
! 150: #define ELWIX_MPOOL 1
1.1 misho 151:
1.6 ! misho 152: #define VACUUM_LEFT 1
! 153: #define VACUUM_BETWEEN 2
1.1 misho 154:
155:
156: // elwix_SetProg() Set program memory pool name
1.3 misho 157: void elwix_SetProg(const char *csProgName);
1.1 misho 158: // elwix_GetProg() Get program memory pool name
1.3 misho 159: const char *elwix_GetProg();
1.1 misho 160:
161: // elwix_GetErrno() Get error code of last operation
1.3 misho 162: int elwix_GetErrno();
1.1 misho 163: // elwix_GetError() Get error text of last operation
1.3 misho 164: const char *elwix_GetError();
1.1 misho 165:
166:
167: // elwix_mm_inuse() Check for memory management model
1.3 misho 168: int elwix_mm_inuse();
1.1 misho 169:
170:
171: /*
172: * elwixInit() - Init libelwix library memory management
173: *
174: * @mm = memory management (IO_SYSM or IO_MPOOL)
175: * @maxmem = memory limit
176: * return: -1 error or !=-1 used memory management model
177: */
1.3 misho 178: int elwixInit(int mm, unsigned long maxmem);
1.1 misho 179: /*
180: * elwixFini() - Finish libelwix library memory management
181: *
182: * return: none
183: */
1.3 misho 184: void elwixFini();
1.1 misho 185:
186: /* memory management hooks */
187: extern void *(*e_malloc)(size_t);
188: extern void *(*e_calloc)(size_t, size_t);
189: extern void *(*e_realloc)(void*, size_t);
190: extern char *(*e_strdup)(const char*);
191: extern void (*e_free)(void*);
192:
193:
194: /* Debug helper macros */
195:
196: /* Verbose macros */
197: extern int elwix_Verbose;
198: #define e_initVerbose(x) (elwix_Verbose = (x))
199: #define e_incVerbose (elwix_Verbose++)
200: #define e_decVerbose (elwix_Verbose--)
201:
1.2 misho 202: #define EVERBS(x) if ((x) <= elwix_Verbose)
203: #define EVERBOSE(x, fmt, ...) do { assert((fmt)); \
204: if ((x) <= elwix_Verbose) { \
205: char str[BUFSIZ] = { 0 }; \
206: snprintf(str, sizeof str, (fmt), ##__VA_ARGS__); \
207: syslog(LOG_DEBUG, "Verbose(%d):%s(%d): %s\n", \
208: (x), __func__, __LINE__, str); \
209: } \
210: } while (0)
1.1 misho 211:
212: /* Debug macros */
213: extern int elwix_Debug;
214: #define ELWIX_DEBUG_OFF 0x0
215: #define ELWIX_DEBUG_TRACE 0x1
216: #define ELWIX_DEBUG_LOG 0x2
217: #define ELWIX_DEBUG_ANY 0xFFFFFFFF
218:
1.5 misho 219: #define ETRACE() if (elwix_Debug & ELWIX_DEBUG_TRACE) \
1.4 misho 220: syslog(LOG_DEBUG, "I'm in %s(%d)\n", __func__, __LINE__)
1.1 misho 221: #define EDEBUG(x, fmt, ...) do { assert((fmt)); \
222: if ((x) & elwix_Debug) { \
223: char str[BUFSIZ] = { 0 }; \
224: snprintf(str, sizeof str, (fmt), ##__VA_ARGS__); \
225: syslog(LOG_DEBUG, "Debug(%d):%s(%d): %s\n", \
226: (x), __func__, __LINE__, str); \
227: } \
228: } while (0)
229:
230: /* Logger macro */
231: #define ELOGGER(x, fmt, ...) do { assert((fmt)); \
232: char str[BUFSIZ] = { 0 }; \
233: snprintf(str, sizeof str, (fmt), ##__VA_ARGS__); \
234: syslog((x), "Logger:%s(%d): %s\n", \
235: __func__, __LINE__, str); \
236: } while (0)
237:
238: /* Error state macros */
239: #define EERROR(x, fmt, ...) do { assert((fmt)); \
240: char str[BUFSIZ] = { 0 }; \
241: snprintf(str, sizeof str, (fmt), ##__VA_ARGS__); \
242: syslog(LOG_ERR, "Error:%s(%d): #%d - %s\n", \
243: __func__, __LINE__, (x), str); \
244: } while (0)
245: #define ESYSERR(x) do { \
246: if (x > 0 || errno) \
247: syslog(LOG_ERR, "Error(sys):%s(%d): #%d - %s\n", \
248: __func__, __LINE__, x > 0 ? x : errno, \
249: strerror(x > 0 ? x : errno)); \
250: } while (0)
251: #define ELIBERR(ait) do { \
252: if (ait##_GetErrno()) \
253: syslog(LOG_ERR, "Error(lib):%s(%d): #%d - %s\n", \
254: __func__, __LINE__, ait##_GetErrno(), \
255: ait##_GetError()); \
256: } while (0)
257:
258:
259: #endif
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