1: /*************************************************************************
2: * (C) 2013 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
3: * by Michael Pounov <misho@elwix.org>
4: *
5: * $Author: misho $
6: * $Id: elwix.h,v 1.7 2013/06/30 22:10:27 misho Exp $
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>
53: #include <sys/param.h>
54: #include <sys/limits.h>
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>
69: #include <elwix/aav.h>
70: #include <elwix/anet.h>
71: #include <elwix/atime.h>
72: #include <elwix/apack.h>
73:
74:
75: #ifndef STRSIZ
76: #define STRSIZ 256
77: #endif
78:
79: #ifndef NBBY
80: #define NBBY 8 /* number of bits in a byte */
81: #endif
82:
83: #ifndef be16toh
84: #define be16toh betoh16
85: #endif
86: #ifndef be32toh
87: #define be32toh betoh32
88: #endif
89: #ifndef be64toh
90: #define be64toh betoh64
91: #endif
92: #ifndef le16toh
93: #define le16toh letoh16
94: #endif
95: #ifndef le32toh
96: #define le32toh letoh32
97: #endif
98: #ifndef le64toh
99: #define le64toh letoh64
100: #endif
101:
102: /* Bit map related macros. */
103: #ifndef setbit
104: #define setbit(a, i) (((unsigned char *)(a))[(i) / NBBY] |= 1 << ((i) % NBBY))
105: #endif
106: #ifndef clrbit
107: #define clrbit(a, i) (((unsigned char *)(a))[(i) / NBBY] &= ~(1 << ((i) % NBBY)))
108: #endif
109: #ifndef isset
110: #define isset(a, i) (((const unsigned char *)(a))[(i) / NBBY] & (1 << ((i) % NBBY)))
111: #endif
112: #ifndef isclr
113: #define isclr(a, i) ((((const unsigned char *)(a))[(i) / NBBY] & (1 << ((i) % NBBY))) == 0)
114: #endif
115:
116: /* Macros for counting and rounding. */
117: #ifndef howmany
118: #define howmany(x, y) (((x) + ((y) - 1)) / (y))
119: #endif
120: #ifndef nitems
121: #define nitems(x) (sizeof((x)) / sizeof((x)[0]))
122: #endif
123: #ifndef rounddown
124: #define rounddown(x, y) (((x) / (y)) * (y))
125: #endif
126: #ifndef rounddown2
127: #define rounddown2(x, y) ((x) & (~((y) - 1))) /* if y is power of two */
128: #endif
129: #ifndef roundup
130: #define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y)) /* to any y */
131: #endif
132: #ifndef roundup2
133: #define roundup2(x, y) (((x) + ((y) - 1)) & (~((y) - 1))) /* if y is powers of two */
134: #endif
135: #ifndef powerof2
136: #define powerof2(x) ((((x) - 1) & (x)) == 0)
137: #endif
138:
139: /* Macros for min/max. */
140: #ifndef MIN
141: #define MIN(a, b) (((a) < (b)) ? (a) : (b))
142: #endif
143: #ifndef MAX
144: #define MAX(a, b) (((a) > (b)) ? (a) : (b))
145: #endif
146:
147: #define E_ALIGN(x, a) (((x) + ((a) - 1)) & ~((a) - 1))
148:
149:
150: #define ELWIX_SYSM 0
151: #define ELWIX_MPOOL 1
152:
153: #define VACUUM_LEFT 1
154: #define VACUUM_BETWEEN 2
155:
156:
157: // elwix_SetProg() Set program memory pool name
158: void elwix_SetProg(const char *csProgName);
159: // elwix_GetProg() Get program memory pool name
160: const char *elwix_GetProg();
161:
162: // elwix_GetErrno() Get error code of last operation
163: int elwix_GetErrno();
164: // elwix_GetError() Get error text of last operation
165: const char *elwix_GetError();
166:
167:
168: // elwix_mm_inuse() Check for memory management model
169: int elwix_mm_inuse();
170:
171:
172: /*
173: * elwixInit() - Init libelwix library memory management
174: *
175: * @mm = memory management (IO_SYSM or IO_MPOOL)
176: * @maxmem = memory limit
177: * return: -1 error or !=-1 used memory management model
178: */
179: int elwixInit(int mm, unsigned long maxmem);
180: /*
181: * elwixFini() - Finish libelwix library memory management
182: *
183: * return: none
184: */
185: void elwixFini();
186:
187: /* memory management hooks */
188: extern void *(*e_malloc)(size_t);
189: extern void *(*e_calloc)(size_t, size_t);
190: extern void *(*e_realloc)(void*, size_t);
191: extern char *(*e_strdup)(const char*);
192: extern void (*e_free)(void*);
193:
194:
195: /* Debug helper macros */
196:
197: /* Verbose macros */
198: extern int elwix_Verbose;
199: #define e_initVerbose(x) (elwix_Verbose = (x))
200: #define e_incVerbose (elwix_Verbose++)
201: #define e_decVerbose (elwix_Verbose--)
202:
203: #define EVERBS(x) if ((x) <= elwix_Verbose)
204: #define EVERBOSE(x, fmt, ...) do { assert((fmt)); \
205: if ((x) <= elwix_Verbose) { \
206: char str[BUFSIZ] = { 0 }; \
207: snprintf(str, sizeof str, (fmt), ##__VA_ARGS__); \
208: syslog(LOG_DEBUG, "Verbose(%d):%s(%d): %s\n", \
209: (x), __func__, __LINE__, str); \
210: } \
211: } while (0)
212:
213: /* Debug macros */
214: extern int elwix_Debug;
215: #define ELWIX_DEBUG_OFF 0x0
216: #define ELWIX_DEBUG_TRACE 0x1
217: #define ELWIX_DEBUG_LOG 0x2
218: #define ELWIX_DEBUG_ANY 0xFFFFFFFF
219:
220: #define ETRACE() if (elwix_Debug & ELWIX_DEBUG_TRACE) \
221: syslog(LOG_DEBUG, "I'm in %s(%d)\n", __func__, __LINE__)
222: #define EDEBUG(x, fmt, ...) do { assert((fmt)); \
223: if ((x) & elwix_Debug) { \
224: char str[BUFSIZ] = { 0 }; \
225: snprintf(str, sizeof str, (fmt), ##__VA_ARGS__); \
226: syslog(LOG_DEBUG, "Debug(%d):%s(%d): %s\n", \
227: (x), __func__, __LINE__, str); \
228: } \
229: } while (0)
230:
231: /* Logger macro */
232: #define ELOGGER(x, fmt, ...) do { assert((fmt)); \
233: char str[BUFSIZ] = { 0 }; \
234: snprintf(str, sizeof str, (fmt), ##__VA_ARGS__); \
235: syslog((x), "Logger:%s(%d): %s\n", \
236: __func__, __LINE__, str); \
237: } while (0)
238:
239: /* Error state macros */
240: #define EERROR(x, fmt, ...) do { assert((fmt)); \
241: char str[BUFSIZ] = { 0 }; \
242: snprintf(str, sizeof str, (fmt), ##__VA_ARGS__); \
243: syslog(LOG_ERR, "Error:%s(%d): #%d - %s\n", \
244: __func__, __LINE__, (x), str); \
245: } while (0)
246: #define ESYSERR(x) do { \
247: if (x > 0 || errno) \
248: syslog(LOG_ERR, "Error(sys):%s(%d): #%d - %s\n", \
249: __func__, __LINE__, x > 0 ? x : errno, \
250: strerror(x > 0 ? x : errno)); \
251: } while (0)
252: #define ELIBERR(ait) do { \
253: if (ait##_GetErrno()) \
254: syslog(LOG_ERR, "Error(lib):%s(%d): #%d - %s\n", \
255: __func__, __LINE__, ait##_GetErrno(), \
256: ait##_GetError()); \
257: } while (0)
258:
259:
260: #endif
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