2 * Copyright (C) 2008 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file adu.h Global definitions. */
14 #include <time.h> /* time(), localtime() */
23 #include "gcc-compat.h"
24 #include "portable_io.h"
26 /** debug loglevel, gets really noisy */
28 /** still noisy, but won't fill your disk */
30 /** normal, but significant event */
32 /** unexpected event that can be handled */
34 /** unhandled error condition */
36 /** system might be unreliable */
38 /** last message before exit */
41 /** Log messages with lower priority than that will not be compiled in. */
42 #define COMPILE_TIME_LOGLEVEL 0
45 #if DEBUG > COMPILE_TIME_LOGLEVEL
46 #define DEBUG_LOG(f,...) __log(DEBUG, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
48 #define DEBUG_LOG(...) do {;} while (0)
51 #if INFO > COMPILE_TIME_LOGLEVEL
52 #define INFO_LOG(f,...) __log(INFO, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
54 #define INFO_LOG(...) do {;} while (0)
57 #if NOTICE > COMPILE_TIME_LOGLEVEL
58 #define NOTICE_LOG(f,...) __log(NOTICE, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
60 #define NOTICE_LOG(...) do {;} while (0)
63 #if WARNING > COMPILE_TIME_LOGLEVEL
64 #define WARNING_LOG(f,...) __log(WARNING, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
66 #define WARNING_LOG(...) do {;} while (0)
69 #if ERROR > COMPILE_TIME_LOGLEVEL
70 #define ERROR_LOG(f,...) __log(ERROR, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
72 #define ERROR_LOG(...) do {;} while (0)
75 #if CRIT > COMPILE_TIME_LOGLEVEL
76 #define CRIT_LOG(f,...) __log(CRIT, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
78 #define CRIT_LOG(...) do {;} while (0)
81 #if EMERG > COMPILE_TIME_LOGLEVEL
82 #define EMERG_LOG(f,...) __log(EMERG, "%s: " f, __FUNCTION__, ## __VA_ARGS__)
84 #define EMERG_LOG(...)
89 * Write a log message to a dynamically allocated string.
91 * \param fmt Usual format string.
92 * \param p Result pointer.
95 #define VSPRINTF(fmt, p) \
99 p = adu_malloc(size); \
102 /* Try to print in the allocated space. */ \
104 n = vsnprintf(p, size, fmt, ap); \
106 /* If that worked, return the string. */ \
107 if (n > -1 && n < size) \
109 /* Else try again with more space. */ \
110 if (n > -1) /* glibc 2.1 */ \
111 size = n + 1; /* precisely what is needed */ \
112 else /* glibc 2.0 */ \
113 size *= 2; /* twice the old size */ \
114 p = adu_realloc(p, size); \
118 /** Evaluates to 1 if x < y, to -1 if x > y and to 0 if x == y. */
119 #define NUM_COMPARE(x, y) ((int)((x) < (y)) - (int)((x) > (y)))
121 /** The columns of the directory table. */
122 enum dir_table_columns {
123 /** The name of the directory. */
125 /** The dir count number. */
127 /** The number of the parent directory. */
129 /** The number of bytes of all regular files. */
131 /** The number of all regular files. */
133 /** Number of columns in this table. */
137 extern uint32_t num_uids;
138 extern struct osl_table *dir_table;
140 /** The adu command line options. */
141 extern struct gengetopt_args_info conf;
144 * The select command line options.
146 * Either given at the command line, or via the \a set command
147 * in interactive mode.
149 extern struct select_args_info select_conf;
152 * Compare two osl objects pointing to unsigned integers of 64 bit size.
154 * \param obj1 Pointer to the first integer.
155 * \param obj2 Pointer to the second integer.
157 * \return The values required for an osl compare function.
159 * \sa osl_compare_func, osl_hash_compare().
161 static inline int uint64_compare(const struct osl_object *obj1,
162 const struct osl_object *obj2)
164 uint64_t d1 = read_u64((const char *)obj1->data);
165 uint64_t d2 = read_u64((const char *)obj2->data);
175 * Compare the size of two directories
177 * \param obj1 Pointer to the first object.
178 * \param obj2 Pointer to the second object.
180 * This function first compares the size values as usual integers. If they compare as
181 * equal, the address of \a obj1 and \a obj2 are compared. So this compare function
182 * returns zero if and only if \a obj1 and \a obj2 point to the same memory area.
184 static inline int size_compare(const struct osl_object *obj1, const struct osl_object *obj2)
186 uint64_t d1 = *(uint64_t *)obj1->data;
187 uint64_t d2 = *(uint64_t *)obj2->data;
188 int ret = NUM_COMPARE(d2, d1);
192 //INFO_LOG("addresses: %p, %p\n", obj1->data, obj2->data);
193 return NUM_COMPARE(obj2->data, obj1->data);
197 __printf_2_3 void __log(int, const char*, ...);
198 int open_dir_table(int create);
199 void check_signals(void);
200 void close_all_tables(void);
202 int com_create(void);
205 void print_interactive_help(void);
206 int com_interactive(void);