util-lib: move string table stuff into its own string-table.[ch]

This commit is contained in:
Lennart Poettering
2015-10-27 13:25:56 +01:00
parent 8fcde01280
commit 8b43440b7e
69 changed files with 215 additions and 96 deletions
+1
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@@ -44,6 +44,7 @@
#include "process-util.h"
#include "set.h"
#include "special.h"
#include "string-table.h"
#include "string-util.h"
#include "unit-name.h"
#include "user-util.h"
+1
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@@ -26,6 +26,7 @@
#include "locale-util.h"
#include "path-util.h"
#include "set.h"
#include "string-table.h"
#include "string-util.h"
#include "strv.h"
#include "utf8.h"
+1
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@@ -39,6 +39,7 @@
#include "process-util.h"
#include "signal-util.h"
#include "socket-util.h"
#include "string-table.h"
#include "string-util.h"
#include "terminal-util.h"
#include "util.h"
+1
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@@ -21,6 +21,7 @@
#include "missing.h"
#include "rlimit-util.h"
#include "string-table.h"
#include "util.h"
int setrlimit_closest(int resource, const struct rlimit *rlim) {
+1
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@@ -21,6 +21,7 @@
#include "parse-util.h"
#include "signal-util.h"
#include "string-table.h"
#include "string-util.h"
#include "util.h"
+1
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@@ -27,6 +27,7 @@
#include "path-util.h"
#include "process-util.h"
#include "smack-util.h"
#include "string-table.h"
#include "util.h"
#include "xattr-util.h"
+1
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@@ -38,6 +38,7 @@
#include "parse-util.h"
#include "path-util.h"
#include "socket-util.h"
#include "string-table.h"
#include "string-util.h"
#include "util.h"
+35
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@@ -0,0 +1,35 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd 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; either version 2.1 of the License, or
(at your option) any later version.
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include "string-table.h"
ssize_t string_table_lookup(const char * const *table, size_t len, const char *key) {
size_t i;
if (!key)
return -1;
for (i = 0; i < len; ++i)
if (streq_ptr(table[i], key))
return (ssize_t) i;
return -1;
}
+88
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@@ -0,0 +1,88 @@
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#pragma once
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd 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; either version 2.1 of the License, or
(at your option) any later version.
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include "macro.h"
#include "parse-util.h"
#include "string-util.h"
ssize_t string_table_lookup(const char * const *table, size_t len, const char *key);
/* For basic lookup tables with strictly enumerated entries */
#define _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \
scope const char *name##_to_string(type i) { \
if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \
return NULL; \
return name##_table[i]; \
}
#define _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,scope) \
scope type name##_from_string(const char *s) { \
return (type) string_table_lookup(name##_table, ELEMENTSOF(name##_table), s); \
}
#define _DEFINE_STRING_TABLE_LOOKUP(name,type,scope) \
_DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \
_DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,scope) \
struct __useless_struct_to_allow_trailing_semicolon__
#define DEFINE_STRING_TABLE_LOOKUP(name,type) _DEFINE_STRING_TABLE_LOOKUP(name,type,)
#define DEFINE_PRIVATE_STRING_TABLE_LOOKUP(name,type) _DEFINE_STRING_TABLE_LOOKUP(name,type,static)
#define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,static)
#define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,static)
/* For string conversions where numbers are also acceptable */
#define DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(name,type,max) \
int name##_to_string_alloc(type i, char **str) { \
char *s; \
if (i < 0 || i > max) \
return -ERANGE; \
if (i < (type) ELEMENTSOF(name##_table)) { \
s = strdup(name##_table[i]); \
if (!s) \
return -ENOMEM; \
} else { \
if (asprintf(&s, "%i", i) < 0) \
return -ENOMEM; \
} \
*str = s; \
return 0; \
} \
type name##_from_string(const char *s) { \
type i; \
unsigned u = 0; \
if (!s) \
return (type) -1; \
for (i = 0; i < (type) ELEMENTSOF(name##_table); i++) \
if (streq_ptr(name##_table[i], s)) \
return i; \
if (safe_atou(s, &u) >= 0 && u <= max) \
return (type) u; \
return (type) -1; \
} \
struct __useless_struct_to_allow_trailing_semicolon__
+3 -2
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@@ -24,12 +24,13 @@
#include "bus-label.h"
#include "def.h"
#include "hexdecoct.h"
#include "path-util.h"
#include "string-table.h"
#include "string-util.h"
#include "strv.h"
#include "util.h"
#include "unit-name.h"
#include "hexdecoct.h"
#include "util.h"
#define VALID_CHARS \
DIGITS LETTERS \
+1 -13
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@@ -94,6 +94,7 @@
#include "random-util.h"
#include "signal-util.h"
#include "sparse-endian.h"
#include "string-table.h"
#include "string-util.h"
#include "strv.h"
#include "terminal-util.h"
@@ -1450,19 +1451,6 @@ int syslog_parse_priority(const char **p, int *priority, bool with_facility) {
return 1;
}
ssize_t string_table_lookup(const char * const *table, size_t len, const char *key) {
size_t i;
if (!key)
return -1;
for (i = 0; i < len; ++i)
if (streq_ptr(table[i], key))
return (ssize_t) i;
return -1;
}
int version(void) {
puts(PACKAGE_STRING "\n"
SYSTEMD_FEATURES);
-56
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@@ -83,62 +83,6 @@ static inline const char* one_zero(bool b) {
return b ? "1" : "0";
}
/* For basic lookup tables with strictly enumerated entries */
#define _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \
scope const char *name##_to_string(type i) { \
if (i < 0 || i >= (type) ELEMENTSOF(name##_table)) \
return NULL; \
return name##_table[i]; \
}
ssize_t string_table_lookup(const char * const *table, size_t len, const char *key);
#define _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,scope) \
scope type name##_from_string(const char *s) { \
return (type) string_table_lookup(name##_table, ELEMENTSOF(name##_table), s); \
}
#define _DEFINE_STRING_TABLE_LOOKUP(name,type,scope) \
_DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,scope) \
_DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,scope) \
struct __useless_struct_to_allow_trailing_semicolon__
#define DEFINE_STRING_TABLE_LOOKUP(name,type) _DEFINE_STRING_TABLE_LOOKUP(name,type,)
#define DEFINE_PRIVATE_STRING_TABLE_LOOKUP(name,type) _DEFINE_STRING_TABLE_LOOKUP(name,type,static)
#define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_TO_STRING(name,type,static)
#define DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(name,type) _DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(name,type,static)
/* For string conversions where numbers are also acceptable */
#define DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(name,type,max) \
int name##_to_string_alloc(type i, char **str) { \
char *s; \
if (i < 0 || i > max) \
return -ERANGE; \
if (i < (type) ELEMENTSOF(name##_table)) { \
s = strdup(name##_table[i]); \
if (!s) \
return -ENOMEM; \
} else { \
if (asprintf(&s, "%i", i) < 0) \
return -ENOMEM; \
} \
*str = s; \
return 0; \
} \
type name##_from_string(const char *s) { \
type i; \
unsigned u = 0; \
if (!s) \
return (type) -1; \
for (i = 0; i < (type) ELEMENTSOF(name##_table); i++) \
if (streq_ptr(name##_table[i], s)) \
return i; \
if (safe_atou(s, &u) >= 0 && u <= max) \
return (type) u; \
return (type) -1; \
} \
struct __useless_struct_to_allow_trailing_semicolon__
bool fstype_is_network(const char *fstype);
#define xsprintf(buf, fmt, ...) \
+1
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@@ -25,6 +25,7 @@
#include "fileio.h"
#include "process-util.h"
#include "string-table.h"
#include "string-util.h"
#include "util.h"
#include "virt.h"