Operating system specific workarounds. More...
#include <limits.h>#include <inttypes.h>#include <sys/types.h>#include <stdarg.h>
Macros | |
| #define | ELEKTRA_MAX_ARRAY_SIZE (21) |
| The buffer size needed for an array name. More... | |
| #define | KDB_FILE_MODE 0600 |
| Default Mode. More... | |
| #define | KDB_DIR_MODE 0100 |
| Default directory mode. More... | |
| #define | KDB_MAX_PATH_LENGTH _POSIX_PATH_MAX |
| KDB_MAX_PATH_LENGTH will be the value for longest possible filenames on the system. More... | |
| #define | KDB_PATH_SEPARATOR '/' |
| Separator for key names. More... | |
| #define | KDB_PATH_ESCAPE '\\' |
| Escape symbol for special characters in the key name. More... | |
| #define | KDB_MAX_UCHAR (UCHAR_MAX+1) |
| For iteration over trie children/values. More... | |
Detailed Description
Operating system specific workarounds.
Integer Types must be at least 32bit:
Type Purpose Limits int Integral Fast Type INT_MIN, INT_MAX size_t size of array or string 0, SIZE_MAX ssize_t size with error cond. -1, SSIZE_MAX(<SIZE_MAX) time_t Seconds since 1970 0,.. recommended: 64 bit uid_t User identification 0,.. gid_t Group identification 0,..
Following Elektra specific types must be defined with at least 32 bit:
Type Purpose keyswitch_t For keyNew option_t For kdbGet, kdbSet and ksLookup* cursor_t stores information to find a position in a keyset
Following constants must be defined:
KDB_PATH_SEPARATOR how to delimit pathnames KDB_FILE_MODE the standard mode for keys KDB_DIR_MODE the mode to add (|=) for key directories KDB_MAX_UCHAR the maximum value of unsigned char
Following limits must be defined (in addition to limits mentioned above for types):
KDB_MAX_PATH_LENGTH the maximum length for a pathname
In addition to the types the ... or va_list must be supported, this is ISO C and should happen by including <stdarg.h>.
Go ahead and write a #ifdef block for your operating system when the POSIX defaults are not ok
- Copyright
- BSD License (see doc/COPYING or http://www.libelektra.org)
Macro Definition Documentation
| #define ELEKTRA_MAX_ARRAY_SIZE (21) |
The buffer size needed for an array name.
The size of the buffer so that the buffer can contain:
- a # in the beginning
- up to 9 underscores are needed as prefix
- a 32bit number has a maximum of 10 digits
- one byte for null termination
E.g. #_________4000000000\0
| #define KDB_DIR_MODE 0100 |
Default directory mode.
This mode will be used for new directories. Will be ORed together with KDB_FILE_MODE to get the permissions of an directory.
| #define KDB_FILE_MODE 0600 |
Default Mode.
This mode will be used for new files
| #define KDB_MAX_PATH_LENGTH _POSIX_PATH_MAX |
KDB_MAX_PATH_LENGTH will be the value for longest possible filenames on the system.
| #define KDB_MAX_UCHAR (UCHAR_MAX+1) |
For iteration over trie children/values.
for (i=0; i<KDB_MAX_UCHAR; ++i)
| #define KDB_PATH_ESCAPE '\\' |
Escape symbol for special characters in the key name.
- See also
- here .
| #define KDB_PATH_SEPARATOR '/' |
