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| author | Sergey Poznyakoff <gray@gnu.org.ua> | 2016-02-21 22:58:19 +0200 |
|---|---|---|
| committer | Sergey Poznyakoff <gray@gnu.org.ua> | 2016-07-04 15:43:13 +0300 |
| commit | 8ce8bfb30c64785d0dddfb319e48ff6cbc5f4405 (patch) | |
| tree | 6f375a46b6f85ec469e89707a33f28718fe24f60 /include | |
| parent | 1705e5d927dba731c135e1192bfdee421829786a (diff) | |
| download | grecs-8ce8bfb30c64785d0dddfb319e48ff6cbc5f4405.tar.gz grecs-8ce8bfb30c64785d0dddfb319e48ff6cbc5f4405.tar.bz2 | |
Prevent memory leaks when re-processing values of string type.
Port of a3f25ce2 from master.
* include/grecs/table.h (GRECS_CONST): New flag.
* src/tree.c (grecs_string_convert): For string types, free the
old value prior to assigning the new one, unless the GRECS_CONST
flag is set. In any case, clear the GRECS_CONST flag after
assigning new value.
Diffstat (limited to 'include')
| -rw-r--r-- | include/grecs/table.h | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/include/grecs/table.h b/include/grecs/table.h index 4210c6f..d7d0a8c 100644 --- a/include/grecs/table.h +++ b/include/grecs/table.h @@ -40,12 +40,16 @@ enum grecs_data_type { grecs_type_null }; -#define GRECS_DFLT 0x00 -#define GRECS_AGGR 0x01 -#define GRECS_MULT 0x02 -#define GRECS_INAC 0x04 -#define GRECS_LIST 0x08 -#define GRECS_HIDDEN 0x10 +#define GRECS_DFLT 0x00 /* Default keyword flags */ +#define GRECS_AGGR 0x01 /* Multiple entries aggregate */ +#define GRECS_MULT 0x02 /* Statement can appear multiple times */ +#define GRECS_INAC 0x04 /* Inactive keyword */ +#define GRECS_LIST 0x08 /* Value is a list of declared type */ +#define GRECS_HIDDEN 0x10 /* Hidden keyword: don't display in help output */ +#define GRECS_CONST 0x20 /* For string types: initial value is constant, + don't try to free it before assigning new value. + This flag is cleared after the first assignment. + */ enum grecs_callback_command { grecs_callback_section_begin, |