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memory management for block parameters

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This commit is contained in:
BVK Chaitanya 2010-07-22 04:49:05 +05:30
parent 9ebedc24f2
commit 3a082b7f2a
6 changed files with 78 additions and 5 deletions
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13
include/grub/script_sh.h
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@ -42,6 +42,10 @@ struct grub_script
unsigned refcnt;
struct grub_script_mem *mem;
struct grub_script_cmd *cmd;
/* Other grub_script's from block arguments. */
struct grub_script *siblings;
struct grub_script *children;
};
typedef enum
@ -222,6 +226,9 @@ struct grub_parser_param
/* The memory that was used while parsing and scanning. */
struct grub_script_mem *memused;
/* The block argument scripts. */
struct grub_script *scripts;
/* The result of the parser. */
struct grub_script_cmd *parsed;
@ -365,13 +372,17 @@ grub_normal_parse_line (char *line, grub_reader_getline_t getline);
static inline struct grub_script *
grub_script_get (struct grub_script *script)
{
script->refcnt++;
if (script)
script->refcnt++;
return script;
}
static inline void
grub_script_put (struct grub_script *script)
{
if (! script)
return;
if (script->refcnt == 0)
grub_script_free (script);
else