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core: optimize search of options in configuration sections 

Since options are sorted in sections, it is faster to search from the last
option to the first one.

For configuration files with many options in a single section (like
plugins.conf), the load of configuration file is about 2 to 3x faster.
v2.8-utf8proc
Sébastien Helleu 2019-10-23 19:41:43 +02:00
parent fbc9faed42
commit ecc7edda9e
2 changed files with 33 additions and 16 deletions
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1
ChangeLog.adoc
View File

@ -39,6 +39,7 @@ New features::
Bug fixes::
* core: optimize load of configuration files
* core: fix window separators not respecting window splits (issue #630)
* core: fix cursor mode info when prefix_align is none and with words split across lines (issue #610, issue #617, issue #619)
* core: add support of reverse video in ANSI color codes

48
src/core/wee-config-file.c
View File

@ -416,12 +416,13 @@ config_file_option_find_pos (struct t_config_section *section, const char *name)
if (section && name)
{
for (ptr_option = section->options; ptr_option;
ptr_option = ptr_option->next_option)
for (ptr_option = section->last_option; ptr_option;
ptr_option = ptr_option->prev_option)
{
if (string_strcasecmp (name, ptr_option->name) < 0)
return ptr_option;
if (string_strcasecmp (name, ptr_option->name) >= 0)
return ptr_option->next_option;
}
return section->options;
}
/* position not found (we will add to the end of list) */
@ -832,14 +833,18 @@ config_file_search_option (struct t_config_file *config_file,
{
struct t_config_section *ptr_section;
struct t_config_option *ptr_option;
int rc;
if (section)
{
for (ptr_option = section->options; ptr_option;
ptr_option = ptr_option->next_option)
for (ptr_option = section->last_option; ptr_option;
ptr_option = ptr_option->prev_option)
{
if (string_strcasecmp (ptr_option->name, option_name) == 0)
rc = string_strcasecmp (ptr_option->name, option_name);
if (rc == 0)
return ptr_option;
else if (rc < 0)
return NULL;
}
}
else if (config_file)
@ -847,11 +852,14 @@ config_file_search_option (struct t_config_file *config_file,
for (ptr_section = config_file->sections; ptr_section;
ptr_section = ptr_section->next_section)
{
for (ptr_option = ptr_section->options; ptr_option;
ptr_option = ptr_option->next_option)
for (ptr_option = ptr_section->last_option; ptr_option;
ptr_option = ptr_option->prev_option)
{
if (string_strcasecmp (ptr_option->name, option_name) == 0)
rc = string_strcasecmp (ptr_option->name, option_name);
if (rc == 0)
return ptr_option;
else if (rc < 0)
return NULL;
}
}
}
@ -876,21 +884,25 @@ config_file_search_section_option (struct t_config_file *config_file,
{
struct t_config_section *ptr_section;
struct t_config_option *ptr_option;
int rc;
*section_found = NULL;
*option_found = NULL;
if (section)
{
for (ptr_option = section->options; ptr_option;
ptr_option = ptr_option->next_option)
for (ptr_option = section->last_option; ptr_option;
ptr_option = ptr_option->prev_option)
{
if (string_strcasecmp (ptr_option->name, option_name) == 0)
rc = string_strcasecmp (ptr_option->name, option_name);
if (rc == 0)
{
*section_found = section;
*option_found = ptr_option;
return;
}
else if (rc < 0)
return;
}
}
else if (config_file)
@ -898,14 +910,18 @@ config_file_search_section_option (struct t_config_file *config_file,
for (ptr_section = config_file->sections; ptr_section;
ptr_section = ptr_section->next_section)
{
for (ptr_option = ptr_section->options; ptr_option;
ptr_option = ptr_option->next_option)
for (ptr_option = ptr_section->last_option; ptr_option;
ptr_option = ptr_option->prev_option)
{
if (string_strcasecmp (ptr_option->name, option_name) == 0)
rc = string_strcasecmp (ptr_option->name, option_name);
if (rc == 0)
{
*section_found = ptr_section;
*option_found = ptr_option;
return;
}
else if (rc < 0)
return;
}
}
}