core: add pointer in some callbacks (closes #406)

This pointer is the first argument received by callbacks, and the
existing argument "data" is now automatically freed by WeeChat when the
object containing the callback is removed.

With this new pointer, the linked list of callbacks in scripts has been
removed. This will improve speed of scripts (using a lot of hooks),
reduce memory used by scripts and reduce time to unload scripts.

Following functions are affected in the C API:

* exec_on_files
* config_new
* config_new_section
* config_new_option
* hook_command
* hook_command_run
* hook_timer
* hook_fd
* hook_process
* hook_process_hashtable
* hook_connect
* hook_print
* hook_signal
* hook_hsignal
* hook_config
* hook_completion
* hook_modifier
* hook_info
* hook_info_hashtable
* hook_infolist
* hook_hdata
* hook_focus
* unhook_all_plugin
* buffer_new
* bar_item_new
* upgrade_new
* upgrade_read

1 files changed, 13 insertions, 112 deletions

diff --git a/doc/it/autogen/plugin_api/hdata.asciidoc b/doc/it/autogen/plugin_api/hdata.asciidoc
index c49a21e7d..05366191f 100644
--- a/doc/it/autogen/plugin_api/hdata.asciidoc
+++ b/doc/it/autogen/plugin_api/hdata.asciidoc
@@ -2,21 +2,6 @@
 // This file is auto-generated by script docgen.py.
 // DO NOT EDIT BY HAND!
 //
-* [[hdata_guile_callback]]<<hdata_guile_callback,'guile_callback'>>: callback di uno script
-** plugin: guile
-** variables:
-*** 'script' (pointer, hdata: "guile_script")
-*** 'function' (string)
-*** 'data' (string)
-*** 'config_file' (pointer, hdata: "config_file")
-*** 'config_section' (pointer, hdata: "config_section")
-*** 'config_option' (pointer, hdata: "config_option")
-*** 'hook' (pointer)
-*** 'buffer' (pointer, hdata: "buffer")
-*** 'bar_item' (pointer, hdata: "bar_item")
-*** 'upgrade_file' (pointer)
-*** 'prev_callback' (pointer, hdata: "guile_callback")
-*** 'next_callback' (pointer, hdata: "guile_callback")
 * [[hdata_guile_script]]<<hdata_guile_script,'guile_script'>>: elenco degli script
 ** plugin: guile
 ** variables:
@@ -29,7 +14,6 @@
 *** 'description' (string)
 *** 'shutdown_func' (string)
 *** 'charset' (string)
-*** 'callbacks' (pointer, hdata: "guile_callback")
 *** 'unloading' (integer)
 *** 'prev_script' (pointer, hdata: "guile_script")
 *** 'next_script' (pointer, hdata: "guile_script")
@@ -229,21 +213,6 @@
 ** lists:
 *** 'irc_servers'
 *** 'last_irc_server'
-* [[hdata_javascript_callback]]<<hdata_javascript_callback,'javascript_callback'>>: callback di uno script
-** plugin: javascript
-** variables:
-*** 'script' (pointer, hdata: "javascript_script")
-*** 'function' (string)
-*** 'data' (string)
-*** 'config_file' (pointer, hdata: "config_file")
-*** 'config_section' (pointer, hdata: "config_section")
-*** 'config_option' (pointer, hdata: "config_option")
-*** 'hook' (pointer)
-*** 'buffer' (pointer, hdata: "buffer")
-*** 'bar_item' (pointer, hdata: "bar_item")
-*** 'upgrade_file' (pointer)
-*** 'prev_callback' (pointer, hdata: "javascript_callback")
-*** 'next_callback' (pointer, hdata: "javascript_callback")
 * [[hdata_javascript_script]]<<hdata_javascript_script,'javascript_script'>>: elenco degli script
 ** plugin: javascript
 ** variables:
@@ -256,28 +225,12 @@
 *** 'description' (string)
 *** 'shutdown_func' (string)
 *** 'charset' (string)
-*** 'callbacks' (pointer, hdata: "javascript_callback")
 *** 'unloading' (integer)
 *** 'prev_script' (pointer, hdata: "javascript_script")
 *** 'next_script' (pointer, hdata: "javascript_script")
 ** lists:
 *** 'last_script'
 *** 'scripts'
-* [[hdata_lua_callback]]<<hdata_lua_callback,'lua_callback'>>: callback di uno script
-** plugin: lua
-** variables:
-*** 'script' (pointer, hdata: "lua_script")
-*** 'function' (string)
-*** 'data' (string)
-*** 'config_file' (pointer, hdata: "config_file")
-*** 'config_section' (pointer, hdata: "config_section")
-*** 'config_option' (pointer, hdata: "config_option")
-*** 'hook' (pointer)
-*** 'buffer' (pointer, hdata: "buffer")
-*** 'bar_item' (pointer, hdata: "bar_item")
-*** 'upgrade_file' (pointer)
-*** 'prev_callback' (pointer, hdata: "lua_callback")
-*** 'next_callback' (pointer, hdata: "lua_callback")
 * [[hdata_lua_script]]<<hdata_lua_script,'lua_script'>>: elenco degli script
 ** plugin: lua
 ** variables:
@@ -290,28 +243,12 @@
 *** 'description' (string)
 *** 'shutdown_func' (string)
 *** 'charset' (string)
-*** 'callbacks' (pointer, hdata: "lua_callback")
 *** 'unloading' (integer)
 *** 'prev_script' (pointer, hdata: "lua_script")
 *** 'next_script' (pointer, hdata: "lua_script")
 ** lists:
 *** 'last_script'
 *** 'scripts'
-* [[hdata_perl_callback]]<<hdata_perl_callback,'perl_callback'>>: callback di uno script
-** plugin: perl
-** variables:
-*** 'script' (pointer, hdata: "perl_script")
-*** 'function' (string)
-*** 'data' (string)
-*** 'config_file' (pointer, hdata: "config_file")
-*** 'config_section' (pointer, hdata: "config_section")
-*** 'config_option' (pointer, hdata: "config_option")
-*** 'hook' (pointer)
-*** 'buffer' (pointer, hdata: "buffer")
-*** 'bar_item' (pointer, hdata: "bar_item")
-*** 'upgrade_file' (pointer)
-*** 'prev_callback' (pointer, hdata: "perl_callback")
-*** 'next_callback' (pointer, hdata: "perl_callback")
 * [[hdata_perl_script]]<<hdata_perl_script,'perl_script'>>: elenco degli script
 ** plugin: perl
 ** variables:
@@ -324,28 +261,12 @@
 *** 'description' (string)
 *** 'shutdown_func' (string)
 *** 'charset' (string)
-*** 'callbacks' (pointer, hdata: "perl_callback")
 *** 'unloading' (integer)
 *** 'prev_script' (pointer, hdata: "perl_script")
 *** 'next_script' (pointer, hdata: "perl_script")
 ** lists:
 *** 'last_script'
 *** 'scripts'
-* [[hdata_python_callback]]<<hdata_python_callback,'python_callback'>>: callback di uno script
-** plugin: python
-** variables:
-*** 'script' (pointer, hdata: "python_script")
-*** 'function' (string)
-*** 'data' (string)
-*** 'config_file' (pointer, hdata: "config_file")
-*** 'config_section' (pointer, hdata: "config_section")
-*** 'config_option' (pointer, hdata: "config_option")
-*** 'hook' (pointer)
-*** 'buffer' (pointer, hdata: "buffer")
-*** 'bar_item' (pointer, hdata: "bar_item")
-*** 'upgrade_file' (pointer)
-*** 'prev_callback' (pointer, hdata: "python_callback")
-*** 'next_callback' (pointer, hdata: "python_callback")
 * [[hdata_python_script]]<<hdata_python_script,'python_script'>>: elenco degli script
 ** plugin: python
 ** variables:
@@ -358,28 +279,12 @@
 *** 'description' (string)
 *** 'shutdown_func' (string)
 *** 'charset' (string)
-*** 'callbacks' (pointer, hdata: "python_callback")
 *** 'unloading' (integer)
 *** 'prev_script' (pointer, hdata: "python_script")
 *** 'next_script' (pointer, hdata: "python_script")
 ** lists:
 *** 'last_script'
 *** 'scripts'
-* [[hdata_ruby_callback]]<<hdata_ruby_callback,'ruby_callback'>>: callback di uno script
-** plugin: ruby
-** variables:
-*** 'script' (pointer, hdata: "ruby_script")
-*** 'function' (string)
-*** 'data' (string)
-*** 'config_file' (pointer, hdata: "config_file")
-*** 'config_section' (pointer, hdata: "config_section")
-*** 'config_option' (pointer, hdata: "config_option")
-*** 'hook' (pointer)
-*** 'buffer' (pointer, hdata: "buffer")
-*** 'bar_item' (pointer, hdata: "bar_item")
-*** 'upgrade_file' (pointer)
-*** 'prev_callback' (pointer, hdata: "ruby_callback")
-*** 'next_callback' (pointer, hdata: "ruby_callback")
 * [[hdata_ruby_script]]<<hdata_ruby_script,'ruby_script'>>: elenco degli script
 ** plugin: ruby
 ** variables:
@@ -392,7 +297,6 @@
 *** 'description' (string)
 *** 'shutdown_func' (string)
 *** 'charset' (string)
-*** 'callbacks' (pointer, hdata: "ruby_callback")
 *** 'unloading' (integer)
 *** 'prev_script' (pointer, hdata: "ruby_script")
 *** 'next_script' (pointer, hdata: "ruby_script")
@@ -428,21 +332,6 @@
 ** lists:
 *** 'last_script_repo'
 *** 'scripts_repo'
-* [[hdata_tcl_callback]]<<hdata_tcl_callback,'tcl_callback'>>: callback di uno script
-** plugin: tcl
-** variables:
-*** 'script' (pointer, hdata: "tcl_script")
-*** 'function' (string)
-*** 'data' (string)
-*** 'config_file' (pointer, hdata: "config_file")
-*** 'config_section' (pointer, hdata: "config_section")
-*** 'config_option' (pointer, hdata: "config_option")
-*** 'hook' (pointer)
-*** 'buffer' (pointer, hdata: "buffer")
-*** 'bar_item' (pointer, hdata: "bar_item")
-*** 'upgrade_file' (pointer)
-*** 'prev_callback' (pointer, hdata: "tcl_callback")
-*** 'next_callback' (pointer, hdata: "tcl_callback")
 * [[hdata_tcl_script]]<<hdata_tcl_script,'tcl_script'>>: elenco degli script
 ** plugin: tcl
 ** variables:
@@ -455,7 +344,6 @@
 *** 'description' (string)
 *** 'shutdown_func' (string)
 *** 'charset' (string)
-*** 'callbacks' (pointer, hdata: "tcl_callback")
 *** 'unloading' (integer)
 *** 'prev_script' (pointer, hdata: "tcl_script")
 *** 'next_script' (pointer, hdata: "tcl_script")
@@ -487,6 +375,7 @@
 *** 'plugin' (pointer, hdata: "plugin")
 *** 'name' (string)
 *** 'build_callback' (pointer)
+*** 'build_callback_pointer' (pointer)
 *** 'build_callback_data' (pointer)
 *** 'prev_item' (pointer, hdata: "bar_item")
 *** 'next_item' (pointer, hdata: "bar_item")
@@ -540,6 +429,7 @@
 *** 'clear' (integer)
 *** 'filter' (integer)
 *** 'close_callback' (pointer)
+*** 'close_callback_pointer' (pointer)
 *** 'close_callback_data' (pointer)
 *** 'closing' (integer)
 *** 'title' (string)
@@ -558,9 +448,11 @@
 *** 'nicklist_nicks_count' (integer)
 *** 'nicklist_visible_count' (integer)
 *** 'nickcmp_callback' (pointer)
+*** 'nickcmp_callback_pointer' (pointer)
 *** 'nickcmp_callback_data' (pointer)
 *** 'input' (integer)
 *** 'input_callback' (pointer)
+*** 'input_callback_pointer' (pointer)
 *** 'input_callback_data' (pointer)
 *** 'input_get_unknown_commands' (integer)
 *** 'input_buffer' (string)
@@ -644,6 +536,7 @@
 *** 'filename' (string)
 *** 'file' (pointer)
 *** 'callback_reload' (pointer)
+*** 'callback_reload_pointer' (pointer)
 *** 'callback_reload_data' (pointer)
 *** 'sections' (pointer, hdata: "config_section")
 *** 'last_section' (pointer, hdata: "config_section")
@@ -668,10 +561,13 @@
 *** 'value' (pointer)
 *** 'null_value_allowed' (integer)
 *** 'callback_check_value' (pointer)
+*** 'callback_check_value_pointer' (pointer)
 *** 'callback_check_value_data' (pointer)
 *** 'callback_change' (pointer)
+*** 'callback_change_pointer' (pointer)
 *** 'callback_change_data' (pointer)
 *** 'callback_delete' (pointer)
+*** 'callback_delete_pointer' (pointer)
 *** 'callback_delete_data' (pointer)
 *** 'loaded' (integer)
 *** 'prev_option' (pointer, hdata: "config_option")
@@ -684,14 +580,19 @@
 *** 'user_can_add_options' (integer)
 *** 'user_can_delete_options' (integer)
 *** 'callback_read' (pointer)
+*** 'callback_read_pointer' (pointer)
 *** 'callback_read_data' (pointer)
 *** 'callback_write' (pointer)
+*** 'callback_write_pointer' (pointer)
 *** 'callback_write_data' (pointer)
 *** 'callback_write_default' (pointer)
+*** 'callback_write_default_pointer' (pointer)
 *** 'callback_write_default_data' (pointer)
 *** 'callback_create_option' (pointer)
+*** 'callback_create_option_pointer' (pointer)
 *** 'callback_create_option_data' (pointer)
 *** 'callback_delete_option' (pointer)
+*** 'callback_delete_option_pointer' (pointer)
 *** 'callback_delete_option_data' (pointer)
 *** 'options' (pointer, hdata: "config_option")
 *** 'last_option' (pointer, hdata: "config_option")