From d7fc06ac528d54e0e1416cb8aa89b6fd072400a5 Mon Sep 17 00:00:00 2001 From: marha Date: Fri, 31 Aug 2012 15:18:29 +0200 Subject: randrproto xwininfo fontconfig libxcb mesa xkeyboard-config pixman xserver git update 31 Aug 2012 --- libxcb/src/xcb_ext.c | 262 ++++++++++++++++++++++++++------------------------- 1 file changed, 133 insertions(+), 129 deletions(-) (limited to 'libxcb/src/xcb_ext.c') diff --git a/libxcb/src/xcb_ext.c b/libxcb/src/xcb_ext.c index be7862f41..990c67a96 100644 --- a/libxcb/src/xcb_ext.c +++ b/libxcb/src/xcb_ext.c @@ -1,129 +1,133 @@ -/* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - * Except as contained in this notice, the names of the authors or their - * institutions shall not be used in advertising or otherwise to promote the - * sale, use or other dealings in this Software without prior written - * authorization from the authors. - */ - -/* A cache for QueryExtension results. */ - -#include -#include - -#include "xcb.h" -#include "xcbext.h" -#include "xcbint.h" - -typedef struct lazyreply { - enum lazy_reply_tag tag; - union { - xcb_query_extension_cookie_t cookie; - xcb_query_extension_reply_t *reply; - } value; -} lazyreply; - -static lazyreply *get_index(xcb_connection_t *c, int idx) -{ - if(idx > c->ext.extensions_size) - { - int new_size = idx << 1; - lazyreply *new_extensions = realloc(c->ext.extensions, sizeof(lazyreply) * new_size); - if(!new_extensions) - return 0; - memset(new_extensions + c->ext.extensions_size, 0, sizeof(lazyreply) * (new_size - c->ext.extensions_size)); - c->ext.extensions = new_extensions; - c->ext.extensions_size = new_size; - } - return c->ext.extensions + idx - 1; -} - -static lazyreply *get_lazyreply(xcb_connection_t *c, xcb_extension_t *ext) -{ - static pthread_mutex_t global_lock = PTHREAD_MUTEX_INITIALIZER; - static int next_global_id; - - lazyreply *data; - - pthread_mutex_lock(&global_lock); - if(!ext->global_id) - ext->global_id = ++next_global_id; - pthread_mutex_unlock(&global_lock); - - data = get_index(c, ext->global_id); - if(data && data->tag == LAZY_NONE) - { - /* cache miss: query the server */ - data->tag = LAZY_COOKIE; - data->value.cookie = xcb_query_extension(c, strlen(ext->name), ext->name); - } - return data; -} - -/* Public interface */ - -/* Do not free the returned xcb_query_extension_reply_t - on return, it's aliased - * from the cache. */ -const xcb_query_extension_reply_t *xcb_get_extension_data(xcb_connection_t *c, xcb_extension_t *ext) -{ - lazyreply *data; - if(c->has_error) - return 0; - - pthread_mutex_lock(&c->ext.lock); - data = get_lazyreply(c, ext); - if(data && data->tag == LAZY_COOKIE) - { - data->tag = LAZY_FORCED; - data->value.reply = xcb_query_extension_reply(c, data->value.cookie, 0); - } - pthread_mutex_unlock(&c->ext.lock); - - return data ? data->value.reply : 0; -} - -void xcb_prefetch_extension_data(xcb_connection_t *c, xcb_extension_t *ext) -{ - if(c->has_error) - return; - pthread_mutex_lock(&c->ext.lock); - get_lazyreply(c, ext); - pthread_mutex_unlock(&c->ext.lock); -} - -/* Private interface */ - -int _xcb_ext_init(xcb_connection_t *c) -{ - if(pthread_mutex_init(&c->ext.lock, 0)) - return 0; - return 1; -} - -void _xcb_ext_destroy(xcb_connection_t *c) -{ - if (!c->ext.lock) - return; /* mutex is not initialised */ - pthread_mutex_destroy(&c->ext.lock); - while(c->ext.extensions_size-- > 0) - if(c->ext.extensions[c->ext.extensions_size].tag == LAZY_FORCED) - free(c->ext.extensions[c->ext.extensions_size].value.reply); - free(c->ext.extensions); -} +/* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Except as contained in this notice, the names of the authors or their + * institutions shall not be used in advertising or otherwise to promote the + * sale, use or other dealings in this Software without prior written + * authorization from the authors. + */ + +/* A cache for QueryExtension results. */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include + +#include "xcb.h" +#include "xcbext.h" +#include "xcbint.h" + +typedef struct lazyreply { + enum lazy_reply_tag tag; + union { + xcb_query_extension_cookie_t cookie; + xcb_query_extension_reply_t *reply; + } value; +} lazyreply; + +static lazyreply *get_index(xcb_connection_t *c, int idx) +{ + if(idx > c->ext.extensions_size) + { + int new_size = idx << 1; + lazyreply *new_extensions = realloc(c->ext.extensions, sizeof(lazyreply) * new_size); + if(!new_extensions) + return 0; + memset(new_extensions + c->ext.extensions_size, 0, sizeof(lazyreply) * (new_size - c->ext.extensions_size)); + c->ext.extensions = new_extensions; + c->ext.extensions_size = new_size; + } + return c->ext.extensions + idx - 1; +} + +static lazyreply *get_lazyreply(xcb_connection_t *c, xcb_extension_t *ext) +{ + static pthread_mutex_t global_lock = PTHREAD_MUTEX_INITIALIZER; + static int next_global_id; + + lazyreply *data; + + pthread_mutex_lock(&global_lock); + if(!ext->global_id) + ext->global_id = ++next_global_id; + pthread_mutex_unlock(&global_lock); + + data = get_index(c, ext->global_id); + if(data && data->tag == LAZY_NONE) + { + /* cache miss: query the server */ + data->tag = LAZY_COOKIE; + data->value.cookie = xcb_query_extension(c, strlen(ext->name), ext->name); + } + return data; +} + +/* Public interface */ + +/* Do not free the returned xcb_query_extension_reply_t - on return, it's aliased + * from the cache. */ +const xcb_query_extension_reply_t *xcb_get_extension_data(xcb_connection_t *c, xcb_extension_t *ext) +{ + lazyreply *data; + if(c->has_error) + return 0; + + pthread_mutex_lock(&c->ext.lock); + data = get_lazyreply(c, ext); + if(data && data->tag == LAZY_COOKIE) + { + data->tag = LAZY_FORCED; + data->value.reply = xcb_query_extension_reply(c, data->value.cookie, 0); + } + pthread_mutex_unlock(&c->ext.lock); + + return data ? data->value.reply : 0; +} + +void xcb_prefetch_extension_data(xcb_connection_t *c, xcb_extension_t *ext) +{ + if(c->has_error) + return; + pthread_mutex_lock(&c->ext.lock); + get_lazyreply(c, ext); + pthread_mutex_unlock(&c->ext.lock); +} + +/* Private interface */ + +int _xcb_ext_init(xcb_connection_t *c) +{ + if(pthread_mutex_init(&c->ext.lock, 0)) + return 0; + return 1; +} + +void _xcb_ext_destroy(xcb_connection_t *c) +{ + if (!c->ext.lock) + return; /* mutex is not initialised */ + pthread_mutex_destroy(&c->ext.lock); + while(c->ext.extensions_size-- > 0) + if(c->ext.extensions[c->ext.extensions_size].tag == LAZY_FORCED) + free(c->ext.extensions[c->ext.extensions_size].value.reply); + free(c->ext.extensions); +} -- cgit v1.2.3