diff options
Diffstat (limited to 'libxcb/src')
| -rw-r--r-- | libxcb/src/c_client.py | 3 | ||||
| -rw-r--r-- | libxcb/src/xcb.h | 4 | ||||
| -rw-r--r-- | libxcb/src/xcb_conn.c | 9 | ||||
| -rw-r--r-- | libxcb/src/xcb_ext.c | 262 | ||||
| -rw-r--r-- | libxcb/src/xcb_in.c | 4 | ||||
| -rw-r--r-- | libxcb/src/xcb_list.c | 206 | ||||
| -rw-r--r-- | libxcb/src/xcb_out.c | 4 | ||||
| -rw-r--r-- | libxcb/src/xcb_util.c | 15 | ||||
| -rw-r--r-- | libxcb/src/xcb_xid.c | 202 |
9 files changed, 379 insertions, 330 deletions
diff --git a/libxcb/src/c_client.py b/libxcb/src/c_client.py index 9b93a9067..f4df6a425 100644 --- a/libxcb/src/c_client.py +++ b/libxcb/src/c_client.py @@ -176,6 +176,9 @@ def c_open(self): _h('') _h('#include "xcb.h"') + _c('#ifdef HAVE_CONFIG_H') + _c('#include "config.h"') + _c('#endif') _c('#include <stdlib.h>') _c('#include <string.h>') _c('#include <assert.h>') diff --git a/libxcb/src/xcb.h b/libxcb/src/xcb.h index 1372f4653..4722a270c 100644 --- a/libxcb/src/xcb.h +++ b/libxcb/src/xcb.h @@ -85,6 +85,9 @@ extern "C" { /** Connection closed, error during parsing display string. */ #define XCB_CONN_CLOSED_PARSE_ERR 5 +/** Connection closed because the server does not have a screen matching the display. */ +#define XCB_CONN_CLOSED_INVALID_SCREEN 6 + #define XCB_TYPE_PAD(T,I) (-(I) & (sizeof(T) > 4 ? 3 : sizeof(T) - 1)) /* Opaque structures */ @@ -424,6 +427,7 @@ int xcb_get_file_descriptor(xcb_connection_t *c); * @return XCB_CONN_CLOSED_MEM_INSUFFICIENT, when memory not available. * @return XCB_CONN_CLOSED_REQ_LEN_EXCEED, exceeding request length that server accepts. * @return XCB_CONN_CLOSED_PARSE_ERR, error during parsing display string. + * @return XCB_CONN_CLOSED_INVALID_SCREEN, because the server does not have a screen matching the display. */ int xcb_connection_has_error(xcb_connection_t *c); diff --git a/libxcb/src/xcb_conn.c b/libxcb/src/xcb_conn.c index ed6f06bdd..45ada1fb7 100644 --- a/libxcb/src/xcb_conn.c +++ b/libxcb/src/xcb_conn.c @@ -25,6 +25,10 @@ /* Connection management: the core of XCB. */ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + #include <assert.h> #include <string.h> #include <stdio.h> @@ -68,6 +72,7 @@ typedef struct { static const int xcb_con_error = XCB_CONN_ERROR; static const int xcb_con_closed_mem_er = XCB_CONN_CLOSED_MEM_INSUFFICIENT; static const int xcb_con_closed_parse_er = XCB_CONN_CLOSED_PARSE_ERR; +static const int xcb_con_closed_screen_er = XCB_CONN_CLOSED_INVALID_SCREEN; static int set_fd_flags(const int fd) { @@ -366,6 +371,10 @@ xcb_connection_t *_xcb_conn_ret_error(int err) { return (xcb_connection_t *) &xcb_con_closed_parse_er; } + case XCB_CONN_CLOSED_INVALID_SCREEN: + { + return (xcb_connection_t *) &xcb_con_closed_screen_er; + } case XCB_CONN_ERROR: default: { 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 <stdlib.h>
-#include <string.h>
-
-#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 <stdlib.h> +#include <string.h> + +#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); +} diff --git a/libxcb/src/xcb_in.c b/libxcb/src/xcb_in.c index d7db8235e..da2b7077a 100644 --- a/libxcb/src/xcb_in.c +++ b/libxcb/src/xcb_in.c @@ -25,6 +25,10 @@ /* Stuff that reads stuff from the server. */ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + #include <assert.h> #include <string.h> #include <stdlib.h> diff --git a/libxcb/src/xcb_list.c b/libxcb/src/xcb_list.c index fc00588b4..6f5c61190 100644 --- a/libxcb/src/xcb_list.c +++ b/libxcb/src/xcb_list.c @@ -1,101 +1,105 @@ -/* 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 generic implementation of a list of void-pointers. */
-
-#include <stdlib.h>
-
-#include "xcb.h"
-#include "xcbint.h"
-
-typedef struct node {
- struct node *next;
- unsigned int key;
- void *data;
-} node;
-
-struct _xcb_map {
- node *head;
- node **tail;
-};
-
-/* Private interface */
-
-_xcb_map *_xcb_map_new()
-{
- _xcb_map *list;
- list = malloc(sizeof(_xcb_map));
- if(!list)
- return 0;
- list->head = 0;
- list->tail = &list->head;
- return list;
-}
-
-void _xcb_map_delete(_xcb_map *list, xcb_list_free_func_t do_free)
-{
- if(!list)
- return;
- while(list->head)
- {
- node *cur = list->head;
- if(do_free)
- do_free(cur->data);
- list->head = cur->next;
- free(cur);
- }
- free(list);
-}
-
-int _xcb_map_put(_xcb_map *list, unsigned int key, void *data)
-{
- node *cur = malloc(sizeof(node));
- if(!cur)
- return 0;
- cur->key = key;
- cur->data = data;
- cur->next = 0;
- *list->tail = cur;
- list->tail = &cur->next;
- return 1;
-}
-
-void *_xcb_map_remove(_xcb_map *list, unsigned int key)
-{
- node **cur;
- for(cur = &list->head; *cur; cur = &(*cur)->next)
- if((*cur)->key == key)
- {
- node *tmp = *cur;
- void *ret = (*cur)->data;
- *cur = (*cur)->next;
- if(!*cur)
- list->tail = cur;
-
- free(tmp);
- return ret;
- }
- return 0;
-}
+/* 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 generic implementation of a list of void-pointers. */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <stdlib.h> + +#include "xcb.h" +#include "xcbint.h" + +typedef struct node { + struct node *next; + unsigned int key; + void *data; +} node; + +struct _xcb_map { + node *head; + node **tail; +}; + +/* Private interface */ + +_xcb_map *_xcb_map_new() +{ + _xcb_map *list; + list = malloc(sizeof(_xcb_map)); + if(!list) + return 0; + list->head = 0; + list->tail = &list->head; + return list; +} + +void _xcb_map_delete(_xcb_map *list, xcb_list_free_func_t do_free) +{ + if(!list) + return; + while(list->head) + { + node *cur = list->head; + if(do_free) + do_free(cur->data); + list->head = cur->next; + free(cur); + } + free(list); +} + +int _xcb_map_put(_xcb_map *list, unsigned int key, void *data) +{ + node *cur = malloc(sizeof(node)); + if(!cur) + return 0; + cur->key = key; + cur->data = data; + cur->next = 0; + *list->tail = cur; + list->tail = &cur->next; + return 1; +} + +void *_xcb_map_remove(_xcb_map *list, unsigned int key) +{ + node **cur; + for(cur = &list->head; *cur; cur = &(*cur)->next) + if((*cur)->key == key) + { + node *tmp = *cur; + void *ret = (*cur)->data; + *cur = (*cur)->next; + if(!*cur) + list->tail = cur; + + free(tmp); + return ret; + } + return 0; +} diff --git a/libxcb/src/xcb_out.c b/libxcb/src/xcb_out.c index c082c98ab..996fedb23 100644 --- a/libxcb/src/xcb_out.c +++ b/libxcb/src/xcb_out.c @@ -25,6 +25,10 @@ /* Stuff that sends stuff to the server. */ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + #include <assert.h> #include <stdlib.h> #include <unistd.h> diff --git a/libxcb/src/xcb_util.c b/libxcb/src/xcb_util.c index 065fe1407..5cee9ca2d 100644 --- a/libxcb/src/xcb_util.c +++ b/libxcb/src/xcb_util.c @@ -25,6 +25,10 @@ /* Utility functions implementable using only public APIs. */ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + #include <assert.h> #include <sys/types.h> #include <limits.h> @@ -51,7 +55,6 @@ #include "xcbext.h" #include "xcbint.h" -/* must be after "xcbint.h" to get autoconf #defines */ #if defined(HAVE_TSOL_LABEL_H) && defined(HAVE_IS_SYSTEM_LABELED) # include <tsol/label.h> # include <sys/stat.h> @@ -493,6 +496,16 @@ xcb_connection_t *xcb_connect_to_display_with_auth_info(const char *displayname, else c = xcb_connect_to_fd(fd, 0); + if(c->has_error) + goto out; + + /* Make sure requested screen number is in bounds for this server */ + if((screenp != NULL) && (*screenp >= (int) c->setup->roots_len)) { + xcb_disconnect(c); + c = _xcb_conn_ret_error(XCB_CONN_CLOSED_INVALID_SCREEN); + goto out; + } + out: free(host); free(protocol); diff --git a/libxcb/src/xcb_xid.c b/libxcb/src/xcb_xid.c index e32306157..7d9fc621b 100644 --- a/libxcb/src/xcb_xid.c +++ b/libxcb/src/xcb_xid.c @@ -1,99 +1,103 @@ -/* Copyright (C) 2001-2008 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.
- */
-
-/* XID allocators. */
-
-#include <assert.h>
-#include <stdlib.h>
-#include "xcb.h"
-#include "xcbext.h"
-#include "xcbint.h"
-#include "xc_misc.h"
-
-/* Public interface */
-
-uint32_t xcb_generate_id(xcb_connection_t *c)
-{
- uint32_t ret;
- if(c->has_error)
- return -1;
- pthread_mutex_lock(&c->xid.lock);
- if(c->xid.last >= c->xid.max - c->xid.inc + 1)
- {
- xcb_xc_misc_get_xid_range_reply_t *range;
- assert(c->xid.last == c->xid.max);
- if (c->xid.last == 0) {
- /* finish setting up initial range */
- c->xid.max = c->setup->resource_id_mask;
- } else {
- /* check for extension */
- const xcb_query_extension_reply_t *xc_misc_reply =
- xcb_get_extension_data(c, &xcb_xc_misc_id);
- if (!xc_misc_reply) {
- pthread_mutex_unlock(&c->xid.lock);
- return -1;
- }
- /* get new range */
- range = xcb_xc_misc_get_xid_range_reply(c,
- xcb_xc_misc_get_xid_range(c), 0);
- /* XXX The latter disjunct is what the server returns
- when it is out of XIDs. Sweet. */
- if(!range || (range->start_id == 0 && range->count == 1))
- {
- pthread_mutex_unlock(&c->xid.lock);
- return -1;
- }
- assert(range->count > 0 && range->start_id > 0);
- c->xid.last = range->start_id;
- c->xid.max = range->start_id + (range->count - 1) * c->xid.inc;
- free(range);
- }
- } else {
- c->xid.last += c->xid.inc;
- }
- ret = c->xid.last | c->xid.base;
- pthread_mutex_unlock(&c->xid.lock);
- return ret;
-}
-
-/* Private interface */
-
-int _xcb_xid_init(xcb_connection_t *c)
-{
- if(pthread_mutex_init(&c->xid.lock, 0))
- return 0;
- c->xid.last = 0;
- c->xid.max = 0;
- c->xid.base = c->setup->resource_id_base;
- c->xid.inc = c->setup->resource_id_mask & -(c->setup->resource_id_mask);
- return 1;
-}
-
-void _xcb_xid_destroy(xcb_connection_t *c)
-{
- if (!c->xid.lock)
- return; /* mutex was not initialised yet */
- pthread_mutex_destroy(&c->xid.lock);
-}
+/* Copyright (C) 2001-2008 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. + */ + +/* XID allocators. */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <assert.h> +#include <stdlib.h> +#include "xcb.h" +#include "xcbext.h" +#include "xcbint.h" +#include "xc_misc.h" + +/* Public interface */ + +uint32_t xcb_generate_id(xcb_connection_t *c) +{ + uint32_t ret; + if(c->has_error) + return -1; + pthread_mutex_lock(&c->xid.lock); + if(c->xid.last >= c->xid.max - c->xid.inc + 1) + { + xcb_xc_misc_get_xid_range_reply_t *range; + assert(c->xid.last == c->xid.max); + if (c->xid.last == 0) { + /* finish setting up initial range */ + c->xid.max = c->setup->resource_id_mask; + } else { + /* check for extension */ + const xcb_query_extension_reply_t *xc_misc_reply = + xcb_get_extension_data(c, &xcb_xc_misc_id); + if (!xc_misc_reply) { + pthread_mutex_unlock(&c->xid.lock); + return -1; + } + /* get new range */ + range = xcb_xc_misc_get_xid_range_reply(c, + xcb_xc_misc_get_xid_range(c), 0); + /* XXX The latter disjunct is what the server returns + when it is out of XIDs. Sweet. */ + if(!range || (range->start_id == 0 && range->count == 1)) + { + pthread_mutex_unlock(&c->xid.lock); + return -1; + } + assert(range->count > 0 && range->start_id > 0); + c->xid.last = range->start_id; + c->xid.max = range->start_id + (range->count - 1) * c->xid.inc; + free(range); + } + } else { + c->xid.last += c->xid.inc; + } + ret = c->xid.last | c->xid.base; + pthread_mutex_unlock(&c->xid.lock); + return ret; +} + +/* Private interface */ + +int _xcb_xid_init(xcb_connection_t *c) +{ + if(pthread_mutex_init(&c->xid.lock, 0)) + return 0; + c->xid.last = 0; + c->xid.max = 0; + c->xid.base = c->setup->resource_id_base; + c->xid.inc = c->setup->resource_id_mask & -(c->setup->resource_id_mask); + return 1; +} + +void _xcb_xid_destroy(xcb_connection_t *c) +{ + if (!c->xid.lock) + return; /* mutex was not initialised yet */ + pthread_mutex_destroy(&c->xid.lock); +} |