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Copyright (c) 2003-2008 uim Project http://code.google.com/p/uim/
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of authors nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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#include <sys/types.h>
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#include "uim-scm-abbrev.h"
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#include "uim-internal.h"
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#include "uim-notify.h"
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#define NOTIFY_PLUGIN_PATH LIBDIR "/uim/notify"
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#define NOTIFY_PLUGIN_PREFIX "libuimnotify-"
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#define NOTIFY_PLUGIN_SUFFIX ".so"
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typedef void (*my_dlfunc_t)(void);
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#define dlfunc(handle, symbol) \
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((my_dlfunc_t)(uintptr_t)dlsym((handle), (symbol)))
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typedef dlfunc_t my_dlfunc_t;
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struct uim_notify_agent {
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const uim_notify_desc *(*desc)(void);
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int (*notify_info)(const char *);
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int (*notify_fatal)(const char *);
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static my_dlfunc_t load_func(const char *path, const char *name);
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/* FIXME: Move these decls to the 'stderr' agent section and make
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* invisible from other part of uim-notify. -- YamaKen 2008-01-30 */
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static void uim_notify_load_stderr(void);
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static const uim_notify_desc *uim_notify_stderr_get_desc(void);
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static struct uim_notify_agent agent_body;
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static struct uim_notify_agent *agent = &agent_body;
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static void *notify_dlhandle = NULL;
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load_func(const char *path, const char *name)
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f = (my_dlfunc_t)dlfunc(notify_dlhandle, name);
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fprintf(stderr, "uim-notify: cannot found '%s()' in %s\n", name, path);
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dlclose(notify_dlhandle);
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uim_notify_load_stderr();
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uim_notify_load(const char *name)
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if (!agent->quit || !agent->desc) {
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fprintf(stderr, "uim-notify: notification agent module is not loaded\n");
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uim_notify_load_stderr();
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if (strcmp(agent->desc()->name, name) == 0) {
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} else if (strcmp(name, "stderr") == 0) {
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dlclose(notify_dlhandle);
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uim_notify_load_stderr();
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dlclose(notify_dlhandle);
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snprintf(path, sizeof(path), "%s/%s%s%s", NOTIFY_PLUGIN_PATH,
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NOTIFY_PLUGIN_PREFIX, name, NOTIFY_PLUGIN_SUFFIX);
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notify_dlhandle = dlopen(path, RTLD_NOW);
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if ((str = dlerror())) {
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fprintf(stderr, "uim-notify: load failed %s(%s)\n", path, str);
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uim_notify_load_stderr();
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agent->desc = (const uim_notify_desc *(*)(void))load_func(path, "uim_notify_plugin_get_desc");
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agent->init = (int (*)(void))load_func(path, "uim_notify_plugin_init");
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agent->quit = (void (*)(void))load_func(path, "uim_notify_plugin_quit");
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agent->notify_info = (int (*)(const char *))load_func(path, "uim_notify_plugin_info");
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if (!agent->notify_info)
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agent->notify_fatal = (int (*)(const char *))load_func(path, "uim_notify_plugin_fatal");
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if (!agent->notify_fatal)
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const uim_notify_desc *
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uim_notify_get_desc(void)
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return agent->desc();
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uim_notify_init(void)
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/* Since a cyclic init/quit sequence leaves *agent uncleared,
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* explicit initialization is required. Such data initialization is
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* needed for some embedded platforms such as Qtopia.
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* -- YamaKen 2008-01-30 */
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uim_notify_load_stderr();
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return agent->init();
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uim_notify_quit(void)
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uim_notify_info(const char *msg_fmt, ...)
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va_start(ap, msg_fmt);
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vsnprintf(msg, sizeof(msg), msg_fmt, ap);
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return agent->notify_info(msg);
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uim_notify_fatal(const char *msg_fmt, ...)
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va_start(ap, msg_fmt);
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vsnprintf(msg, sizeof(msg), msg_fmt, ap);
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return agent->notify_fatal(msg);
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/* Low stack-consumption version of uim_notify_fatal(). */
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uim_notify_fatal_raw(const char *msg)
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return agent->notify_fatal(msg);
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notify_get_plugins(void)
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const uim_notify_desc *desc;
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uim_notify_desc *(*desc_func)(void);
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plen = sizeof(NOTIFY_PLUGIN_PREFIX);
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slen = sizeof(NOTIFY_PLUGIN_SUFFIX);
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desc = uim_notify_stderr_get_desc();
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ret_ = CONS(LIST3(MAKE_SYM(desc->name),
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MAKE_STR(desc->name),
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MAKE_STR(desc->desc)),
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dirp = opendir(NOTIFY_PLUGIN_PATH);
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while ((dp = readdir(dirp)) != NULL) {
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size_t len = strlen(dp->d_name);
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if ((len < plen + slen - 1) ||
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(PATH_MAX < (sizeof(NOTIFY_PLUGIN_PATH "/") + len)) ||
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(strcmp(dp->d_name, NOTIFY_PLUGIN_PREFIX) <= 0) ||
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(strcmp(dp->d_name + len + 1 - slen, NOTIFY_PLUGIN_SUFFIX) != 0))
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snprintf(path, sizeof(path), "%s/%s", NOTIFY_PLUGIN_PATH, dp->d_name);
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handle = dlopen(path, RTLD_NOW);
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if ((str = dlerror()) != NULL) {
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fprintf(stderr, "load failed %s(%s)\n", path, str);
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desc_func = (uim_notify_desc *(*)(void))dlfunc(handle, "uim_notify_plugin_get_desc");
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fprintf(stderr, "cannot found 'uim_notify_get_desc()' in %s\n", path);
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ret_ = CONS(LIST3(MAKE_SYM(desc->name),
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MAKE_STR(desc->name),
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MAKE_STR(desc->desc)),
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(void)closedir(dirp);
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return uim_scm_callf("reverse", "o", ret_);
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notify_load(uim_lisp name_)
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const char *name = REFER_C_STR(name_);
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return MAKE_BOOL(uim_notify_load(name));
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notify_info(uim_lisp msg_)
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const char *msg = REFER_C_STR(msg_);
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return MAKE_BOOL(uim_notify_info("%s", msg));
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notify_fatal(uim_lisp msg_)
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const char *msg = REFER_C_STR(msg_);
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return MAKE_BOOL(uim_notify_fatal("%s", msg));
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uim_init_notify_subrs(void)
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uim_scm_init_proc0("uim-notify-get-plugins", notify_get_plugins);
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uim_scm_init_proc1("uim-notify-load", notify_load);
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uim_scm_init_proc1("uim-notify-info", notify_info);
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uim_scm_init_proc1("uim-notify-fatal", notify_fatal);
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* builtin 'stderr' notification agent
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static uim_bool uim_notify_stderr_init(void);
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static void uim_notify_stderr_quit(void);
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static uim_bool uim_notify_stderr_info(const char *);
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static uim_bool uim_notify_stderr_fatal(const char *);
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static const uim_notify_desc uim_notify_stderr_desc = {
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"Standard Error output",
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uim_notify_load_stderr(void)
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agent->desc = uim_notify_stderr_get_desc;
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agent->init = uim_notify_stderr_init;
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agent->quit = uim_notify_stderr_quit;
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agent->notify_info = uim_notify_stderr_info;
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agent->notify_fatal = uim_notify_stderr_fatal;
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notify_dlhandle = NULL;
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static const uim_notify_desc *
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uim_notify_stderr_get_desc(void)
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return &uim_notify_stderr_desc;
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uim_notify_stderr_init(void)
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uim_notify_stderr_quit(void)
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uim_notify_stderr_info(const char *msg)
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fputs("libuim: [info] ", stderr);
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uim_notify_stderr_fatal(const char *msg)
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/* To reduce stack consumption on hard situations such as memory
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* exhaustion, printf()s with indirect directives are intentionally
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* avoided here. -- YamaKen 2008-02-11 */
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fputs("libuim: [fatal] ", stderr);
added
removed
uim/uim-notify.c
