diff options
Diffstat (limited to 'server/mm_sound_plugin.c')
| -rw-r--r-- | server/mm_sound_plugin.c | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/server/mm_sound_plugin.c b/server/mm_sound_plugin.c new file mode 100644 index 0000000..3c0f55d --- /dev/null +++ b/server/mm_sound_plugin.c @@ -0,0 +1,287 @@ +/* + * libmm-sound + * + * Copyright (c) 2000 - 2011 Samsung Electronics Co., Ltd. All rights reserved. + * + * Contact: Seungbae Shin <seungbae.shin@samsung.com> + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +#include <stdlib.h> +#include <string.h> + +#include <sys/types.h> +#include <sys/stat.h> +#include <unistd.h> +#include <dirent.h> +#include <dlfcn.h> + +#include "include/mm_sound_plugin.h" +#include <mm_error.h> +#include <mm_debug.h> + +static char* __strcatdup(const char *str1, const char *str2); +static int _MMSoundPluginGetList(const char *plugdir ,char ***list); +static int _MMSoundPluginDestroyList(char **list); + +char* MMSoundPluginGetTypeName(int type) +{ + static char *typename[] = { + "ERROR", + "SOUND", + "RUN", + }; + + if (type < MM_SOUND_PLUGIN_TYPE_LAST && type > -1) + return typename[type]; + else + return "Unknown"; /* error condition */ +} + +int MMSoundPluginScan(const char *plugindir, const int type, MMSoundPluginType **pluginlist) +{ + char **list = NULL; + int err = MM_ERROR_NONE; + char *item = NULL; + int index = 0; + MMSoundPluginType plugin[100]; + int plugin_index = 0; + + debug_enter("\n"); + + debug_msg(" Plugin dir :: %s \n", plugindir); + err = _MMSoundPluginGetList(plugindir, &list); + if (err != MM_ERROR_NONE) + return err; + + while((item = list[index++]) != NULL) + { + if(MMSoundPluginOpen(item, &plugin[plugin_index]) != MM_ERROR_NONE) + { + debug_warning("%s is not sound plugin\n", item); + continue; + } + if (plugin[plugin_index].type != type) + MMSoundPluginClose(&plugin[plugin_index]); + else + plugin_index++; + } + + _MMSoundPluginDestroyList(list); + + *pluginlist = (MMSoundPluginType*) malloc(sizeof(MMSoundPluginType) * (plugin_index+1)); + if ((*pluginlist) == NULL) + { + debug_critical("Memory allocation fail\n"); + /* Occur segmentation fault */ + *pluginlist = (void*)1; + } + + memcpy(*pluginlist, plugin, sizeof(MMSoundPluginType) * (plugin_index+1)); + /* Marking end of array */ + (*pluginlist)[plugin_index].type = MM_SOUND_PLUGIN_TYPE_NONE; + (*pluginlist)[plugin_index].module = NULL; + + debug_leave("\n"); + + return MM_ERROR_NONE; +} + +int MMSoundPluginRelease(MMSoundPluginType *pluginlist) +{ + int loop = 0; + + debug_enter("\n"); + + while (pluginlist[loop].type != MM_SOUND_PLUGIN_TYPE_NONE) + { + MMSoundPluginClose(&pluginlist[loop++]); + } + + free (pluginlist); + + debug_leave("\n"); + + return MM_ERROR_NONE; +} + +int MMSoundPluginOpen(char *file, MMSoundPluginType *plugin) +{ + void *pdll = NULL; + int (*func)(void) = NULL; + int t = -1; + + debug_enter("\n"); + + pdll = dlopen(file, RTLD_NOW|RTLD_GLOBAL); + + if (pdll == NULL) { + debug_error("%s\n", dlerror()); + return MM_ERROR_SOUND_INVALID_FILE; + } + + func = (int (*)(void))dlsym(pdll, "MMSoundGetPluginType"); + if (func == NULL) { + dlclose(pdll); + debug_error("Cannot find symbol : MMSoundGetPluginType\n"); + return MM_ERROR_SOUND_INVALID_FILE; + } + t = func(); + + debug_msg("%s is %s\n", file, + t == MM_SOUND_PLUGIN_TYPE_CODEC ? "CODEC": + t == MM_SOUND_PLUGIN_TYPE_RUN ? "RUN" : "Unknown"); + switch(t) + { + case MM_SOUND_PLUGIN_TYPE_CODEC: + case MM_SOUND_PLUGIN_TYPE_RUN: + plugin->type = t; + plugin->module = pdll; + break; + default: + debug_error("Type is %d\n",t); + dlclose(pdll); + return MM_ERROR_SOUND_INVALID_FILE; + } + + debug_leave("\n"); + + return MM_ERROR_NONE; +} + +int MMSoundPluginClose(MMSoundPluginType *plugin) +{ + debug_enter("\n"); + + if(plugin->module) + dlclose(plugin->module); + plugin->type = MM_SOUND_PLUGIN_TYPE_NONE; + plugin->module = NULL; + + debug_leave("\n"); + return MM_ERROR_NONE; +} + +int MMSoundPluginGetSymbol(MMSoundPluginType *plugin, const char *symbol, void **func) +{ + void *fn = NULL; + + debug_enter("\n"); + + if (plugin->module == NULL) + return MM_ERROR_SOUND_INVALID_FILE; + fn = dlsym(plugin->module, symbol); + if (fn == NULL) + return MM_ERROR_SOUND_INVALID_FILE; + *func = fn; + + debug_leave("\n"); + + return MM_ERROR_NONE; +} +#define MAX_PATH_SIZE 256 +static int _MMSoundPluginGetList(const char *plugdir ,char ***list) +{ + struct dirent **entry = NULL; + int items; + struct stat finfo; + char **temp; + int tn = 0; + static char curdir[MAX_PATH_SIZE]; + int item_idx; + int ret = MM_ERROR_NONE; + + items = scandir(plugdir, &entry, NULL, alphasort); + debug_msg("Items %d\n", items); + + if (items == -1) + return MM_ERROR_INVALID_ARGUMENT; + + temp = (char **)malloc(sizeof(char *) * (items + 1)); + if(!temp) + { + ret = MM_ERROR_OUT_OF_MEMORY; + goto free_entry; + } + memset(temp, 0, sizeof(char*) * (items + 1)); + memset(curdir, '\0', sizeof(curdir)); + if(NULL == getcwd(curdir, sizeof(curdir)-1)) + { + if (temp) + { + free (temp); + temp = NULL; + } + ret = MM_ERROR_OUT_OF_STORAGE; + goto free_entry; + } + chdir(plugdir); + + for(item_idx = items; item_idx--; ) + { + if(stat(entry[item_idx]->d_name, &finfo) < 0) + { + debug_error("Stat error\n"); + if (temp) + { + free(temp); + temp = NULL; + } + ret = MM_ERROR_INVALID_ARGUMENT; + goto free_entry; + } + + debug_msg("item %d is %s\n", item_idx, entry[item_idx]->d_name); + + if (S_ISREG(finfo.st_mode)) + { + temp[tn++] = __strcatdup(plugdir, entry[item_idx]->d_name); + } + } + *list = temp; +free_entry: + for(item_idx = 0; item_idx < items; item_idx++) + { + free(entry[item_idx]); + } + free(entry); + return ret; +} + +static int _MMSoundPluginDestroyList(char **list) +{ + int tn = 0; + while(list[tn]) + { + free(list[tn++]); + } + free (list); + return MM_ERROR_NONE; +} + +static char* __strcatdup(const char *str1, const char *str2) +{ + char *dest = NULL; + char *source = NULL; + int len = 0; + len = strlen(str1) + strlen(str2) + 1; + dest = (char*) malloc(len*sizeof(char)); + if (!dest) + return NULL; + strncpy(dest, str1, len-1); + strncat(dest, str2, len-1); + return dest; +} + |