diff options
Diffstat (limited to 'src/H5PL.c')
| -rw-r--r-- | src/H5PL.c | 215 |
1 files changed, 122 insertions, 93 deletions
@@ -95,7 +95,7 @@ H5PL_term_interface(void) /* Free the table of search paths */ for(i = 0; i < num_paths; i++) { if(path_table[i]) - path_table[i] = H5MM_xfree(path_table[i]); + path_table[i] = (char *)H5MM_xfree(path_table[i]); } num_paths = 0; path_found = FALSE; @@ -130,22 +130,18 @@ H5PL_load(H5PL_type_t type, int id) { char *dl_path = NULL; char *origin_dl_path = NULL; - char *pathname = NULL; size_t len = 0; char *dir = NULL; - DIR *dirp = NULL; - int i; - void *handle = NULL; + size_t i; htri_t found_in_table = FALSE; htri_t found_in_path = FALSE; - H5Z_class2_t* (*PL_get_plugin_info)(void) = NULL; H5Z_class2_t *plugin_info = NULL; void *ret_value = NULL; FUNC_ENTER_NOAPI(NULL) /* Search in the table of already loaded plugin libraries */ - if((found_in_table = H5PL_search_table(type, id, &plugin_info)) < 0) + if((found_in_table = H5PL_search_table(type, id, (void **)&plugin_info)) < 0) HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, NULL, "search in table failed") /* Finish the function if found */ @@ -185,7 +181,7 @@ H5PL_load(H5PL_type_t type, int id) /* Iterate through the path table to find the right dynamic libraries */ for(i=0; i<num_paths; i++) { - if((found_in_path = H5PL_find(type, id, path_table[i], &plugin_info)) < 0) + if((found_in_path = H5PL_find(type, id, path_table[i], (void **)&plugin_info)) < 0) HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, NULL, "search in paths failed") /* Finish the function if found */ @@ -206,10 +202,9 @@ done: /*------------------------------------------------------------------------- * Function: H5PL_find * - * Purpose: Given a path, this function opens the directory and iterates - * through all files to find the right plugin library. It - * loads the dynamic plugin library and keeps it on the list - * of loaded libraries. + * Purpose: Given a path, this function opens the directory and envokes + * another function to go through all files to find the right + * plugin library. * * Return: TRUE on success, * FALSE on not found, @@ -225,90 +220,53 @@ done: htri_t H5PL_find(H5PL_type_t plugin_type, int type_id, char *dir, void **info) { - char *dl_path = NULL; char *pathname = NULL; DIR *dirp = NULL; - int i; - void *handle = NULL; - htri_t found_in_table = FALSE; - hbool_t free_path = FALSE; - H5Z_class2_t* (*H5PL_get_plugin_info)(void) = NULL; - H5Z_class2_t *plugin_info = NULL; + struct dirent *dp = NULL; + struct stat my_stat; + htri_t found_in_dir = FALSE; htri_t ret_value = FALSE; FUNC_ENTER_NOAPI(FAIL) /* Open the directory */ - if(dirp = HDopendir(dir)) { - struct dirent *dp = NULL; - struct stat my_stat; - /* Iterates through all entries in the directory to find the right plugin library */ - while ((dp = HDreaddir(dirp)) != NULL) { - /* The library we are looking for should be called libxxx.so... */ - if(!HDstrncmp(dp->d_name, "lib", 3) && HDstrstr(dp->d_name, ".so")) { - pathname = (char *)H5MM_malloc(strlen(dir) + strlen(dp->d_name) + 2); - HDstrncpy(pathname, dir, strlen(dir)+1); - HDstrcat(pathname, "/"); - HDstrcat(pathname, dp->d_name); - - /*fprintf(stderr, "dp->d_name=%s, pathname=%s. ", dp->d_name, pathname); - fprintf(stderr, "\n");*/ - - if(HDstat(pathname, &my_stat) == -1) - HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't stat file: %s", strerror(errno)) - - if(!S_ISDIR(my_stat.st_mode)) { /* if it is a directory, skip it */ - if(NULL == (handle = dlopen(pathname, RTLD_NOW|RTLD_LAZY))) { - /*fprintf(stderr, "not open dl library: %s", dlerror());*/ - /* There are different reasons why a library can't be open, e.g. wrong architecture. - * simply continue if we can't open it */ - continue; - } - - dlerror(); /*clear error*/ - - /* Return a handle for the function H5PL_get_plugin_info in the dynamic library. - * The plugin library is suppose to define this function. */ - if(NULL == (H5PL_get_plugin_info = dlsym(handle, "H5PL_get_plugin_info"))) { - if(H5PL_close(handle) < 0) - HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") - } - - /* Envoke H5PL_get_plugin_info to verify this is the right library we are looking for. - * Move on if it isn't. */ - if(H5PL_get_plugin_info) { - if(NULL == (plugin_info = (*H5PL_get_plugin_info)())) { - if(H5PL_close(handle) < 0) - HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") - HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "can't get plugin info") - } - - if(plugin_info->id == type_id) { - (H5PL_table_g[H5PL_table_used_g]).handle = handle; - (H5PL_table_g[H5PL_table_used_g]).pl_type = plugin_type; - (H5PL_table_g[H5PL_table_used_g]).pl_id = plugin_info->id; -/*fprintf(stderr, "%s: H5PL_table_used_g=%d, id=%d, id 2=%d\n", FUNC, H5PL_table_used_g, (H5PL_table_g[H5PL_table_used_g]).pl_id, plugin_info->id);*/ - H5PL_table_used_g++; - - *info = (void *)plugin_info; - ret_value = TRUE; - - HGOTO_DONE(ret_value) - } else if(H5PL_close(handle) < 0) - HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") - } - } - - if(pathname) - pathname = (char *)H5MM_xfree(pathname); - } - } - - if(HDclosedir(dirp) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CLOSEERROR, FAIL, "can't close directory: %s", strerror(errno)) - dirp = NULL; + if(!(dirp = HDopendir(dir))) + HGOTO_ERROR(H5E_PLUGIN, H5E_OPENERROR, FAIL, "can't open directory") + + /* Iterates through all entries in the directory to find the right plugin library */ + while ((dp = HDreaddir(dirp)) != NULL) { + /* The library we are looking for should be called libxxx.so... */ + if(!HDstrncmp(dp->d_name, "lib", (size_t)3) && HDstrstr(dp->d_name, ".so")) { + pathname = (char *)H5MM_malloc(strlen(dir) + strlen(dp->d_name) + 2); + HDstrncpy(pathname, dir, strlen(dir)+1); + HDstrcat(pathname, "/"); + HDstrcat(pathname, dp->d_name); + + /*fprintf(stderr, "dp->d_name=%s, pathname=%s. ", dp->d_name, pathname); + fprintf(stderr, "\n");*/ + + if(HDstat(pathname, &my_stat) == -1) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't stat file: %s", strerror(errno)) + + /* If it is a directory, skip it */ + if(S_ISDIR(my_stat.st_mode)) + continue; + + if((found_in_dir = H5PL_open(plugin_type, pathname, type_id, info)) < 0) + HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "search in directory failed") + + if(found_in_dir) { + ret_value = TRUE; + HGOTO_DONE(ret_value) + } else + if(pathname) + pathname = (char *)H5MM_xfree(pathname); + } } + if(HDclosedir(dirp) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CLOSEERROR, FAIL, "can't close directory: %s", strerror(errno)) + dirp = NULL; done: if(pathname) @@ -321,6 +279,78 @@ done: /*------------------------------------------------------------------------- + * Function: H5PL_open + * + * Purpose: Iterates through all files to find the right plugin library. + * It loads the dynamic plugin library and keeps it on the list + * of loaded libraries. + * + * Return: TRUE on success, + * FALSE on not found, + * negative on failure + * + * Programmer: Raymond Lu + * 13 February 2013 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +htri_t +H5PL_open(H5PL_type_t pl_type, char *libname, int pl_id, void **pl_info) +{ + H5PL_HANDLE handle = NULL; + H5Z_class2_t* (*H5PL_get_plugin_info)(void) = NULL; + H5Z_class2_t *plugin_info = NULL; + htri_t ret_value = FALSE; + + FUNC_ENTER_NOAPI(FAIL) + + /* There are different reasons why a library can't be open, e.g. wrong architecture. + * simply continue if we can't open it */ + if(NULL == (handle = H5PL_OPEN_DLIB(libname))) + /*fprintf(stderr, "not open dl library: %s", H5PL_CLR_ERR);*/ + HGOTO_DONE(ret_value) + + H5PL_CLR_ERR; /*clear error*/ + + /* Return a handle for the function H5PL_get_plugin_info in the dynamic library. + * The plugin library is suppose to define this function. */ + if(NULL == (H5PL_get_plugin_info = H5PL_GET_LIB_FUNC(handle, "H5PL_get_plugin_info"))) { + if(H5PL_close(handle) < 0) + HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") + } + + /* Envoke H5PL_get_plugin_info to verify this is the right library we are looking for. + * Move on if it isn't. */ + if(H5PL_get_plugin_info) { + if(NULL == (plugin_info = (*H5PL_get_plugin_info)())) { + if(H5PL_close(handle) < 0) + HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "can't get plugin info") + } + + if(plugin_info->id == pl_id) { + (H5PL_table_g[H5PL_table_used_g]).handle = handle; + (H5PL_table_g[H5PL_table_used_g]).pl_type = pl_type; + (H5PL_table_g[H5PL_table_used_g]).pl_id = plugin_info->id; +/*fprintf(stderr, "%s: H5PL_table_used_g=%d, id=%d, id 2=%d\n", FUNC, H5PL_table_used_g, (H5PL_table_g[H5PL_table_used_g]).pl_id, plugin_info->id);*/ + H5PL_table_used_g++; + + *pl_info = (void *)plugin_info; + ret_value = TRUE; + + HGOTO_DONE(ret_value) + } else if(H5PL_close(handle) < 0) + HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") + } + +done: + FUNC_LEAVE_NOAPI(ret_value) +} + + +/*------------------------------------------------------------------------- * Function: H5PL_search_table * * Purpose: Search in the list of already opened dynamic libraries @@ -340,10 +370,9 @@ done: htri_t H5PL_search_table(H5PL_type_t plugin_type, int type_id, void **info) { - htri_t found = FALSE; H5Z_class2_t* (*H5PL_get_plugin_info)(void) = NULL; H5Z_class2_t *plugin_info = NULL; - int i; + size_t i; htri_t ret_value = FALSE; FUNC_ENTER_NOAPI(FAIL) @@ -355,8 +384,8 @@ fprintf(stderr, "%s: H5PL_table_used_g=%d, id=%d\n", FUNC, H5PL_table_used_g, (H if(0 < H5PL_table_used_g) { for(i=0; i<H5PL_table_used_g; i++) { if((plugin_type == (H5PL_table_g[i]).pl_type) && (type_id == (H5PL_table_g[i]).pl_id)) { - if(NULL == (H5PL_get_plugin_info = dlsym((H5PL_table_g[i]).handle, "H5PL_get_plugin_info"))) - HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "can't get function: %s", dlerror()) + if(NULL == (H5PL_get_plugin_info = H5PL_GET_LIB_FUNC((H5PL_table_g[i]).handle, "H5PL_get_plugin_info"))) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "can't get function: %s", H5PL_CLR_ERR) if(NULL == (plugin_info = (*H5PL_get_plugin_info)())) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "can't get plugin info") @@ -401,13 +430,13 @@ done: *------------------------------------------------------------------------- */ herr_t -H5PL_close(void *handle) +H5PL_close(H5PL_HANDLE handle) { herr_t ret_value = SUCCEED; FUNC_ENTER_NOAPI(FAIL) /*fprintf(stderr, "%s: closing. handle=%p\n", FUNC, handle);*/ - dlclose(handle); + H5PL_CLOSE_LIB(handle); done: FUNC_LEAVE_NOAPI(ret_value) |