diff options
Diffstat (limited to 'src/H5PL.c')
| -rw-r--r-- | src/H5PL.c | 249 |
1 files changed, 177 insertions, 72 deletions
@@ -26,6 +26,7 @@ #include "H5Eprivate.h" /* Error handling */ #include "H5MMprivate.h" /* Memory management */ #include "H5PLprivate.h" /* Plugin */ +#include "H5VLprivate.h" /* VOL */ #include "H5Zprivate.h" /* Filter pipeline */ @@ -110,6 +111,7 @@ typedef const void *(*H5PL_get_plugin_info_t)(void); typedef struct H5PL_table_t { H5PL_type_t pl_type; /* plugin type */ int pl_id; /* ID for the plugin */ + const char *pl_name; /* name of the plugin */ H5PL_HANDLE handle; /* plugin handle */ } H5PL_table_t; @@ -119,9 +121,9 @@ typedef struct H5PL_table_t { /********************/ static herr_t H5PL__init_path_table(void); -static htri_t H5PL__find(H5PL_type_t plugin_type, int type_id, char *dir, const void **info); -static htri_t H5PL__open(H5PL_type_t pl_type, char *libname, int plugin_id, const void **pl_info); -static htri_t H5PL__search_table(H5PL_type_t plugin_type, int type_id, const void **info); +static htri_t H5PL__find(H5PL_type_t plugin_type, int type_id, const char *plugin_name, char *dir, const void **info); +static htri_t H5PL__open(H5PL_type_t pl_type, char *libname, int plugin_id, const char *plugin_name, const void **pl_info); +static htri_t H5PL__search_table(H5PL_type_t plugin_type, int type_id, const char *plugin_name, const void **info); static herr_t H5PL__close(H5PL_HANDLE handle); @@ -143,9 +145,14 @@ hbool_t H5_PKG_INIT_VAR = FALSE; /*******************/ /* Table for opened plugin libraries */ -static size_t H5PL_table_alloc_g = 0; -static size_t H5PL_table_used_g = 0; -static H5PL_table_t *H5PL_table_g = NULL; +static size_t H5PL_filter_table_alloc_g = 0; +static size_t H5PL_filter_table_used_g = 0; +static H5PL_table_t *H5PL_filter_table_g = NULL; + +/* Table for opened vol plugin libraries */ +static size_t H5PL_vol_table_alloc_g = 0; +static size_t H5PL_vol_table_used_g = 0; +static H5PL_table_t *H5PL_vol_table_g = NULL; /* Table of location paths for plugin libraries */ static char *H5PL_path_table_g[H5PL_MAX_PATH_NUM]; @@ -214,16 +221,28 @@ H5PL_term_package(void) size_t u; /* Local index variable */ /* Close opened dynamic libraries */ - if(H5PL_table_g) { - for(u = 0; u < H5PL_table_used_g; u++) - H5PL__close((H5PL_table_g[u]).handle); - - /* Free the table of dynamic libraries */ - H5PL_table_g = (H5PL_table_t *)H5MM_xfree(H5PL_table_g); - H5PL_table_used_g = H5PL_table_alloc_g = 0; + if(H5PL_filter_table_g) { + for(u = 0; u < H5PL_filter_table_used_g; u++) + H5PL__close((H5PL_filter_table_g[u]).handle); + /* Free the table of dynamic libraries */ + H5PL_filter_table_g = (H5PL_table_t *)H5MM_xfree(H5PL_filter_table_g); + H5PL_filter_table_used_g = H5PL_filter_table_alloc_g = 0; n++; - } /* end if */ + } + + /* Close opened dynamic vol libraries */ + if(H5PL_vol_table_g) { + for(u = 0; u < H5PL_vol_table_used_g; u++) { + H5PL__close((H5PL_vol_table_g[u]).handle); + HDfree(H5PL_vol_table_g[u].pl_name); + } + + /* Free the table of dynamic vol libraries */ + H5PL_vol_table_g = (H5PL_table_t *)H5MM_xfree(H5PL_vol_table_g); + H5PL_vol_table_used_g = H5PL_vol_table_alloc_g = 0; + n++; + } /* Free the table of search paths */ if(H5PL_num_paths_g > 0) { @@ -318,9 +337,9 @@ done: /*------------------------------------------------------------------------- * Function: H5PL_load * - * Purpose: Given the plugin type and identifier, this function searches - * and/or loads a dynamic plugin library first among the already - * opened libraries then in the designated location paths. + * Purpose: Given the plugin type and identifier and/or name, this function + * searches and/or loads a dynamic plugin library first among the + * already opened libraries then in the designated location paths. * * Return: Non-NULL on success/NULL on failure * @@ -330,7 +349,7 @@ done: *------------------------------------------------------------------------- */ const void * -H5PL_load(H5PL_type_t type, int id) +H5PL_load(H5PL_type_t type, int id, const char *name) { htri_t found; /* Whether the plugin was found */ const void *plugin_info = NULL; @@ -338,12 +357,15 @@ H5PL_load(H5PL_type_t type, int id) FUNC_ENTER_NOAPI(NULL) - switch(type) { + switch (type) { case H5PL_TYPE_FILTER: if((H5PL_plugin_g & H5PL_FILTER_PLUGIN) == 0) HGOTO_ERROR(H5E_PLUGIN, H5E_CANTLOAD, NULL, "required dynamically loaded plugin filter '%d' is not available", id) break; - + case H5PL_TYPE_VOL: + if((H5PL_plugin_g & H5PL_VOL_PLUGIN) == 0) + HGOTO_ERROR(H5E_PLUGIN, H5E_CANTLOAD, NULL, "required dynamically loaded plugin filter '%d' is not available", id) + break; case H5PL_TYPE_ERROR: case H5PL_TYPE_NONE: default: @@ -358,7 +380,7 @@ H5PL_load(H5PL_type_t type, int id) HGOTO_ERROR(H5E_PLUGIN, H5E_CANTINIT, NULL, "can't initialize search path table") /* Search in the table of already loaded plugin libraries */ - if((found = H5PL__search_table(type, id, &plugin_info)) < 0) + if((found = H5PL__search_table(type, id, name, &plugin_info)) < 0) HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, NULL, "search in table failed") /* If not found, iterate through the path table to find the right dynamic library */ @@ -366,7 +388,7 @@ H5PL_load(H5PL_type_t type, int id) size_t i; /* Local index variable */ for(i = 0; i < H5PL_num_paths_g; i++) { - if((found = H5PL__find(type, id, H5PL_path_table_g[i], &plugin_info)) < 0) + if((found = H5PL__find(type, id, name, H5PL_path_table_g[i], &plugin_info)) < 0) HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, NULL, "search in paths failed") /* Break out if found */ @@ -460,7 +482,7 @@ done: */ #ifndef H5_HAVE_WIN32_API static htri_t -H5PL__find(H5PL_type_t plugin_type, int type_id, char *dir, const void **info) +H5PL__find(H5PL_type_t plugin_type, int type_id, const char *plugin_name, char *dir, const void **info) { char *pathname = NULL; DIR *dirp = NULL; @@ -504,8 +526,8 @@ H5PL__find(H5PL_type_t plugin_type, int type_id, char *dir, const void **info) if(S_ISDIR(my_stat.st_mode)) continue; - /* Attempt to open the dynamic library as a filter library */ - if((found_in_dir = H5PL__open(plugin_type, pathname, type_id, info)) < 0) + /* Attempt to open the dynamic library */ + if((found_in_dir = H5PL__open(plugin_type, pathname, type_id, plugin_name, info)) < 0) HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "search in directory failed") if(found_in_dir) { /* Indicate success */ @@ -528,7 +550,7 @@ done: } /* end H5PL__find() */ #else /* H5_HAVE_WIN32_API */ static htri_t -H5PL__find(H5PL_type_t plugin_type, int type_id, char *dir, const void **info) +H5PL__find(H5PL_type_t plugin_type, int type_id, const char *plugin_name, char *dir, const void **info) { WIN32_FIND_DATAA fdFile; HANDLE hFind; @@ -561,7 +583,7 @@ H5PL__find(H5PL_type_t plugin_type, int type_id, char *dir, const void **info) if(fdFile.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) continue; - if((found_in_dir = H5PL__open(plugin_type, pathname, type_id, info)) < 0) + if((found_in_dir = H5PL__open(plugin_type, pathname, type_id, plugin_name, info)) < 0) HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "search in directory failed") if(found_in_dir) { /* Indicate success */ @@ -601,7 +623,7 @@ done: *------------------------------------------------------------------------- */ static htri_t -H5PL__open(H5PL_type_t pl_type, char *libname, int pl_id, const void **pl_info) +H5PL__open(H5PL_type_t pl_type, char *libname, int pl_id, const char *pl_name, const void **pl_info) { H5PL_HANDLE handle = NULL; htri_t ret_value = FALSE; @@ -625,45 +647,108 @@ H5PL__open(H5PL_type_t pl_type, char *libname, int pl_id, const void **pl_info) HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") } /* end if */ else { - const H5Z_class2_t *plugin_info; - - /* Invoke H5PLget_plugin_info to verify this is the right library we are looking for. - * Move on if it isn't. - */ - if(NULL == (plugin_info = (const H5Z_class2_t *)(*get_plugin_info)())) { - if(H5PL__close(handle) < 0) - HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") - HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "can't get plugin info") - } /* end if */ - - /* Successfully found plugin library, check if it's the right one */ - if(plugin_info->id == pl_id) { - /* Expand the table if it is too small */ - if(H5PL_table_used_g >= H5PL_table_alloc_g) { - size_t n = MAX(H5Z_MAX_NFILTERS, 2 * H5PL_table_alloc_g); - H5PL_table_t *table = (H5PL_table_t *)H5MM_realloc(H5PL_table_g, n * sizeof(H5PL_table_t)); - - if(!table) - HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "unable to extend dynamic library table") - - H5PL_table_g = table; - H5PL_table_alloc_g = n; - } /* end if */ - - (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; - H5PL_table_used_g++; - - /* Set the plugin info to return */ - *pl_info = (const void *)plugin_info; - - /* Indicate success */ - ret_value = TRUE; - } /* end if */ - else - if(H5PL__close(handle) < 0) - HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") + switch(pl_type) { + case H5PL_TYPE_FILTER: + { + const H5Z_class2_t *plugin_info; + + /* Invoke H5PLget_plugin_info to verify this is the right library we are looking for. + * Move on if it isn't. + */ + if(NULL == (plugin_info = (const H5Z_class2_t *)(*get_plugin_info)())) { + if(H5PL__close(handle) < 0) + HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") + HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "can't get plugin info") + } /* end if */ + + /* Successfully found plugin library, check if it's the right one */ + if(plugin_info->id == pl_id) { + /* Expand the table if it is too small */ + if(H5PL_filter_table_used_g >= H5PL_filter_table_alloc_g) { + size_t n = MAX(H5Z_MAX_NFILTERS, 2 * H5PL_filter_table_alloc_g); + H5PL_table_t *table = (H5PL_table_t *)H5MM_realloc(H5PL_filter_table_g, n * sizeof(H5PL_table_t)); + + if(!table) + HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "unable to extend dynamic library table") + + H5PL_filter_table_g = table; + H5PL_filter_table_alloc_g = n; + } /* end if */ + + (H5PL_filter_table_g[H5PL_filter_table_used_g]).handle = handle; + (H5PL_filter_table_g[H5PL_filter_table_used_g]).pl_type = pl_type; + (H5PL_filter_table_g[H5PL_filter_table_used_g]).pl_id = plugin_info->id; + H5PL_filter_table_used_g++; + + /* Set the plugin info to return */ + *pl_info = (const void *)plugin_info; + + /* Indicate success */ + ret_value = TRUE; + } /* end if */ + else + if(H5PL__close(handle) < 0) + HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") + + break; + } + case H5PL_TYPE_VOL: + { + const H5VL_class_t *plugin_info; + + /* Invoke H5PLget_plugin_info to verify this is the right library we are looking for. + * Move on if it isn't. + */ + if(NULL == (plugin_info = (const H5VL_class_t *)(*get_plugin_info)())) { + if(H5PL__close(handle) < 0) + HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") + HGOTO_ERROR(H5E_PLUGIN, H5E_CANTGET, FAIL, "can't get plugin info") + } /* end if */ + + /* Successfully found plugin library, check if it's the right one */ + if((pl_id > H5_VOL_MAX_LIB_VALUE && plugin_info->value == pl_id) || + (pl_name && !strcmp(pl_name, plugin_info->name))) { + /* Expand the table if it is too small */ + if(H5PL_vol_table_used_g >= H5PL_vol_table_alloc_g) { + size_t n; + H5PL_table_t *table = NULL; + + if(0 == H5PL_vol_table_alloc_g) + n = 16; + else + n = 2 * H5PL_vol_table_alloc_g; + + table = (H5PL_table_t *)H5MM_realloc(H5PL_vol_table_g, n * sizeof(H5PL_table_t)); + if(!table) + HGOTO_ERROR(H5E_RESOURCE, H5E_CANTALLOC, FAIL, "unable to extend dynamic library table for vol plugins") + + H5PL_vol_table_g = table; + H5PL_vol_table_alloc_g = n; + } /* end if */ + + (H5PL_vol_table_g[H5PL_vol_table_used_g]).handle = handle; + (H5PL_vol_table_g[H5PL_vol_table_used_g]).pl_type = pl_type; + (H5PL_vol_table_g[H5PL_vol_table_used_g]).pl_id = plugin_info->value; + (H5PL_vol_table_g[H5PL_vol_table_used_g]).pl_name = HDstrdup(pl_name); + H5PL_vol_table_used_g++; + + /* Set the plugin info to return */ + *pl_info = (const void *)plugin_info; + + /* Indicate success */ + ret_value = TRUE; + } /* end if */ + else + if(H5PL__close(handle) < 0) + HGOTO_ERROR(H5E_PLUGIN, H5E_CLOSEERROR, FAIL, "can't close dynamic library") + + break; + } + case H5PL_TYPE_ERROR: + case H5PL_TYPE_NONE: + default: + HGOTO_ERROR(H5E_PLUGIN, H5E_BADVALUE, FAIL, "invalid plugin type") + } /* end switch */ } /* end if */ } /* end else */ @@ -688,22 +773,22 @@ done: *------------------------------------------------------------------------- */ static htri_t -H5PL__search_table(H5PL_type_t plugin_type, int type_id, const void **info) +H5PL__search_table(H5PL_type_t plugin_type, int type_id, const char *plugin_name, const void **info) { htri_t ret_value = FALSE; FUNC_ENTER_STATIC /* Search in the table of already opened dynamic libraries */ - if(H5PL_table_used_g > 0) { + if(H5PL_TYPE_FILTER == plugin_type && H5PL_filter_table_used_g > 0) { size_t i; - 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)) { + for(i = 0; i < H5PL_filter_table_used_g; i++) { + if((plugin_type == (H5PL_filter_table_g[i]).pl_type) && (type_id == (H5PL_filter_table_g[i]).pl_id)) { H5PL_get_plugin_info_t get_plugin_info; const H5Z_class2_t *plugin_info; - if(NULL == (get_plugin_info = (H5PL_get_plugin_info_t)H5PL_GET_LIB_FUNC((H5PL_table_g[i]).handle, "H5PLget_plugin_info"))) + if(NULL == (get_plugin_info = (H5PL_get_plugin_info_t)H5PL_GET_LIB_FUNC((H5PL_filter_table_g[i]).handle, "H5PLget_plugin_info"))) HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "can't get function for H5PLget_plugin_info") if(NULL == (plugin_info = (const H5Z_class2_t *)(*get_plugin_info)())) @@ -714,6 +799,26 @@ H5PL__search_table(H5PL_type_t plugin_type, int type_id, const void **info) } /* end if */ } /* end for */ } /* end if */ + else if(H5PL_TYPE_VOL == plugin_type && H5PL_vol_table_used_g > 0) { + size_t i; + + for(i = 0; i < H5PL_vol_table_used_g; i++) { + if((plugin_type == (H5PL_vol_table_g[i]).pl_type) && + (type_id == (H5PL_vol_table_g[i]).pl_id || !strcmp(plugin_name, (H5PL_vol_table_g[i]).pl_name))) { + H5PL_get_plugin_info_t get_plugin_info; + const H5VL_class_t *plugin_info; + + if(NULL == (get_plugin_info = (H5PL_get_plugin_info_t)H5PL_GET_LIB_FUNC((H5PL_vol_table_g[i]).handle, "H5PLget_plugin_info"))) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "can't get function for H5PLget_plugin_info") + + if(NULL == (plugin_info = (const H5VL_class_t *)(*get_plugin_info)())) + HGOTO_ERROR(H5E_DATATYPE, H5E_CANTGET, FAIL, "can't get plugin info") + + *info = plugin_info; + HGOTO_DONE(TRUE) + } /* end if */ + } /* end for */ + } /* end if */ done: FUNC_LEAVE_NOAPI(ret_value) |