diff options
Diffstat (limited to 'src/H5PL.c')
| -rw-r--r-- | src/H5PL.c | 166 |
1 files changed, 92 insertions, 74 deletions
@@ -16,8 +16,7 @@ /* Module Setup */ /****************/ -/* Interface initialization */ -#define H5_INTERFACE_INIT_FUNC H5PL__init_interface +#include "H5PLmodule.h" /* This source code file is part of the H5PL module */ /***********/ @@ -52,7 +51,6 @@ * If you do not do this, people will be unable to incorporate our * source code into their own CMake builds if they define UNICODE. */ - #ifdef H5_HAVE_WIN32_API #define H5PL_PATH_SEPARATOR ";" @@ -103,6 +101,7 @@ typedef const void *(*H5PL_get_plugin_info_t)(void); /* Special symbol to indicate no plugin loading */ #define H5PL_NO_PLUGIN "::" + /******************/ /* Local Typedefs */ /******************/ @@ -130,6 +129,9 @@ static herr_t H5PL__close(H5PL_HANDLE handle); /* Package Variables */ /*********************/ +/* Package initialization variable */ +hbool_t H5_PKG_INIT_VAR = FALSE; + /*****************************/ /* Library Private Variables */ @@ -153,36 +155,94 @@ static hbool_t H5PL_path_found_g = FALSE; /* Enable all plugin libraries */ static unsigned int H5PL_plugin_g = H5PL_ALL_PLUGIN; + /*-------------------------------------------------------------------------- NAME - H5PL__init_interface -- Initialize interface-specific information + H5PL__init_package -- Initialize interface-specific information USAGE - herr_t H5PL__init_interface() + herr_t H5PL__init_package() RETURNS Non-negative on success/Negative on failure DESCRIPTION Initializes any interface-specific data or routines. --------------------------------------------------------------------------*/ -static herr_t -H5PL__init_interface(void) +herr_t +H5PL__init_package(void) { char *preload_path; - FUNC_ENTER_STATIC_NOERR + FUNC_ENTER_PACKAGE_NOERR /* Retrieve pathnames from HDF5_PLUGIN_PRELOAD if the user sets it * to tell the library to load plugin libraries without search. */ - if(NULL != (preload_path = HDgetenv("HDF5_PLUGIN_PRELOAD"))) { + if(NULL != (preload_path = HDgetenv("HDF5_PLUGIN_PRELOAD"))) /* Special symbal "::" means no plugin during data reading. */ if(!HDstrcmp(preload_path, H5PL_NO_PLUGIN)) H5PL_plugin_g = 0; - } /* end if */ FUNC_LEAVE_NOAPI(SUCCEED) -} /* end H5PL__init_interface() */ +} /* end H5PL__init_package() */ + + +/*------------------------------------------------------------------------- + * Function: H5PL_term_package + * + * Purpose: Terminate the H5PL interface: release all memory, reset all + * global variables to initial values. This only happens if all + * types have been destroyed from other interfaces. + * + * Return: Success: Positive if any action was taken that might + * affect some other interface; zero otherwise. + * Failure: Negative. + * + * Programmer: Raymond Lu + * 20 February 2013 + * + *------------------------------------------------------------------------- + */ +int +H5PL_term_package(void) +{ + int n = 0; + + FUNC_ENTER_NOAPI_NOINIT_NOERR + + if(H5_PKG_INIT_VAR) { + 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; + + n++; + } /* end if */ + + /* Free the table of search paths */ + if(H5PL_num_paths_g > 0) { + for(u = 0; u < H5PL_num_paths_g; u++) + if(H5PL_path_table_g[u]) + H5PL_path_table_g[u] = (char *)H5MM_xfree(H5PL_path_table_g[u]); + H5PL_num_paths_g = 0; + H5PL_path_found_g = FALSE; + + n++; + } /* end if */ + + /* Mark the interface as uninitialized */ + if(0 == n) + H5_PKG_INIT_VAR = FALSE; + } /* end if */ + + FUNC_LEAVE_NOAPI(n) +} /* end H5PL_term_package() */ /*------------------------------------------------------------------------- @@ -209,21 +269,24 @@ H5PLset_loading_state(unsigned int plugin_type) { char *preload_path; herr_t ret_value = SUCCEED; /* Return value */ + FUNC_ENTER_API(FAIL) H5TRACE1("e", "Iu", plugin_type); + /* change the bit value of the requested plugin type(s) */ H5PL_plugin_g = plugin_type; + /* check if special ENV variable is set and disable all plugin types */ - if(NULL != (preload_path = HDgetenv("HDF5_PLUGIN_PRELOAD"))) { + if(NULL != (preload_path = HDgetenv("HDF5_PLUGIN_PRELOAD"))) /* Special symbol "::" means no plugin during data reading. */ if(!HDstrcmp(preload_path, H5PL_NO_PLUGIN)) H5PL_plugin_g = 0; - } + done: FUNC_LEAVE_API(ret_value) } /* end H5PLset_loading_state() */ - + /*------------------------------------------------------------------------- * Function: H5PLget_loading_state * @@ -240,66 +303,17 @@ herr_t H5PLget_loading_state(unsigned int *plugin_type) { herr_t ret_value = SUCCEED; /* Return value */ + FUNC_ENTER_API(FAIL) H5TRACE1("e", "*Iu", plugin_type); if(plugin_type) *plugin_type = H5PL_plugin_g; - done: + +done: FUNC_LEAVE_API(ret_value) } /* end H5PLget_loading_state() */ - - -/*------------------------------------------------------------------------- - * Function: H5PL_term_interface - * - * Purpose: Terminate the H5PL interface: release all memory, reset all - * global variables to initial values. This only happens if all - * types have been destroyed from other interfaces. - * - * Return: Success: Positive if any action was taken that might - * affect some other interface; zero otherwise. - * - * Failure: Negative. - * - * Programmer: Raymond Lu - * 20 February 2013 - * - *------------------------------------------------------------------------- - */ -int -H5PL_term_interface(void) -{ - int i = 0; - - FUNC_ENTER_NOAPI_NOINIT_NOERR - - if(H5_interface_initialize_g) { - size_t u; /* Local index variable */ - - /* Close opened dynamic libraries */ - 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; - - /* Free the table of search paths */ - for(u = 0; u < H5PL_num_paths_g; u++) - if(H5PL_path_table_g[u]) - H5PL_path_table_g[u] = (char *)H5MM_xfree(H5PL_path_table_g[u]); - H5PL_num_paths_g = 0; - H5PL_path_found_g = FALSE; - - H5_interface_initialize_g = 0; - i = 1; - } /* end if */ - - FUNC_LEAVE_NOAPI(i) -} /* end H5PL_term_interface() */ - /*------------------------------------------------------------------------- * Function: H5PL_load @@ -324,14 +338,17 @@ H5PL_load(H5PL_type_t type, int id) FUNC_ENTER_NOAPI(NULL) - 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; - default: - HGOTO_ERROR(H5E_PLUGIN, H5E_CANTLOAD, NULL, "required dynamically loaded plugin '%d' is not valid", id) - } + 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_ERROR: + case H5PL_TYPE_NONE: + default: + HGOTO_ERROR(H5E_PLUGIN, H5E_CANTLOAD, NULL, "required dynamically loaded plugin '%d' is not valid", id) + } /* end switch */ /* Initialize the location paths for dynamic libraries, if they aren't * already set up. @@ -724,3 +741,4 @@ H5PL__close(H5PL_HANDLE handle) FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5PL__close() */ + |