diff options
Diffstat (limited to '3rdparty/plibsys/src/plibraryloader-beos.c')
-rw-r--r-- | 3rdparty/plibsys/src/plibraryloader-beos.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/3rdparty/plibsys/src/plibraryloader-beos.c b/3rdparty/plibsys/src/plibraryloader-beos.c new file mode 100644 index 0000000..403f7f4 --- /dev/null +++ b/3rdparty/plibsys/src/plibraryloader-beos.c @@ -0,0 +1,142 @@ +/* + * The MIT License + * + * Copyright (C) 2016-2017 Alexander Saprykin <saprykin.spb@gmail.com> + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * 'Software'), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "perror.h" +#include "pfile.h" +#include "plibraryloader.h" +#include "pmem.h" +#include "pstring.h" + +#include <be/kernel/image.h> + +typedef image_id plibrary_handle; + +struct PLibraryLoader_ { + plibrary_handle handle; + status_t last_status; +}; + +static void pp_library_loader_clean_handle (plibrary_handle handle); + +static void +pp_library_loader_clean_handle (plibrary_handle handle) +{ + if (P_UNLIKELY (unload_add_on (handle) != B_OK)) + P_ERROR ("PLibraryLoader::pp_library_loader_clean_handle: unload_add_on() failed"); +} + +P_LIB_API PLibraryLoader * +p_library_loader_new (const pchar *path) +{ + PLibraryLoader *loader = NULL; + plibrary_handle handle; + + if (!p_file_is_exists (path)) + return NULL; + + if (P_UNLIKELY ((handle = load_add_on (path)) == B_ERROR)) { + P_ERROR ("PLibraryLoader::p_library_loader_new: load_add_on() failed"); + return NULL; + } + + if (P_UNLIKELY ((loader = p_malloc0 (sizeof (PLibraryLoader))) == NULL)) { + P_ERROR ("PLibraryLoader::p_library_loader_new: failed to allocate memory"); + pp_library_loader_clean_handle (handle); + return NULL; + } + + loader->handle = handle; + loader->last_status = B_OK; + + return loader; +} + +P_LIB_API PFuncAddr +p_library_loader_get_symbol (PLibraryLoader *loader, const pchar *sym) +{ + ppointer location = NULL; + status_t status; + + if (P_UNLIKELY (loader == NULL || sym == NULL)) + return NULL; + + if (P_UNLIKELY ((status = get_image_symbol (loader->handle, + (pchar *) sym, + B_SYMBOL_TYPE_ANY, + &location)) != B_OK)) { + P_ERROR ("PLibraryLoader::p_library_loader_get_symbol: get_image_symbol() failed"); + loader->last_status = status; + return NULL; + } + + loader->last_status = B_OK; + + return (PFuncAddr) location; +} + +P_LIB_API void +p_library_loader_free (PLibraryLoader *loader) +{ + if (P_UNLIKELY (loader == NULL)) + return; + + pp_library_loader_clean_handle (loader->handle); + + p_free (loader); +} + +P_LIB_API pchar * +p_library_loader_get_last_error (PLibraryLoader *loader) +{ + if (loader == NULL) + return NULL; + + switch (loader->last_status) { + case B_OK: + return NULL; + case B_BAD_IMAGE_ID: + return p_strdup ("Image handler doesn't identify an existing image"); + case B_BAD_INDEX: + return p_strdup ("Invalid symbol index"); + default: + return p_strdup ("Unknown error"); + } +} + +P_LIB_API pboolean +p_library_loader_is_ref_counted (void) +{ + return TRUE; +} + +void +p_library_loader_init (void) +{ +} + +void +p_library_loader_shutdown (void) +{ +} |