diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/H5PL.c | 68 |
1 files changed, 68 insertions, 0 deletions
@@ -104,6 +104,13 @@ typedef const void *(*H5PL_get_plugin_info_t)(void); /* Special symbol to indicate no plugin loading */ #define H5PL_NO_PLUGIN "::" +/* Special symbol to indicate relative path from environment */ +#define H5PL_PLUGIN_ENV_SPECIALCHAR '@' + +/* Maximum size for path to executable */ +#ifndef MAX_EXEC_PATH +#define MAX_EXEC_PATH 2048 +#endif /******************/ /* Local Typedefs */ @@ -154,6 +161,7 @@ static H5PL_table_t *H5PL_table_g = NULL; static char *H5PL_path_table_g[H5PL_MAX_PATH_NUM]; static size_t H5PL_num_paths_g = 0; static hbool_t H5PL_path_found_g = FALSE; +static char *H5PL_executable_path_g = NULL; /* Enable all plugin libraries */ static unsigned int H5PL_plugin_g = H5PL_ALL_PLUGIN; @@ -175,6 +183,7 @@ herr_t H5PL__init_package(void) { char *preload_path; + char *tempbuf; FUNC_ENTER_PACKAGE_NOERR @@ -186,6 +195,36 @@ H5PL__init_package(void) if(!HDstrcmp(preload_path, H5PL_NO_PLUGIN)) H5PL_plugin_g = 0; + /* Retrieve the executable path for use with H5PL_PLUGIN_ENV_SPECIALCHAR + * if the user uses it in a plugin path. + */ + if(NULL == (tempbuf = (char *)H5MM_malloc(MAX_EXEC_PATH))) + HGOTO_ERROR(H5E_PLUGIN, H5E_CANTALLOC, FAIL, "can't allocate memory for executable path") +#if defined(_WIN32) || defined(_WIN64) || defined(H5_HAVE_WIN32_API) + const char PathSep = '\\'; + GetModuleFileName(NULL, tempbuf, MAX_EXEC_PATH); +#elif defined(__APPLE__) + const char PathSep = '/'; + uint32_t size = sizeof(result); + _NSGetExecutablePath(tempbuf, &size); +#else + const char PathSep = '/'; + { + ssize_t count = readlink("/proc/self/exe", tempbuf, MAX_EXEC_PATH); + tempbuf[count] = '\0'; + } +#endif + { + char *bs = strrchr(tempbuf, PathSep); + size_t ncopy = MAX_EXEC_PATH; + if (bs) + ncopy = bs - tempbuf; + tempbuf[ncopy] = '\0'; + } + H5PL_executable_path_g = H5MM_strdup(tempbuf); + if(tempbuf) + tempbuf = (char *)H5MM_xfree(tempbuf); + FUNC_LEAVE_NOAPI(SUCCEED) } /* end H5PL__init_package() */ @@ -239,6 +278,10 @@ H5PL_term_package(void) n++; } /* end if */ + /* Free the executable path */ + if(H5PL_executable_path_g) + H5PL_executable_path_g = (char *)H5MM_xfree(H5PL_executable_path_g); + /* Mark the interface as uninitialized */ if(0 == n) H5_PKG_INIT_VAR = FALSE; @@ -247,6 +290,31 @@ H5PL_term_package(void) FUNC_LEAVE_NOAPI(n) } /* end H5PL_term_package() */ +static char* +H5PL_env_strdup(const char *plpath) +{ + char *dl_path = NULL; + if(NULL == plpath) + HGOTO_ERROR(H5E_PLUGIN, H5E_CANTALLOC, FAIL, "no path provided") + if (*plpath == H5PL_PLUGIN_ENV_SPECIALCHAR) { + char *tempbuf; + int ExecPathLength = strlen(H5PL_executable_path_g); + int PluginPathLength = strlen(plpath); + + if(NULL == (tempbuf = (char *)H5MM_malloc(ExecPathLength + PluginPathLength))) + HGOTO_ERROR(H5E_PLUGIN, H5E_CANTALLOC, FAIL, "can't allocate memory for plugin path") + + HDstrncpy(tempbuf, H5PL_executable_path_g, ExecPathLength); + HDstrncpy(tempbuf+ExecPathLength, s+1, PluginPathLength-1); + tempbuf[ExecPathLength + PluginPathLength] = '\0'; + dl_path = H5MM_strdup(tempbuf); + tempbuf = (char *)H5MM_xfree(tempbuf); + } + else + dl_path = H5MM_strdup(plpath); + return dl_path; +} /* end H5PL_env_strdup() */ + /*------------------------------------------------------------------------- * Function: H5PLset_loading_state |