90 lines
3.9 KiB
C
90 lines
3.9 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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/*! \file common/utils/load_module_shlib.h
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* \brief include file for users of the shared lib loader
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* \author Francois TABURET
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* \date 2017
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* \version 0.1
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* \company NOKIA BellLabs France
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* \email: francois.taburet@nokia-bell-labs.com
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* \note
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* \warning
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*/
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#ifndef LOAD_SHLIB_H
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#define LOAD_SHLIB_H
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typedef struct {
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char *fname;
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int (*fptr)(void);
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}loader_shlibfunc_t;
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typedef struct {
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char *name;
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char *shlib_version; //
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char *shlib_buildversion;
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char *thisshlib_path;
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uint32_t numfunc;
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loader_shlibfunc_t *funcarray;
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uint32_t len_funcarray;
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}loader_shlibdesc_t;
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typedef struct {
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char *mainexec_buildversion;
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char *shlibpath;
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uint32_t maxshlibs;
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uint32_t numshlibs;
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loader_shlibdesc_t *shlibs;
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}loader_data_t;
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/* function type of functions which may be implemented by a module */
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/* 1: init function, called when loading, if found in the shared lib */
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typedef int(*initfunc_t)(void *);
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/* 2: version checking function, called when loading, if it returns -1, trigger main exec abort */
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typedef int(*checkverfunc_t)(char * mainexec_version, char ** shlib_version);
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/* 3: get function array function, called when loading when a module doesn't provide */
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/* the function array when calling load_module_shlib (farray param NULL) */
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typedef int(*getfarrayfunc_t)(loader_shlibfunc_t **funcarray);
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#define LOADER_CONFIG_PREFIX "loader"
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#define DEFAULT_PATH ""
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#define DEFAULT_MAXSHLIBS 10
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extern loader_data_t loader_data;
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/*----------------------------------------------------------------------------------------------------------------------------------------------------------*/
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/* LOADER parameters */
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/* optname helpstr paramflags XXXptr defXXXval type numelt check func*/
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/*----------------------------------------------------------------------------------------------------------------------------------------------------------*/
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// clang-format off
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#define LOADER_PARAMS_DESC { \
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{"shlibpath", NULL, PARAMFLAG_NOFREE, .strptr = &loader_data.shlibpath, .defstrval = DEFAULT_PATH, TYPE_STRING, 0, NULL }, \
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{"maxshlibs", NULL, 0, .uptr = &(loader_data.maxshlibs), .defintval = DEFAULT_MAXSHLIBS, TYPE_UINT32, 0, NULL }, \
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}
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// clang-format on
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int load_module_version_shlib(char *modname, char *version, loader_shlibfunc_t *farray, int numf, void *initfunc_arg);
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void *get_shlibmodule_fptr(char *modname, char *fname);
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#define load_module_shlib(M, F, N, I) load_module_version_shlib(M, NULL, F, N, I)
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void loader_reset();
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#endif
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