7d340c0c26
Works on systems with dlopen (e.g., Linux and OS X). It requires dlfcn.h and libdl, which many systems have installed by default.
129 строки
3.5 KiB
C
129 строки
3.5 KiB
C
/*
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* Copyright (c) 2015 Cisco Systems, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "opal_config.h"
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#include "opal/constants.h"
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#include "opal/mca/dl/dl.h"
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#include "opal/util/argv.h"
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#include "dl_dlopen.h"
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/*
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* Public string showing the sysinfo ompi_linux component version number
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*/
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const char *opal_dl_dlopen_component_version_string =
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"OPAL dl dlopen MCA component version " OPAL_VERSION;
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/*
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* Local functions
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*/
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static int dlopen_component_register(void);
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static int dlopen_component_open(void);
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static int dlopen_component_close(void);
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static int dlopen_component_query(mca_base_module_t **module, int *priority);
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/*
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* Instantiate the public struct with all of our public information
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* and pointers to our public functions in it
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*/
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opal_dl_dlopen_component_t mca_dl_dlopen_component = {
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/* Fill in the mca_dl_base_component_t */
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.base = {
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/* First, the mca_component_t struct containing meta information
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about the component itself */
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.base_version = {
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OPAL_DL_BASE_VERSION_1_0_0,
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/* Component name and version */
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"dlopen",
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OPAL_MAJOR_VERSION,
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OPAL_MINOR_VERSION,
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OPAL_RELEASE_VERSION,
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/* Component functions */
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.mca_register_component_params = dlopen_component_register,
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.mca_open_component = dlopen_component_open,
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.mca_close_component = dlopen_component_close,
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.mca_query_component = dlopen_component_query,
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},
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.base_data = {
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/* The component is checkpoint ready */
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MCA_BASE_METADATA_PARAM_CHECKPOINT
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},
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/* The dl framework members */
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.priority = 80
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},
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/* Now fill in the dlopen component-specific members */
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.filename_suffixes_mca_storage = ".so,.dylib,.dll,.sl",
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.filename_suffixes = NULL
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};
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static int dlopen_component_register(void)
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{
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int ret;
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ret =
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mca_base_component_var_register(&mca_dl_dlopen_component.base.base_version,
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"filename_suffixes",
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"Comma-delimited list of filename suffixes that the dlopen component will try",
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MCA_BASE_VAR_TYPE_STRING,
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NULL,
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0,
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MCA_BASE_VAR_FLAG_SETTABLE,
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OPAL_INFO_LVL_5,
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MCA_BASE_VAR_SCOPE_LOCAL,
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&mca_dl_dlopen_component.filename_suffixes_mca_storage);
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if (ret < 0) {
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return ret;
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}
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mca_dl_dlopen_component.filename_suffixes =
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opal_argv_split(mca_dl_dlopen_component.filename_suffixes_mca_storage,
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',');
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return OPAL_SUCCESS;
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}
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static int dlopen_component_open(void)
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{
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return OPAL_SUCCESS;
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}
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static int dlopen_component_close(void)
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{
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if (NULL != mca_dl_dlopen_component.filename_suffixes) {
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opal_argv_free(mca_dl_dlopen_component.filename_suffixes);
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mca_dl_dlopen_component.filename_suffixes = NULL;
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}
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return OPAL_SUCCESS;
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}
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static int dlopen_component_query(mca_base_module_t **module, int *priority)
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{
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/* The priority value is somewhat meaningless here; by
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opal/mca/dl/configure.m4, there's at most one component
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available. */
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*priority = mca_dl_dlopen_component.base.priority;
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*module = &opal_dl_dlopen_module.super;
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return OPAL_SUCCESS;
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}
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