e9e4d2a4bc
The Open MPI code base assumed that asprintf always behaved like the FreeBSD variant, where ptr is set to NULL on error. However, the C standard (and Linux) only guarantee that the return code will be -1 on error and leave ptr undefined. Rather than fix all the usage in the code, we use opal_asprintf() wrapper instead, which guarantees the BSD-like behavior of ptr always being set to NULL. In addition to being correct, this will fix many, many warnings in the Open MPI code base. Signed-off-by: Brian Barrett <bbarrett@amazon.com>
120 строки
3.4 KiB
C
120 строки
3.4 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2011 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2013-2015 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2017 IBM Corporation. All rights reserved.
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*
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* Copyright (c) 2017 Intel, Inc. All rights reserved.
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* Copyright (c) 2018 Amazon.com, Inc. or its affiliates. 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/event/event.h"
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#include "event.h"
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#include "opal/util/argv.h"
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#include "opal/util/printf.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_event_external_component_version_string =
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"OPAL event_external event MCA component version " OPAL_VERSION;
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/*
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* Local function
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*/
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static int event_external_open(void);
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static int event_external_register (void);
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char *ompi_event_module_include = NULL;
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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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const opal_event_component_t mca_event_external_component = {
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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_EVENT_BASE_VERSION_2_0_0,
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/* Component name and version */
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.mca_component_name = "external",
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MCA_BASE_MAKE_VERSION(component, OPAL_MAJOR_VERSION, OPAL_MINOR_VERSION,
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OPAL_RELEASE_VERSION),
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/* Component open and close functions */
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.mca_open_component = event_external_open,
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.mca_register_component_params = event_external_register
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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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};
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static int event_external_open(void)
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{
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/* Must have some code in this file, or the OS X linker may
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eliminate the whole file */
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return OPAL_SUCCESS;
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}
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static int event_external_register (void) {
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const char **all_available_eventops;
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char *avail = NULL;
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char *help_msg = NULL;
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int ret;
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// Get supported methods
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all_available_eventops = event_get_supported_methods();
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#ifdef __APPLE__
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ompi_event_module_include ="select";
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#else
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ompi_event_module_include = "poll";
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#endif
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avail = opal_argv_join((char**)all_available_eventops, ',');
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opal_asprintf( &help_msg,
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"Comma-delimited list of libevent subsystems "
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"to use (%s -- available on your platform)",
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avail );
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ret = mca_base_component_var_register (&mca_event_external_component.base_version,
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"event_include", help_msg,
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MCA_BASE_VAR_TYPE_STRING, NULL, 0,
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MCA_BASE_VAR_FLAG_SETTABLE,
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OPAL_INFO_LVL_3,
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MCA_BASE_VAR_SCOPE_LOCAL,
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&ompi_event_module_include);
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free(help_msg); /* release the help message */
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free(avail);
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avail = NULL;
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if (0 > ret) {
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return ret;
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}
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ret = mca_base_var_register_synonym (ret, "opal", "opal", "event", "include", 0);
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if (0 > ret) {
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return ret;
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}
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return OPAL_SUCCESS;
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}
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