mirror of https://github.com/F-Stack/f-stack.git
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2016 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <rte_eal.h>
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#include "eal_filesystem.h"
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#include "eal_internal_cfg.h"
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int
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rte_eal_primary_proc_alive(const char *config_file_path)
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{
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int config_fd;
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if (config_file_path)
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config_fd = open(config_file_path, O_RDONLY);
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else {
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char default_path[PATH_MAX+1];
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snprintf(default_path, PATH_MAX, RUNTIME_CONFIG_FMT,
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default_config_dir, "rte");
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config_fd = open(default_path, O_RDONLY);
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}
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if (config_fd < 0)
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return 0;
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int ret = lockf(config_fd, F_TEST, 0);
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close(config_fd);
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return !!ret;
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}
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