99a2dd955f
There is no reason for the DPDK libraries to all have 'librte_' prefix on the directory names. This prefix makes the directory names longer and also makes it awkward to add features referring to individual libraries in the build - should the lib names be specified with or without the prefix. Therefore, we can just remove the library prefix and use the library's unique name as the directory name, i.e. 'eal' rather than 'librte_eal' Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
82 lines
1.2 KiB
C
82 lines
1.2 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2020 Dmitry Kozlyuk
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*/
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#include <sys/file.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <rte_errno.h>
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#include "eal_private.h"
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int
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eal_file_open(const char *path, int flags)
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{
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static const int MODE_MASK = EAL_OPEN_READONLY | EAL_OPEN_READWRITE;
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int ret, sys_flags;
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switch (flags & MODE_MASK) {
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case EAL_OPEN_READONLY:
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sys_flags = O_RDONLY;
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break;
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case EAL_OPEN_READWRITE:
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sys_flags = O_RDWR;
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break;
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default:
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rte_errno = ENOTSUP;
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return -1;
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}
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if (flags & EAL_OPEN_CREATE)
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sys_flags |= O_CREAT;
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ret = open(path, sys_flags, 0600);
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if (ret < 0)
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rte_errno = errno;
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return ret;
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}
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int
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eal_file_truncate(int fd, ssize_t size)
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{
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int ret;
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ret = ftruncate(fd, size);
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if (ret)
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rte_errno = errno;
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return ret;
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}
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int
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eal_file_lock(int fd, enum eal_flock_op op, enum eal_flock_mode mode)
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{
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int sys_flags = 0;
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int ret;
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if (mode == EAL_FLOCK_RETURN)
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sys_flags |= LOCK_NB;
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switch (op) {
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case EAL_FLOCK_EXCLUSIVE:
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sys_flags |= LOCK_EX;
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break;
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case EAL_FLOCK_SHARED:
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sys_flags |= LOCK_SH;
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break;
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case EAL_FLOCK_UNLOCK:
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sys_flags |= LOCK_UN;
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break;
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}
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ret = flock(fd, sys_flags);
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if (ret)
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rte_errno = errno;
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return ret;
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}
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