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author | Felipe Franciosi <felipe@nutanix.com> | 2019-07-02 14:06:42 +0100 |
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committer | Felipe Franciosi <felipe@nutanix.com> | 2019-09-05 16:45:35 +0100 |
commit | f8ef2771ca6c05dadd3188099eb678e6135e12e2 (patch) | |
tree | 1629283ee553622ce99477c63da4994d4c87bc0f /lib/common.h | |
download | libvfio-user-f8ef2771ca6c05dadd3188099eb678e6135e12e2.zip libvfio-user-f8ef2771ca6c05dadd3188099eb678e6135e12e2.tar.gz libvfio-user-f8ef2771ca6c05dadd3188099eb678e6135e12e2.tar.bz2 |
Initial commit
Diffstat (limited to 'lib/common.h')
-rw-r--r-- | lib/common.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/lib/common.h b/lib/common.h new file mode 100644 index 0000000..4fbc048 --- /dev/null +++ b/lib/common.h @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2019 Nutanix Inc. All rights reserved. + * + * Authors: Thanos Makatos <thanos@nutanix.com> + * Swapnil Ingle <swapnil.ingle@nutanix.com> + * Felipe Franciosi <felipe@nutanix.com> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Nutanix nor the names of its contributors may be + * used to endorse or promote products derived from this software without + * specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * + */ + +#ifndef __COMMON_H__ +#define __COMMON_H__ + +#include <stdint.h> + +#define PAGE_SIZE sysconf(_SC_PAGE_SIZE) +#define PAGE_ALIGNED(x) (((x) & ((typeof(x))(PAGE_SIZE) - 1)) == 0) + +#define BIT(nr) (1UL << (nr)) + +#define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0])) + +#define likely(e) __builtin_expect(!!(e), 1) +#define unlikely(e) __builtin_expect(e, 0) + +#define ROUND_DOWN(x, a) ((x) & ~((a)-1)) +#define ROUND_UP(x,a) ROUND_DOWN((x)+(a)-1, a) + +void lm_log(lm_ctx_t const *const lm_ctx, const lm_log_lvl_t lvl, + char const *const fmt, ...); + +void dump_buffer(lm_ctx_t const *const lm_ctx, char const *const prefix, + unsigned char const *const buf, uint32_t count); + + +#endif /* __COMMON_H__ */ + +/* ex: set tabstop=4 shiftwidth=4 softtabstop=4 expandtab: */ |