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fix(stats): fix the layout of struct timespec 

Previously, the layout was only correct on 64-bit platforms. This is
based on include/alltypes.h.in in musl.
This commit is contained in:
Nathan Ringo 2024-11-20 15:09:54 -06:00
parent 56ead98e05
commit ed4872abc6
1 changed files with 18 additions and 1 deletions
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19
lua/lazy/stats.lua
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@ -34,12 +34,29 @@ end
function M.cputime() function M.cputime()
if M.C == nil then if M.C == nil then
pcall(function() pcall(function()
local pad = ""
-- If we're a 32-bit platform, we need to pad by 4 bytes.
if ffi.abi("32bit") then
pad = "int _tv_pad;"
end
local pad_before_nsec = ""
local pad_after_nsec = ""
-- Where we place the padding depends on the endianness.
if ffi.abi("le") then
pad_after_nsec = pad
else
pad_before_nsec = pad
end
ffi.cdef([[ ffi.cdef([[
typedef long time_t; typedef int64_t time_t;
typedef int clockid_t; typedef int clockid_t;
typedef struct timespec { typedef struct timespec {
time_t tv_sec; /* seconds */ time_t tv_sec; /* seconds */
]] .. pad_before_nsec .. [[
long tv_nsec; /* nanoseconds */ long tv_nsec; /* nanoseconds */
]] .. pad_after_nsec .. [[
} nanotime; } nanotime;
int clock_gettime(clockid_t clk_id, struct timespec *tp); int clock_gettime(clockid_t clk_id, struct timespec *tp);
]]) ]])