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persist: fix possible leak on error (#10568)

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This commit is contained in:
Benoit Pierre
2023-06-12 07:25:54 +00:00
committed by GitHub
parent 46933035c5
commit f7d5828f08
1 changed files with 1 additions and 4 deletions
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5
frontend/persist.lua
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@@ -82,13 +82,11 @@ local codecs = {
if not ok then
return nil, "cannot serialize " .. tostring(t) .. " (" .. str .. ")"
end
local cbuff, clen = zstd.zstd_compress(str, #str)
local f = C.fopen(path, "wb")
if f == nil then
return nil, "fopen: " .. ffi.string(C.strerror(ffi.errno()))
end
local cbuff, clen = zstd.zstd_compress(str, #str)
if C.fwrite(cbuff, 1, clen, f) < clen then
C.fclose(f)
C.free(cbuff)
@@ -98,7 +96,6 @@ local codecs = {
C.fsync(C.fileno(f))
C.fclose(f)
C.free(cbuff)
--- @note: Slight API extension for TileCacheItem, which needs to know the on-disk size, and saves us a :size() call
return true, clen
end,