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mdbx: clarify mdbx_filesync().

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Change-Id: I39029a52fd44c81901aff6114a5c58a62b92098b
This commit is contained in:
Leo Yuriev 2017-07-26 12:18:17 +03:00
parent 1f7f3af16c
commit 1b09605a06
1 changed files with 4 additions and 4 deletions
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8
src/osal.c
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@ -621,9 +621,9 @@ int mdbx_write(mdbx_filehandle_t fd, const void *buf, size_t bytes) {
}
}
int mdbx_filesync(mdbx_filehandle_t fd, bool fullsync) {
int mdbx_filesync(mdbx_filehandle_t fd, bool filesize_changed) {
#if defined(_WIN32) || defined(_WIN64)
(void)fullsync;
(void)filesize_changed;
return FlushFileBuffers(fd) ? MDBX_SUCCESS : GetLastError();
#elif __GLIBC_PREREQ(2, 16) || _BSD_SOURCE || _XOPEN_SOURCE || \
(__GLIBC_PREREQ(2, 8) && _POSIX_C_SOURCE >= 200112L)
@ -640,10 +640,10 @@ int mdbx_filesync(mdbx_filehandle_t fd, bool fullsync) {
* see http://www.spinics.net/lists/linux-ext4/msg33714.html */
#if _POSIX_C_SOURCE >= 199309L || _XOPEN_SOURCE >= 500 || \
defined(_POSIX_SYNCHRONIZED_IO)
if (!fullsync && fdatasync(fd) == 0)
if (!filesize_changed && fdatasync(fd) == 0)
return MDBX_SUCCESS;
#else
(void)fullsync;
(void)filesize_changed;
#endif
if (fsync(fd) == 0)
return MDBX_SUCCESS;