tags 697015 + patch
notfixed 697015 2.0.1-5
--
Hi.
Accroding to
http://pubs.opengroup.org/onlinepubs/9699919799/functions/posix_fadvise.html
"The posix_fadvise() function is part of the Advisory Information option
and need not be provided on all implementations."
Please guard usage by POSIX_FADV_WILLNEED, not by POSIX version.
Petr
--- Tuvok/Basics/LargeFileFD.cpp
+++ Tuvok/Basics/LargeFileFD.cpp
@@ -75,7 +75,7 @@
if(lseek(this->fd, offset+this->header_size, SEEK_SET) < 0) {
throw std::ios_base::failure("could not seek to correct file position.");
}
-#if _POSIX_C_SOURCE >= 200112L
+#ifdef POSIX_FADV_WILLNEED
posix_fadvise(this->fd, offset+this->header_size, len, POSIX_FADV_WILLNEED);
#endif
@@ -126,7 +126,7 @@
void LargeFileFD::enqueue(uint64_t offset, size_t len)
{
if(len == 0) { return; }
-#if _POSIX_C_SOURCE >= 200112L
+#ifdef POSIX_FADV_WILLNEED
int adv = posix_fadvise(this->fd, offset, len, POSIX_FADV_WILLNEED);
// this should basically always succeed. the only way it can fail is if we
// gave it a bogus FD or something. if that's the case, that points to
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