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authorVasil Dimov <vd@FreeBSD.org>2020-03-26 10:59:46 +0100
committerVasil Dimov <vd@FreeBSD.org>2020-04-14 09:49:45 +0200
commit182dbdf0f4b6e6484b0d4588aaefacc75862a99c (patch)
tree4e4a612a329ed8a3af42bb789c824474cf678ec5 /src/util/system.cpp
parent7eed413e72a236b6f1475a198f7063fd24929e23 (diff)
downloadbitcoin-182dbdf0f4b6e6484b0d4588aaefacc75862a99c.tar.xz
util: Detect posix_fallocate() instead of assuming
Don't assume that `posix_fallocate()` is available on Linux and not available on other operating systems. At least FreeBSD has it and we are not using it. Properly check whether `posix_fallocate()` is present and use it if it is.
Diffstat (limited to 'src/util/system.cpp')
-rw-r--r--src/util/system.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/util/system.cpp b/src/util/system.cpp
index b0a538b527..b4df0680af 100644
--- a/src/util/system.cpp
+++ b/src/util/system.cpp
@@ -17,7 +17,7 @@
#endif
#ifndef WIN32
-// for posix_fallocate
+// for posix_fallocate, in configure.ac we check if it is present after this
#ifdef __linux__
#ifdef _POSIX_C_SOURCE
@@ -1012,7 +1012,7 @@ void AllocateFileRange(FILE *file, unsigned int offset, unsigned int length) {
}
ftruncate(fileno(file), static_cast<off_t>(offset) + length);
#else
- #if defined(__linux__)
+ #if defined(HAVE_POSIX_FALLOCATE)
// Version using posix_fallocate
off_t nEndPos = (off_t)offset + length;
if (0 == posix_fallocate(fileno(file), 0, nEndPos)) return;