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util: make use of kcmp() to compare fds, if it is available
[elogind.git]
/
src
/
shared
/
missing.h
diff --git
a/src/shared/missing.h
b/src/shared/missing.h
index 5cf179ef00e74c515d4081b9183a4008b7aa4cd0..cdc38b2dd8945850b9b316c29eabe9af0a176391 100644
(file)
--- a/
src/shared/missing.h
+++ b/
src/shared/missing.h
@@
-711,3
+711,13
@@
static inline int renameat2(int oldfd, const char *oldname, int newfd, const cha
#ifndef RENAME_NOREPLACE
#define RENAME_NOREPLACE (1 << 0)
#endif
#ifndef RENAME_NOREPLACE
#define RENAME_NOREPLACE (1 << 0)
#endif
+
+#if !HAVE_DECL_KCMP
+static inline int kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) {
+ return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2);
+}
+#endif
+
+#ifndef KCMP_FILE
+#define KCMP_FILE 0
+#endif