Linux doesn't support the Linux idiom of using lseek and a write to set
the size of a file, instead use ftruncate to accomplish the same effect.
This change is taken from the Nanoteq VPP port commit:
https://github.com/ftk-ntq/vpp/commit/
04a1b19b37e791accc61b91f3f413d8bc8b1ff8f
Type: improvement
Change-Id: Ie0b83e751b8b8f20b6814e5c9f760035747dfad9
Signed-off-by: Tom Jones <thj@freebsd.org>
int svm_fd;
svm_region_t *rp;
int deadman = 0;
- u8 junk = 0;
void *oldheap;
int rv;
int pid_holding_region_lock;
vec_free (shm_name);
+#ifdef __FreeBSD__
+ if (ftruncate (svm_fd, a->size) < 0)
+ {
+ clib_warning ("ftruncate region size");
+ close (svm_fd);
+ return (0);
+ }
+#else
+ u8 junk = 0;
if (lseek (svm_fd, a->size, SEEK_SET) == (off_t) - 1)
{
clib_warning ("seek region size");
close (svm_fd);
return (0);
}
+#endif /* __FreeBSD__ */
rp = mmap (uword_to_pointer (a->baseva, void *), a->size,
PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, svm_fd, 0);