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make allocate_shm_file() portable across systems #8

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make allocate_shm_file() portable across systems #8

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9 changes: 9 additions & 0 deletions dtao.c
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Original file line number Diff line number Diff line change
Expand Up @@ -92,7 +92,16 @@ static const struct wl_buffer_listener wl_buffer_listener = {
static int
allocate_shm_file(size_t size)
{
#if defined(__linux__)
int fd = memfd_create("surface", MFD_CLOEXEC);
#elif defined(__FreeBSD__)
int fd = shm_open(SHM_ANON, O_RDWR | O_CLOEXEC, 0600);
#else
char name[] = "/tmp/dtao-shm-buffer-XXXXXX";
int fd = mkostemp(name, O_CLOEXEC);
unlink(name);
#endif

if (fd < 0)
return -1;
int ret;
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