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changes requested by code review

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This commit is contained in:
Alexander Sieg 2020-05-07 22:40:57 +02:00
parent a8da30c437
commit 39e226e923
7 changed files with 16 additions and 25 deletions
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18
shm.c
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@ -53,9 +53,7 @@ static off_t max_pool_size = 512 * 1024 * 1024;
static tll(struct buffer) buffers;
static bool can_punch_hole = false;
#ifdef __linux__
static bool can_punch_hole_initialized = false;
#endif
#undef MEASURE_SHM_ALLOCS
#if defined(MEASURE_SHM_ALLOCS)
@ -280,9 +278,11 @@ shm_get_buffer(struct wl_shm *shm, int width, int height, unsigned long cookie,
goto err;
}
#ifdef __linux__
if (!can_punch_hole_initialized) {
can_punch_hole_initialized = true;
#ifdef __FreeBSD__
can_punch_hole = false;
#else
can_punch_hole = fallocate(
pool_fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 1) == 0;
@ -291,10 +291,8 @@ shm_get_buffer(struct wl_shm *shm, int width, int height, unsigned long cookie,
"fallocate(FALLOC_FL_PUNCH_HOLE) not "
"supported (%s): expect lower performance", strerror(errno));
}
}
#elif __FreeBSD__
can_punch_hole = false;
#endif
}
if (scrollable && !can_punch_hole) {
initial_offset = 0;
@ -395,7 +393,7 @@ shm_can_scroll(const struct buffer *buf)
#endif
}
#ifdef __linux__
#ifndef __FreeBSD__
static bool
wrap_buffer(struct wl_shm *shm, struct buffer *buf, off_t new_offset)
{
@ -432,7 +430,7 @@ wrap_buffer(struct wl_shm *shm, struct buffer *buf, off_t new_offset)
}
#endif
#ifdef __linux__
#ifndef __FreeBSD__
static bool
shm_scroll_forward(struct wl_shm *shm, struct buffer *buf, int rows,
int top_margin, int top_keep_rows,
@ -538,7 +536,7 @@ err:
}
#endif
#ifdef __linux__
#ifndef __FreeBSD__
static bool
shm_scroll_reverse(struct wl_shm *shm, struct buffer *buf, int rows,
int top_margin, int top_keep_rows,
@ -641,7 +639,7 @@ shm_scroll(struct wl_shm *shm, struct buffer *buf, int rows,
{
#ifdef __FreeBSD__
return false;
#elif __linux__
#else
if (!shm_can_scroll(buf))
return false;