pyrite-dev/milsko
pyrite-dev/milsko
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show an actual error if we ever run out of FDs (thanks rob pike)
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IoIxD 2026-09-25 13:02:34 -07:00
commit 6de65dfe87
1 changed files with 8 additions and 4 deletions
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12
src/backend/wayland/buffer.c
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@ -55,24 +55,28 @@ void MwLLWaylandBackbufferDestroy(struct _MwLLWayland* wayland) {
void MwLLWaylandBufferSetup(struct _MwLLWaylandShmBuffer* buffer, MwU32 width, MwU32 height) { void MwLLWaylandBufferSetup(struct _MwLLWaylandShmBuffer* buffer, MwU32 width, MwU32 height) {
int stride = width * 4; int stride = width * 4;
char temp_name[] = "/tmp/milsko-wl-shm-XXXXXX"; char temp_name[] = "/tmp/milsko-wl-shm-XXXXXXXX";
char temp_name_back[] = "/tmp/milsko-wl-shm-back-XXXXXX"; char temp_name_back[] = "/tmp/milsko-wl-shm-back-XXXXXXXX";
buffer->buf_size = width * height * 4; buffer->buf_size = width * height * 4;
buffer->fd = mkstemp(temp_name); buffer->fd = mkstemp(temp_name);
buffer->fd_back = mkstemp(temp_name_back); buffer->fd_back = mkstemp(temp_name_back);
if(buffer->fd >= FD_SETSIZE - 1) {
MwDispatchError(-1, "Amount of allocated buffers has reached FD_SETSIZE! Cannot continue.\n");
return;
}
unlink(temp_name); unlink(temp_name);
unlink(temp_name_back); unlink(temp_name_back);
if(posix_fallocate(buffer->fd, 0, buffer->buf_size) != 0) { if(posix_fallocate(buffer->fd, 0, buffer->buf_size) != 0) {
printf("failure setting up wl_shm: could not fallocate. %s.\n", strerror(errno)); printf("failure setting up wl_shm (front buf): could not fallocate. %s.\n", strerror(errno));
close(buffer->fd); close(buffer->fd);
return; return;
} }
if(posix_fallocate(buffer->fd_back, 0, buffer->buf_size) != 0) { if(posix_fallocate(buffer->fd_back, 0, buffer->buf_size) != 0) {
printf("failure setting up wl_shm: could not fallocate. %s.\n", strerror(errno)); printf("failure setting up wl_shm (back buf): could not fallocate. %s.\n", strerror(errno));
close(buffer->fd_back); close(buffer->fd_back);
return; return;
} }