diff options
Diffstat (limited to 'libcoopgamma_set_gamma_sync.c')
-rw-r--r-- | libcoopgamma_set_gamma_sync.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/libcoopgamma_set_gamma_sync.c b/libcoopgamma_set_gamma_sync.c new file mode 100644 index 0000000..b682378 --- /dev/null +++ b/libcoopgamma_set_gamma_sync.c @@ -0,0 +1,26 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + + +/** + * Apply, update, or remove a gamma ramp adjustment, synchronous version + * + * This is a synchronous request function, as such, + * you have to ensure that communication is blocking + * (default), and that there are not asynchronous + * requests waiting, it also means that EINTR:s are + * silently ignored and there no wait to cancel the + * operation without disconnection from the server + * + * @param filter The filter to apply, update, or remove, gamma ramp meta-data must match the CRTC's + * @param depth The datatype for the stops in the gamma ramps, must match the CRTC's + * @param ctx The state of the library, must be connected + * @return Zero on success, -1 on error, in which case `ctx->error` + * (rather than `errno`) is read for information about the error + */ +int +libcoopgamma_set_gamma_sync(const libcoopgamma_filter_t *restrict filter, libcoopgamma_context_t *restrict ctx) +{ + SYNC_CALL(libcoopgamma_set_gamma_send(filter, ctx, &async), + libcoopgamma_set_gamma_recv(ctx, &async), (copy_errno(ctx), -1)); +} |