C++ (Cpp) pa_context_set_error Examples

Example #1

File: context.c Project: felfert/pulseaudio

void pa_context_fail(pa_context *c, int error) {
    pa_assert(c);
    pa_assert(PA_REFCNT_VALUE(c) >= 1);

    pa_context_set_error(c, error);
    pa_context_set_state(c, PA_CONTEXT_FAILED);
}

Example #2

File: ext-device-manager.c Project: Distrotech/pulseaudio

pa_operation *pa_ext_device_manager_delete(
        pa_context *c,
        const char *const s[],
        pa_context_success_cb_t cb,
        void *userdata) {

    uint32_t tag;
    pa_operation *o = NULL;
    pa_tagstruct *t = NULL;
    const char *const *k;

    pa_assert(c);
    pa_assert(PA_REFCNT_VALUE(c) >= 1);
    pa_assert(s);

    PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
    PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
    PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED);

    o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);

    t = pa_tagstruct_command(c, PA_COMMAND_EXTENSION, &tag);
    pa_tagstruct_putu32(t, PA_INVALID_INDEX);
    pa_tagstruct_puts(t, "module-device-manager");
    pa_tagstruct_putu32(t, SUBCOMMAND_DELETE);

    for (k = s; *k; k++) {
        if (!*k || !**k)
            goto fail;

        pa_tagstruct_puts(t, *k);
    }

    pa_pstream_send_tagstruct(c->pstream, t);
    pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);

    return o;

fail:
    if (o) {
        pa_operation_cancel(o);
        pa_operation_unref(o);
    }

    if (t)
        pa_tagstruct_free(t);

    pa_context_set_error(c, PA_ERR_INVALID);
    return NULL;
}

Example #3

File: context.c Project: felfert/pulseaudio

int pa_context_handle_error(pa_context *c, uint32_t command, pa_tagstruct *t, pa_bool_t fail) {
    uint32_t err;
    pa_assert(c);
    pa_assert(PA_REFCNT_VALUE(c) >= 1);

    if (command == PA_COMMAND_ERROR) {
        pa_assert(t);

        if (pa_tagstruct_getu32(t, &err) < 0 ||
            !pa_tagstruct_eof(t)) {
            pa_context_fail(c, PA_ERR_PROTOCOL);
            return -1;
        }

    } else if (command == PA_COMMAND_TIMEOUT)
        err = PA_ERR_TIMEOUT;
    else {
        pa_context_fail(c, PA_ERR_PROTOCOL);
        return -1;
    }

    if (err == PA_OK) {
        pa_context_fail(c, PA_ERR_PROTOCOL);
        return -1;
    }

    if (err >= PA_ERR_MAX)
        err = PA_ERR_UNKNOWN;

    if (fail) {
        pa_context_fail(c, (int) err);
        return -1;
    }

    pa_context_set_error(c, (int) err);

    return 0;
}

Example #4

File: ext-stream-restore.c Project: KimT/pulseaudio_kt

pa_operation *pa_ext_stream_restore_write(
        pa_context *c,
        pa_update_mode_t mode,
        const pa_ext_stream_restore_info data[],
        unsigned n,
        int apply_immediately,
        pa_context_success_cb_t cb,
        void *userdata) {

    uint32_t tag;
    pa_operation *o = NULL;
    pa_tagstruct *t = NULL;

    pa_assert(c);
    pa_assert(PA_REFCNT_VALUE(c) >= 1);
    pa_assert(mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE || mode == PA_UPDATE_SET);
    pa_assert(data);

    PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
    PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
    PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED);

    o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);

    t = pa_tagstruct_command(c, PA_COMMAND_EXTENSION, &tag);
    pa_tagstruct_putu32(t, PA_INVALID_INDEX);
    pa_tagstruct_puts(t, "module-stream-restore");
    pa_tagstruct_putu32(t, SUBCOMMAND_WRITE);

    pa_tagstruct_putu32(t, mode);
    pa_tagstruct_put_boolean(t, apply_immediately);

    for (; n > 0; n--, data++) {
        if (!data->name || !*data->name)
            goto fail;

        pa_tagstruct_puts(t, data->name);

        if (data->volume.channels > 0 &&
            !pa_cvolume_compatible_with_channel_map(&data->volume, &data->channel_map))
            goto fail;

        pa_tagstruct_put_channel_map(t, &data->channel_map);
        pa_tagstruct_put_cvolume(t, &data->volume);
        pa_tagstruct_puts(t, data->device);
        pa_tagstruct_put_boolean(t, data->mute);
    }

    pa_pstream_send_tagstruct(c->pstream, t);
    pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);

    return o;

fail:
    pa_operation_cancel(o);
    pa_operation_unref(o);

    pa_tagstruct_free(t);

    pa_context_set_error(c, PA_ERR_INVALID);
    return NULL;
}