diff options
Diffstat (limited to 'binding/iiodevices-binding.c')
| -rw-r--r-- | binding/iiodevices-binding.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/binding/iiodevices-binding.c b/binding/iiodevices-binding.c index 9b4b60d..61e43ca 100644 --- a/binding/iiodevices-binding.c +++ b/binding/iiodevices-binding.c @@ -91,7 +91,7 @@ static struct afb_event* event_add(const char *tag) /* check valid tag */ e = event_get(tag); - if (e) return NULL; + if (e) return &e->event; /* creation */ e = malloc(strlen(tag) + sizeof *e); @@ -148,8 +148,6 @@ static void init_dev(struct client_sub *client) return; } - if(!ctx) - init_context(); AFB_DEBUG("iio_context_find_device %s", client->infos->dev_name); client->dev = iio_context_find_device(ctx, client->infos->dev_name); if(!client->dev) { @@ -452,7 +450,7 @@ static uint64_t get_period(const char* freq) double frequency = 0; if(freq) frequency = strtod(freq, NULL); - return (frequency == 0) ? 0 : (uint64_t)((1.0 / frequency) * 1000000); + return (frequency <= 0) ? 0 : (uint64_t)((1.0 / frequency) * 1000000); } /*check if it is needed to create a new client: if NULL return it is needed, @@ -517,8 +515,13 @@ static struct client_sub *add_new_client(struct iio_info *infos, /*subscribe verb*/ static void subscribe(struct afb_req request) { + init_context(); const char *value = afb_req_value(request, "event"); const char *s_iioelts = afb_req_value(request, "args"); + if(!s_iioelts) { + afb_req_fail(request, "failed", "args is null"); + return; + } const char *freq = afb_req_value(request, "frequency"); if(!value || !s_iioelts) { @@ -557,10 +560,16 @@ static void subscribe(struct afb_req request) return; } init_event_io(client); + } else { + init_dev(client); } //stored client in order to be get in unsubscription afb_req_context_set(request, client, NULL); + if(!client->event) { + afb_req_fail(request, "failed", "No event found"); + return; + } if(afb_req_subscribe(request, *client->event) != 0) { afb_req_fail(request, "failed", "subscription failed"); return; @@ -577,6 +586,7 @@ static void subscribe(struct afb_req request) /*unsubscribe verb*/ static void unsubscribe(struct afb_req request) { + init_context(); const char *value = afb_req_value(request, "event"); if(!value) { afb_req_fail(request, "failed", "please, fill 'event' fields"); @@ -593,6 +603,8 @@ static void unsubscribe(struct afb_req request) if(!client) { AFB_ERROR("cannot find %s event, it seems that there was \ no subscription", value); + afb_req_fail_f(request, "failed", "cannot find %s event, it seems that there was \ + no subscription", value); return; } if(afb_req_unsubscribe(request, *client->event) != 0) { |