* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
-#include <zip.h>
-#include "sigrok.h"
+#include <glib.h>
+#include <sigrok.h>
+#include <sigrok-internal.h>
-/* there can only be one session at a time */
-struct session *session;
+/* demo.c */
+extern GIOChannel channels[2];
+struct source {
+ int fd;
+ int events;
+ int timeout;
+ sr_receive_data_callback cb;
+ void *user_data;
+};
-struct session *session_load(char *filename)
-{
- struct session *session;
+/* There can only be one session at a time. */
+struct sr_session *session;
+int num_sources = 0;
- /* TODO: implement */
- session = NULL;
+struct source *sources = NULL;
+int source_timeout = -1;
- return session;
-}
-
-struct session *session_new(void)
+struct sr_session *sr_session_new(void)
{
-
- session = calloc(1, sizeof(struct session));
+ session = calloc(1, sizeof(struct sr_session));
return session;
}
-
-void session_destroy(void)
+void sr_session_destroy(void)
{
g_slist_free(session->devices);
- /* TODO: loop over protocols and free them */
+ /* TODO: Loop over protocol decoders and free them. */
g_free(session);
-
}
-
-void session_device_clear(void)
+void sr_session_device_clear(void)
{
-
g_slist_free(session->devices);
session->devices = NULL;
-
}
-
-int session_device_add(struct device *device)
+int sr_session_device_add(struct sr_device *device)
{
int ret;
- ret = device->plugin->open(device->plugin_index);
- if(ret == SIGROK_OK)
- session->devices = g_slist_append(session->devices, device);
+ if (device->plugin && device->plugin->opendev) {
+ ret = device->plugin->opendev(device->plugin_index);
+ if (ret != SR_OK)
+ return ret;
+ }
- return ret;
-}
+ session->devices = g_slist_append(session->devices, device);
+ return SR_OK;
+}
-void session_pa_clear(void)
+#if 0
+void sr_session_pa_clear(void)
{
-
- /* the protocols are pointers to the global set of PA plugins, so don't free them */
+ /*
+ * The protocols are pointers to the global set of PA plugins,
+ * so don't free them.
+ */
g_slist_free(session->analyzers);
session->analyzers = NULL;
-
}
-
-void session_pa_add(struct analyzer *an)
+void sr_session_pa_add(struct sr_analyzer *an)
{
-
session->analyzers = g_slist_append(session->analyzers, an);
-
}
+#endif
-
-void session_datafeed_callback_clear(void)
+void sr_session_datafeed_callback_clear(void)
{
-
g_slist_free(session->datafeed_callbacks);
session->datafeed_callbacks = NULL;
-
}
+void sr_session_datafeed_callback_add(sr_datafeed_callback callback)
+{
+ session->datafeed_callbacks =
+ g_slist_append(session->datafeed_callbacks, callback);
+}
-void session_datafeed_callback_add(datafeed_callback callback)
+static void sr_session_run_poll()
{
+ GPollFD *fds, my_gpollfd;
+ int ret, i;
+
+ fds = NULL;
+ while (session->running) {
+ if (fds)
+ free(fds);
+
+ /* Construct g_poll()'s array. */
+ fds = malloc(sizeof(GPollFD) * num_sources);
+ for (i = 0; i < num_sources; i++) {
+#ifdef _WIN32
+ g_io_channel_win32_make_pollfd(&channels[0],
+ sources[i].events, &my_gpollfd);
+#else
+ my_gpollfd.fd = sources[i].fd;
+ my_gpollfd.events = sources[i].events;
+ fds[i] = my_gpollfd;
+#endif
+ }
- session->datafeed_callbacks = g_slist_append(session->datafeed_callbacks, callback);
+ ret = g_poll(fds, num_sources, source_timeout);
+
+ for (i = 0; i < num_sources; i++) {
+ if (fds[i].revents > 0 || (ret == 0
+ && source_timeout == sources[i].timeout)) {
+ /*
+ * Invoke the source's callback on an event,
+ * or if the poll timeout out and this source
+ * asked for that timeout.
+ */
+ sources[i].cb(fds[i].fd, fds[i].revents,
+ sources[i].user_data);
+ }
+ }
+ }
+ free(fds);
}
-
-int session_start(void)
+int sr_session_start(void)
{
- struct device *device;
+ struct sr_device *device;
GSList *l;
int ret;
- g_message("starting acquisition");
- for(l = session->devices; l; l = l->next)
- {
+ sr_info("session: starting");
+ for (l = session->devices; l; l = l->next) {
device = l->data;
- if( (ret = device->plugin->start_acquisition(device->plugin_index, device)) != SIGROK_OK)
+ if ((ret = device->plugin->start_acquisition(
+ device->plugin_index, device)) != SR_OK)
break;
}
return ret;
}
+void sr_session_run(void)
+{
+
+ sr_info("session: running");
+ session->running = TRUE;
+
+ /* do we have real sources? */
+ if (num_sources == 1 && sources[0].fd == -1)
+ /* dummy source, freewheel over it */
+ while (session->running)
+ sources[0].cb(-1, 0, sources[0].user_data);
+ else
+ /* real sources, use g_poll() main loop */
+ sr_session_run_poll();
-void session_stop(void)
+}
+
+void sr_session_halt(void)
{
- struct device *device;
+
+ sr_info("session: halting");
+ session->running = FALSE;
+
+}
+
+void sr_session_stop(void)
+{
+ struct sr_device *device;
GSList *l;
- g_message("stopping acquisition");
- for(l = session->devices; l; l = l->next)
- {
+ sr_info("session: stopping");
+ session->running = FALSE;
+ for (l = session->devices; l; l = l->next) {
device = l->data;
- device->plugin->stop_acquisition(device->plugin_index, device);
+ if (device->plugin && device->plugin->stop_acquisition)
+ device->plugin->stop_acquisition(device->plugin_index, device);
}
}
-
-void session_bus(struct device *device, struct datafeed_packet *packet)
+void sr_session_bus(struct sr_device *device, struct sr_datafeed_packet *packet)
{
GSList *l;
- datafeed_callback cb;
+ sr_datafeed_callback cb;
- /* TODO: send packet through PA pipe, and send the output of that to
- * the callbacks as well
+ /*
+ * TODO: Send packet through PD pipe, and send the output of that to
+ * the callbacks as well.
*/
-
- for(l = session->datafeed_callbacks; l; l = l->next)
- {
+ for (l = session->datafeed_callbacks; l; l = l->next) {
cb = l->data;
cb(device, packet);
}
-
}
-
-void make_metadata(char *filename)
+void sr_session_source_add(int fd, int events, int timeout,
+ sr_receive_data_callback callback, void *user_data)
{
- GSList *l, *p;
- struct device *device;
- struct probe *probe;
- FILE *f;
- int devcnt;
+ struct source *new_sources, *s;
- f = fopen(filename, "wb");
+ new_sources = calloc(1, sizeof(struct source) * (num_sources + 1));
- /* general */
-
- /* devices */
- devcnt = 1;
- for(l = session->devices; l; l = l->next) {
- device = l->data;
- fprintf(f, "[device]\n");
- fprintf(f, "driver = %s\n", device->plugin->name);
- if(device->datastore)
- fprintf(f, "capturefile = raw-%d\n", devcnt);
- for(p = device->probes; p; p = p->next) {
- probe = p->data;
- if(probe->enabled)
- {
- fprintf(f, "probe %d", probe->index);
- if(probe->name)
- fprintf(f, " name \"%s\"", probe->name);
- if(probe->trigger)
- fprintf(f, " trigger \"%s\"", probe->trigger);
- fprintf(f, "\n");
- }
- }
- devcnt++;
+ if (sources) {
+ memcpy(new_sources, sources,
+ sizeof(struct source) * num_sources);
+ free(sources);
}
- /* TODO: protocol analyzers */
-
- fclose(f);
-
+ s = &new_sources[num_sources++];
+ s->fd = fd;
+ s->events = events;
+ s->timeout = timeout;
+ s->cb = callback;
+ s->user_data = user_data;
+ sources = new_sources;
+
+ if (timeout != source_timeout && timeout > 0
+ && (source_timeout == -1 || timeout < source_timeout))
+ source_timeout = timeout;
}
-
-int session_save(char *filename)
+void sr_session_source_remove(int fd)
{
- GSList *l, *d;
- struct device *device;
- struct datastore *ds;
- struct zip *zipfile;
- struct zip_source *src;
- int bufcnt, devcnt, tmpfile, ret, error;
- char version[1], rawname[16], metafile[32], *buf;
-
- /* quietly delete it first, libzip wants replace ops otherwise */
- unlink(filename);
-
- if( !(zipfile = zip_open(filename, ZIP_CREATE, &error)) )
- return SIGROK_NOK;
-
- /* version */
- version[0] = '1';
- if( !(src = zip_source_buffer(zipfile, version, 1, 0)) )
- return SIGROK_NOK;
- if(zip_add(zipfile, "version", src) == -1) {
- g_message("error saving version into zipfile: %s", zip_strerror(zipfile));
- return SIGROK_NOK;
- }
-
- /* metadata */
- strcpy(metafile, "sigrok-meta-XXXXXX");
- if( (tmpfile = g_mkstemp(metafile)) == -1)
- return SIGROK_NOK;
- close(tmpfile);
- make_metadata(metafile);
- if( !(src = zip_source_file(zipfile, metafile, 0, -1)) )
- return SIGROK_NOK;
- if(zip_add(zipfile, "metadata", src) == -1)
- return SIGROK_NOK;
- unlink(metafile);
-
- /* raw */
- devcnt = 1;
- for(l = session->devices; l; l = l->next) {
- device = l->data;
- ds = device->datastore;
- if(ds) {
- buf = malloc(ds->num_units * ds->ds_unitsize + DATASTORE_CHUNKSIZE);
- bufcnt = 0;
- for(d = ds->chunklist; d; d = d->next) {
- memcpy(buf + bufcnt, d->data, DATASTORE_CHUNKSIZE);
- bufcnt += DATASTORE_CHUNKSIZE;
- }
- if( !(src = zip_source_buffer(zipfile, buf, ds->num_units * ds->ds_unitsize, TRUE)) )
- return SIGROK_NOK;
- snprintf(rawname, 15, "raw-%d", devcnt);
- if(zip_add(zipfile, rawname, src) == -1)
- return SIGROK_NOK;
- }
- devcnt++;
- }
-
- if( (ret = zip_close(zipfile)) == -1) {
- g_message("error saving zipfile: %s", zip_strerror(zipfile));
- return SIGROK_NOK;
+ struct source *new_sources;
+ int old, new;
+
+ if (!sources)
+ return;
+
+ new_sources = calloc(1, sizeof(struct source) * num_sources);
+ for (old = 0; old < num_sources; old++)
+ if (sources[old].fd != fd)
+ memcpy(&new_sources[new++], &sources[old],
+ sizeof(struct source));
+
+ if (old != new) {
+ free(sources);
+ sources = new_sources;
+ num_sources--;
+ } else {
+ /* Target fd was not found. */
+ free(new_sources);
}
-
- return SIGROK_OK;
}
-
-
-
-
-
-
-
projects / libsigrok.git / blobdiff