#include <unistd.h>
#include <string.h>
#include <zip.h>
-#include "sigrok.h"
+#include <glib.h>
+#include <sigrok.h>
+#include <config.h>
-/* there can only be one session at a time */
+
+/* There can only be one session at a time. */
struct session *session;
+int num_sources = 0;
+/* These live in hwplugin.c, for the frontend to override. */
+extern source_callback_add source_cb_add;
+extern source_callback_remove source_cb_remove;
+
+struct source {
+ int fd;
+ int events;
+ int timeout;
+ receive_data_callback cb;
+ void *user_data;
+};
+
+struct source *sources = NULL;
+int source_timeout = -1;
+
+
struct session *session_load(const char *filename)
{
struct session *session;
- /* TODO: implement */
- session = NULL;
-
- /* QUICK HACK */
+ /* Avoid compiler warnings. */
filename = filename;
+ /* TODO: Implement. */
+ session = NULL;
+
return session;
}
-
struct session *session_new(void)
{
-
session = calloc(1, sizeof(struct session));
return session;
}
-
void 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)
{
-
g_slist_free(session->devices);
session->devices = NULL;
-
}
-
int session_device_add(struct 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->open) {
+ ret = device->plugin->open(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)
{
-
- /* 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)
{
-
session->analyzers = g_slist_append(session->analyzers, an);
-
}
-
void session_datafeed_callback_clear(void)
{
-
g_slist_free(session->datafeed_callbacks);
session->datafeed_callbacks = NULL;
-
}
-
void session_datafeed_callback_add(datafeed_callback callback)
{
-
- session->datafeed_callbacks = g_slist_append(session->datafeed_callbacks, callback);
-
+ session->datafeed_callbacks =
+ g_slist_append(session->datafeed_callbacks, callback);
}
-
int session_start(void)
{
struct device *device;
GSList *l;
int ret;
- g_message("starting acquisition");
- for(l = session->devices; l; l = l->next)
- {
+ g_message("starting session");
+ 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 session_stop(void)
+void session_run(void)
{
- struct device *device;
- GSList *l;
+ GPollFD *fds, my_gpollfd;
+ int ret, i;
+
+ g_message("running session");
+ session->running = TRUE;
+ 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
+ }
- g_message("stopping acquisition");
- for(l = session->devices; l; l = l->next)
- {
- device = l->data;
- device->plugin->stop_acquisition(device->plugin_index, device);
+ 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);
}
-
-void session_bus(struct device *device, struct datafeed_packet *packet)
+void session_halt(void)
{
- GSList *l;
- datafeed_callback cb;
-
- /* TODO: send packet through PA pipe, and send the output of that to
- * the callbacks as well
- */
- for(l = session->datafeed_callbacks; l; l = l->next)
- {
- cb = l->data;
- cb(device, packet);
- }
+ g_message("halting session");
+ session->running = FALSE;
}
-
-void make_metadata(char *filename)
+void session_stop(void)
{
- GSList *l, *p;
struct device *device;
- struct probe *probe;
- FILE *f;
- int devcnt;
-
- f = fopen(filename, "wb");
-
- /* general */
+ GSList *l;
- /* devices */
- devcnt = 1;
- for(l = session->devices; l; l = l->next) {
+ g_message("stopping session");
+ session->running = FALSE;
+ 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 (device->plugin)
+ device->plugin->stop_acquisition(device->plugin_index, device);
}
- /* TODO: protocol analyzers */
+}
- fclose(f);
+void session_bus(struct device *device, struct sr_datafeed_packet *packet)
+{
+ GSList *l;
+ datafeed_callback cb;
+ /*
+ * 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) {
+ cb = l->data;
+ cb(device, packet);
+ }
}
-
int session_save(char *filename)
{
- GSList *l, *d;
+ GSList *l, *p, *d;
+ FILE *meta;
struct device *device;
+ struct probe *probe;
struct datastore *ds;
struct zip *zipfile;
- struct zip_source *src;
+ struct zip_source *versrc, *metasrc, *logicsrc;
int bufcnt, devcnt, tmpfile, ret, error;
- char version[1], rawname[16], metafile[32], *buf;
+ char version[1], rawname[16], metafile[32], *newfn, *buf;
- /* quietly delete it first, libzip wants replace ops otherwise */
- unlink(filename);
+ newfn = g_malloc(strlen(filename) + 10);
+ strcpy(newfn, filename);
+ if (strstr(filename, ".sigrok") != filename+strlen(filename)-7)
+ strcat(newfn, ".sigrok");
- if( !(zipfile = zip_open(filename, ZIP_CREATE, &error)) )
- return SIGROK_ERR;
+ /* Quietly delete it first, libzip wants replace ops otherwise. */
+ unlink(newfn);
+ if (!(zipfile = zip_open(newfn, ZIP_CREATE, &error)))
+ return SR_ERR;
+ g_free(newfn);
- /* version */
+ /* "version" */
version[0] = '1';
- if( !(src = zip_source_buffer(zipfile, version, 1, 0)) )
- return SIGROK_ERR;
- if(zip_add(zipfile, "version", src) == -1) {
- g_message("error saving version into zipfile: %s", zip_strerror(zipfile));
- return SIGROK_ERR;
+ if (!(versrc = zip_source_buffer(zipfile, version, 1, 0)))
+ return SR_ERR;
+ if (zip_add(zipfile, "version", versrc) == -1) {
+ g_message("error saving version into zipfile: %s",
+ zip_strerror(zipfile));
+ return SR_ERR;
}
- /* metadata */
+ /* init "metadata" */
strcpy(metafile, "sigrok-meta-XXXXXX");
- if( (tmpfile = g_mkstemp(metafile)) == -1)
- return SIGROK_ERR;
+ if ((tmpfile = g_mkstemp(metafile)) == -1)
+ return SR_ERR;
close(tmpfile);
- make_metadata(metafile);
- if( !(src = zip_source_file(zipfile, metafile, 0, -1)) )
- return SIGROK_ERR;
- if(zip_add(zipfile, "metadata", src) == -1)
- return SIGROK_ERR;
- unlink(metafile);
+ meta = fopen(metafile, "wb");
+ fprintf(meta, "sigrok version = %s\n", PACKAGE_VERSION);
+ /* TODO: save protocol decoders used */
- /* raw */
+ /* all datastores in all devices */
devcnt = 1;
- for(l = session->devices; l; l = l->next) {
+ for (l = session->devices; l; l = l->next) {
device = l->data;
+ /* metadata */
+ fprintf(meta, "[device]\n");
+ if (device->plugin)
+ fprintf(meta, "driver = %s\n", device->plugin->name);
+
ds = device->datastore;
- if(ds) {
- buf = malloc(ds->num_units * ds->ds_unitsize + DATASTORE_CHUNKSIZE);
+ if (ds) {
+ /* metadata */
+ fprintf(meta, "capturefile = logic-%d\n", devcnt);
+ for (p = device->probes; p; p = p->next) {
+ probe = p->data;
+ if (probe->enabled) {
+ fprintf(meta, "probe %d", probe->index);
+ if (probe->name)
+ fprintf(meta, " name \"%s\"", probe->name);
+ if (probe->trigger)
+ fprintf(meta, " trigger \"%s\"",
+ probe->trigger);
+ fprintf(meta, "\n");
+ }
+ }
+
+ /* dump datastore into logic-n */
+ 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);
+ 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_ERR;
- snprintf(rawname, 15, "raw-%d", devcnt);
- if(zip_add(zipfile, rawname, src) == -1)
- return SIGROK_ERR;
+ if (!(logicsrc = zip_source_buffer(zipfile, buf,
+ ds->num_units * ds->ds_unitsize, TRUE)))
+ return SR_ERR;
+ snprintf(rawname, 15, "logic-%d", devcnt);
+ if (zip_add(zipfile, rawname, logicsrc) == -1)
+ return SR_ERR;
}
devcnt++;
}
+ fclose(meta);
+
+ if (!(metasrc = zip_source_file(zipfile, metafile, 0, -1)))
+ return SR_ERR;
+ if (zip_add(zipfile, "metadata", metasrc) == -1)
+ return SR_ERR;
- if( (ret = zip_close(zipfile)) == -1) {
+ if ((ret = zip_close(zipfile)) == -1) {
g_message("error saving zipfile: %s", zip_strerror(zipfile));
- return SIGROK_ERR;
+ return SR_ERR;
+ }
+
+ unlink(metafile);
+
+ return SR_OK;
+}
+
+void session_source_add(int fd, int events, int timeout,
+ receive_data_callback callback, void *user_data)
+{
+ struct source *new_sources, *s;
+
+ new_sources = calloc(1, sizeof(struct source) * (num_sources + 1));
+
+ if (sources) {
+ memcpy(new_sources, sources,
+ sizeof(struct source) * num_sources);
+ free(sources);
}
- return SIGROK_OK;
+ 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;
}
+
+void session_source_remove(int fd)
+{
+ 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);
+ }
+}
+
projects / libsigrok.git / blobdiff