Constify a lot more items.

[libsigrok.git] / src / backend.c

diff --git a/src/backend.c b/src/backend.c
index b05e8d97a5bf7e817a33fbf741be642127d3b7c7..5be826abaa8352d8314f4ef1128e601dde270838 100644 (file)
--- a/src/backend.c
+++ b/src/backend.c
@@ -18,9 +18,9 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include <glib.h>
-#include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */
-#include "libsigrok.h"
+#include <libsigrok/libsigrok.h>
 #include "libsigrok-internal.h"
 
 /** @cond PRIVATE */
@@ -79,10 +79,10 @@
  *
  * Initializing and shutting down libsigrok.
  *
- * Before using any of the libsigrok functionality (except
- * sr_log_loglevel_set() and sr_log_opts_set()), sr_init() must
- * be called to initialize the library, which will return a struct sr_context
- * when the initialization was successful.
+ * Before using any of the libsigrok functionality (except for
+ * sr_log_loglevel_set()), sr_init() must be called to initialize the
+ * library, which will return a struct sr_context when the initialization
+ * was successful.
  *
  * When libsigrok functionality is no longer needed, sr_exit() should be
  * called, which will (among other things) free the struct sr_context.
@@ -119,6 +119,87 @@
  * @{
  */
 
+static void print_versions(void)
+{
+       GString *s;
+#if defined(HAVE_LIBUSB_1_0) && !defined(__FreeBSD__)
+       const struct libusb_version *lv;
+#endif
+
+       s = g_string_sized_new(200);
+
+       sr_dbg("libsigrok %s/%s (rt: %s/%s).",
+               SR_PACKAGE_VERSION_STRING, SR_LIB_VERSION_STRING,
+               sr_package_version_string_get(), sr_lib_version_string_get());
+
+       g_string_append(s, "Libs: ");
+       g_string_append_printf(s, "glib %d.%d.%d (rt: %d.%d.%d/%d:%d), ",
+               GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION,
+               glib_major_version, glib_minor_version, glib_micro_version,
+               glib_binary_age, glib_interface_age);
+       g_string_append_printf(s, "libzip %s, ", CONF_LIBZIP_VERSION);
+#ifdef HAVE_LIBSERIALPORT
+       g_string_append_printf(s, "libserialport %s/%s (rt: %s/%s), ",
+               SP_PACKAGE_VERSION_STRING, SP_LIB_VERSION_STRING,
+               sp_get_package_version_string(), sp_get_lib_version_string());
+#endif
+#ifdef HAVE_LIBUSB_1_0
+#ifdef __FreeBSD__
+       g_string_append_printf(s, "libusb-1.0 %s, ", CONF_LIBUSB_1_0_VERSION);
+#else
+       lv = libusb_get_version();
+       g_string_append_printf(s, "libusb-1.0 %d.%d.%d.%d%s, ",
+               lv->major, lv->minor, lv->micro, lv->nano, lv->rc);
+#endif
+#endif
+#ifdef HAVE_LIBFTDI
+       g_string_append_printf(s, "libftdi %s, ", CONF_LIBFTDI_VERSION);
+#endif
+#ifdef HAVE_LIBGPIB
+       g_string_append_printf(s, "libgpib %s, ", CONF_LIBGPIB_VERSION);
+#endif
+#ifdef HAVE_LIBREVISA
+       g_string_append_printf(s, "librevisa %s, ", CONF_LIBREVISA_VERSION);
+#endif
+       s->str[s->len - 2] = '.';
+       s->str[s->len - 1] = '\0';
+       sr_dbg("%s", s->str);
+
+       s = g_string_truncate(s, 0);
+       g_string_append_printf(s, "Host: %s, ", CONF_HOST);
+#ifdef WORDS_BIGENDIAN
+       g_string_append_printf(s, "big-endian.");
+#else
+       g_string_append_printf(s, "little-endian.");
+#endif
+       sr_dbg("%s", s->str);
+
+       s = g_string_truncate(s, 0);
+       g_string_append_printf(s, "SCPI backends: ");
+
+       g_string_append_printf(s, "TCP, ");
+#if HAVE_RPC
+       g_string_append_printf(s, "RPC, ");
+#endif
+#ifdef HAVE_LIBSERIALPORT
+       g_string_append_printf(s, "serial, ");
+#endif
+#ifdef HAVE_LIBREVISA
+       g_string_append_printf(s, "VISA, ");
+#endif
+#ifdef HAVE_LIBGPIB
+       g_string_append_printf(s, "GPIB, ");
+#endif
+#ifdef HAVE_LIBUSB_1_0
+       g_string_append_printf(s, "USBTMC, ");
+#endif
+       s->str[s->len - 2] = '.';
+       s->str[s->len - 1] = '\0';
+       sr_dbg("%s", s->str);
+
+       g_string_free(s, TRUE);
+}
+
 /**
  * Sanity-check all libsigrok drivers.
  *
@@ -384,6 +465,8 @@ SR_API int sr_init(struct sr_context **ctx)
        struct sr_dev_driver ***lists, **drivers;
        GArray *array;
 
+       print_versions();
+
        if (!ctx) {
                sr_err("%s(): libsigrok context was NULL.", __func__);
                return SR_ERR;
@@ -427,12 +510,15 @@ SR_API int sr_init(struct sr_context **ctx)
                goto done;
        }
 #endif
+       sr_resource_set_hooks(context, NULL, NULL, NULL, NULL);
 
        *ctx = context;
        context = NULL;
        ret = SR_OK;
 
+#ifdef HAVE_LIBUSB_1_0
 done:
+#endif
        g_free(context);
        return ret;
 }