Added loglevel command line option

[pulseview.git] / main.cpp

diff --git a/main.cpp b/main.cpp
index e98506fcc0ea19d2d0dc2572252d3ab85748eca4..fef53247deb71820a424050f899f31f7a297f350 100644 (file)
--- a/main.cpp
+++ b/main.cpp
@@ -18,12 +18,10 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-extern "C" {
 #include <sigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
 #include <signal.h>
 #include <stdint.h>
 #include <libsigrok/libsigrok.h>
-}
 
 #include <getopt.h>
 
@@ -41,9 +39,10 @@ void usage()
 {
        fprintf(stdout,
                "Usage:\n"
-               "  %s — %s\n"
+               "  %s [OPTION…] [FILE] — %s\n"
                "\n"
                "Help Options:\n"
+               "  -l, --loglevel                  Set libsigrok/libsigrokdecode loglevel\n"
                "  -V, --version                   Show release version\n"
                "  -h, -?, --help                  Show help option\n"
                "\n", PV_BIN_NAME, PV_DESCRIPTION);
@@ -66,6 +65,7 @@ int main(int argc, char *argv[])
 {
        int ret = 0;
        struct sr_context *sr_ctx = NULL;
+       const char *open_file = NULL;
 
        // Register a SIGINT handler
        signal(SIGINT, sigint_handler);
@@ -82,17 +82,26 @@ int main(int argc, char *argv[])
        // Parse arguments
        while (1) {
                static const struct option long_options[] = {
+                       {"loglevel", required_argument, 0, 'l'},
                        {"version", no_argument, 0, 'V'},
                        {"help", no_argument, 0, 'h'},
                        {0, 0, 0, 0}
                };
 
-               const char c = getopt_long(argc, argv,
-                       "Vh?", long_options, NULL);
+               const int c = getopt_long(argc, argv,
+                       "l:Vh?", long_options, NULL);
                if (c == -1)
                        break;
 
                switch (c) {
+               case 'l':
+               {
+                       const int loglevel = atoi(optarg);
+                       sr_log_loglevel_set(loglevel);
+                       srd_log_loglevel_set(loglevel);
+                       break;
+               }
+
                case 'V':
                        // Print version info
                        fprintf(stdout, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
@@ -105,6 +114,12 @@ int main(int argc, char *argv[])
                }
        }
 
+       if (argc - optind > 1) {
+               fprintf(stderr, "Only one file can be openened.\n");
+               return 1;
+       } else if (argc - optind == 1)
+               open_file = argv[argc - 1];
+
        // Initialise libsigrok
        if (sr_init(&sr_ctx) != SR_OK) {
                qDebug() << "ERROR: libsigrok init failed.";
@@ -130,7 +145,7 @@ int main(int argc, char *argv[])
 
                if (ret == 0) {
                        // Initialise the main window
-                       pv::MainWindow w;
+                       pv::MainWindow w(open_file);
                        w.show();
 
                        // Run the application