[Intel-gfx] [PATCH i-g-t] overlay/intel-gpu-overlay

[marius . c . vlad]

From: Marius Vlad <marius.c.v...@intel.com>

Use sigaction() instead of signal() and add SIGINT, SIGTERM to close
the overlay window. With this change the overlay window will be
destroyed.

Signed-off-by: Marius Vlad <marius.c.v...@intel.com>
---
 overlay/overlay.c | 42 ++++++++++++++++++++++++++++++++++++------
 1 file changed, 36 insertions(+), 6 deletions(-)

diff --git a/overlay/overlay.c b/overlay/overlay.c
index 3c0dbb4..48ba67c 100644
--- a/overlay/overlay.c
+++ b/overlay/overlay.c
@@ -804,11 +804,19 @@ static void show_gem_objects(struct overlay_context *ctx, 
struct overlay_gem_obj
 
 static int take_snapshot;
 
-static void signal_snapshot(int sig)
+static void
+signal_snapshot(int sig, siginfo_t *si, void *__unused)
 {
        take_snapshot = sig;
 }
 
+static void
+signal_x11_destroy(int sig, siginfo_t *si, void *__unused)
+{
+       x11_overlay_stop();
+       exit(EXIT_SUCCESS);
+}
+
 static int get_sample_period(struct config *config)
 {
        const char *value;
@@ -854,6 +862,7 @@ int main(int argc, char **argv)
        };
        struct overlay_context ctx;
        struct config config;
+       struct sigaction sa;
        int index, sample_period;
        int daemonize = 1, renice = 0;
        int i;
@@ -898,14 +907,22 @@ int main(int argc, char **argv)
        ctx.width = 640;
        ctx.height = 236;
        ctx.surface = NULL;
-       if (ctx.surface == NULL)
+
+       if (ctx.surface == NULL) {
                ctx.surface = x11_overlay_create(&config, &ctx.width, 
&ctx.height);
-       if (ctx.surface == NULL)
+       }
+       if (ctx.surface == NULL) {
+               fprintf(stderr, "Failed to create X11 overlay.\n");
                ctx.surface = x11_window_create(&config, &ctx.width, 
&ctx.height);
-       if (ctx.surface == NULL)
+       }
+       if (ctx.surface == NULL) {
+               fprintf(stderr, "Failed to create X11 window.\n");
                ctx.surface = kms_overlay_create(&config, &ctx.width, 
&ctx.height);
-       if (ctx.surface == NULL)
+       }
+       if (ctx.surface == NULL) {
+               fprintf(stderr, "Failed to create KMS overlay.\n");
                return ENXIO;
+       }
 
        if (daemonize && daemon(0, 0))
                return EINVAL;
@@ -913,7 +930,20 @@ int main(int argc, char **argv)
        if (renice && (nice(renice) == -1))
                fprintf(stderr, "Could not renice: %s\n", strerror(errno));
 
-       signal(SIGUSR1, signal_snapshot);
+       sa.sa_flags = SA_SIGINFO;
+       sigemptyset(&sa.sa_mask);
+       sa.sa_sigaction = &signal_snapshot;
+
+       if (sigaction(SIGUSR1, &sa, NULL) == -1) {
+               x11_overlay_stop();
+               return EXIT_FAILURE;
+       }
+
+       sa.sa_sigaction = &signal_x11_destroy;
+       if (sigaction(SIGINT | SIGTERM, &sa, NULL) == -1) {
+               x11_overlay_stop();
+               return EXIT_FAILURE;
+       }
 
        debugfs_init();
 
-- 
2.6.2

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