feat: Make shutdown timeout customizable (#577)

Co-authored-by: Andrei Muraru <andrei.muraru@avira.com>

include/sentry.h

@@ -1006,6 +1006,19 @@ SENTRY_API void sentry_options_set_database_pathw(
 SENTRY_API void sentry_options_set_system_crash_reporter_enabled(
     sentry_options_t *opts, int enabled);
 
+/**
+ * Sets the maximum time (in milliseconds) to wait for the asynchronous tasks to
+ * end on shutdown, before attempting a forced termination.
+ */
+SENTRY_API void sentry_options_set_shutdown_timeout(
+    sentry_options_t *opts, uint64_t shutdown_timeout);
+
+/**
+ * Gets the maximum time (in milliseconds) to wait for the asynchronous tasks to
+ * end on shutdown, before attempting a forced termination.
+ */
+SENTRY_API uint64_t sentry_options_get_shutdown_timeout(sentry_options_t *opts);
+
 /* -- Global APIs -- */
 
 /**

src/sentry_core.c

@@ -213,9 +213,8 @@ sentry_close(void)
         }
 
         if (options->transport) {
-            // TODO: make this configurable
             if (sentry__transport_shutdown(
-                    options->transport, SENTRY_DEFAULT_SHUTDOWN_TIMEOUT)
+                    options->transport, options->shutdown_timeout)
                 != 0) {
                 SENTRY_WARN("transport did not shut down cleanly");
             }

src/sentry_options.c

@@ -47,6 +47,7 @@ sentry_options_new(void)
     opts->transport = sentry__transport_new_default();
     opts->sample_rate = 1.0;
     opts->refcount = 1;
+    opts->shutdown_timeout = SENTRY_DEFAULT_SHUTDOWN_TIMEOUT;
     return opts;
 }
 
@@ -297,6 +298,19 @@ sentry_options_set_system_crash_reporter_enabled(
     opts->system_crash_reporter_enabled = !!enabled;
 }
 
+void
+sentry_options_set_shutdown_timeout(
+    sentry_options_t *opts, uint64_t shutdown_timeout)
+{
+    opts->shutdown_timeout = shutdown_timeout;
+}
+
+uint64_t
+sentry_options_get_shutdown_timeout(sentry_options_t *opts)
+{
+    return opts->shutdown_timeout;
+}
+
 static void
 add_attachment(sentry_options_t *opts, sentry_path_t *path)
 {

src/sentry_options.h

@@ -62,6 +62,7 @@ typedef struct sentry_options_s {
 
     long user_consent;
     long refcount;
+    uint64_t shutdown_timeout;
 } sentry_options_t;
 
 /**