From: Waldemar Kozaczuk <jwkozac...@gmail.com>
Committer: Waldemar Kozaczuk <jwkozac...@gmail.com>
Branch: master
add another C-wrapper: osv_run_app()
In preparation to support building and running ZFS images on
the kernel built with most symbols hidden, this patch adds new
C function - osv_run_app() - that wraps code to run an arbitrary app.
This will allow an application like mkfs.so to be changed to not have to depend
on C++ symbols like osv::run() from OSv kernel.
Refs #1186
Signed-off-by: Waldemar Kozaczuk <jwkozac...@gmail.com>
---
diff --git a/core/osv_c_wrappers.cc b/core/osv_c_wrappers.cc
--- a/core/osv_c_wrappers.cc
+++ b/core/osv_c_wrappers.cc
@@ -143,6 +143,15 @@ void osv_current_app_on_termination_request(void
(*handler)()) {
osv::this_application::on_termination_request(handler);
}
+extern "C" OSV_MODULE_API
+int osv_run_app(const char *app_path, const char *args[], int args_len) {
+ int ret;
+ std::vector<std::string> _args(args, args + args_len);
+ auto ok = run(app_path, _args, &ret);
+ assert(ok);
+ return ret;
+}
+
extern bool verbose;
extern "C" OSV_MODULE_API
bool osv_debug_enabled() {
diff --git a/exported_symbols/osv_module_api.symbols
b/exported_symbols/osv_module_api.symbols
--- a/exported_symbols/osv_module_api.symbols
+++ b/exported_symbols/osv_module_api.symbols
@@ -7,4 +7,5 @@ osv_get_all_app_threads
osv_get_all_threads
osv_hypervisor_name
osv_processor_features
+osv_run_app
osv_version
diff --git a/include/osv/osv_c_wrappers.h b/include/osv/osv_c_wrappers.h
--- a/include/osv/osv_c_wrappers.h
+++ b/include/osv/osv_c_wrappers.h
@@ -127,6 +127,11 @@ bool osv_debug_enabled();
*/
void osv_current_app_on_termination_request(void (*handler)());
+/*
+ * Start an app and wait until it terminates
+ */
+int osv_run_app(const char *app_path, const char *args[], int args_len);
+
#ifdef __cplusplus
}
#endif
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