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param save: Add a blocking API for param saves to be used from shell.

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This commit is contained in:
Thomas Debrunner
2023-06-19 14:33:40 +02:00
committed by Beat Küng
parent 18f0311161
commit fd267fb9a5
12 changed files with 43 additions and 20 deletions
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src/lib/parameters/parameters.cpp
+9 -4
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@@ -698,14 +698,19 @@ const char *param_get_backup_file()
static int param_export_internal(int fd, param_filter_func filter);
static int param_verify(int fd);
int param_save_default()
int param_save_default(bool blocking)
{
PX4_DEBUG("param_save_default");
// take the file lock
if (pthread_mutex_trylock(&file_mutex) != 0) {
PX4_ERR("param_save_default: file lock failed (already locked)");
return PX4_ERROR;
if (blocking) {
pthread_mutex_lock(&file_mutex);
} else {
if (pthread_mutex_trylock(&file_mutex) != 0) {
PX4_DEBUG("param_save_default: file lock failed (already locked)");
return -EWOULDBLOCK;
}
}
int shutdown_lock_ret = px4_shutdown_lock();