mg2d: add a context variable to control the log level

Simpler to use than overriding the log callback.

API bump.

1 files changed, 3 insertions, 0 deletions

diff --git a/mg2d.c b/mg2d.c
index 6b94def..886ef27 100644
--- a/mg2d.c
+++ b/mg2d.c
@@ -570,6 +570,8 @@ static int mg_levels_alloc(MG2DContext *ctx, size_t domain_size)
 
 static void log_default_callback(const MG2DContext *ctx, int level, const char *fmt, va_list vl)
 {
+    if (level > ctx->log_level)
+        return;
     vfprintf(stderr, fmt, vl);
 }
 
@@ -623,6 +625,7 @@ MG2DContext *mg2d_solver_alloc(size_t domain_size)
     ctx->nb_relax_pre  = 1;
     ctx->nb_relax_post = 1;
     ctx->log_callback  = log_default_callback;
+    ctx->log_level     = MG2D_LOG_INFO;
     ctx->nb_threads    = 1;
 
     ctx->u          = priv->root->solver->u;