updated context callback fn

Author: sharmag1-Gaurav

include/acl_context.h

@@ -16,6 +16,15 @@ extern "C" {
 #pragma GCC visibility push(protected)
 #endif
 
+// Constants
+static constexpr const char* ENV_CL_CONTEXT_ALLOW_MULTIPROCESSING_INTELFPGA = "CL_CONTEXT_ALLOW_MULTIPROCESSING_INTELFPGA";
+static constexpr const char* ENV_AOCL_EAGERLY_LOAD_FIRST_BINARY = "AOCL_EAGERLY_LOAD_FIRST_BINARY";
+static constexpr const char* ENV_CL_CONTEXT_COMPILER_MODE_INTELFPGA = "CL_CONTEXT_COMPILER_MODE_INTELFPGA";
+static constexpr const char* ENV_CL_CONTEXT_COMPILER_MODE_ALTERA = "CL_CONTEXT_COMPILER_MODE_ALTERA";
+static constexpr const char* ENV_CL_CONTEXT_PROGRAM_EXE_LIBRARY_ROOT_INTELFPGA = "CL_CONTEXT_PROGRAM_EXE_LIBRARY_ROOT_INTELFPGA";
+static constexpr const char* ENV_CL_CONTEXT_COMPILE_COMMAND_INTELFPGA = "CL_CONTEXT_COMPILE_COMMAND_INTELFPGA";
+static constexpr const char* ENV_ACL_CONTEXT_CALLBACK_DEBUG = "ACL_CONTEXT_CALLBACK_DEBUG";
+
 // Update data structures in response to async msgs from devices.
 // Do this as part of a waiting loop, along with acl_hal_yield().
 void acl_update_context(cl_context context);

src/acl_context.cpp

@@ -474,7 +474,7 @@ static cl_context l_create_context(const cl_context_properties *properties,
     // Blocking multiple_processing
     const char *allow_mp = NULL;
     // Check if user wants to disable the check.
-    allow_mp = acl_getenv("CL_CONTEXT_ALLOW_MULTIPROCESSING_INTELFPGA");
+    allow_mp = acl_getenv(ENV_CL_CONTEXT_ALLOW_MULTIPROCESSING_INTELFPGA);
     if (!allow_mp && platform_owner_pid != 0 &&
         platform_owner_pid != acl_get_pid()) {
       if (pfn_notify) {
@@ -565,7 +565,7 @@ static cl_int l_load_properties(cl_context context,
 
   // This one is only overridden with an environment variable.
   {
-    const char *override = acl_getenv("AOCL_EAGERLY_LOAD_FIRST_BINARY");
+    const char *override = acl_getenv(ENV_AOCL_EAGERLY_LOAD_FIRST_BINARY);
     if (override) {
       // There was a string.
       char *endptr = 0;
@@ -580,13 +580,13 @@ static cl_int l_load_properties(cl_context context,
   {
     const char *override = 0;
     const char *override_deprecated = 0;
-    override = acl_getenv("CL_CONTEXT_COMPILER_MODE_INTELFPGA");
-    override_deprecated = acl_getenv("CL_CONTEXT_COMPILER_MODE_ALTERA");
+    override = acl_getenv(ENV_CL_CONTEXT_COMPILER_MODE_INTELFPGA);
+    override_deprecated = acl_getenv(ENV_CL_CONTEXT_COMPILER_MODE_ALTERA);
     if (!override && override_deprecated) {
       override = override_deprecated;
       fprintf(stderr,
-              "Warning: CL_CONTEXT_COMPILER_MODE_ALTERA has been deprecated. "
-              "Use CL_CONTEXT_COMPILER_MODE_INTELFPGA instead.\n");
+              "Warning: %s has been deprecated. "
+              "Use %s instead.\n", ENV_CL_CONTEXT_COMPILER_MODE_ALTERA, ENV_CL_CONTEXT_COMPILER_MODE_INTELFPGA);
     }
 
     if (override) {
@@ -619,7 +619,7 @@ static cl_int l_load_properties(cl_context context,
   // If the env var is not set, then use "aocl_program_library" in the
   // current directory.
   const auto *default_root = acl_getenv(
-      "CL_CONTEXT_PROGRAM_EXE_LIBRARY_ROOT_INTELFPGA"); // this one is public,
+      ENV_CL_CONTEXT_PROGRAM_EXE_LIBRARY_ROOT_INTELFPGA); // this one is public,
                                                         // in cl_ext_intelfpga.h
   if (!default_root) {
     default_root = "aocl_program_library";
@@ -632,7 +632,7 @@ static cl_int l_load_properties(cl_context context,
   // Get user-specified compile command.
   // The default command depends on effective compiler mode, so defer
   // until later.
-  const char *default_cmd = acl_getenv("CL_CONTEXT_COMPILE_COMMAND_INTELFPGA");
+  const char *default_cmd = acl_getenv(ENV_CL_CONTEXT_COMPILE_COMMAND_INTELFPGA);
   if (default_cmd) {
     status = l_update_compile_command(context, default_cmd);
     if (status != CL_SUCCESS)
@@ -1314,6 +1314,10 @@ void acl_context_callback(cl_context context, const std::string errinfo) {
       notify_fn(errinfo.c_str(), 0, 0, notify_user_data);
     }
   }
+
+  if (context && acl_getenv(ENV_ACL_CONTEXT_CALLBACK_DEBUG)) {
+    std::cout << "[acl_context_callback] " << errinfo << std::endl;
+  }
 }
 
 // Called when runtime has been waiting for device update for a while