* Copyright (C) 2020 Philippe Proulx <pproulx@efficios.com>
*/
-#ifndef TESTS_LIB_CONDS_UTILS_H
-#define TESTS_LIB_CONDS_UTILS_H
+#ifndef TESTS_LIB_CONDS_UTILS_HPP
+#define TESTS_LIB_CONDS_UTILS_HPP
-enum cond_trigger_func_type {
- COND_TRIGGER_FUNC_TYPE_BASIC,
- COND_TRIGGER_FUNC_TYPE_RUN_IN_COMP_CLS_INIT,
+#include <functional>
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include <babeltrace2/babeltrace.h>
+
+#include "cpp-common/bt2c/c-string-view.hpp"
+
+#include "../utils/run-in.hpp"
+
+/*
+ * Abstract condition trigger class.
+ *
+ * A derived class must provide operator()() which triggers a condition
+ * of which the specific type (precondition or postcondition) and ID are
+ * provided at construction time.
+ */
+class CondTrigger
+{
+public:
+ using UP = std::unique_ptr<CondTrigger>;
+
+ /*
+ * Condition type.
+ */
+ enum class Type
+ {
+ PRE,
+ POST,
+ };
+
+protected:
+ /*
+ * Builds a condition trigger having the type `type`, the condition
+ * ID `condId` (_without_ any `pre:` or `post:` prefix), and the
+ * optional name suffix `nameSuffix`.
+ *
+ * The concatenation of `condId` and, if it's set, `-` and
+ * `*nameSuffix`, forms the name of the condition trigger. Get the
+ * name of the created condition trigger with name().
+ */
+ explicit CondTrigger(Type type, const std::string& condId,
+ const bt2c::CStringView nameSuffix) noexcept;
+
+public:
+ virtual ~CondTrigger() = default;
+ virtual void operator()() noexcept = 0;
+
+ Type type() const noexcept
+ {
+ return _mType;
+ }
+
+ /*
+ * Condition ID, including any `pre:` or `post:` prefix.
+ */
+ const std::string& condId() const noexcept
+ {
+ return _mCondId;
+ }
+
+ const std::string& name() const noexcept
+ {
+ return _mName;
+ }
+
+private:
+ Type _mType;
+ std::string _mCondId;
+ std::string _mName;
};
-enum cond_trigger_type {
- COND_TRIGGER_TYPE_PRE,
- COND_TRIGGER_TYPE_POST,
+/*
+ * Simple condition trigger.
+ *
+ * Implements a condition trigger where a function provided at
+ * construction time triggers a condition.
+ */
+class SimpleCondTrigger : public CondTrigger
+{
+public:
+ explicit SimpleCondTrigger(std::function<void()> func, Type type, const std::string& condId,
+ const bt2c::CStringView nameSuffix = {});
+
+ void operator()() noexcept override
+ {
+ _mFunc();
+ }
+
+private:
+ std::function<void()> _mFunc;
};
-typedef void (* cond_trigger_basic_func)(void);
-typedef void (* cond_trigger_run_in_comp_cls_init_func)(bt_self_component *);
-
-struct cond_trigger {
- enum cond_trigger_type type;
- enum cond_trigger_func_type func_type;
- const char *cond_id;
- const char *suffix;
- union {
- cond_trigger_basic_func basic;
- cond_trigger_run_in_comp_cls_init_func run_in_comp_cls_init;
- } func;
+/*
+ * Run-in condition trigger.
+ *
+ * Implements a condition trigger of which the triggering function
+ * happens in a graph or component class query context using the
+ * runIn() API.
+ */
+template <typename RunInT>
+class RunInCondTrigger : public CondTrigger
+{
+public:
+ explicit RunInCondTrigger(RunInT runIn, const Type type, const std::string& condId,
+ const bt2c::CStringView nameSuffix = {}) :
+ CondTrigger {type, condId, nameSuffix},
+ _mRunIn {std::move(runIn)}
+ {
+ }
+
+ explicit RunInCondTrigger(const Type type, const std::string& condId,
+ const bt2c::CStringView nameSuffix = {}) :
+ RunInCondTrigger {RunInT {}, type, condId, nameSuffix}
+ {
+ }
+
+ void operator()() noexcept override
+ {
+ runIn(_mRunIn);
+ }
+
+private:
+ RunInT _mRunIn;
};
-#define COND_TRIGGER_PRE_BASIC(_cond_id, _suffix, _func) \
- { \
- .type = COND_TRIGGER_TYPE_PRE, \
- .func_type = COND_TRIGGER_FUNC_TYPE_BASIC, \
- .cond_id = _cond_id, \
- .suffix = _suffix, \
- .func = { \
- .basic = _func, \
- } \
- }
-
-#define COND_TRIGGER_POST_BASIC(_cond_id, _suffix, _func) \
- { \
- .type = COND_TRIGGER_TYPE_POST, \
- .func_type = COND_TRIGGER_FUNC_TYPE_BASIC, \
- .cond_id = _cond_id, \
- .suffix = _suffix, \
- .func = { \
- .basic = _func, \
- } \
- }
-
-#define COND_TRIGGER_PRE_RUN_IN_COMP_CLS_INIT(_cond_id, _suffix, _func) \
- { \
- .type = COND_TRIGGER_TYPE_PRE, \
- .func_type = COND_TRIGGER_FUNC_TYPE_RUN_IN_COMP_CLS_INIT, \
- .cond_id = _cond_id, \
- .suffix = _suffix, \
- .func = { \
- .run_in_comp_cls_init = _func, \
- } \
- }
-
-#define COND_TRIGGER_POST_RUN_IN_COMP_CLS_INIT(_cond_id, _suffix, _func) \
- { \
- .type = COND_TRIGGER_TYPE_POST, \
- .func_type = COND_TRIGGER_FUNC_TYPE_RUN_IN_COMP_CLS_INIT, \
- .cond_id = _cond_id, \
- .suffix = _suffix, \
- .func = { \
- .run_in_comp_cls_init = _func, \
- } \
- }
-
-void cond_main(int argc, const char *argv[],
- const struct cond_trigger triggers[],
- size_t trigger_count);
-
-#endif /* TESTS_LIB_CONDS_UTILS_H */
+/*
+ * List of condition triggers.
+ */
+using CondTriggers = std::vector<CondTrigger::UP>;
+
+/*
+ * The entry point of a condition trigger program.
+ *
+ * Call this from your own main() with your list of condition triggers
+ * `triggers`.
+ *
+ * Each condition trigger of `triggers` must have a unique name, as
+ * returned by CondTrigger::name().
+ *
+ * This function uses `argc` and `argv` to respond to one of the
+ * following commands:
+ *
+ * `list`:
+ * Prints a list of condition triggers as a JSON array of objects.
+ *
+ * Each JSON object has:
+ *
+ * `cond-id`:
+ * The condition ID of the trigger, as returned by
+ * CondTrigger:condId().
+ *
+ * `name`:
+ * The condition ID name, as returned by CondTrigger::name().
+ *
+ * `run`:
+ * Runs the triggering function of the condition trigger at the
+ * index specified by the next command-line argument.
+ *
+ * For example,
+ *
+ * $ my-cond-trigger-program run 45
+ *
+ * would run the function of the condition trigger `triggers[45]`.
+ *
+ * The program is expected to abort through a libbabeltrace2
+ * condition failure.
+ */
+void condMain(int argc, const char **argv, const CondTriggers& triggers) noexcept;
+
+#endif /* TESTS_LIB_CONDS_UTILS_HPP */
projects / babeltrace.git / blobdiff