Add command line interface to attention handler
Allows configuring attention handler before starting attention
GPIO monitor.
Signed-off-by: Ben Tyner <ben.tyner@ibm.com>
Change-Id: I7a8d91703c14ce6d8eb3efddb135f11bf6baf06e
diff --git a/attn/attn_main.cpp b/attn/attn_main.cpp
index e4766f0..c0e2451 100644
--- a/attn/attn_main.cpp
+++ b/attn/attn_main.cpp
@@ -3,15 +3,54 @@
#include <attn_handler.hpp>
#include <attn_monitor.hpp>
+#include <algorithm>
+
+/*
+ * @brief Search the command line arguments for an option
+ *
+ * @param i_begin command line args vector begin
+ * @param i_end command line args vector end
+ * @param i_option configuration option to look for
+ *
+ * @return true = option found on command line
+ */
+bool getCliOption(char** i_begin, char** i_end, const std::string& i_option)
+{
+ return (i_end != std::find(i_begin, i_end, i_option));
+}
+
+/*
+ * @brief Search the command line arguments for a setting value
+ *
+ * @param i_begin command line args vector begin
+ * @param i_end command line args vectory end
+ * @param i_setting configuration setting to look for
+ *
+ * @return value of the setting or 0 if setting not found or value not given
+ */
+char* getCliSetting(char** i_begin, char** i_end, const std::string& i_setting)
+{
+ char** value = std::find(i_begin, i_end, i_setting);
+ if (value != i_end && ++value != i_end)
+ {
+ return *value;
+ }
+ return 0; // nullptr
+}
+
/**
* @brief Attention handler application main()
*
* This is the main interface to the Attention handler application, it will
* initialize the libgpd targets and start a gpio mointor.
*
+ * Command line arguments:
+ *
+ * breakpoints - enables breakpoint special attn handling
+ *
* @return 0 = success
*/
-int main()
+int main(int argc, char* argv[])
{
int rc = 0; // return code
@@ -37,9 +76,13 @@
}
else
{
+ // Check command line args for breakpoint handling enable option
+ bool bp_enable = getCliOption(argv, argv + argc, "-breakpoints");
+
// Creating a vector of one gpio to monitor
std::vector<std::unique_ptr<attn::AttnMonitor>> gpios;
- gpios.push_back(std::make_unique<attn::AttnMonitor>(line, config, io));
+ gpios.push_back(
+ std::make_unique<attn::AttnMonitor>(line, config, io, bp_enable));
io.run(); // start GPIO monitor
}